JP7120616B2 - lighting equipment - Google Patents

Description

The present invention relates to a lighting device having an indirect lighting function for illuminating the installation surface side of the device.

Conventionally, as a lighting device having an indirect lighting function, there is a lighting device that includes a fixture body and a light source unit provided on the back side of the fixture body, and the light source unit has one main surface directed to the side of the fixture body. and a plurality of semiconductor light emitting elements mounted on the one main surface along the longitudinal direction of the substrate, wherein the substrate is a flexible substrate. device” has been proposed (for example, Patent Document 1).

JP 2014-146561 A

However, in the lighting device described in Patent Document 1, for example, if a portion of the fixed substrate is tilted, the light emitted from the tilted portion travels along an optical path different from the planned optical path. becomes. Therefore, there is a problem that optical design using light from the light source unit is difficult.
An object of the present invention is to provide an illumination device that facilitates optical design.

In the lighting device according to the present invention, a base detachably installed on an installation surface via a mounting portion, and a main irradiation unit arranged on the opposite side of the installation surface of the base and irradiating the opposite side of the installation surface. and a sub-irradiation unit in which a light-emitting element is mounted on a wiring body, and the wiring body is supported by the base in a state perpendicular to the direction in which gravity acts.

In the lighting device according to the present invention, since the wiring member is supported by the base in a state perpendicular to the direction of gravity, the posture is stable.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the illuminating device which concerns on 1st Embodiment, (a) is the figure seen from front side, (b) is the figure seen from the back side. It is the perspective view which looked at the disassembled state of the illuminating device from the back side. It is the perspective view which looked at the decomposition|disassembly state of the front side member from the front side rather than the power supply part except a shade. It is the perspective view which looked at the decomposition|disassembly state of the front side member from the back side rather than the power supply part except a shade. It is the perspective view which looked at the disassembled state of the shade from the front side. Fig. 10 is an enlarged perspective view of a state in which the sub light source section is disassembled from the base to which the back shade is attached, viewed from the front side; FIG. 4 is an enlarged perspective view of a state in which the sub light source section is disassembled from the base to which the back shade is attached, viewed from the back side; (a) is an enlarged perspective view of a cross section around the sub light source section viewed from the back side, and (b) is an enlarged perspective view of the cross section of the sub light source section with the reflector removed from the back side. (a) is an enlarged perspective view of the periphery of the cable covering portion of the reflector, and (b) is an enlarged perspective view of a state where the reflector is moved to the back side from the state of (a). It is the figure which looked at the illuminating device which concerns on 2nd Embodiment from the back side, (b) is the figure which looked at the state which removed the reflector from the state of (a) from the back side. FIG. 3 is an enlarged perspective view of a cross section of the auxiliary light source section with the reflector removed, as seen from the back side; It is the expansion perspective view which looked at the cross section of the sub light source part from the back side.

<Overview>
A lighting device according to an aspect of an embodiment includes a base that is detachably installed on an installation surface via a mounting portion, and a base that is arranged on the opposite side of the installation surface and illuminates the opposite side of the installation surface. A main irradiation unit and a sub-irradiation unit in which a light-emitting element is mounted on a wiring body are provided, and the wiring body is supported by the base in a state perpendicular to the direction in which gravity acts. The orthogonal state here refers to a state in which the wiring body is orthogonal to the direction of gravity, and a state in which the wiring body supported by the base is perpendicular to the direction of gravity in a range in which the wiring body does not move due to gravity. and tilted with respect to.
In a lighting device according to another aspect of the embodiment, the secondary irradiation unit emits light from the light emitting element in a direction opposite to the direction of gravity. As a result, light with a stable optical path is emitted from the light emitting element.
In a lighting device according to another aspect of the embodiment, the secondary irradiation unit includes: a reflector that reflects light emitted from the light emitting element to a side opposite to the installation surface and to an outer peripheral side of the light emitting element; and an optical control member that transmits part of the light reflected by the reflector and reflects part of the reflected light toward the installation surface. Thereby, the light emitted from the light emitting element can be emitted in a desired direction.

In a lighting device according to another aspect of the embodiment, the wiring body is formed by disposing a plurality of independent conductive pieces made of a metal plate at intervals. This allows the secondary irradiation unit to be implemented inexpensively.
In a lighting device according to another aspect of the embodiment, the light-emitting elements include two or more types of light-emitting elements with different emission colors, the wiring body includes two or more wiring bodies corresponding to the light-emitting elements of each emission color, and A power supply unit that supplies lighting power corresponding to each emission color is provided for each of the two or more types of light emitting elements. As a result, toning lighting and dimming lighting become possible.
In a lighting device according to another aspect of the embodiment, the two or more types of light-emitting elements include light-emitting elements emitting blue light. Thereby, the width of toning can be expanded.
In a lighting device according to another aspect of the embodiment, the power supply unit performs fluctuation control on one or more types of light emitting elements among the two or more types of light emitting elements. This provides a healing effect.

<First Embodiment>
1. Outline The lighting device A is a so-called ceiling light that is attached to a hanging ceiling rosette or a hanging rosette as a fixture to be attached.
Here, the side from which light is emitted from the lighting device A is defined as the front side, and the installation surface side is defined as the back side.
As shown in FIG. 1, the illumination device A here has a circular shape when viewed from the front and back directions. The circumferential direction of the lighting device A is also simply referred to as the "circumferential direction", and the radial direction of the lighting device A is also simply referred to as the "radial direction". Further, the imaginary line perpendicular to the installation surface and passing through the center of the lighting device A is simply referred to as the "central axis", and the direction parallel to the central axis is also referred to as the central axis direction.

An outline of the illumination device A will be described with reference to FIG.
The lighting device A includes a base 1 detachably installed on an installation surface via a mounting portion (for example, a hook blade), a main light source portion 3 arranged on the opposite side (front side) of the installation surface of the base 1, a base and an auxiliary light source unit 5 disposed on the installation surface side (back side) of the light source 1. The indirect lighting function is achieved by the auxiliary light source section 5 . The illumination device A has a power supply unit 7 that supplies lighting power to the main light source unit 3 and the sub light source unit 5 . Note that the power supply unit 7 is provided on the back surface of the base 1 .

The illumination device A has a main irradiation unit 31 that irradiates the front side as the main light source section 3 and a secondary irradiation unit 51 that irradiates the back side as the secondary light source section 5 .
The main light source section 3 here includes a protective cover 33 that covers the main irradiation unit 31 and a shade 35 that covers the main irradiation unit 31 including the protective cover 33 from the front side. The secondary light source section 5 includes a reflector 53 that reflects the light from the secondary irradiation unit 51, and an optical control member 55 that emits the reflected light in a desired direction. The secondary irradiation unit 51 includes a support 57 that supports the secondary irradiation unit 51 .
Each configuration will be described below.

