JP2019145290A - Lighting fixture - Google Patents

Abstract

To perform stable infrared communication even through a fixture body having a light source part is structured so that its posture to a ceiling can be changed.SOLUTION: A ceiling-embedded type lighting fixture 1 includes: a lamp unit 100 arranged to be embedded in an opening part 2a of a ceiling 2; an infrared communication module 101 receiving infrared signals for controlling the lighting fixture 1; and an optical member (reflection member 102) leading the infrared signals to the infrared communication module 101. The lamp unit 100 has a fixture body 110 having a light source part 111. The fixture body 110 is structured so that its posture to the ceiling 2 can be changed. The infrared communication module 101 and the optical member (reflection member 102) are mounted on the fixture body 110.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a lighting fixture, and more particularly to a ceiling-embedded lighting fixture that is embedded in a ceiling opening.

  2. Description of the Related Art Conventionally, ceiling-embedded lighting fixtures such as downlights embedded in a ceiling opening are known (for example, Patent Document 1). The ceiling-embedded lighting fixture includes, for example, a fixture main body in which a light source module serving as a light source portion is arranged, and a frame body portion for holding the fixture main body in an opening of the ceiling.

  Among the downlights, there is known a universal type downlight that can change the irradiation direction of the illumination light emitted from the light source module by changing the posture of the fixture body (lamp).

JP 2008-311238 A

  As lighting fixtures such as downlights, those having an individual control function are being studied so that the light emission modes of the lighting fixtures can be controlled for each unit. For example, a downlight equipped with an infrared communication module capable of receiving an infrared signal for controlling the light emission mode of illumination light has been studied. In this case, by receiving an infrared signal transmitted from the infrared remote controller by the infrared communication module, for example, lighting light on / off control or dimming control can be individually performed.

  In addition, it has been studied that a universal type downlight capable of changing the irradiation direction of illumination light is configured to be individually controlled by mounting an infrared communication module. In this case, it is conceivable to attach the infrared communication module to the instrument body having the light source module.

  However, when the infrared communication module is attached to the instrument body, when the instrument body is rotated to change the illumination direction of the illumination light, the position of the infrared communication module is moved in conjunction with the rotation of the instrument body. Will end up. As a result, there is a problem that it is difficult to perform stable infrared communication because the communication range (infrared receivable range) of infrared communication by the infrared communication module varies.

  In particular, in the universal type downlight, it is conceivable to make infrared communication by making use of a gap between the instrument body and the frame body and passing an infrared signal through the gap. In this case, it is difficult for the infrared signal to reach the infrared communication module, and it is difficult to perform stable infrared communication.

  The present invention has been made in order to solve such a problem, and stable infrared communication can be performed even if the instrument main body having the light source unit is configured to be able to change the posture with respect to the ceiling. It aims at providing a lighting fixture.

  In order to achieve the above object, one aspect of a lighting fixture according to the present invention is a ceiling-embedded lighting fixture that controls a lighting unit that is embedded in a ceiling opening and the lighting fixture. And an optical member for guiding the infrared signal to the infrared communication module, wherein the lamp unit has a fixture body having a light source, and the fixture body is provided on the ceiling. The infrared communication module is attached to the fixture body, and the optical member is attached to the lamp unit.

  ADVANTAGE OF THE INVENTION According to this invention, even if it was comprised so that the fixture main body which has a light source part could change the attitude | position with respect to a ceiling, stable infrared communication can be performed.

It is sectional drawing which shows typically the lighting fixture which concerns on Embodiment 1 of the state embedded and arrange | positioned at the ceiling. 3 is a perspective view of a lamp unit in the lighting apparatus according to Embodiment 1. FIG. 3 is a perspective view of a lamp unit in the lighting apparatus according to Embodiment 1. FIG. 3 is a cross-sectional view of a lamp unit in the lighting fixture according to Embodiment 1. FIG. 3 is a plan view of a lamp unit in the lighting fixture according to Embodiment 1. FIG. FIG. 6 is a diagram for explaining a turning operation of the fixture main body in the lighting fixture according to Embodiment 1. In the lighting fixture which concerns on Embodiment 1, it is a perspective view which shows a state when the fixture main body is not rotated. In the lighting fixture which concerns on Embodiment 1, it is a perspective view which shows a state when the fixture main body is rotated to the maximum. 6 is a perspective view of a lamp unit in a lighting fixture according to Embodiment 2. FIG. FIG. 10 is a perspective view of a lamp unit in a lighting fixture according to Embodiment 3.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that each of the embodiments described below shows a specific example of the present invention. Therefore, numerical values, shapes, materials, components, component positions, connection forms, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  Each figure is a mimetic diagram and is not necessarily illustrated strictly. In each figure, substantially the same configuration is denoted by the same reference numeral, and redundant description may be omitted or simplified.

  In the present specification and drawings, the X axis, the Y axis, and the Z axis represent the three axes of the three-dimensional orthogonal coordinate system. In this embodiment, the Z axis direction is the vertical direction, and the Z axis is perpendicular to the Z axis. This direction (the direction parallel to the XY plane) is the horizontal direction. The X axis and the Y axis are orthogonal to each other, and both are orthogonal to the Z axis.

(Embodiment 1)
First, a schematic configuration of the lighting fixture 1 according to Embodiment 1 will be described with reference to FIG. FIG. 1 is a cross-sectional view schematically showing a lighting fixture 1 according to Embodiment 1 in a state of being embedded in a ceiling 2.

  As shown in FIG. 1, a lighting fixture 1 is a ceiling-embedded lighting fixture such as a downlight, and irradiates illumination light downward (floor or the like) by being embedded in a ceiling 2 of a building.

  The lighting fixture 1 includes a lamp unit 100, a power supply unit 200, an infrared communication module 101 that receives an infrared signal, and a reflecting member 102 that guides the infrared signal to the infrared communication module 101.

  The lamp unit 100 and the power supply unit 200 are structurally separated and are installed at different locations on the ceiling 2. Specifically, the lamp unit 100 is embedded in the opening 2 a of the ceiling 2. Further, the power supply unit 200 is disposed on the back surface (ceiling back) of the ceiling 2. The opening 2 a of the ceiling 2 is an attachment hole for attaching the lamp unit 100 to the ceiling 2. The opening 2a is a through-hole penetrating the ceiling 2, for example, a circular hole having a circular opening.

  The lamp unit 100 is a lamp body having a light source unit 111 and emits illumination light. The detailed configuration of the lamp unit 100 will be described later.

  The lamp unit 100 includes an infrared communication module 101 that receives an infrared signal. Specifically, the infrared communication module 101 is provided in the lamp unit 100.

  The infrared communication module 101 receives an infrared signal for controlling the lighting fixture 1. The wavelength of the infrared signal is 945 nm as an example, but is not limited thereto. The infrared signal is transmitted from, for example, an infrared remote controller 3 having an infrared transmission function. That is, both the lamp unit 100 and the infrared remote controller 3 have an infrared communication function.

  The infrared remote controller 3 that performs infrared communication with the infrared communication module 101 is operated by a user. When the user operates the infrared remote controller 3, an infrared signal for controlling the lighting fixture 1 is transmitted from the infrared remote controller 3.

