TWI719279B - Lighting equipment - Google Patents

Abstract

The luminaire (100) includes a luminaire body (106), a substrate (11) installed on the luminaire body (106), a plurality of light-emitting elements (20) and a light-receiving part arranged on the main surface (11a) of the substrate (11) (30), the light-receiving part (30) is arranged on the main surface (11a) of the substrate (11), including the light-emitting part area (13b) of the area where a plurality of light-emitting elements (20) are arranged, and can receive and control the plural number The light of the light-emitting state of the light-emitting element (20).

Description

Lighting fixtures

The present invention relates to a lighting fixture including a plurality of light-emitting elements arranged on a substrate.

In the past, there has been known, for example, a ceiling lamp, which is a lighting fixture arranged on a ceiling. For example, the conventional ceiling lamp described in Patent Document 1 includes an appliance main body, an appliance installation part for installing the appliance main body on a construction material, a light source substrate and a circuit board supported on the appliance main body. A plurality of light emitting diodes (LED: Light Emitting Diode) are mounted on the light source substrate. The circuit board is mounted with a lighting circuit for lighting each LED of plural LEDs.

In this ceiling lamp, an infrared remote control signal receiver is arranged in the area inside the light source substrate arranged in a ring shape. The infrared remote control signal receiving unit receives an infrared remote control signal (control signal) through the opening of the lighting device cover arranged on the front side (the side where the illuminating light is emitted). [Prior Technical Document] [Patent Document]

[Patent Document 1] Japanese Patent Publication No. 2012-146666

[Problem to be solved by the invention] In lighting fixtures that have a light-receiving part that receives light (light signal) for controlling actions, the light-receiving part is generally placed near the power circuit (also called the lighting circuit or the driving circuit, etc.) or the power circuit Part, and a circuit cover made of a material (metal, etc.) with high light-shielding properties is arranged on the front side. At this time, generally, like the above-mentioned conventional ceiling lamp, an opening is provided in the cover, and the light receiving part can receive light signals.

However, even when an opening is formed on the front side of the light-receiving portion, there is still a possibility that the circuit cover located in front of the light-receiving portion prevents the light signal from entering the light-receiving portion. As a result, for example, the range in which the remote controller can control the lighting appliance (the range where the remote controller can control the lighting appliance based on the position of the lighting appliance) is small.

The present invention takes the above-mentioned conventional problems into consideration, and its object is to provide a lighting fixture that includes a light-receiving portion that receives light for controlling the light-emitting state of a plurality of light-emitting elements, and that easily allows the light to reach the light-receiving portion. [Means to Solve the Problem]

An aspect of the luminaire of the present invention includes an appliance body, a substrate, a plurality of light-emitting elements, and a light-receiving part. The substrate is mounted on the appliance body; the plurality of light-emitting elements are arranged on the main surface of the substrate; the light-receiving part The light-emitting portion area including the area where the plurality of light-emitting elements are arranged on the main surface of the substrate, and can receive light for controlling the light-emitting state of the plurality of light-emitting elements. [Effects of Invention]

According to the present invention, it is possible to provide a lighting fixture that includes a light-receiving portion that receives light for controlling the light-emitting state of a plurality of light-emitting elements, and can easily make the light reach the light-receiving portion.

[Modes for Carrying Out the Invention] Hereinafter, embodiments and their modifications will be described with reference to the drawings. In addition, the embodiment and the modified example described below each show a specific example of the present invention. Therefore, the numerical values, shapes, materials, constituent elements, arrangement positions, and connection forms of the constituent elements shown in the following embodiments and modified examples are just examples, and do not limit the gist of the present invention. Therefore, in the following embodiments and modified examples, the constituent requirements that are not described in the independent claims showing the highest concept of the present invention will be described in terms of arbitrary constituent requirements.

In addition, each figure is a schematic diagram, and the figure may not be shown strictly. In addition, in each figure, the same reference numerals are attached to substantially the same structures, and repeated descriptions may be omitted or simplified.

(Embodiment) Hereinafter, the lighting fixture 100 of the embodiment will be described.