2. Base The base 1 will be described with reference to FIG. 3 or FIG.
The base 1 is disc-shaped. The base 1 is configured by pressing a metal plate or by injection molding a resin material. Here, since the wiring members 313 (A to C) made of conductive pieces are used in the main irradiation unit 31, they are made of a resin material (thermoplastic resin material) from the viewpoint of ensuring insulation. Specifically, it is made of polypropylene (PP).
The base 1 has a circular plate-like portion 11 . A main irradiation unit 31 is attached to the surface of the plate-like portion 11 .

The base 1 has an opening 12 in the center of the plate-like portion 11 . The base 1 has a back flange portion 13 extending from the periphery of the opening 12 (the inner peripheral edge of the plate-like portion 11 ) to the rear side, and a groove portion 14 recessed from the outer peripheral edge of the plate-like portion 11 to the rear side.
As shown in FIG. 3, the bottom wall 143 of the groove portion 14 is formed with a positioning portion 145 for positioning the outer rear flange portion 333 of the protective cover 33 that fits into the inner peripheral wall 141 of the groove portion 14 . The positioning portion 145 protrudes outward from the bottom wall 143 , and the outer rear flange portion 333 of the protective cover 33 is fitted between the positioning portion 145 and the inner peripheral wall 141 .

The base 1 has recessed portions 15 and 16 for reinforcement which are recessed on the back side in the plate-like portion 11 .
The recessed portion 15 has an arcuate shape along the circumferential direction, and as shown in FIG.
The recess 16 extends radially. As shown in FIG. 3, the recessed portion 15 has ribs 151 for reinforcement on its peripheral wall at a portion that intersects with the recessed portion 16 .
The base 1 has an L-shaped portion 17 (see FIG. 7) that extends radially outward from the front side end of the outer peripheral wall 146 of the groove portion 14 and then bends to the rear side.

3. Main Light Source Section The main light source section 3 includes the main irradiation unit 31, the protective cover 33, and the shade 35 as described above. The main irradiation unit 31 and protective cover 33 are attached to the surface of the base 1 , and the shade 35 is attached to the protective cover 33 .
(1) Main irradiation unit The main irradiation unit 31 includes, as shown in the enlarged view of FIG. and
The LED elements 311 here are of two types with different emission colors in order to make them color-tunable. As an example, one is daylight white and the other is light bulb color.
A wiring body 313 (A to C) is composed of a plurality of spaced conductive pieces 315, and the LED element 311 is mounted so as to straddle the spaced adjacent conductive pieces 315. FIG. In addition, the wiring body 313 has two types of conductive paths in order to light the LED elements 311 of two types of emission colors so that the colors can be adjusted. A metal plate (such as a tin-plated steel plate) can be used as the conductive piece 315, for example.

The wiring body 313 includes a reinforcing portion 317 that reinforces the plurality of electrically conductive pieces 315 that are spaced apart. The reinforcing portion 317 here is configured by a chip resistor mounted so as to straddle the separated conductive pieces 315 . The chip resistor has an infinite resistance, and even if the conductive pieces 315 are short-circuited, there is no problem in terms of the circuit.
The main irradiation unit 31 here is fixed to the base 1 using a rod-like portion 111 of the base 1, as shown in FIG. In other words, between the conductive pieces 315 constituting the wiring bodies 313A to 313C, the insertion tip of the rod-shaped portion 111 inserted through either the through hole or the chipped portion formed in the conductive piece 315 becomes larger than the inserted portion. As such, it is done by being melted.
Further, the main light source section 3 can be configured by positioning the rod-shaped portion 111 and fixing the main irradiation unit 31 to the base 1 by attaching the protective cover 33 .

(2) Protective Cover Description will be made with reference to FIGS. 3 and 4. FIG.
The protective cover 33 is made of translucent resin such as polypropylene (PP). The protective cover 33 is attached (fixed) to the base 1 with screws (not shown) while covering the main irradiation unit 31 .
The protective cover 33 has an annular bulging portion 331 which is annular when viewed from the front side and bulges to the front side, an inner back collar portion 332 which extends from the inner peripheral edge of the annular bulging portion 331 to the back side, and an annular ring. and an outer back flange portion 333 extending from the outer peripheral edge of the bulging portion 331 to the back side.

The annular swelling portion 331 has recessed portions 331a that are recessed on the back side at intervals in the circumferential direction, and supports the main irradiation unit 31 from the front side when the protective cover 33 is attached to the base 1 .
When the protective cover 33 is attached to the base 1, the inner back flange portion 332 fits inside the back flange portion 13 of the base 1, and the outer back flange portion 333 fits into the inner peripheral wall 141 of the groove portion 14 of the base 1. do.
The protective cover 33 has a mounting portion 334 for mounting the shade 35 thereon. Here, when the shade 35 is rotated around the central axis, the mounting portion 334 is configured by an engaging portion with which the protective cover mounting portion 364 (see FIG. 5) of the shade 35 is engaged.

(3) Shade Description will be made with reference to FIG.
The shade 35 has a back shade 36 attached to the protective cover 33 and a front shade 37 attached to the back shade 36 . The shade 35 has a ring-shaped molding 38 between the front shade 37 and the back shade 36. - 特許庁Both the front shade 37 and the back shade 36 are made of a translucent resin material such as polypropylene (PP).

(3-1) Back Shade Description will be made with reference to FIG.
The back shade 36 includes a shade main body 361 having an annular plate shape, a shade cylindrical portion 362 provided on the inner peripheral edge side of the shade main body 361, and a shade groove portion formed at the back side end of the shade cylindrical portion 362 and having an open back side. a protective cover mounting portion 364 formed on the inner peripheral wall (peripheral wall near the central axis) of the shade groove portion 363 and mounted on the protective cover 33; a housing portion 366 formed on the outer peripheral side of the front shade mounting portion 365 at the front side end portion of the shade cylindrical portion 362 and for housing the molding 38; and a shade brim portion 367 extending from the outer peripheral edge of the shade to the back side.