  In the present embodiment, for example, the infrared remote controller 3 transmits an infrared signal (individual illumination control infrared signal) for controlling the illumination mode of illumination light emitted from the lamp unit 100 (light source unit 111). In this case, the infrared communication module 101 of the luminaire 1 uses an infrared signal (infrared signal for individual illumination control) for controlling the illumination mode of the illumination light of the light source unit 111 as an infrared signal for controlling the luminaire 1. Receive.

  Specifically, the user operates the infrared remote controller 3 to transmit an illumination control infrared signal to the luminaire 1 so that the lighting fixture 1 is turned on or off, or the dimming control or dimming of the luminaire 1 is performed. Control. That is, the user operates the infrared remote controller 3 when it is desired to individually control one lighting fixture 1. Thereby, from the infrared remote controller 3, an infrared signal for performing turning on / off control of the lamp unit 100 (light source unit 111), or dimming control or toning control of the lamp unit 100 (light source unit 111) is performed. An infrared signal such as an infrared signal is transmitted.

  Further, the infrared remote controller 3 may transmit an infrared signal (pairing infrared signal) for pairing the lighting fixture 1 and the wireless remote controller 4. In this case, the infrared communication module 101 of the lighting fixture 1 receives an infrared signal (pairing infrared signal) for associating the lighting fixture 1 with the wireless remote controller 4 as an infrared signal for controlling the lighting fixture 1.

  The infrared communication module 101 and the power supply unit 200 are connected by a first electric wire 310 such as a signal cable (control line), and the infrared signal received by the infrared communication module 101 passes through the first electric wire 310 as a control signal. To the power supply unit 200. That is, the first electric wire 310 transmits a control signal corresponding to the infrared signal received by the infrared communication module 101 to the power supply unit 200. The first electric wire 310 is a control line such as a signal cable, for example.

  The power supply unit 200 includes a wireless communication module 201 that receives a wireless signal. The wireless communication module 201 receives a wireless signal for controlling the lighting fixture 1. The wireless communication module 201 includes a wireless antenna that receives a wireless signal and a processing circuit (IC) that processes the wireless signal received by the wireless antenna. The wireless antenna is, for example, a pattern antenna provided on a substrate. The radio signal received by the radio antenna is converted into a predetermined control signal (electric signal) by the processing circuit and output to the control circuit 220 of the power supply unit 200. Note that the frequency of the wireless signal received by the wireless communication module 201 is the UHF band, which is the 920 MHz band as an example, but is not limited thereto.

  A wireless signal received by the wireless communication module 201 is transmitted from, for example, a wireless remote controller (radio remote controller) 4 having a wireless transmission function. The wireless remote controller 4 may be a mobile terminal that can be moved, but may be attached to a wall or the like. The wireless remote controller 4 is installed on, for example, an indoor wall and performs various controls on one or a plurality of lighting fixtures 1 installed indoors.

  The wireless remote controller 4 that performs wireless communication with the wireless communication module 201 is operated by a user. When the user operates the wireless remote controller 4, a wireless signal for controlling the lighting fixture 1 is transmitted from the wireless remote controller 4.

  For example, a wireless signal (pairing wireless signal) for pairing the wireless remote controller 4 and the lighting fixture 1 is transmitted from the wireless remote controller 4. In this case, the wireless communication module 201 of the lighting device 1 receives a wireless signal (pairing wireless signal) for associating the wireless remote controller 4 with the lighting device 1 as a wireless signal for controlling the lighting device 1. To do.

  In addition, the wireless remote controller 4 includes a plurality of lighting fixtures 1 paired with the wireless remote control 4 as one group, and a wireless signal (collective lighting control) for simultaneously controlling the plurality of lighting fixtures 1 belonging to the one group. Wireless signal) is also transmitted. In this case, the wireless communication module 201 of the lighting fixture 1 uses a plurality of lighting fixtures 1 (a plurality of lighting fixtures 1 in one group) paired with the wireless remote controller 4 as radio signals for controlling the lighting fixture 1. A radio signal for simultaneous control (radio signal for batch illumination control) is received.

  Here, an example in the case of controlling the lighting fixture 1 using the infrared remote controller 3 and the wireless remote controller 4 will be described. In particular, a pairing setting method will be described.

  First, the wireless remote controller 4 is operated to place the wireless remote controller 4 in a pairing mode, and a wireless signal for pairing is transmitted from the wireless remote controller 4 to the lighting fixture 1. Thereby, the wireless communication module 201 of the lighting fixture 1 receives the pairing wireless signal from the wireless remote controller 4. At this time, the lighting fixture 1 to be paired with the wireless remote controller 4 may be one or a plurality of lighting fixtures, and one or a plurality of lighting fixtures 1 that have received the pairing wireless signal are connected to the wireless remote control 4. Candidates to be paired.

  Next, while the pairing wireless signal is transmitted from the wireless remote controller 4, the pairing infrared signal is sent to the specific lighting device 1 to be paired with the wireless remote controller 4 by operating the infrared remote controller 3. Send. The infrared signal for pairing transmitted from the infrared remote controller 3 is received by the infrared communication module 101 of the lighting fixture 1.

  Thereby, the specific lighting fixture 1 which received the infrared signal for pairing is paired with the radio | wireless remote control 4 which transmits the radio signal for pairing. Moreover, when performing pairing with respect to the plurality of lighting fixtures 1, the infrared remote control 3 corresponding to each lighting fixture 1 is sequentially operated, and a pairing infrared signal is sequentially transmitted to each of the plurality of lighting fixtures 1. Thus, one specific wireless remote controller 4 and a plurality of specific lighting fixtures 1 can be paired.

  The lighting mode of one or a plurality of specific lighting fixtures 1 paired with the specific wireless remote controller 4 is simultaneously controlled by a collective lighting control wireless signal from the specific wireless remote control 4. That is, when the pairing setting is completed, by operating one specific wireless remote controller 4, the lighting control is simultaneously performed on a plurality of specific lighting fixtures 1 belonging to one paired group, Dimming control can be performed at the same time.

  Moreover, even after the pairing with the plurality of lighting fixtures 1 is completed, it is also possible to individually control the lighting mode of each lighting fixture 1 by operating the infrared remote controller 3 corresponding to each lighting fixture 1. .

  Note that in this embodiment, the wireless communication module 201 has only a function of receiving a wireless signal, but is not limited thereto, and may have a function of transmitting a wireless signal. In this case, if the wireless remote controller 4 has a function of receiving a wireless signal, the wireless remote controller 4 can receive the wireless signal transmitted from the wireless communication module 201.

  The power supply unit 200 has a power supply function for generating power for causing the light source unit 111 to emit light. Specifically, the power supply unit 200 converts AC power from a commercial power source supplied from the power terminal block 205 into DC power by the power supply circuit 210.

  The power supply unit 200 and the lamp unit 100 (light source unit 111) are connected by a second electric wire 320, and the direct-current power generated by the power supply unit 200 is transmitted through the second electric wire 320 to the light source unit 111 of the lamp unit 100. To be supplied. The second electric wire 320 is a power supply line such as a power cable.