[Entire structure of lighting fixture] First, referring to FIGS. 1 and 2, the entire structure of the lighting fixture 100 of the embodiment will be described. Fig. 1 is an exploded perspective view of a lighting fixture 100 according to the embodiment. FIG. 2 is a plan view showing the outline of the structure of the light emitting module 10 of the embodiment.

As shown in FIG. 1, the lighting fixture 100 of this embodiment is installed in the ceiling lamp of the ceiling 4, for example. In addition, the upper side of FIG. 1 (the positive direction of the Z-axis) corresponds to the direction of the floor surface (not shown in the figure) facing the ceiling 4. That is, the lighting fixture 100 of FIG. 1 is displayed in a posture that is opposite to that of normal use.

The lighting fixture 100 of this embodiment includes a fixture body 106 and a light-emitting module 10 installed on the fixture body 106. The light-emitting module 10 has a substrate 11 and a plurality of light-emitting elements 20 arranged on the main surface 11 a of the substrate 11. In this embodiment, a plurality of circuit components 80 are further arranged on the main surface 11 a of the substrate 11, and the power circuit 90 is constituted by the plurality of circuit components 80. In this embodiment, the lighting fixture 100 further includes a circuit cover 150, a light source cover 160, a lighting cover 140, and a fixture installation portion 8.

[Apparatus main body] As shown in FIG. 1, the apparatus main body 106 is formed in a disc shape, and is a member made of sheet metal such as aluminum plate or steel plate. The surface on the side where the light-emitting module 10 and the like are arranged on the appliance body 106 is coated with a white paint with high light reflectivity or vapor-deposited with a reflective metal material, for example.

Moreover, as shown in FIG. 1, a circular opening is formed in the center of the appliance body 106, and an approximately cylindrical support 126 extending from the periphery of the opening to the side of the light-emitting module 10 is formed. The supporting portion 126 is a member formed of, for example, resin, and has a structure that can be fitted with the appliance mounting portion 8.

In the appliance body 106, a step portion 136 is formed around the support portion 126, and an installation face portion 132 is formed on the outer side thereof. In addition, a peripheral edge portion 131 is formed around the installation surface portion 132. When the light-emitting module 10 is installed on the main body 106 of the apparatus, the back surface of the substrate 11 contacts the installation surface 132, and the space in the step portion 136 accommodates the circuit components 80 arranged on the back surface of the substrate 11 and the like.

[Apparatus Installation Part] The appliance installation part 8 is inserted into the support part 126 of the appliance body 106 to be installed in the support part 126. In addition, the appliance installation portion 8 is detachably installed on the ceiling-side installation member 9 provided on the ceiling 4. In this way, by detachably installing the appliance installation portion 8 on the ceiling-side installation member 9, the appliance main body 106 is detachably installed on the ceiling 4. In addition, a buffer member (not shown in the figure) is arranged between the appliance body 106 and the ceiling 4 to suppress the shaking of the appliance body 106.

[Light-emitting Module] As shown in FIGS. 1 and 2, the light-emitting module 10 has a substrate 11, a plurality of light-emitting elements 20 arranged on the substrate 11, and a plurality of circuit components 80 arranged on the substrate 11.

The outer shape of the substrate 11 in a plan view (when the substrate 11 is viewed from the thickness direction of the substrate 11) is a rectangle with cut corners, and a circular opening 12 is formed in the center. That is, the substrate 11 has a ring shape. The substrate 11 is a so-called printed substrate on which patterns of metal wiring are formed. In this embodiment, a resin substrate is used as the substrate 11. Conductor patterns (metal wiring) are provided on both sides of the resin substrate. That is, the substrate 11 is a kind of substrate called a double-sided printed board or a double-sided mounting substrate, for example. Such a substrate can be exemplified by a glass composite substrate and a glass epoxy substrate.

Each of the plurality of light-emitting elements 20 in this embodiment is, for example, an LED element packaged in an LED chip. That is, the mounting structure of the light-emitting module 10 is an SMD (Surface Mount Device) structure in which the LED element packaged by the LED chip is mounted on the substrate 11.