The shade main body 361 has an inclined plate shape whose surface approaches the base 1 side as it moves radially outward.
As shown in FIG. 6, the shade cylindrical portion 362 has a cylindrical shape whose diameter decreases toward the rear side. The shade cylindrical portion 362 has a two-stepped portion at the front end. The stepped portion on the front side is referred to as a front stepped portion 362a, and the stepped portion on the back side is referred to as a back stepped portion 362b.
A front shade attachment portion 365 and a housing portion 366 are formed using the front stepped portion 362a and the back stepped portion 362b.
The rear shade 36 has a fixing portion 368 for fixing an optical control member 55 which will be described later. The fixing portion 368 is configured by a through hole for engaging (fitting) the convex portion 553c of the fixing portion 553 on the optical control member 55 side.

The shade groove portion 363 is open on the back side, and as shown in FIG. 7, the L-shaped portion 17 of the base 1 is fitted into the shade groove portion 363 from the back side. The L-shaped portion 17 has a plurality of reinforcing ribs 171 (see FIG. 4) at intervals in the circumferential direction on the rear side, and the reinforcing ribs 171 appear in FIG. It should be noted that the rear shade 36 is radially positioned with respect to the base 1 by this fitting.
The protective cover mounting portions 364 are circumferentially spaced and engage the mounting portions 334 of the protective cover 33 shown in FIGS.

As shown in FIG. 6, the front shade mounting portion 365 includes a fitting groove portion 365a into which the cylindrical portion 373 of the front shade 37 (see FIG. 5) is inserted, and a mounting portion 375 (see FIG. 5) of the cylindrical portion 373 of the front shade 37. 5) and an engaging portion 365b.
The fitting groove portion 365a is formed by a back cylindrical portion 365c cylindrically extending from the bottom wall of the back stepped portion 362b of the shade cylindrical portion 362 to the front side, and a peripheral wall 362c of the back stepped portion 362b.
The engaging portion 365b is formed of a convex portion protruding radially inward from the peripheral wall 362c of the back stepped portion 362b. In addition, in the back cylindrical portion 365c of the back shade 36, a missing portion 365d is formed in a portion facing the engaging portion 365b.

Since the molding 38 has a "U" cross-sectional shape, the accommodating portion 366 has a double groove portion in the radial direction as shown in FIG. The outer groove portion is formed by a peripheral wall 362d of the front stepped portion 362a and an outer cylindrical portion 366a cylindrically extending from the bottom wall of the front stepped portion 362a to the front side. The inner groove portion is formed by an outer cylindrical portion 366a and an inner cylindrical portion 366b cylindrically extending from the bottom wall of the front stepped portion 362a to the front side.

(3-2) Front shade As shown in FIG. 5, the front shade 37 has a dome portion 371 that is circular when viewed from the front side and has a dome shape that bulges toward the front side as a whole, and an opening in the dome portion 371. It has a cylindrical portion 373 provided on the side end and a mounting portion 375 provided on the cylindrical portion 373 .
The mounting portion 375 has a convex shape, for example. to engage.

(3-3) Mall As shown in FIG. 5, the mall 38 is ring-shaped and has, for example, a "U"-shaped cross section. The molding 38 is inserted into the double outer groove portion and the double inner groove portion of the housing portion 366 of the rear shade 36 (see FIG. 7). The molding 38 is arranged between the back shade 36 and the front shade 37, so that a direct emission part (front shade 37) that is emitted to the outside through a surface facing the main irradiation unit 31 and the main Clarify the boundary with the indirect emission part (the back shade 36) that is emitted to the outside through a surface that does not face the irradiation unit 31 (for example, the shade cylindrical part 362, the shade main body 361, etc.). It has a tightening effect on the direct emission part due to it, and design effectiveness can be obtained.

4. Secondary Light Source Section The secondary light source section 5 includes a secondary irradiation unit 51, a reflector 53, an optical control member 55, and a support 57, as shown in FIG.
As shown in FIG. 1B, the auxiliary light source section 5 has an annular shape (for example, an annular shape). The sub-irradiation unit 51 has an annular shape as shown in FIG. In this embodiment, which is an example, all of the secondary irradiation units 51 are positioned outside the outer peripheral edge of the main irradiation unit 31 when viewed from the installation surface side.

(1) Sub-irradiation Unit The sub-irradiation unit 51 has an annular shape as shown in FIG. In particular, it has an annular shape whose radial dimension (width) is smaller than that of the main irradiation unit 31 .
The secondary irradiation unit 51 has a wiring body 511 and a plurality of LED elements 513, as shown in FIG.
The wiring body 511 is composed of a substrate having a wiring pattern on the installation surface side of the insulating plate. Examples of insulating plates include SEM3 and glass epoxy plates.
The wiring body 511 has a fixing portion 515 for fixing the secondary irradiation unit 51 to the support 57 . The fixing portion 515 here is a through-hole or a missing portion through which the pin-shaped portion, which is the fixing portion 572 of the support 57 , is inserted, and is formed in the wiring body (insulating plate) 511 . The fixation here is performed by making the insertion tip portion of the pin-shaped portion (572) inserted through the through hole or the chipped portion by melting or the like larger than the through hole or the chipped portion.
The LED element 513 is, for example, a light-emitting element that emits the color of an incandescent bulb, and is light-controlled by the power supply unit 7 so as to be dimmable.

(2) Support The description will be made with reference to FIG. 6 or FIG.
The support 57 has a unit support portion 571 that supports the secondary irradiation unit 51 from the front side. In other words, the support 57 has a unit support portion 571 that supports the wiring body 511 of the sub-irradiation unit 51 on a plane perpendicular to the direction of gravity. The unit support portion 571 is configured so that the light emitted from the secondary irradiation unit 51 is directed toward the installation surface. Here, the unit support portion 571 has a flat annular shape (in this case, a flat annular shape) substantially parallel to the installation surface. That is, the sub-irradiation unit 51 is supported so that the main emission direction of the LED elements 513 of the sub-irradiation unit 51 is substantially perpendicular to the installation surface (the main emission direction is opposite to the direction of gravity).
The support 57 has a fixing portion 572 for fixing the sub-irradiation unit 51 on the unit support portion 571 . As shown in FIG. 7, the fixing portion 572 is formed of a pin-shaped portion extending to the rear side, and as shown in FIG. The fixing portion 515 of the body 511 is inserted.
Here, the support member 57 is made of a thermoplastic resin material, and is melted so that the insertion tip side of the pin-shaped portion that is inserted through the fixing portion 515 of the wiring member 511 is larger than the through hole or the chipped portion after insertion. .
The support 57 has a positioning portion 573 for positioning the sub-irradiation unit 51 in the unit support portion 571, as shown in FIGS. 7 and 8B. As shown in FIG. 7, the positioning portion 573 is configured by, for example, an annular ridge. As shown in FIG. 8B, the ridges are formed inside the inner peripheral edge of the ring-shaped wiring body 511 .