  In the present embodiment, the power supply unit 200 further has an illumination control function for controlling the illumination mode of the lamp unit 100 (light source unit 111). Specifically, the power supply unit 200 controls the illumination mode (light emission mode) of the light source unit 111 according to the wireless signal received by the wireless communication module 201 or the infrared signal received by the infrared communication module 101 by the control circuit 220. . For example, the power supply unit 200 causes the control circuit 220 to turn on or off the lamp unit 100 (light source unit 111), change the brightness of the lamp unit 100 (light source unit 111), or change the light color or color temperature. To do. In the present embodiment, the control circuit 220 is incorporated in the same circuit board together with the power supply circuit 210.

  The power supply unit 200 includes a wireless communication module 201 and a housing 202 that houses the wireless communication module 201. Furthermore, the power supply unit 200 includes a circuit board 203 and a plurality of circuit elements 204.

  The housing 202 houses the wireless communication module 201 and a circuit board 203 on which a plurality of circuit elements 204 are mounted. For example, the housing 202 is a case made of metal or insulating resin. In the present embodiment, the housing 202 is a metal case. The housing 202 is disposed behind the ceiling.

  The circuit board 203 is a printed wiring board on which metal wiring having a predetermined shape is formed. A plurality of circuit elements 204 are mounted on the circuit board 203.

  The plurality of circuit elements 204 include a power supply circuit element that configures a power supply circuit 210 that generates power for causing the light source unit 111 to emit light, and a control circuit element that configures a control circuit 220 that controls the illumination mode of the light source unit 111. Is included.

  The power supply circuit element constituting the power supply circuit 210 and the control circuit element constituting the control circuit 220 include, for example, a capacitor element (electrolytic capacitor, ceramic capacitor, etc.), a resistor element (resistor, etc.), a rectifier circuit element, a coil element, a transformer A noise filter, a diode, an integrated circuit element (IC), a semiconductor element (such as an FET), or the like.

  The power supply circuit 210 converts, for example, AC power from an external power source such as a commercial power source into DC power of a predetermined level by rectification, smoothing, step-down, and the like. The control circuit 220 is a dimming control circuit, a toning control circuit, or the like. The DC power output from the power supply circuit 210 is controlled by the control circuit 220.

  The power supply unit 200 is provided with a power supply terminal block 205. An electric wire such as a VVF cable is connected to the power terminal block 205, and AC power from a commercial power source is supplied to the power terminal block 205 through the electric wire. The AC power supplied to the power supply terminal block 205 is supplied to the power supply circuit 210.

  In the luminaire 1 configured as described above, for example, when an infrared signal transmitted from the infrared remote controller 3 is received (received) by the infrared communication module 101, the lamp unit 100 (light source) is selected according to the instruction content of the infrared signal. Section 111) is turned on or off, the brightness of the lamp unit 100 (light source section 111) is changed, or the light color or color temperature is changed.

  In this case, when the infrared communication module 101 mounted on the lamp unit 100 receives an infrared signal, the infrared communication module 101 converts the infrared signal into a predetermined control signal (electric signal). It is transmitted to the control circuit 220 of the power supply unit 200.

  Then, the control signal based on the infrared signal transmitted from the infrared communication module 101 to the power supply unit 200 via the first electric wire 310 is processed by the control circuit 220 and the power supply circuit 210 to become a desired DC power, and the second It is supplied to the light source unit 111 of the lamp unit 100 via the electric wire 320. Thereby, the illumination mode of the light source unit 111 changes according to the instruction content of the infrared signal.

  For example, when the infrared signal received by the infrared communication module 101 is a turn-on signal or a turn-off signal, supply of DC power from the power supply unit 200 (power supply circuit 210) to the light source unit 111 is started or stopped. Further, when the infrared signal received by the infrared communication module 101 is a dimming signal (PWM dimming signal or phase control dimming signal) or a toning signal, the DC power subjected to the dimming control or toning control is supplied to the power supply circuit 210. To the light source unit 111. Thereby, the light source unit 111 is dimmed and the brightness of the illumination light is changed, or the light source unit 111 is toned and the light color or the color temperature is changed.

  The same applies to the case where the illumination mode of the luminaire 1 is changed by operating the wireless remote controller 4 (when lighting on / off, dimming control, or the like is performed).

[Lighting unit]
Next, a detailed configuration of the lamp unit 100 in the lighting fixture 1 according to Embodiment 1 will be described in detail with reference to FIGS. 2 and 3 are perspective views of the lamp unit 100 in the lighting fixture 1 according to Embodiment 1. FIG. FIG. 4 is a sectional view of the lamp unit 100. FIG. 5 is a plan view of the lamp unit 100. In FIG. 4, only the cross section of the lamp unit 100 is illustrated. 2 to 5, the first electric wire 310 and the second electric wire 320 are omitted.

  As shown in FIGS. 2 to 5, the lamp unit 100 includes a fixture main body 110 having a light source 111 (see FIG. 4) and a frame body 120.

  The lighting fixture 1 in this Embodiment is a universal type downlight which can change the irradiation direction of the illumination light irradiated from the lighting fixture 1. FIG. Therefore, the lamp unit 100 is configured so that the posture of the fixture body 110 with respect to the ceiling 2 can be changed. That is, by changing the posture of the fixture body 110, the irradiation direction of the illumination light emitted from the light source unit 111 arranged in the lighting fixture 1 can be changed.

[Equipment body]
The instrument body 110 is a lamp having a light source unit 111, and emits illumination light by the light source unit 111. As described above, the instrument main body 110 is configured so that the posture with respect to the ceiling 2 can be changed. Specifically, the attitude of the ceiling body 2 with respect to the ceiling surface 2b is changed by rotating the instrument body 110 so that the angle formed by the optical axis of the light source unit 111 and the ceiling surface 2b of the ceiling 2 changes. In this Embodiment, the instrument main body 110 is further comprised so that it can rotate horizontally with respect to the ceiling surface 2b of the ceiling 2. As shown in FIG.

  The instrument main body 110 is supported by the frame body portion 120. Specifically, the instrument main body 110 is supported by the frame body portion 120 so that the posture of the ceiling 2 with respect to the ceiling surface 2b can be changed and can be rotated horizontally with respect to the ceiling surface 2b of the ceiling 2. .

  In the present embodiment, the instrument main body 110 includes a light source unit 111, a base 112, a reflecting plate 113, and a lens 114.

[Light source]
The light source unit 111 illustrated in FIG. 4 is a light source module that emits white light as illumination light, for example. In this Embodiment, the light source part 111 is an LED module (LED light source) comprised by LED. As an example, the light source unit 111 has a COB (Chip On Board) structure, and includes a substrate, an LED mounted on the substrate, and a sealing member that seals the LED. The LED and the sealing member serve as a light emitting unit of the light source unit 111.

  The substrate is a mounting substrate for mounting the LED, and is, for example, a ceramic substrate, a resin substrate, a metal base substrate, or the like. The substrate is formed with a pair of electrode terminals for receiving DC power from the power supply unit 200 and a metal wiring having a predetermined pattern for electrically connecting the LEDs. A second electric wire 320 is connected to the pair of electrode terminals.

  The LED is an example of a light emitting element, and is, for example, a bare chip that emits monochromatic visible light. Specifically, the LED is a blue LED chip that emits blue light when energized. For example, a plurality of LEDs are arranged in a matrix on the substrate. Note that at least one LED may be arranged.