Specifically, as shown in FIG. 2, a plurality of light-emitting elements 20 are arranged on the outer periphery of the circuit area 13a of the main surface 11a of the substrate 11, that is, the light-emitting portion area 13b, and the plurality of light-emitting elements 20 are provided with solder and The conductor pattern (metal wiring) of the main surface 11a is connected. That is, a plurality of light-emitting elements 20 are mounted on the light-emitting area 13b of the main surface 11a of the substrate 11 by the surface mounting technology. In addition, in this embodiment, the light-emitting area 13b is the entire area of the outer periphery of the circuit area 13a on the main surface 11a of the substrate 11.

As shown in FIG. 2, the plurality of light-emitting elements 20 are arranged in a ring-shaped manner to surround the circuit area 13 a of the substrate 11. In addition, the electrical connection of the plurality of light-emitting elements 20 is not particularly limited. For example, it is also possible to form a plurality of groups of n (n is an integer greater than or equal to 2) light-emitting elements 20 in series (light-emitting element groups), and connect the plurality of light-emitting element groups in parallel. Moreover, all the light-emitting elements 20 arranged on the substrate 11 may also be connected in series. Furthermore, in this embodiment, a plurality of light-emitting elements 20 constitute the light-emitting portion 25 of the light-emitting module 10.

The area of the central portion (peripheral portion of the opening 12) of the substrate 11 in a plan view, that is, the area of the circuit area 13a, is an area where one or more circuit components 80 are arranged. The one or more circuit components 80 are components that constitute at least a part of the circuit used for the operation of the plurality of light-emitting elements 20 (turning on, turning off, changing the dimming rate, etc.). In this embodiment, a plurality of circuit components 80 are arranged in the circuit area 13a, and the plurality of circuit components 80 constitute a power supply circuit 90 that supplies light-emitting power to the plurality of light-emitting elements 20.

The power circuit 90 converts AC power supplied via a cable (not shown) extending from the appliance body 106 into DC power suitable for light emission of the plurality of light-emitting elements 20, and supplies it to the plurality of light-emitting elements 20. Thereby, the plurality of light-emitting elements 20 can emit light.

The plural circuit components 80 constituting the power supply circuit 90 are capacitive elements such as electrolytic capacitors or ceramic capacitors, resistive elements, coil elements, choke coils (chance transformers), noise filters, and diodes or integrated circuit elements, respectively. And other semiconductor components.

Here, in this embodiment, the light-receiving portion 30 is further arranged in the light-emitting portion region 13b of the main surface 11a of the substrate 11. Specifically, as shown in FIG. 2, the light-receiving part 30 is arranged at a position including the arrangement range (light-emitting element range 14) of the plurality of light-emitting elements 20 in the light-emitting part region 13 b. In this embodiment, the plurality of light-emitting elements 20 are arranged in a two-layer ring, and the light receiving portion 30 is located between the two ring-shaped arrays.

The light receiving unit 30 is, for example, an electronic component that receives infrared light transmitted from a remote controller for controlling operations such as turning on and off the lighting fixture 100. The light receiving unit 30 has a photoelectric conversion element such as a light emitting diode, and converts the received infrared light into an electric signal (control signal), and sends it to the power circuit 90. The power supply circuit 90 performs start, stop, adjustment of the supply amount, etc. of the power supply to the light emitting unit 25 based on the received control signal. The details of the structure of the light receiving unit 30 and its surroundings will be described later using FIGS. 3 and 4.

In addition, the boundary between the circuit area 13a and the light-emitting area 13b shown as a chain line in FIG. 2 does not need to be visually identifiable on the substrate 11, and the shape does not need to follow the outer shape of the substrate 11. For example, it is also possible to define the boundary between the circuit area 13a and the light-emitting area 13b by a virtual line external to the power supply circuit 90 composed of a plurality of circuit components 80 when viewed from above.

[Circuit Cover] As shown in FIG. 1, the circuit cover 150 is a member arranged to cover a plurality of circuit components 80 arranged on the substrate 11. That is, the circuit cover 150 is a member that covers the power supply circuit 90 disposed in the circuit area 13a of the substrate 11. The circuit cover 150 is formed of metal such as iron or aluminum in this embodiment, and is non-flammable.

In addition, the portion forming the outer side surface of the circuit cover 150 has a function of a reflective surface that reflects the light emitted from the light emitting portion 25.