As shown in FIG. 6, the support 57 has a positioning portion 575 integrated with the unit support portion 571 so as to be placed on the base 1 in a positioned state.
The positioning portion 575 extends in a cylindrical shape from the outer peripheral edge of the unit support portion 571 having a flat annular shape to the front side. The positioning portion 575 is fitted onto the outer peripheral wall 146 of the groove portion 14 of the base 1 from the back side, as shown in FIG. 8(a). In this state, the unit support portion 571 abuts (is supported by) the bottom wall 143 of the groove portion 14 of the base 1 .
The support 57 has a fixing portion 576 for fixing the support 57 to the base 1 at the positioning portion 575, as shown in FIG. A plurality of fixing portions 576 are formed at intervals in the circumferential direction. The fixing portion 576 of the support body 57 is configured by a convex portion protruding radially inward from the positioning portion 575 . The convex portion engages with a through hole (or recess) that is a fixing portion 147 (see FIGS. 3 and 4) formed in the outer peripheral wall 146 of the groove portion 14 of the base 1 .

The support 57 has a reflector support portion 577 that supports the reflector 53 . As shown in FIG. 7, the reflector support portion 577 has an outer cylinder portion 577a that cylindrically extends from the outer peripheral edge of the unit support portion 571 to the back side, and a cylindrical portion that extends from the inner peripheral edge of the unit support portion 571 to the back side. and an inner cylinder portion 577b.
A step is provided at the extended distal end of the outer cylinder portion 577a, and the thickness of the extended distal end is reduced. As shown in FIG. 8(a), the extended tip 577c of the outer cylinder portion 577a is inserted into the outer groove portion 533a of the reflector 53. As shown in FIG. The bottom of the stepped portion abuts on the inner side of the opening of the outer groove portion 533 a of the reflector 53 . The inner cylindrical portion 577b is inserted into the inner groove portion 533b of the reflector 53. As shown in FIG.
The outer cylinder portion 577a has a transmitting function of transmitting the light emitted from the secondary irradiation unit 51 and reflected by the reflector 53 outward in the radial direction. The transmission function is performed by forming the support 57 with a light-transmitting resin material.

(3) Reflector As shown in FIGS. 6 and 7, the reflector 53 has a reflector 531 that reflects the light from the secondary irradiation unit 51 . The reflector 531 faces the sub-irradiation unit 51 . The reflecting portion 531 reflects the light emitted toward the installation surface outward in the radial direction. That is, the reflecting portion 531 reflects light to the outside of the space formed by the support 57 and the reflector 53 . In other words, the reflecting section 531 has a reflecting surface 531a (see FIG. 6) that reflects the light from the secondary irradiation unit 51 toward the outer cylinder portion 577a of the support 57. As shown in FIG.

The reflecting portion 531 has an annular shape. More specifically, as shown in FIG. 8A, the reflecting portion 531 is a curved plate that approaches the installation surface as it moves from the inner peripheral edge side to the outer peripheral edge side of the unit support portion 571 of the support body 57 in the cross section. is rotated around the central axis. The curved plate in the cross section has a shape corresponding to the first quadrant of an ellipse with the radial direction as the long axis and the origin at the intersection of the unit support portion 571 of the support 57 and the outer cylinder portion 577a. That is, the curved plate in cross section has a shape close to a quarter ellipse.

The reflector 53 has a support portion 533 supported by the support 57 . That is, the support portion 533 is supported by the reflector support portion 577 of the support 57 . Here, the support portion 533 is composed of an outer groove portion 533a for the outer cylinder portion 577a of the support body 57 and an inner groove portion 533b for the inner cylinder portion 577b of the support body 57, as shown in FIG. . As shown in FIG. 8A, the outer cylinder portion 577a is inserted into the outer groove portion 533a, and the inner cylinder portion 577b is inserted into the inner groove portion 533b. As a result, it is possible to prevent insects, dust, etc. from entering the sub-irradiation unit 51, thereby eliminating the occurrence of problems.

The reflector 53 has a positioning portion 535 for positioning with respect to the base 1, as shown in FIGS. The positioning portion 535 is composed of a cylindrical portion projecting from the inner end of the reflecting portion 531 to the front side in a cylindrical shape (in this case, a cylindrical shape). As shown in FIG. 8A, the positioning portion 535 abuts on the inner peripheral wall 141 of the groove portion 14 of the base 1 from the inside in the radial direction.
The reflector 53 has a fixing portion 537 for fixing to another member. Here, reflector 53 is fixed to base 1 . As shown in FIG. 7, a plurality of fixing portions 537 are provided at intervals in the circumferential direction. The fixed portion 537 has an extension plate portion 537a extending from the inner periphery of the reflecting portion 531 to the front side, and a recess or a through hole 537b formed in the extension plate portion 537a. As shown in FIGS. 8A and 8B, the through hole 537b is engaged with a convex portion 148a that protrudes from the inner peripheral wall 141 of the groove portion 14 of the base 1 toward the central axis.
A groove portion 537c (see FIG. 7) exists between the extension plate portion 537a and the positioning portion 535. As shown in FIG. This enables elastic deformation of the stretching plate portion 537a in the thickness direction. As shown in FIG. 8, a pair of plate-like ribs 148b of the inner peripheral wall 141 of the groove portion 14 of the base 1 are fitted into the groove portion 537c. Thereby, the reflector 53 is fixed to the base 1 while being positioned in the circumferential direction.

The reflector 53 has a function of covering the sub-irradiation unit 51, as shown in FIG. 8(a). As shown in FIG. 9, the reflector 53 has a cable covering section 539 that covers a cable (not shown) that electrically connects the secondary irradiation unit 51 and the power supply section 7 .
The cable covering portion 539 extends from the inner peripheral side of the reflecting portion 531 and the supporting portion 533 toward the central axis. The cable covering portion 539 has a box shape with an open front side (that is, the plate-like portion 11 side of the base 1). As shown in FIG. 9B, the cable covering portion 539 has a notch portion 539a for the cable on a side wall 539b facing the power supply case 71 of the power supply portion 7. As shown in FIG.
When the reflector 53 is fixed to the base 1 , the cable covering portion 539 is fitted onto the cable housing wall 117 erected on the rear side of the plate-like portion 11 of the base 1 . It should be noted that the cable covering portion 539 is fixed by a screw (not shown) in the fitted state. The screw is inserted through the boss hole 539d of the cover wall 539c of the cable covering portion 539 and screwed into the boss screw portion 113 of the base 1 (see FIG. 9B).