  The sealing member is, for example, a translucent resin. The sealing member in this Embodiment contains the fluorescent substance as a wavelength conversion material which wavelength-converts the light from LED. The sealing member is, for example, a phosphor-containing resin in which a phosphor is dispersed in a silicone resin. As the phosphor particles, when the LED is a blue LED chip, for example, a YAG yellow phosphor can be used to obtain white light. In this case, the yellow phosphor absorbs part of the blue light emitted from the blue LED chip and is excited to emit yellow light. Then, the yellow light and the blue light that is not absorbed by the yellow phosphor are mixed and emitted from the light source unit 111 as white light.

  In addition, although the sealing member is formed in a circular shape so as to collectively seal all LEDs, a plurality of LEDs may be sealed in a line shape for each column, or each LED may be sealed one by one. You may seal separately.

  In addition, the light source unit 111 in the present embodiment is a light source module that can perform dimming control and toning control. Therefore, the light source unit 111 includes a plurality of light emitting units having different light colors or color temperatures, for example. In this case, the light color and color temperature of each light emitting part can be made different by using LEDs having different light colors or adjusting the type and amount of the wavelength conversion material (phosphor).

  The light source unit 111 configured as described above is attached to the base 112 by a holder or the like. For example, the light source unit 111 can be disposed at a predetermined position of the base 112 by pressing the light source unit 111 against the base 112 with a holder and fixing the holder and the base 112 with screws or the like. In the present embodiment, the light source unit 111 is disposed at the center of the optical axis of the lamp unit 100.

[Base]
The base 112 is a base member on which the light source unit 111 is disposed. The base 112 supports the light source unit 111 and also functions as a heat sink that dissipates heat generated by the light source unit 111. Therefore, the base 112 is preferably made of a metal material such as aluminum or a material having high thermal conductivity such as a high thermal conductive resin. In the present embodiment, the base 112 is made of aluminum die casting.

  As shown in FIG. 4, the base 112 is provided with a recess having an opening 112a. In the recess of the base 112, the light source unit 111, the reflection plate 113, and the lens 114 are arranged. A frame-like baffle is disposed in the opening 112a of the base 112.

  The base 112 is provided with a plurality of heat radiation fins 112b. Each of the plurality of radiating fins 112b has a flat plate shape, and is erected on the surface of the portion of the instrument main body 110 opposite to the concave portion. By providing the radiation fins 112b, the heat generated in the light source unit 111 can be efficiently radiated.

[reflector]
The reflection plate 113 shown in FIG. 4 is a reflection member that reflects the light emitted from the light source unit 111. Specifically, the inner surface of the reflecting plate 113 is a reflecting surface that reflects light from the light source unit 111, and the reflecting plate 113 directs light emitted from the light source unit 111 to a desired direction by the reflecting surface. Is controlling. In the present embodiment, the reflector 113 controls the light distribution so that the light emitted from the light source unit 111 enters the lens 114. As an example, the reflecting plate 113 has a funnel-shaped cylindrical shape on the inner surface, and the inner diameter gradually increases from the light incident side (light source side) opening toward the light emission side opening. .

  The reflection plate 113 can be formed of, for example, a resin material or a metal material. Specifically, the reflecting plate 113 may be a white resin molded product made using a resin material such as PBT (polybutylene terephthalate), or a metal film such as aluminum is formed on the inner surface of the resin molded product. It may be formed or a metal part formed of a metal material such as aluminum.

  The reflection plate 113 configured as described above is attached to the base 112. Specifically, the reflection plate 113 is indirectly attached to the base 112 by being attached to a holder fixed to the base 112 in order to hold the light source unit 111 on the base 112.

[lens]
As shown in FIGS. 2 and 4, the lens 114 is disposed so as to cover the light source unit 111. Specifically, the lens 114 is attached to the base 112 so as to cover the opening of the reflection plate 113.

  The lens 114 transmits light emitted from the light source unit 111 and light reflected by the reflecting plate 113. Specifically, the lens 114 has a function of controlling light distribution of light emitted from the light source unit 111 and light reflected by the reflection plate 113 in a predetermined direction. In the present embodiment, the lens 114 has a Fresnel structure having a Fresnel lens function. The lens 114 further has a light diffusion structure. The light diffusion structure is, for example, a plurality of minute irregularities (dots, prisms) formed on the surface of the lens 114 on the light emission side.

  The lens 114 is formed of a light transmissive material having a light transmissive property. Specifically, the lens 114 is made of a transparent resin material such as acrylic or polycarbonate, or a glass material.

[Frame body]
As shown in FIG. 1, the frame body 120 is an attachment member for attaching the instrument main body 110 to the opening 2 a of the ceiling 2. The frame body 120 holds the instrument main body 110. Specifically, the frame body 120 is attached to the opening 2 a of the ceiling 2 in order to hold the instrument main body 110 in the opening 2 a of the ceiling 2.

  Moreover, the frame body part 120 is holding | maintaining the instrument main body 110 so that rotation is possible. In the present embodiment, the frame body 120 further holds the instrument main body 110 so as to be horizontally rotatable.

  As shown in FIGS. 3 and 4, the frame body 120 is configured as a frame body unit having a frame body 121, a rotating plate 122, and an attachment spring 123.

  The frame body 121 has a cup-like substantially cylindrical shape having a first opening portion on the vertically lower side and a second opening portion on the vertically upper side. The frame main body 121 is made of, for example, a metal material such as aluminum. In the present embodiment, the frame body 121 is made of aluminum die casting. The material of the frame body 121 is not limited to a metal material, and may be a resin material.

  A flange-like flange is formed in the first opening on the vertically lower side of the frame body 121. By pressing the inner side surface of the opening 2a of the ceiling 2 with the three attachment springs 123 provided on the outer surface of the frame body 121 with the collar portion of the frame body 121 abutting against the ceiling surface 2b of the ceiling 2, the lamp The unit 100 can be held in the opening 2a. The attachment spring 123 is a spring member for attaching the lamp unit 100 to the opening 2a of the ceiling 2, and has a leaf spring structure. The attachment spring 123 is formed of, for example, a long metal plate.

  The rotating plate 122 is a connecting member that connects the frame body 120 to the instrument main body 110. The rotating plate 122 is connected to the instrument main body 110. In the present embodiment, the rotating plate 122 is fixed to the frame main body 121, and the rotating plate 122 connects the frame main body 121 of the frame body portion 120 and the base 112 of the instrument main body 110. The rotating plate 122 is made of, for example, a metal plate.

  Specifically, as shown in FIG. 3, the rotating plate 122 includes a support arm 122 a and an annular plate frame-shaped rotating frame 122 b. The support arm 122a is provided on a part of the rotating frame 122b so as to stand up from the rotating frame 122b.

  The rotating plate 122 functions as a posture changing member for enabling the posture of the instrument main body 110 to be changed. Specifically, the support arm 122a of the rotating plate 122 is provided with a slit 122a1 for rotating the instrument main body 110 to change the posture with respect to the ceiling surface 2b. Therefore, the slit 122a1 is formed with a constant width (slit width) along the rotation direction of the instrument body 110.

  The support arm 122a of the rotating plate 122 is sandwiched between the base 112 and the ring member 124 through the slit 122a1. Specifically, a screw 125 is inserted into a through hole of each ring member 124 with a support arm sandwiched between a pair of ring members 124 having an outer diameter larger than the width of the slit 122a1, and the screw 125 is screwed into the base 112. The support arm 122a is held between the base 112 and the ring member 124 by tightening the screw 125.