In addition, an insulating sheet made of resin, for example, may also be arranged on the inner surface of the circuit cover 150. Thereby, the inner surface of the circuit cover 150 can be made close to the circuit components 80 inside the circuit cover 150, and as a result, the height (width in the Z-axis direction) of the circuit cover 150 can be reduced. Thereby, it is possible to reduce the possibility that, for example, the circuit cover 150 blocks the illuminating light from the light-emitting portion 25 or the infrared light toward the light-receiving portion 30. In addition, the circuit cover 150 may not be formed of metal, but may be formed of, for example, a flame-retardant resin. Thereby, for example, the circuit cover 150 can be reduced in size or weight.

In this embodiment, the circuit cover 150 is installed on the appliance body 106 together with the light source cover 160 and the light-emitting module 10 using, for example, a plurality of screws not shown in the figure.

[Light source cover] As shown in FIG. 1, the light source cover 160 is a member that covers the plurality of light emitting elements 20 of the light emitting module 10, and is formed of light-transmitting (for example, transparent) resin or the like. The light source cover 160 is formed in a ring shape and is fixed to the main surface 11a of the light emitting module 10 in a state of surrounding the circuit cover 150 and covering the plurality of light emitting elements 20 arranged in a ring shape.

In addition, the light source cover 160 has a plurality of lens parts 161. The plural lens portions 161 are provided in one-to-one correspondence with the plural light-emitting elements 20. The lens portion 161 can expand the light distribution angle of the light from the corresponding light emitting element 20, for example. That is, the lens portion 161 has a function of diverging light. In this way, by arranging the lens portion 161 corresponding to each light-emitting element 20, it is possible to precisely control the diffusion of light from each of the plurality of light-emitting elements 20, for example.

In addition, the light source cover 160 may not have the lens part 161. The light source cover 160 may also be formed into a shape and size that covers all of the light-emitting elements 20, for example.

[Illumination Cover] The illumination cover 140 is a member covering the side of the appliance body 106 on which the light emitting module 10 and the like are installed, and is formed of a translucent resin. The lighting cover 140 is formed of, for example, milky white resin, and can diffuse the light from each light-emitting element 20 and emit it to the outside. In addition, the lighting cover 140 is detachably attached to the appliance body 106, for example.

[Structure around the light-receiving part] Next, the structure of the light-receiving part 30 and its surroundings included in the light-emitting module 10 of the present embodiment will be described with reference to FIGS. 3 and 4.

3 is a perspective view showing the structural relationship between the light emitting module 10 and the light source cover 160 of the embodiment. 4 is a cross-sectional view showing the outline of the structure of the lighting fixture 100 of the embodiment. In addition, FIG. 4 shows a part of the cross-section of the luminaire 100 in the YZ plane passing through the IV-IV line shown in FIG. 3.

In the light-emitting module 10 of this embodiment, as described above, a plurality of light-emitting elements 20 are mounted on the outer peripheral side of the main surface 11a of the substrate 11, that is, the light-emitting area 13b, and are further arranged in the light-emitting area 13b. There is a light receiving part 30.

In addition, the light emitting section 25 composed of a plurality of light emitting elements 20 is covered with a light source cover 160, and the lens section 161 of the light source cover 160 is arranged on the front surface (positive side of the Z axis) of each of the plurality of light emitting elements 20.

The light source cover 160 further has a receiving portion 163 forming a space for receiving the light receiving portion 30 at a position corresponding to the light receiving portion 30. As shown in FIG. 4, the receiving portion 163 has a shape that covers the light receiving portion 30, and infrared light transmitted from the remote controller 200 passes through the receiving portion 163 to reach the light receiving portion 30.

In addition, in the accommodating portion 163, a portion corresponding to the tip portion of the light receiving portion 30 that receives light is formed to be thinner than the surrounding portion. Thereby, the loss of the infrared light received by the light receiving part 30 (loss caused by the receiving part 163) can be suppressed. In addition, since the height of the receiving portion 163 in the emission direction of the illuminating light (positive direction of the Z axis) can be made low, the influence of the receiving portion 163 on the light emitted from one or more lens portions 161 around the receiving portion 163 can be suppressed .