As shown in FIG. 9B, the cable housing wall 117 has a notch 117a for the cable and has a facing wall portion 117b facing the power supply case 71, and an end portion of the facing wall portion 117b and the base 1. A pair of connecting wall portions 117 c and 117 d that connect with the inner peripheral wall 141 of the groove portion 14 are provided. Thereby, the cable can be accommodated and the plate-like portion 11 of the base 1 can be reinforced. In addition, as shown in FIG. 9A, two rib portions 115 are provided on the base 1 around the connecting wall portions 117c and 117d to guide the covering of the cable covering portion 539 to the cable housing wall 117. ing. When viewed from the rear side, the rib portion 115 has a U-shape facing the cable housing wall 117, and the rear end portions of the pair of opposite portions are inclined.

(4) Optical Control Member The optical control member 55 has a body portion 551 that reflects the light transmitted through the outer cylinder portion 577a of the support 57 toward the installation surface side or transmits the light as it is. As shown in FIG. 8, the body portion 551 is arranged so as to face the outer cylindrical portion 577a of the support 57. As shown in FIG. The body portion 551 has an annular shape. More specifically, as shown in FIG. 8(a), the main body portion 551 rotates a curved plate that approaches the installation surface as it moves radially outward in the cross section around the central axis. It has the shape of a rotating body. The curved plate in cross section has an arcuate shape protruding toward the installation surface.

The optical control member 55 has a fixing portion 553 for fixing to another member. As shown in FIGS. 6 and 7, the fixing portion 553 includes a cylindrical portion 553a extending from the inner peripheral end of the main body portion 551 to the front side, and a pair of groove portions formed in the cylindrical portion 553a at intervals in the circumferential direction. 553b and a convex portion 553c formed between a pair of groove portions 553b in the cylindrical portion 553a and protruding toward the central axis.
The convex portion 553c engages with a fixing portion 368 (through hole) present in the shade cylindrical portion 362 of the back shade 36 shown in FIG.

The optical control member 55 has a flange portion 555 projecting inward in the radial direction at the connecting portion between the body portion 551 and the cylindrical portion 553 a of the fixing portion 553 . As shown in FIG. 8B, when the optical control member 55 is attached to the back shade 36, the flange 555 abuts on the back side edge of the outer peripheral wall 363b forming the shade groove 363 of the back shade 36.

(5) Fixing to the Base The sub-irradiation unit 51 has the wiring body 511 supported from the front side by a unit support portion 571 perpendicular to the direction in which gravity acts. Thereby, the secondary irradiation unit 51 can be supported in a stable state (stable attitude). In addition, since the unit support portion 571 of the support body 57 is placed on the surface perpendicular to the direction of action of gravity on the base 1 (here, the back surface of the bottom wall 143 of the groove portion 14 of the base 1), the sub-irradiation The unit 51 can be easily installed in a stable posture. In addition, the position of the sub-irradiation unit 51 in the front-back direction is thereby determined.
The wiring body 511 is radially positioned by a positioning portion 573 and a reflector support portion 577 formed in the unit support portion 571 . The support 57 is attached to the base 1 in such a state that the support 57 and the reflector 53 are fitted into the groove portion 14 of the base 1 from the rear side. As a result, the support 57 is radially positioned with respect to the base 1, and the wiring member 511 is radially positioned on the positioned support 57. As shown in FIG. By attaching (fitting) the support 57 and the reflector 53 to the base 1 in this manner, the radial position of the secondary irradiation unit 51 is determined.
The reflector 53 is attached to a support 57 that supports the sub-irradiation unit 51 so as to face the sub-irradiation unit 51 . This facilitates alignment between the reflector 53 and the sub-irradiation unit 51 (if another member intervenes, alignment with the other member is required, but the reflector 53 is directly attached to the support 57). Therefore, alignment with other members becomes unnecessary.).

(6) Optical Design The sub-irradiation unit 51 is arranged on the rear surface (installation surface) side of the bottom wall 143 of the groove 14 which is formed near the outer periphery of the base 1 and is recessed on the rear side. For this reason, there is no portion that hinders the progress of the light emitted from the secondary irradiation unit 51 and reflected by the reflector 53, and an optical member for detouring the portion that hinders the progress of light is not required. Light emitted from the unit 51 can be extracted. In addition, as a result, the light extraction efficiency from the sub-irradiation unit 51 can be increased.
Since the power supply unit 7 is arranged inside the groove 14 of the base 1 in the radial direction, the groove 14 does not increase the thickness of the lighting device A. As shown in FIG. Furthermore, since the mounting portion of the protective cover 33 and the shade 35 is accommodated in the groove portion 14, the light from the main irradiation unit 31 can be prevented from being blocked by the protective cover 33.

5. Power Supply Section Mainly referring to FIG. 3 or 4, description will be made.
The power supply unit 7 includes a power supply case 71, a power supply circuit (not shown), a mounting portion 72 (see FIG. 4), and a mounting operation portion 73 (see FIG. 3).
The power supply case 71 is composed of a power supply base 711 and a power supply cover 713 that partially covers the power supply base 711 . A power supply circuit is accommodated in an internal space formed by the power supply base 711 and the power supply cover 713 . The power supply base 711 is made of transparent flame-retardant resin material, here, transparent flame-retardant polycarbonate (PC). The reason why it is made transparent is that when the lighting device A is attached to the mounting surface, the mounting surface can be visually observed. The power supply cover 713 is made of a flame-retardant resin material, here flame-retardant polycarbonate (PC). By covering the power supply unit 7 with a flame-retardant resin, the safety against ignition of the power supply unit 7 can be improved.
The power source unit 7 has a bottomed cylindrical portion 74 that is recessed to the back side in a bottomed cylindrical shape and is integrated with the power source base 711 . A hooking blade 721 that constitutes the mounting portion 72 is attached to the back side of the bottom portion of the bottomed tubular portion 74 as shown in FIG. On the front side of the bottom portion of the bottomed cylindrical portion 74, as shown in FIG.
The power supply unit 7 is connected to the flat region 11a (not shown) of the base 1 by a screw (not shown) inserted from the front side of the base 1 in a state where the opening side end of the bottomed tubular portion 74 is fitted to the back flange portion 13 of the base 1 . (see FIG. 4).