  With this configuration, by rotating the base 112, the screw 125 screwed into the base 112 moves along the slit 122a1. Thereby, since the instrument main body 110 can be rotated along the shape of slit 122a1, the attitude | position with respect to the ceiling surface 2b of the instrument main body 110 can be changed.

  The rotated instrument body 110 can be held at an arbitrary rotation angle by the holding force for holding the support arm 122a by the base 112 and the ring member 124. In this case, by adjusting the tightening torque of the screw 125, the holding force for holding the support arm 122a by the base 112 and the ring member 124 can be adjusted.

  The rotating plate 122 also functions as a horizontal rotating member for enabling the instrument main body 110 to rotate horizontally with respect to the ceiling surface 2 b of the ceiling 2. Specifically, the rotating frame 122b of the rotating plate 122 is configured to be horizontally rotatable with respect to the frame body portion 120 within a plane parallel to the ceiling surface 2b. In this case, the end of the rotating frame 122b on the frame body part 120 side is fixed to the frame body 121 so as to slide with the end surface of the opening on the ceiling 2 side of the frame body 121. Thereby, the instrument main body 110 can be horizontally rotated in a plane parallel to the ceiling surface 2b.

  As shown in FIG. 4, the frame 120 configured in this way surrounds a part of the instrument body 110 with a gap G from the instrument body 110. That is, a gap G exists between the frame body portion 120 and the instrument body 110 along the circumferential direction. In the present embodiment, the frame body portion 120 is arranged so that the frame main body 121 surrounds the opening 112 a of the base 112 of the instrument main body 110, and the inner surface of the frame main body 121 and the opening 112 a of the base 112. There is a gap G between the outer surface of the side walls.

[Infrared communication module]
The infrared communication module 101 has a function of receiving an infrared signal. Specifically, the infrared communication module 101 converts the received infrared signal into a predetermined control signal (electric signal). Since the infrared communication module 101 in this embodiment has only an infrared communication function, it is a small module.

  As shown in FIGS. 2 and 4, the infrared communication module 101 is provided in the lamp unit 100. Specifically, the infrared communication module 101 is provided in the instrument main body 110. In the present embodiment, the infrared communication module 101 is attached to the side surface of the base 112 of the instrument main body 110. Specifically, the infrared communication module 101 is attached to the side surface of the radiation fin 112 b of the base 112. Therefore, the infrared communication module 101 rotates in conjunction with the rotation of the instrument main body 110 (base 112).

  The infrared communication module 101 provided in the lamp unit 100 is provided in the fixture body 110 so as to be able to receive an infrared signal through a gap G between the frame body portion 120 and the fixture body 110 (base 112). That is, the gap G functions as an infrared signal opening for allowing the infrared signal to pass therethrough.

  As shown in FIG. 4, the infrared communication module 101 includes an infrared receiving unit 101a, a circuit board 101b, a case 101c, and a translucent cover 101d.

  The infrared receiving unit 101a is a receiving unit that receives an infrared signal. Specifically, the infrared receiving unit 101a is an infrared receiving unit that receives infrared light that is an infrared signal. For example, the infrared receiving unit 101 a receives an infrared signal transmitted from the infrared remote controller 3. The infrared receiving unit 101a is disposed at a position facing the through hole 101c1 provided in the case 101c.

  An infrared receiving unit 101a is mounted on the circuit board 101b, and a plurality of circuit elements (not shown) are mounted. The plurality of circuit elements mounted on the circuit board 101b constitute a processing circuit that converts an infrared signal received by the infrared receiving unit 101a into a predetermined control signal (electric signal). The control signal generated by this processing circuit is transmitted to the control circuit 220 of the power supply unit 200 via the first electric wire 310 (FIG. 1).

  The case 101c is a housing that houses the infrared receiving unit 101a and a circuit board 101b on which a plurality of circuit elements are mounted. The case 101c is made of, for example, resin, but is not limited thereto. Although the case 101c in the present embodiment is divided into two parts, it may be an integral object.

  The case 101c is provided with a through hole 101c1 for allowing an infrared signal to pass therethrough. The through hole 101c1 of the infrared communication module 101 is disposed at a position facing the gap G between the frame body portion 120 and the instrument main body 110. Thereby, the infrared receiving part 101a is arrange | positioned in the position which faces the clearance gap G between the frame 120 and the instrument main body 110 through the through-hole 101c1 of the case 101c. Thereby, the infrared signal transmitted from the infrared remote controller 3 reaches the infrared receiver 101a through the gap G between the frame body 120 and the instrument body 110.

  The translucent cover 101d covers the through hole 101c1 provided in the case 101c. The translucent cover 101d is made of a material that transmits infrared signals. The translucent cover 101d is a rectangular transparent plate, and is made of, for example, a transparent resin material or a glass material. By covering the through-hole 101c1 with the translucent cover 101d, it is possible to prevent foreign matters such as dust from entering the case 101c from the through-hole 101c1. Thereby, it can suppress that dust etc. adhere to the infrared receiving part 101a, and cannot receive an infrared signal correctly.

[Reflection member]
The reflecting member 102 is an example of an optical member that guides an infrared signal to the infrared communication module 101. For example, the reflecting member 102 guides an infrared signal transmitted to the lighting fixture 1 (lamp unit 100) by the infrared remote controller 3 to the infrared communication module 101.

  As shown in FIG. 2, the reflecting member 102 has a reflecting surface 102 a that reflects an infrared signal toward the infrared communication module 101. The reflecting surface 102 a of the reflecting member 102 is shaped such that the infrared signal reflected by the reflecting surface 102 a is guided to the infrared receiving unit 101 a of the infrared communication module 101. Specifically, the reflecting surface 102a of the reflecting member 102 is configured to reflect an infrared signal that has reached the reflecting surface 102a as much as possible toward the through hole 101c1 of the case 101c of the infrared communication module 101.

  The reflection surface 102 a of the reflection member 102 may be configured to sandwich at least a region directly below the vertical direction of the infrared communication module 101. Thereby, even when the instrument main body 110 rotates, an infrared signal passing through the gap G between the frame body part 120 and the instrument main body 110 can be reflected by the reflecting member 102.

  In the present embodiment, the reflecting member 102 is a semi-cup-shaped reflecting plate, and the reflecting surface 102a is a curved surface. The reflective surface 102a of the reflective member 102 is not limited to a curved surface, and may be a flat surface. In this case, for example, the reflecting member 102 may be configured by a pair of reflecting plates that sandwich a region directly below the vertical direction of the infrared communication module 101.

  Further, since the frame body portion 120 exists vertically below the reflection member 102, there is almost no infrared signal traveling from the side of the reflection member 102 in the Y-axis direction toward the reflection member 102 (frame portion). 120), the reflecting member 102 has a shape in which a side portion in the Y-axis direction is opened, but is not limited thereto. For example, the reflecting member 102 may have a shape in which not only the side portion in the X-axis direction but also the side portion in the Y-axis direction is closed. Specifically, the reflecting member 102 may have a cup shape or a cylindrical shape that is open only in the vertical direction.

  The reflecting member 102 can be formed of, for example, a resin material or a metal material. Specifically, the reflecting member 102 may be a white resin molded product manufactured using a resin material such as PBT, or a metal film such as aluminum formed on the inner surface of the resin molded product. It may be a metal part formed of a metal material such as aluminum.