In addition, in the present embodiment, the light receiving unit 30 is mounted on the main surface 11a of the substrate 11 by a surface mounting technique. Therefore, as shown in FIG. 4, the substrate 11 is installed on the installation surface 132 in a state where the area on the back side of the light receiving portion 30 of the back surface 11 b of the substrate 11 is also in contact with the installation surface 132 of the appliance body 106.

As described above, the lighting fixture 100 of this embodiment includes a fixture main body 106, a substrate 11 mounted on the fixture main body 106, and a plurality of light-emitting elements 20 arranged on the main surface 11a of the substrate 11. The luminaire 100 further includes a light-receiving portion 30 disposed on the main surface 11a of the substrate 11 in the light-emitting portion area 13b including the area where the plurality of light-emitting elements 20 are arranged, and can receive the light-emitting elements 20 for controlling the plurality of light-emitting elements 20 The light of the luminous state.

According to this structure, since the light receiving unit 30 is arranged in the light emitting area 13b where the light emitting unit 25 (a plurality of light emitting elements 20) that emits illumination light is located, a member with low light transmittance is not arranged in the front (positive direction of the Z axis). Specifically, as shown in FIG. 4, the light receiving unit 30 is arranged outside the circuit cover 150. Therefore, the possibility that the infrared light transmitted from the remote controller 200 is shielded by the circuit cover 150 can be reduced. In this way, the luminaire 100 adopts a structure in which light can easily reach the light receiving unit 30.

In addition, in this embodiment, the light-receiving part 30 is arranged at a position including the arrangement range (light-emitting element range 14) of the plurality of light-emitting elements 20 in the light-emitting part region 13b.

With this structure, for example, the light receiving unit 30 can more easily receive the infrared light from the remote controller 200. Specifically, if the light receiving unit 30 is arranged at a position closer to the power supply circuit 90 than the light emitting element range 14, the possibility that the infrared light from the remote controller 200 is blocked by the circuit cover 150 increases. In addition, the light-emitting element range 14 is a range that can emit illuminating light from a plurality of light-emitting elements 20, and is designed such that when a plurality of light-emitting elements 20 are arranged in the light-emitting element range 14, the illumination light reaches a wide range. Therefore, it is advantageous to arrange the light receiving unit 30 in the light emitting element range 14 from the viewpoint that light can enter the light receiving unit 30 from a wide range.

In addition, the lighting fixture 100 of the present embodiment includes a light source cover 160 that is translucent and has a part covering a plurality of light emitting elements 20 and a part covering the light receiving part 30 integrally.

According to this structure, the light-receiving part 30 can be protected by the light source cover 160 for the purpose of, for example, diffusion of light emitted from the plurality of light-emitting elements 20 or protection of the plurality of light-emitting elements 20. That is, without using a separate member for protecting the light receiving unit 30, a part of the light source cover 160 can be used to protect the light receiving unit 30, thereby, for example, a simple structure can suppress the deterioration of the infrared light receiving function of the light receiving unit 30 .

In addition, the lighting fixture 100 of this embodiment includes a power supply circuit 90 that operates in accordance with a signal output from the light receiving unit 30 and supplies light-emitting power to the plurality of light-emitting elements 20. The power supply circuit 90 is arranged on the main surface 11a of the substrate 11, which is a region different from the light-emitting portion region 13b, that is, the circuit region 13a.

In this way, since the power supply circuit 90 is arranged in an area separate from the light-emitting area 13b, even when the circuit components 80 with a relatively high height are arranged on the main surface 11a of the substrate 11, the power supply circuit 90 (or the circuit cover 150) can be reduced. ) The possibility of shielding the illuminating light from the plurality of light-emitting elements 20 and the infrared light toward the light receiving unit 30. In addition, since the power supply circuit 90 and the light emitting unit 25 are arranged on one substrate 11, the lighting fixture 100 is easier to assemble than when the light source substrate and the circuit substrate are separate components, for example.

In addition, in this embodiment, on the main surface 11a of the substrate 11, the light emitting region 13b is arranged so as to surround the circuit region 13a.

In this way, by arranging the light emitting region 13b on the outer peripheral side of the substrate 11, the heat generated in, for example, the plurality of light emitting elements 20 is easily radiated to the outside of the lighting fixture 100. In more detail, in this embodiment, a peripheral edge portion 131 is formed around the installation surface portion 132. Therefore, at least a part of the heat transferred from the substrate 11 to the installation face 132 is transferred to the peripheral edge portion 131 of the outer periphery thereof, and is released to the outside of the appliance body 106. This point is advantageous in suppressing the deterioration of the plurality of light-emitting elements 20 and light-receiving portions 30.