The power supply circuit includes circuits for lighting the main irradiation unit 31 and the sub irradiation unit 51 . The power supply circuit includes a conversion circuit that converts AC to DC, a conversion circuit that converts the current to be supplied to the main irradiation unit 31 and the sub irradiation unit 51, and the like, as well as lighting information transmitted from a remote controller (not shown). There is a control circuit and the like for controlling lighting of the main irradiation unit 31 and the sub irradiation unit 51 .

<Second embodiment>
In the first embodiment, the secondary irradiation unit 51 includes the LED elements 513 emitting light of one color, but may include LEDs emitting light of two or more colors.
The illumination device B including the sub-light-emitting portion 1005 having two types of LEDs will be described below.
The secondary light-emitting section 1005 includes a secondary irradiation unit 1051, a reflector 1053, an optical control member 55, and a support 1057, as shown in FIG. 10, as in the first embodiment.
Note that the optical control member 55 has the same configuration as the optical control member 55 of the first embodiment, so description thereof will be omitted. Further, the sub-light-emitting portion 1005 is attached to the base 1 and the shade 35 (rear shade 36) in the same manner as in the first embodiment. .

1. Secondary Irradiation Unit The secondary irradiation unit 1051 includes, as shown in FIG. A second secondary irradiation unit 1051b is provided in which two LED elements 1513b are mounted on a second wiring body 1511b.
Here, the first emission color is incandescent light, and the second emission color is blue. In this case, the first LED element 1513a is an incandescent LED, and the second LED element 1513b is a blue LED. In addition, a variety of toning is possible by including a blue LED.
The first sub-irradiation unit 1051a and the second sub-irradiation unit 1051b are annular, here, annular. The first secondary irradiation unit 1051a is positioned on the outer peripheral side of the second secondary irradiation unit 1051b. That is, the first sub-irradiation unit 1051a and the second sub-irradiation unit 1051b are arranged in double concentric circles.

The wiring body 511 of the first embodiment is a printed circuit board in which a wiring pattern is printed on an insulating plate, but the wiring body 1511 of the second embodiment is composed of a plurality of separated conductive pieces. The conductive piece is made of a metal plate (tin-plated steel plate, etc.).
The first conductive pieces 1517a forming the first wiring body 1511a are, for example, arc-shaped, are arranged at intervals in the circumferential direction, and have an annular shape as a whole. Here, two first conductive pieces 1517a adjacent in the circumferential direction are connected by the first LED element 1513a. Although the first conductive pieces 1517a are connected to each other only by the first LED element 1513a here, they may be reinforced by the reinforcing portion 317 (see FIG. 3) as in the main irradiation unit 31 of the first embodiment. However, it may be reinforced with an insulating resin material.
The first wiring body 1511a has a first fixing portion 1515a for fixing the first secondary irradiation unit 1051a to the support 1057. As shown in FIG. The first fixing portion 1515a is configured by a chipped portion or a through hole, and the fixing portion (pin-shaped portion) 1572 of the support 1057 is inserted through the chipped portion or the through hole.

The second conductive pieces 1517b forming the second wiring body 1511b are, for example, arc-shaped, are arranged at intervals in the circumferential direction, and have an annular shape as a whole. Here, two second conductive pieces 1517b adjacent in the circumferential direction are connected by a second LED element 1513b. Although the second conductive pieces 1517b are connected to each other only by the second LED elements 1513b here, they may be reinforced by the reinforcing portion 317 (see FIG. 3) as in the main irradiation unit 31 of the first embodiment. However, it may be reinforced with an insulating resin material.
The second wiring body 1511b has a second fixing portion 1515b for fixing the second secondary irradiation unit 1051b to the support 1057. As shown in FIG. The second fixing portion 1515b is configured by a missing portion or a through hole, and the fixing portion (pin-shaped portion) 1572 of the support 1057 is inserted through the missing portion or through hole.

2. Support Mainly referring to FIG. 11, description will be made.
The support 1057 has a unit support 1571 that supports the sub-irradiation unit 1051 from the front side, as in the first embodiment. The support 1057 has a fixing portion 1572 for fixing the sub-irradiation unit 1051 on the unit support portion 1571 . The support 1057 has a positioning portion 1573 for positioning the sub-irradiation unit 1051 in the unit support portion 1571, as in the first embodiment. The positioning portion 1573 is positioned between the first wiring body 1511a and the second wiring body 1511b in the radial direction, and has a function of restricting contact between the first wiring body 1511a and the second wiring body 1511b in the radial direction. also have
The support 1057 has a positioning portion 1575 for being placed on the base 1 in a positioned state, as in the first embodiment.
The support 1057 has a plurality of fixing portions 576 (not shown) for fixing the support 1057 to the base 1 at intervals in the circumferential direction on the positioning portion 1575 . Note that the fixing portion 576 has the same configuration as the fixing portion 576 (see FIG. 6) of the first embodiment, and the description thereof will be omitted.

The support 1057 has a reflector support 1577 that supports the reflector 1053 . The reflector support portion 1577 is composed of an outer cylindrical portion 1577a that extends cylindrically from the outer peripheral edge of the unit support portion 1571 to the back side, and a stepped portion 1577b that is formed at the extended distal end of the outer cylindrical portion 1577a. , the outer peripheral end 1531a of the reflector 1053 is supported by the stepped portion 1577b. Note that the outer cylinder portion 1577a has a transmission function of transmitting the light from the sub-irradiation unit 1051 to the outside.
As shown in FIG. 11, the support 1057 has an inner cylindrical portion 1579 extending from the inner peripheral edge of the unit support portion 1571 to the rear side. The inner cylindrical portion 1579 and the outer cylindrical portion 1577a of the reflector support portion 1577 have a positioning function of restricting radial movement of the first wiring member 1511a and the second wiring member 1511b.

3. Reflector A description will be given with reference to FIG.
As in the first embodiment, the reflector 1053 has a ring shape, here an annular shape, and has a reflection portion 1531 that reflects the light from the sub-irradiation unit 1051 . Reflecting portion 1531 has a 1/4 elliptical cross-sectional shape that approaches the installation surface as it moves from the inner peripheral edge side to the outer peripheral edge side of unit support portion 1571 of support 1057 .
Reflector 1053 is supported by contacting stepped portion 1577b of support 1057 at outer edge 1531a of reflector 1531 .
As in the first embodiment, the reflector 1053 includes a positioning portion 535 for positioning with respect to the base 1, a fixing portion 537 for fixing to other members, and a cable covering portion 539 (see FIG. 10A). ) and Note that the positioning portion 535, the fixing portion 537, and the cable covering portion 539 are the same as those in the first embodiment, so description thereof will be omitted.