  As shown in FIGS. 2 and 4, the reflecting member 102 is provided in the lamp unit 100. Specifically, the reflecting member 102 is provided on the instrument main body 110. That is, the reflecting member 102 has a structure protruding from the instrument main body 110. In the present embodiment, the reflecting member 102 is attached to the side surface of the base 112 of the instrument main body 110. Specifically, the reflecting member 102 is attached to the side surface of the heat radiating fin 112 b of the base 112. Therefore, the reflecting member 102 moves in conjunction with the rotation of the instrument main body 110 (base 112).

  Further, the reflection member 102 is disposed between the infrared communication module 101 and the frame body portion 120. Specifically, the reflecting member 102 is located between the gap G between the instrument main body 110 and the frame body portion 120 and the infrared communication module 101. As a result, the infrared signal that has passed through the gap G and reached the reflecting member 102 is reflected by the reflecting member 102 and guided to the infrared communication module 101.

  Moreover, in this Embodiment, the reflection member 102 is arrange | positioned in the position where the edge part by the side of the ceiling 2 of the reflection member 102 contact | abuts the case 101c of the infrared communication module 101, and the reflection member 102, the infrared communication module 101, and There is no gap between them. Thereby, the infrared signal reflected by the reflecting member 102 can be prevented from leaking between the reflecting member 102 and the infrared communication module 101, and the infrared signal can be efficiently incident on the infrared communication module 101.

  In the present embodiment, the reflection member 102 is provided vertically below the infrared communication module 101, but is not limited thereto. For example, the reflecting member 102 may have a shape that encloses the entire infrared communication module 101 including the upper portion of the infrared communication module 101.

[Rotation of the instrument body]
Next, the rotation operation of the fixture main body 110 in the lighting fixture 1 according to Embodiment 1 will be described with reference to FIG. FIG. 6 is a view for explaining a rotation operation of the fixture body 110 in the lighting fixture 1 according to Embodiment 1. FIG.

  6 (a1) and (a2), the instrument body 110 is not rotated, and the optical axis JL of the instrument body 110 (light source unit 111) is parallel to the Z-axis direction (rotation angle = 0 °). (B1) and (b2) of FIG. 6 show a state when the instrument main body 110 is rotated to the maximum (rotation angle = 45 °).

  In the lamp unit 100 in the present embodiment, the instrument main body 110 is supported by the frame body portion 120 so as to be able to rotate (swing). Specifically, the instrument main body 110 is supported by the frame body portion 120 so as to be rotatable so that the posture with respect to the ceiling surface 2b changes. Thus, the irradiation direction of the light of the lamp unit 100 (light source unit 111) can be changed by changing the attitude of the fixture body 110 with respect to the ceiling surface 2b.

In the present embodiment, the instrument body 110 is configured to be rotatable so as to swing in the direction of the rotation direction R1 with the axis parallel to the Y axis as the rotation axis JR1 (swing axis). At this time, as shown in (b1) and (b2) of FIG. 6, the maximum movable angle α _{MAX at} which the instrument main body 110 can rotate (swing) is 45 ° as an example, but is not limited thereto. Absent.

In the lamp unit 100, the instrument body 110 can be held at a desired angle (swing angle) within the range of the maximum movable angle α _MAX , and light can be adjusted by adjusting the swing angle of the instrument body 110. The irradiation direction can be freely changed.

  Furthermore, the appliance main body 110 not only can change the posture with respect to the ceiling surface 2b, but also rotates in the rotation direction R2 with the direction perpendicular to the ceiling surface 2b (in the present embodiment, the Z-axis direction) as the rotation axis JR2. It is free to move. That is, the instrument main body 110 can horizontally rotate in a plane parallel to the ceiling surface 2b. Thereby, the instrument main body 110 can be horizontally rotated in the state inclined with respect to the ceiling surface 2b.

  In the present embodiment, the instrument main body 110 is configured to be rotatable in the direction of the rotation direction R2 with the central axis of the frame body portion 120 as the rotation axis JR2. As an example, the maximum movable angle of the instrument body 110 in the rotation direction R2 is about 355 °, but is not limited thereto.

  As described above, the instrument main body 110 is rotatable about two axes of the rotation axes JR1 and JR2, and by rotating the instrument main body 110, the light emitted from the instrument main body 110 (the light source unit 111) is rotated. The direction of travel can be changed.

  In this embodiment, since the infrared communication module 101 and the reflecting member 102 are attached to the instrument main body 110, the infrared communication module is interlocked with the rotation of the instrument main body 110 by rotating the instrument main body 110. The directions of 101 and the reflecting member 102 also change. Thereby, the infrared receivable range (detection area) of the infrared communication module 101 can be changed. In addition, since both the infrared communication module 101 and the reflection member 102 are attached to the instrument main body 110, even if the instrument main body 110 is rotated, the positional relationship between the infrared communication module 101 and the reflection member 102 does not change.

[Summary]
As described above, according to the lighting fixture 1 in the present embodiment, the fixture main body configured such that the infrared communication module 101 that receives an infrared signal for controlling the lighting fixture 1 can change the attitude with respect to the ceiling 2. 110 is attached to the lamp unit 100 and a reflecting member 102 that guides an infrared signal to the infrared communication module 101 is attached.

  With this configuration, an infrared signal that has not entered the infrared communication module 101 without the reflection member 102 can be reflected by the reflection member 102 and incident on the infrared communication module 101. That is, an invalid infrared signal that is not received by the infrared communication module 101 without the reflecting member 102 can be used as a valid infrared signal that can be received by the infrared communication module 101.

  This point will be described with reference to FIGS. 7 and 8 with reference to FIG. FIG. 7 is a perspective view of the lamp unit 100 when the instrument body 110 is not rotated (rotation angle = 0 °), and FIG. 8 is a diagram when the instrument body 110 is rotated to the maximum. It is a perspective view of the lamp unit 100 in a state (turning angle = 45 °).

  As shown in (a1) and (a2) of FIG. 6 and FIG. 7, in a state where the instrument main body 110 is not rotated, the infrared signal transmitted from the infrared remote controller 3 is the instrument main body 110 and the frame body part 120. Pass through the gap G between the two.

  At this time, when the user transmits the infrared signal L1 with the infrared remote controller 3 facing the instrument body 110, the infrared signal L1 travels in a direction parallel to the optical axis JL of the instrument body 110 (light source unit 111). Further, when the user transmits the infrared signal L2 with the infrared remote controller 3 directed slightly obliquely to the instrument body 110, the infrared signal L2 is slightly inclined with respect to the optical axis JL of the instrument body 110 (light source unit 111). Progress in the direction of the angle. In addition, when the user transmits the infrared signal L3 with the infrared remote controller 3 facing the instrument body 110 in a largely oblique direction, the infrared signal L3 is largely inclined with respect to the optical axis JL of the instrument body 110 (light source unit 111). Progress in the direction of the angle.

  In this case, in a state where the instrument main body 110 is not rotated, not only the infrared signal L1 directly enters the infrared communication module 101, but also the infrared signal L2 directly enters the infrared communication module 101. On the other hand, the infrared signal L3 is not directly incident on the infrared communication module 101, but is reflected by the reflecting member 102 and is incident on the infrared communication module 101.