In addition, the lighting fixture 100 of this embodiment includes a circuit cover 150 that covers the power supply circuit 90 and has light-shielding properties.

Here, in this embodiment, as described above, since the light-receiving portion 30 is arranged in the light-emitting area 13b of the substrate 11, the circuit cover 150 does not need to be used for receiving light when the light-receiving portion 30 is arranged inside the circuit cover 150. The opening portion 30 receives infrared light transmitted from the outside. Therefore, for example, the entire area of the outer surface of the circuit cover 150 can be used as a reflection surface that reflects the light emitted from the plurality of light-emitting elements 20 (light-emitting parts 25). At this time, in terms of appearance, for example, the possibility that the circuit cover 150 located at the center of the lighting fixture 100 forms a dark part (the part with no or very little reflection of light) can be reduced.

In addition, the arrangement position of the light receiving unit 30 included in the luminaire 100 is not limited to the arrangement position described in the above-mentioned embodiment. Therefore, in the following, a modification example of the light-emitting module 10 having the light-receiving portion 30 will be described centering on the difference from the above-mentioned embodiment.

(Modification 1) FIG. 5 is a plan view showing the outline of the configuration of a light-emitting module 10a according to Modification 1 of the embodiment. In addition, in FIG. 5, the installation surface 132 of the lighting fixture 100 on which the light-emitting module 10a (substrate 11) is installed is represented by a circle with a dotted line.

In the light-emitting module 10a shown in FIG. 5, the substrate 11 has a protrusion 15 protruding from an edge in a plan view and forming a part of the light-emitting area 13b, and the light-receiving portion 30 is disposed on the protrusion 15.

According to this structure, for example, the metal wiring connected to the light emitting element 20 and the metal wiring connected to the light receiving portion 30 can be arranged with an enlarged interval. Thereby, for example, when the difference between the voltage applied to the light-emitting element 20 and the voltage applied to the light-receiving portion 30 is large, electrical safety can be improved.

In addition, the protruding portion 15 is provided in a protruding shape from the linear end edge of the substrate 11, and therefore, is arranged within the range of the circular mounting surface portion 132 when viewed from above. That is, even when the protrusion 15 is provided as a part of the light-emitting portion region 13b of the substrate 11, the entire area on the back side of the light-emitting portion region 13b of the back surface 11b of the substrate 11 can be brought into surface contact with the mounting surface 132. Therefore, the heat generated in the light emitting region 13b including the protrusion 15 can be efficiently transferred to the appliance body 106.

(Modification 2) FIG. 6 is a plan view showing the outline of the structure of a light-emitting module 10b according to a modification 2 of the embodiment. In the light-emitting module 10b shown in FIG. 6, a slit 16 is formed in the light-emitting area 13b of the substrate 11, and the light-receiving part 30 is arranged on the side of the slit 16.

According to this structure, for example, the creeping distance between the metal wiring connected to the light emitting element 20 and the metal wiring connected to the light receiving portion 30 can be increased. Thereby, for example, when the difference between the voltage applied to the light-emitting element 20 and the voltage applied to the light-receiving portion 30 is large, electrical safety can be improved. In addition, in this modification example, since the light receiving unit 30 is arranged between the two slits 16, the electrical safety can be more assured.

In addition, the width of the slit 16 (the width in the X-axis direction in FIG. 6) may be appropriately determined, for example, so as not to generate discharge between the two metal wirings arranged through the slit 16.

In addition, in FIG. 6, the slit 16 extends from the edge of the substrate 11 to the center of the substrate 11, and the shape and position of the slit 16 are not limited to this. For example, the slit 16 may be curved in a plan view, or may not reach the edge of the substrate 11.

In addition, by providing grooves (not penetrating the grooves of the substrate 11 in the thickness direction (Z-axis direction)) at the positions on the sides of the light-receiving portion 30 of the substrate 11 instead of the slits 16, the effect of improving safety can also be exerted.