As shown in FIGS. 10A and 12, the reflector 1053 has a housing portion 1538 for housing a fixture 1059 (see FIGS. 10B and 11) for fixing the wiring body 1511. . The accommodating portions 1538 are provided at a plurality of locations (here, three locations) at intervals in the circumferential direction as shown in FIG. 10(a). That is, three fixtures 1059 are provided at intervals in the circumferential direction.
As shown in FIG. 12, the accommodating portion 1538 has an "L"-shaped cross section. The long side of the "L" shape is configured to be parallel to the long axis of the reflecting portion 1531 having a quarter elliptical cross section. In other words, the 1/4 elliptical reflecting portion 1531 is shaped like an "L".

As shown in FIG. 12, the accommodating portion 1538 has a recessed portion 1538a in a region extending from the radial center of the long side to the center of the short side in the front and back direction. A fastener 1059 fits into the recessed portion 1538a. Specifically, the projecting portion 1595a of the standing portion 1595 of the fixture 1059 is fitted to the short side portion, and the outer peripheral side end portion 1591a of the reflecting portion 1591 is fitted to the long side portion.
In addition, the inner surface of the long side portion and the outer peripheral side portion of the recessed portion 1538 a have the same curved surface as the inner surface of the reflecting portion 1531 . Accordingly, the light emitted from the sub-irradiation unit 1051 toward the housing portion 1538 is reflected in the same direction as the light emitted toward the reflecting portion 1531, thereby suppressing luminance unevenness.

4. Fixture Mainly referring to FIG. 12, description will be made.
The fixture 1059 supports the first sub-irradiation unit 1051a from the back side (reflector 1053 side) to fix the first sub-irradiation unit 1051a. The fixture 1059 is made of, for example, the same resin material as the reflector 1053 and reflects the light from the secondary irradiation unit 1051 .
The fixture 1059 has a reflecting portion 1591 having the same cross-sectional shape as the inner peripheral side of the reflecting portion 1531 of the reflector 1053 . As a result, the light directed from the secondary irradiation unit 1051 toward the fixture 1059 is also reflected in the same direction as the light directed toward the reflector 1053 .
The fixture 1059 has an extending portion 1593 extending to the front side on the surface of the reflecting portion 1591 on the inner peripheral end side. The front end of the extending portion 1593 contacts or approaches the first secondary irradiation unit 1051a. As a result, the first secondary irradiation unit 1051a is fixed to the unit support portion 1571 side of the support 1057 .
The fixture 1059 has a standing portion 1595 standing from the inner peripheral end of the reflecting portion 1591 and a convex portion 1595 a protruding radially inward from the inner peripheral surface of the standing tip of the standing portion 1595 . The convex portion 1595a engages the concave portion 1538a of the housing portion 1538 of the reflector 1053 .

5. Power Supply Unit The power supply unit 1007 has a control circuit that controls lighting of the secondary irradiation unit 1051 . The control circuit individually supplies lighting power to the first secondary irradiation unit 1051a and the second secondary irradiation unit 1051b. The control circuit is configured to be able to adjust the lighting power supplied to the first secondary irradiation unit 1051a. The control circuit is configured to be able to adjust the lighting power supplied to the second secondary irradiation unit 1051b. The lighting power is adjusted by PWM control or the like. This enables dimming lighting and toning lighting of the secondary irradiation unit 1051 .
The control circuit is configured to perform 1/f fluctuation control to change the light amount (dimming) and light color (toning) of the sub-irradiation unit 1051 over time according to the fluctuation having a spectrum inversely proportional to the frequency f. ing. Note that the fluctuation control can be performed by a remote control signal operated by the user.

Although the first and second embodiments have been described above, the present invention is not limited to these embodiments, and may be modified as follows. Moreover, what combined 1st and 2nd embodiment, a modification, and a modification with each other may be used.
Further, examples not described in the first and second embodiments and modified examples, and design changes within the scope of the invention are also included in the present invention.

<Modification>
1. Base The base 1 has an annular shape, but may have a rectangular or polygonal annular shape. The base may have, for example, a reflecting function that reflects light from the main irradiation unit 31 to the front side. Although the base 1 is made of resin, it may be made of a metal plate, for example. At this time, a printed circuit board may be used as the wiring body 313 of the main irradiation unit 31, and when the conductive piece 315 is used as in the first embodiment, it can be implemented by applying an insulating treatment such as an insulating sheet.

2. Main Light Source Section The main light source section 3 includes a main irradiation unit 31, a protective cover 33, and a shade 35, but these configurations are not limited to those of the embodiment.
When viewed from the front side, the main light source may be circular, elliptical, oval, square, rectangular, equilateral triangular or regular polygonal. good too.
(1) Main irradiation unit Although the LED elements 513, 1513a, and 1513b were used as the light sources, laser elements, EL elements, etc. may be used, and the LEDs may be of the COB type or SMD type. good too.
The wiring body may be of the conductive piece type or of the printed circuit board type.
The main irradiation unit 31 includes a wiring body 313 composed of a plurality of conductive pieces 315. For example, a printed circuit board having a wiring pattern on its surface may be used.
(2) Protective Cover The protective cover 33 has the recessed portion 331a in the annular bulging portion 331, but the annular bulging portion may not have the recessed portion. The protective cover, when viewed from the front side, may have, for example, two semi-circular bulges, or may have a plurality of arcuate bulges.
(3) Shade The shade 35 is composed of two members, the back shade 36 and the front shade 37, but it may be composed of one integrated member, or may be composed of three or more members. . The shade 35 is detachably attached to the protective cover 33, but may be detachably attached to the base. The shade 35 has a structure having a molding 38 between the rear shade 36 and the front shade 37, but may have a structure without the molding.

3. Sub-Light Source Part (1) Sub-irradiation Unit The sub-irradiation unit 51 of the first embodiment has a single ring shape, and the sub-irradiation unit 1051 of the second embodiment has a double ring shape. However, the sub-irradiation unit may be annular as long as it has a polygonal annular shape such as a square annular shape. In the case of multiple rings, all of the plurality of rings may have the same shape, or may have different shapes such as an inner circular ring and an outer quadrangular ring. Further, the ring may be continuous in the circumferential direction, or a plurality of sub-irradiation units may be arranged in the circumferential direction to form one ring as a whole.