  If there is no reflecting member 102, the infrared signal L3 passes through the gap G between the instrument main body 110 and the frame body portion 120, and then passes through the ceiling 2 without entering the infrared communication module 101. However, since the reflection member 102 exists, the reflection member 102 reflects the light and enters the infrared communication module 101.

  Further, as shown in FIGS. 6B1 and 6B2 and FIG. 8, the infrared signal transmitted from the infrared remote controller 3 is transmitted even when the instrument main body 110 is rotated to the maximum. And a gap G between the frame body portion 120 and the frame body portion 120.

  At this time, an infrared signal L1 traveling in a direction parallel to the optical axis JL of the instrument body 110 (light source unit 111) is directly incident on the infrared communication module 101. On the other hand, the infrared signal L2 traveling in the direction of an angle slightly inclined with respect to the optical axis JL of the instrument body 110 (light source unit 111) is not directly incident on the infrared communication module 101 but reflected by the reflecting member 102. Incident on the infrared communication module 101.

  If there is no reflecting member 102, the infrared signal L2 passes through the gap G between the instrument main body 110 and the frame body portion 120, and then passes to the ceiling 2 side without entering the infrared communication module 101. However, since the reflection member 102 exists, the reflection member 102 reflects the light and enters the infrared communication module 101.

  Thus, according to the lighting fixture 1 in the present embodiment, the infrared communication module 101 receives an infrared signal that is not received by the infrared communication module 101 without the reflection member 102, by providing the reflection member 102. be able to. Thereby, the communication performance of the infrared communication by the infrared communication module 101 can be improved.

  Therefore, even if the fixture main body 110 having the light source unit 111 is configured to be able to change the posture with respect to the ceiling 2 like the lighting fixture 1 in the present embodiment, stable infrared communication can be performed.

  Moreover, in this Embodiment, the reflection member 102 is attached to the instrument main body 110 to which the infrared communication module 101 is being fixed.

  Thereby, even if the attitude | position of the instrument main body 110 is changed and the position of the infrared communication module 101 is also changed, the position of the reflective member 102 is also changed with the infrared communication module 101. That is, the relative positional relationship between the infrared communication module 101 and the reflecting member 102 is constant. Therefore, more stable infrared communication can be performed.

  In the present embodiment, the reflecting member 102 is disposed between the infrared communication module 101 and the frame body portion 120.

  Thereby, the infrared signal that has reached the reflecting member 102 can be efficiently guided to the infrared communication module 101. Therefore, more stable infrared communication can be performed.

  In the present embodiment, the reflecting member 102 is located between the gap G between the instrument main body 110 and the frame body portion 120 and the infrared communication module 101.

  Thereby, since the infrared signal that has passed through the gap G can be reflected by the reflecting member 102 and efficiently guided to the infrared communication module 101, stable infrared communication can be performed for the infrared signal that has passed through the gap G. it can.

(Embodiment 2)
Next, the lighting fixture 1X which concerns on Embodiment 2 is demonstrated using FIG. FIG. 9 is a perspective view of the lamp unit 100X in the lighting fixture 1X according to the second embodiment.

  In the lighting fixture 1 in the first embodiment, the reflecting member 102 is used as an optical member that guides an infrared signal to the infrared communication module 101. However, in the lighting fixture 1X in the present embodiment, the infrared signal is guided to the infrared communication module 101. A diffusion member 102X is used as the optical member. Other configurations are the same as those of the lighting fixture 1 according to the first embodiment.

  The diffusing member 102X used in the present embodiment diffuses and transmits an infrared signal toward the infrared communication module 101. That is, the diffusing member 102X has translucency and light diffusibility (light scattering property) with respect to infrared rays, and scatters and transmits the infrared signal incident on the diffusing member 102X, so that the diffusing member 102X The emitted infrared signal is incident on the infrared communication module 101.

  The diffusing member 102X can be made of a translucent material such as a translucent resin material such as polycarbonate or acrylic, or a glass material. For example, a light diffusing material having light reflectivity with respect to infrared rays is dispersed in a translucent resin material, or a light diffusing material having light reflectivity with respect to infrared rays on the surface (inner surface or outer surface) of the diffusion member 102X. For example, a light diffusing film containing can be formed to make the diffusing member 102X have translucency and light diffusibility. Note that, without using the light diffusing material, the diffusing member 102X may have light diffusibility depending on the shape of the diffusing member 102X or the like.

  As mentioned above, in the lighting fixture 1X in this Embodiment, the infrared communication module 101 which receives the infrared signal for controlling the lighting fixture 1X is attached to the fixture main body 110 comprised so that the attitude | position with respect to the ceiling 2 can be changed. The diffusing member 102X for guiding the infrared signal to the infrared communication module 101 is attached to the lamp unit 100.

  With this configuration, similarly to the lighting fixture 1 in the first embodiment, an infrared signal that is not incident on the infrared communication module 101 without the diffusing member 102X is diffused by the diffusing member 102X and incident on the infrared communication module 101. be able to. That is, an invalid infrared signal that is not received by the infrared communication module 101 without the diffusing member 102X can be used as a valid infrared signal that can be received by the infrared communication module 101.

  Therefore, even if the instrument main body 110 having the light source unit 111 is configured to change the posture with respect to the ceiling 2, stable infrared communication can be performed.

(Embodiment 3)
Next, the lighting fixture 1Y which concerns on Embodiment 3 is demonstrated using FIG. FIG. 10 is a perspective view of the lamp unit 100Y in the lighting fixture 1Y according to the third embodiment.

  In the lighting fixture 1 in the first embodiment, the reflecting member 102 is used as an optical member that guides an infrared signal to the infrared communication module 101. However, in the lighting fixture 1X in the present embodiment, the infrared signal is guided to the infrared communication module 101. The lens member 102Y is used as the optical member. Other configurations are the same as those of the lighting fixture 1 according to the first embodiment.

  The lens member 102 </ b> Y used in the present embodiment refracts and transmits an infrared signal toward the infrared communication module 101. The lens member 102Y is, for example, a convex lens that collects light, but is not limited thereto. The lens member 102Y can be made of a light-transmitting material such as a light-transmitting resin material such as polycarbonate or acrylic, or a glass material.

  As mentioned above, in the lighting fixture 1Y in this Embodiment, the infrared communication module 101 which receives the infrared signal for controlling the lighting fixture 1Y is attached to the fixture main body 110 comprised so that the attitude | position with respect to the ceiling 2 could be changed. A lens member 102Y for guiding the infrared signal to the infrared communication module 101 is attached to the lamp unit 100.

  With this configuration, similarly to the lighting fixture 1 in the first embodiment, an infrared signal that is not incident on the infrared communication module 101 without the lens member 102Y is refracted by the lens member 102Y and incident on the infrared communication module 101. be able to. That is, an invalid infrared signal that is not received by the infrared communication module 101 without the lens member 102Y can be used as a valid infrared signal that can be received by the infrared communication module 101.

  Therefore, even if the instrument main body 110 having the light source unit 111 is configured to change the posture with respect to the ceiling 2, stable infrared communication can be performed.

(Modification)
As mentioned above, although the lighting fixture which concerns on this invention was demonstrated based on embodiment, this invention is not limited to the said embodiment.