(Other Embodiments) As mentioned above, the present invention has been described based on the embodiments and modifications thereof, and the present invention is not limited to the above embodiments and modifications.

For example, the light receiving unit 30 receives infrared light transmitted from the remote controller as light for controlling the light emitting state of the plurality of light emitting elements 20. However, the lighting fixture 100 may have, for example, a photographing device that photographs the lighting target space as the light receiving unit. At this time, the lighting fixture 100 can also determine whether a person exists in the lighting object space, or the brightness of the lighting object space, etc., based on the image captured by the camera, and control the light-emitting state (points) of the plurality of light-emitting elements 20 according to the determination result. On, off, dimming rate, etc.). In addition, the lighting fixture 100 may also be capable of wired communication or wireless communication to send the image captured by the camera to an external device. At this time, an external machine can also analyze the received image, and send a control signal based on the analysis result to the lighting fixture 100. That is, the lighting fixture 100 can also control the light-emitting state of the plurality of light-emitting elements 20 according to the result of analyzing the image by an external device.

Furthermore, for example, the substrate 11 of the light-emitting module 10 can also be a metal base substrate made of a metal material coated with a resin in addition to the glass composite substrate and the glass epoxy substrate exemplified in the above embodiment. At this time, for example, the heat of the plurality of light-emitting elements 20 and the plurality of circuit components 80 mounted on the main surface 11a of the substrate 11 by surface mounting technology is conducted to the appliance body 106 via the substrate 11 with good efficiency.

In addition, the outer shape of the substrate 11 is not limited to, for example, the outer shape shown in FIG. 2. For example, the light-emitting module 10 may also have an annular substrate 11 with an opening in the center.

In addition, the outer shape of the appliance body 106 is not limited to the outer shape shown in FIG. 3 and the like. For example, the appliance body 106 may have a polygonal outer shape such as a rectangle when viewed from above, or may have an outer shape composed of straight lines and curves.

In addition, one or more circuit components 80 arranged on the substrate 11 may constitute a circuit (electronic circuit) of a different type from the power supply circuit 90. For example, according to a signal sent from the outside of the luminaire 100, a control circuit that performs dimming control or color adjustment control on a plurality of light-emitting elements 20 may also be constituted by the one or more circuit components 80. In addition, the power supply circuit 90 may include the above-mentioned control circuit.

In addition, the power supply circuit 90 for supplying light-emitting power to the light-emitting module 10 may also be configured with a plurality of circuit components arranged on a substrate separate from the substrate 11. Furthermore, the power supply circuit 90 can also be arranged outside the lighting fixture 100. For example, the power circuit 90 may also be housed in a power box that supplies DC power to the lighting equipment 100. At this time, for example, as long as the light receiving unit 30 and the power circuit 90 in the power box are connected by a signal line, the control signal can also be transmitted from the light receiving unit 30 to the power circuit 90.

In addition, the light emitting element 20 is an SMD type LED element, but it is not limited to this. For example, the light-emitting module 10 may also be a COB (Chip On Board) structure in which LED chips are directly mounted on the substrate 11. At this time, the plurality of LED chips mounted on the substrate 11 are sealed together or individually sealed by the sealing member containing the wavelength conversion material, so that illuminating light with a predetermined color temperature can be obtained.

In addition, in the above-mentioned embodiments and modifications, the light-emitting element 20 is an LED element packaged with an LED chip as an example. However, semiconductor light-emitting elements such as semiconductor lasers, or other types of solid-state light-emitting elements, such as organic EL (Electro Luminescence) or inorganic EL elements, can also be used as the light-emitting element 20.

In addition, the above-mentioned embodiment and its modification examples are subjected to various modifications conceived by the manufacturer, and the configuration requirements and functions of each embodiment and its modification examples are arbitrarily combined without departing from the scope of the present invention. The implementation form is also included in the present invention.