Although the second sub-illumination unit 1051b includes only the blue LED element 1513b, the second illumination unit may include, for example, a blue LED element and an LED element emitting light other than blue. In addition, although the secondary irradiation unit 1051 of the second embodiment includes two types of first secondary irradiation unit 1051a and second secondary irradiation unit 1051b with different emission colors, three or more types of secondary irradiation units with different emission colors are provided. may be provided.
The secondary irradiation units 51, 1051a, and 1051b have a plurality of LED elements 513, 1513a, and 1513b arranged in a line on the wiring body, but they may be arranged in a plurality of lines, in a zigzag pattern, or in another form.

The secondary irradiation units 51, 1051a, and 1051b are positioned radially outside the main irradiation unit 31 when projected from the back side. They may be arranged so as to overlap. Considering the heat generated from the LED element during lighting, it is preferable that the sub-irradiation unit and the main irradiation unit do not overlap in the front-back direction. When the secondary irradiation unit 51 is provided on the bottom wall 143 of the groove 14 of the base 1 as in the embodiment, even if the secondary irradiation unit and the main irradiation unit overlap in projection, the depth of the groove is It will be spaced apart in the front-back direction, and the influence of heat can be suppressed.
The secondary irradiation units 51 and 1051 are provided at a portion near the outer peripheral end of the base 1, but may be provided at an intermediate portion between the radial center and the outer peripheral end. When it is provided in the intermediate portion, it can be implemented by providing, for example, a power supply unit in a ring shape. In addition, considering the light extraction efficiency of the secondary irradiation unit and the design when illuminating the back side of the outer peripheral edge of the lighting device on the installation surface, it is better to install the secondary irradiation unit near the outer peripheral edge of the base. preferable. Specifically, it is preferable that the secondary irradiation unit is located on the outer peripheral side of 1/2 or more, more preferably 1/3 of the radius of the base. In addition, it is preferable that the auxiliary light source unit is positioned on the outer peripheral side of the 1/3 of the radius of the lighting device with respect to the lighting device.

(2) Reflector The reflectors 531 and 1531 of the reflectors 53 and 1053 have a 1/4 elliptical shape in cross section. Any shape other than the 1/4 elliptical shape may be used as long as the light can be reflected outward, more specifically toward the optical control member 55 .
Although the reflectors 53 and 1053 are fixed to the inner peripheral wall 141 of the groove 14 of the base 1, they may be fixed to the supports 57 and 1057 supporting the secondary irradiation units 51 and 1051, for example. In this case, the support, the sub-irradiation unit and the reflector may be integrated into a unit and attached to the base.
As described in the second embodiment, the reflector 53 presses the storage part (1538) for the fixture 1059 and the first sub-irradiation unit 1051a so that the double sub-irradiation units 1051a and 1051b can also be used. However, when a single sub-irradiation unit 51 is used as in the first embodiment and arranged on the outer peripheral side of the unit support portion 571 of the support 57, It does not have to have a housing portion (1538) or an extension portion (1593).

(3) Optical Control Member The optical control member 55 is attached to the shade 35, but may be attached to the base, for example. The optical control member 55 is configured to transmit or reflect the light from the reflector due to unevenness on the front surface and the back surface. By adjusting the size and shape of the unevenness, it is possible to obtain indirect lighting suitable for the purpose of use.

(4) Support The supports 57 and 1057 support the wiring bodies 511 and 1511 of the sub-irradiation units 51 and 1051 in parallel with the installation surface. In other words, the supports 57 and 1057 support the wiring bodies 511 and 1511 in such a manner that the main surfaces thereof are perpendicular to the direction in which gravity acts. However, the position of the sub-irradiation unit with respect to the base does not change just by placing it on the base (no other member is required to maintain the posture of the sub-irradiation unit), and the wiring body is supported in an inclined state. may
The supports 57 and 1057 have unit support portions 571 and 1571 that support the sub-irradiation units 51 and 1051. may be In this case, the wiring bodies 511 and 1511 can be fixed in the same manner as in the embodiment by providing a pin-shaped portion, which is an example of the fixing portion 572, so as to extend from the bottom wall of the groove portion of the base to the back side.

4. Power Supply Unit The power supply unit 7 of the embodiment has the power supply case 71 and the mounting portion 72 combined together as one unit, but may be separate units. In this case, the power supply case (power supply circuit) may be arranged on the front side of the base, may be arranged on the back side, or may be arranged on both the back side and the front side.
Although the mounting portion 72 is integrally incorporated into the base 1, the mounting portion may be of an adapter type that is detachable from the base.
In addition to the lighting circuit, the power supply unit may include circuits such as a dimming circuit and a color adjusting circuit, or may be configured to have a timer function and receive remote control signals.
The control circuit performs fluctuation control on the first secondary irradiation unit 1051a and the second secondary irradiation unit 1051b. may That is, when two or more types of LED elements are provided, fluctuation control may be performed for one or more types of LED elements.

A lighting device 1 base 3 main light source section 5 sub light source section 7 power supply section 31 main emission unit 51 sub emission unit 53 reflector 55 optical control member 72 attachment section 511 wiring body 513 LED element

Claims (7)

a base that is detachably installed on an installation surface via a mounting portion;
a main irradiation unit arranged on the side opposite to the installation surface of the base and irradiating the side opposite to the installation surface;
a secondary irradiation unit in which a light emitting element is mounted on a wiring body,
The wiring body is supported by the base in a state orthogonal to the direction of gravity ,
The secondary irradiation unit includes a reflector for reflecting the light emitted from the light emitting element toward the installation surface to the outside of the light emitting element, and a part of the light reflected by the reflector to the installation surface. An optical control member for reflecting to the side is provided at a distance,
The base, the reflector, and the optical control member are separate bodies.
lighting device. The reflector faces the light emitting element on the installation surface side ,
The optical control member is arranged outside the base relative to the reflector.
The lighting device according to claim 1 . 3. The illumination device according to claim 1 , wherein the optical control member has, in cross section, a curved portion that approaches the installation surface side as the distance from the center of the base increases to the outside . The lighting device according to any one of claims 1 to 3, wherein the wiring body comprises a plurality of independent conductive pieces each made of a metal plate and spaced apart from each other. The light-emitting element includes two or more types of light-emitting elements with different emission colors,
The wiring body includes two or more wiring bodies corresponding to the light emitting elements of each emission color,
The lighting device according to claim 4, further comprising a power supply unit that supplies lighting power corresponding to each emission color to each of the two or more types of light emitting elements. The lighting device according to claim 5, wherein the two or more types of light-emitting elements include light-emitting elements emitting blue light. The lighting device according to claim 5 or 6, wherein the power supply unit performs fluctuation control on one or more types of light emitting elements among the two or more types of light emitting elements.

Images