  For example, in each of the above-described embodiments, the optical members (reflecting member 102, diffusing member 102X, lens member 102Y) for guiding the infrared signal to the infrared communication module 101 are attached to the instrument main body 110. It may be attached to the frame body part 120.

  In each of the above embodiments, the optical member that guides the infrared signal to the infrared communication module 101 has any one property of light reflectivity, light diffusibility (light scattering), and refraction with respect to infrared light. Although it was a thing, it is not restricted to this. For example, as an optical member that guides an outside line signal to the infrared communication module 101, an optical member having a plurality of properties among light reflectivity, light diffusibility, and refraction may be used.

  In each of the above embodiments, the optical member (reflecting member 102, diffusing member 102X, lens member 102Y) and infrared communication module 101 are separate parts, but the optical member (reflecting member 102, diffusing member 102X, lens) The member 102Y) and the infrared communication module 101 may be a single component. In this case, a part of the infrared communication module 101 may have a shape corresponding to the optical component. For example, a part of the case 101c of the infrared communication module 101 may have a shape corresponding to an optical member. Thus, by adding the optical member (the reflecting member 102, the diffusing member 102X, the lens member 102Y) and the infrared communication module 101 as one component, it is possible to eliminate the addition of optical components, thereby reducing the cost. Can be planned.

  Moreover, in each said embodiment, the through-hole through which an infrared signal passes may be provided in at least one of the instrument main body 110 and the frame part 120. FIG. For example, when the instrument main body 110 or the frame body part 120 exists in the lower region of the infrared communication module 101, a through hole for allowing the instrument main body 110 or the frame body part 120 to pass an infrared signal may be provided. In this case, the through hole may be provided at a position overlapping the through hole 101c1 provided in the case 101c of the infrared communication module 101. Thereby, the infrared signal transmitted from the infrared remote controller 3 toward the lamp unit 100 is received by the infrared receiver 101a of the infrared communication module 101 through the through hole provided in the instrument main body 110 and / or the frame body 120. Can be made.

  Moreover, in each said embodiment, although the infrared communication module 101 was provided in the lamp unit 100, it is not restricted to this. A plurality of infrared communication modules 101 may be provided in the lamp unit 100. In this case, the optical member that guides the infrared signal to the infrared communication module 101 may be provided according to the number of the infrared communication modules 101, or the infrared signal may be incident on the plurality of infrared communication modules 101 with one optical member. It may be configured.

  In each of the above embodiments, an infrared cut filter for cutting an infrared component contained in light emitted from the light source unit 111 may be disposed around the light source unit 111 or the like. For example, when the infrared communication module 101 is provided in the frame body portion 120, an infrared cut filter can be attached to the lens 114, or a member having the infrared cut filter can be attached to the front stage or the rear stage of the lens 114. . Further, instead of using the infrared cut filter, the lens 114 may include an infrared absorbing material for cutting the infrared component. As described above, since the infrared component included in the light emitted from the light source unit 111 is cut, it is possible to suppress unnecessary infrared rays from reaching the infrared communication module 101, thereby suppressing erroneous detection of the infrared communication module 101. Can do.

  Further, in each of the above-described embodiments, the instrument main body 110 is configured to be rotatable about two axes using the rotating plate 122. You may comprise so that rotation around an axis is possible.

  Moreover, in each said embodiment, although the light source part 111 was comprised so that white light might be emitted by blue LED and yellow fluorescent substance, it is not restricted to this. For example, a phosphor-containing resin containing a red phosphor and a green phosphor may be used so that white light is emitted by combining the phosphor-containing resin and a blue LED.

  Moreover, in said each embodiment, although blue LED was used as LED, it is not restricted to this. For example, an LED that emits light of a color other than blue or an LED that emits ultraviolet light may be used. In this case, the phosphor may be appropriately selected according to the wavelength of light emitted from the LED.

  In each of the above embodiments, the light source unit 111 has a COB structure in which an LED chip is directly mounted on a mounting substrate. However, the present invention is not limited to this. For example, an LED module having an SMD (Surface Mount Device) structure may be used in place of the LED module having a COB structure. An LED module having an SMD structure is a package type LED element in which an LED chip (light emitting element) is mounted in a recess of a resin package (container) and a sealing member (phosphor-containing resin) is enclosed in the recess. One or a plurality of (SMD type LED elements) are mounted on a mounting substrate.

  Moreover, in each said embodiment, although LED was illustrated as a light source of the light source part 111, it is not restricted to this. For example, as a light source of the light source unit 111, a semiconductor light emitting element such as a semiconductor laser, or a solid light emitting element other than an LED such as an organic EL (Electro Luminescence) or an inorganic EL, a fluorescent lamp or a high-intensity lamp may be used. An existing lamp such as the above may be used.

  In addition, it is realized by arbitrarily combining the components and functions in the above-described embodiments without departing from the scope of the present invention, and forms obtained by making various modifications conceivable by those skilled in the art to the above-described embodiments. Forms to be made are also included in the present invention.

DESCRIPTION OF SYMBOLS 1, 1X, 1Y Lighting fixture 2 Ceiling 2a Opening part 100, 100X, 100Y Lamp unit 101 Infrared communication module 102 Reflective member (optical member)
102X Diffusion member (optical member)
102Y Lens member (optical member)
DESCRIPTION OF SYMBOLS 110 Instrument main body 111 Light source part 112 Base 120 Frame part

Claims (12)

A ceiling-mounted lighting fixture,
A lamp unit embedded in the opening of the ceiling;
An infrared communication module for receiving an infrared signal for controlling the lighting apparatus;
An optical member for guiding the infrared signal to the infrared communication module;
The lamp unit has an instrument body having a light source part,
The appliance main body is configured to be able to change the posture with respect to the ceiling,
The infrared communication module is attached to the instrument body,
The optical member is attached to the lamp unit.
lighting equipment. The optical member is a reflecting member having a reflecting surface that reflects the infrared signal toward the infrared communication module.
The lighting fixture according to claim 1. The optical member is a diffusion member that diffuses and transmits the infrared signal toward the infrared communication module.
The lighting fixture according to claim 1. The optical member is a lens member that refracts and transmits the infrared signal toward the infrared communication module.
The lighting fixture according to claim 1. The optical member is attached to the instrument body.
The lighting fixture of any one of Claims 1-4. The instrument body has a base on which the light source unit is disposed,
The infrared communication module and the optical member are attached to a side surface of the base,
The lighting fixture of any one of Claims 1-5. The lamp unit further includes a frame body portion that rotatably holds the fixture body and is attached to the opening.
The lighting fixture of any one of Claims 1-6. The optical member is disposed between the infrared communication module and the frame body part,
The lighting fixture according to claim 7. The frame body part encloses a part of the instrument body with a gap with the instrument body,
The infrared communication module is attached to the instrument body so as to receive an infrared signal through the gap.
The lighting fixture according to claim 7 or 8. The optical member is located between the gap and the infrared communication module;
The lighting fixture according to claim 9. A through-hole through which the infrared signal passes is provided in at least one of the instrument body and the frame body part,
The lighting fixture of any one of Claims 1-10. The infrared communication module receives an infrared signal for controlling an illumination mode of the illumination light as an infrared signal for controlling the lighting fixture.
The lighting fixture of any one of Claims 1-11.

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