4‧‧‧Ceiling 8‧‧‧Appliance installation part 9‧‧‧Ceiling side installation member 10‧‧‧Light-emitting module 10a‧‧‧Light-emitting module 10b‧‧‧Light-emitting module 11‧‧‧Substrate 11a‧ ‧‧Main surface 11b‧‧‧Back surface 13a‧‧‧Circuit area 13b‧‧‧Light-emitting area 14‧‧‧Light-emitting element range 15‧‧‧Protrusion 16‧‧‧Gap 20‧‧‧Light-emitting element 25‧‧‧ Light-emitting part 30‧‧‧Light-receiving part 80‧‧‧Circuit parts 90‧‧‧Power circuit 100‧‧‧Lighting appliance 106‧‧‧Apparatus body 126‧‧‧Support part 131‧‧‧Perimeter part 132‧‧Installation Face 136‧‧‧Step part 140‧‧‧Lighting cover 150‧‧‧Circuit cover 160‧‧‧Light source cover 161‧‧‧Lens part 163‧‧‧Receiving part 200‧‧‧Remote control IV-IV‧‧‧ Line X‧‧‧Direction Y‧‧‧Direction Z‧‧‧Direction

Fig. 1 is an exploded perspective view of the lighting fixture of the embodiment. Fig. 2 is a plan view showing the outline of the structure of the light emitting module of the embodiment. 3 is a perspective view showing the structural relationship between the light emitting module and the light source cover of the embodiment. Fig. 4 is a cross-sectional view showing the outline of the structure of the lighting fixture of the embodiment. Fig. 5 is a plan view showing an outline of the structure of a light emitting module according to Modification 1 of the embodiment. Fig. 6 is a plan view showing an outline of the structure of a light emitting module according to Modification 2 of the embodiment.

10‧‧‧Lighting Module

11‧‧‧Substrate

11a‧‧‧Main side

11b‧‧‧Back

13a‧‧‧Circuit area

13b‧‧‧Light-emitting area

20‧‧‧Light-emitting element

25‧‧‧Light-emitting part

30‧‧‧Light receiving part

80‧‧‧Circuit parts

90‧‧‧Power circuit

160‧‧‧Light source cover

161‧‧‧Lens section

163‧‧‧Containment Department

200‧‧‧Remote control

IV-IV‧‧‧line

X‧‧‧direction

Y‧‧‧ direction

Z‧‧‧ direction

Claims (10)

A lighting appliance includes: an appliance body; a substrate installed on the appliance body; a plurality of light-emitting elements arranged on the main surface of the substrate; and a light-receiving part arranged on the main surface of the substrate including the plurality of In the light-emitting area of the light-emitting element area, the light for controlling the light-emitting state of the plurality of light-emitting elements can be received. For example, the lighting fixture of the first item of the scope of patent application, wherein the light-receiving part is arranged at the position of the arrangement range of the plurality of light-emitting elements included in the light-emitting part area. For example, the luminaire of item 2 of the scope of patent application, wherein the plurality of light-emitting elements are arranged in a double-layer ring shape, and the light-receiving part is arranged between the double-layer ring-shaped arrays. For example, the lighting apparatus of any one of items 1 to 3 of the scope of the patent application further includes: a light source cover, which is translucent, and has an integrated part covering the plurality of light-emitting elements and a part covering the light-receiving part . For example, in the luminaire of item 4 of the scope of patent application, in the portion of the light source cover that covers the light receiving portion, that is, the receiving portion, the portion corresponding to the front end of the light receiving portion is formed to be thinner than its surroundings. For example, the lighting appliance of any one of items 1 to 3 of the scope of patent application further includes: a power supply circuit that operates according to the signal output from the light receiving part and supplies light-emitting power to the plurality of light-emitting elements; The power supply circuit is arranged in the area of the main surface of the substrate that is different from the light-emitting part area, that is, the circuit area. For example, the luminaire of item 6 of the scope of patent application, wherein, on the main surface of the substrate, the light-emitting part area is arranged to surround the circuit area. For example, the lighting appliance of item 6 of the scope of patent application further includes: a circuit cover, which covers the power circuit and has light-shielding properties. For example, in the lighting appliance of any one of items 1 to 3 in the scope of the patent application, the substrate has a protruding portion, and the protruding portion is arranged to protrude from the end edge in a plan view, and forms a part of the light-emitting portion area. The light receiving part is arranged on the protruding part. For example, in the lighting appliance of any one of items 1 to 3 in the scope of patent application, a slit or groove is formed in the light-emitting area of the substrate, and the light-receiving part is arranged on the side of the slit or groove.

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