JP6631071B2 - Lighting equipment - Google Patents

Description

  The present disclosure relates to lighting devices.

  There has been proposed a light emitting unit in which an LED package and a cover for fixing an optical member are screwed to a base material (see Patent Document 1).

JP 2012-3999 A

  However, in the above-mentioned conventional light emitting unit, when the LED package is screwed to the base material, the LED package rotates due to the tolerance of the through hole through which the screw is inserted, and the positional relationship between the LED package and the cover deviates from the intended positional relationship. As a result, the positional relationship between the LED package and the optical member may be shifted.

  The above problem can be solved, for example, by means disclosed below.

  A light-emitting device including a mounting member, a light source unit, and a first penetrating portion penetrating a pair of opposing ends from the upper surface to the lower surface; a reflector or a lens having rotational symmetry in a top view; A pair of abutting members having a penetrating portion and abutting on a pair of side surfaces on a pair of end portions of the light emitting device, the first penetrating portion and the second penetrating portion are inserted, and the light emitting device and the contact member are separated. An illumination device comprising: a pair of fixing members fixed to a mounting member, wherein a center of the reflector or the lens and a light emission center of the light source unit match in a top view.

  According to the illumination device described above, since the light emitting device is held by the contact member when the contact member comes into contact with the light emitting device, rotation of the light emitting device when the light emitting device is fixed to the mounting member is suppressed. Therefore, it is possible to provide an illumination device with excellent optical controllability in which the center of the reflector or the lens and the emission center of the light source unit match in top view.

FIG. 2 is a schematic perspective view of the lighting device according to the first embodiment. FIG. 2 is a schematic exploded perspective view of the lighting device according to the first embodiment. FIG. 2 is a schematic exploded perspective view of the light emitting device according to the first embodiment. It is the figure which expanded the part enclosed with the broken line in FIG. 2A. FIG. 2 is a schematic perspective view of the reflector according to the first embodiment. It is AA sectional drawing in FIG. 3A. FIG. 2 is a schematic top view of the reflector according to the first embodiment. FIG. 2 is a schematic bottom view of the reflector according to the first embodiment. FIG. 3 is a schematic perspective view of the contact member according to the first embodiment. It is a typical perspective view showing signs that a light emitting device and a contact member are being fixed by a fixing member. It is a typical top view showing signs that a light emitting device and a contact member are being fixed by a fixing member. FIG. 9 is a schematic top view of the lighting device according to the second embodiment. FIG. 9 is a schematic top view of a lighting device according to a third embodiment. It is BB sectional drawing in FIG. 7A. FIG. 14 is a schematic top view of a lighting device according to Embodiment 4. It is CC sectional drawing in FIG. 8A.

[Illumination device according to Embodiment 1]
FIG. 1A is a schematic perspective view of the lighting device according to the first embodiment, and FIG. 1B is a schematic exploded perspective view of the lighting device according to the first embodiment. As illustrated in FIGS. 1A and 1B, the lighting device 1 according to the first embodiment includes a mounting member 10, a light source unit 22, and a first penetrating part 24 penetrating from a top surface to a bottom surface at a pair of opposed ends. , A reflector 30 having rotational symmetry in a top view, and a pair of abutting members having a second penetrating portion 42 and abutting on a pair of end side surfaces of the light emitting device 20. 40, and a pair of fixing members 50 that penetrate the first penetrating portion 24 and the second penetrating portion 42, and fix the light emitting device 20 and the contact member 40 to the mounting member 10. This is a lighting device in which P and the light emission center Q of the light source unit 22 match in a top view. Hereinafter, each member used in the lighting device according to the present embodiment will be described in detail.

(Lighting device 1)
The lighting device 1 is used for, for example, a road light, a sign light, a floodlight, or a high ceiling light.

(Mounting member 10)
The mounting member 10 is a member for mounting the light emitting device 20 and the contact member 40, and has a fixing hole R (eg, a screw hole) for fixing the light emitting device 20 and the like. The mounting member 10 is preferably made of a material having excellent heat conductivity. For example, a metal plate, more specifically, a material obtained by sheet metal processing of a metal material such as an aluminum alloy, stainless steel, iron, or copper, or a material obtained by subjecting an aluminum alloy to extrusion or casting to be subjected to painting or alumite treatment, etc. It can be used as the mounting member 10. Further, a member made of a resin material, a ceramic substrate, a glass epoxy substrate, a printed wiring board, or the like can be used as the inexpensive mounting member 10.

  The mounting member 10 preferably has a plurality of protrusions (fins) on its outer surface, and preferably has an air-cooled fan inside the mounting member 10. With this configuration, heat generated from the light emitting device 20 can be efficiently dissipated.

(Light emitting device 20)
FIG. 2A is a schematic exploded perspective view of the light emitting device according to the first embodiment, and FIG. 2B is an enlarged view of a portion surrounded by a broken line in FIG. 2A. As shown in FIGS. 2A and 2B, the light emitting device 20 has a light source unit 22 and a first penetrating part 24. The light emitting device 20 is fixed to the mounting member 10 by a fixing member 50 inserted through the first penetrating portion 24.

(Light source unit 22)
The outer shape of the light source section 22 preferably has rotational symmetry in a top view, and specifically, preferably has a rectangular shape or a circular shape. When the outer shape of the light source unit 22 has rotational symmetry in a top view, the center of the rotational symmetry of the light source unit 22 is the emission center of the light source unit 22.

  The light source unit 22 includes, for example, a plurality of light emitting elements, a circuit board on which the plurality of light emitting elements are mounted, a package for accommodating the plurality of light emitting elements and the circuit board, and the like. The plurality of light emitting elements are arranged in a matrix on a circuit board, for example.

The light-emitting element, for example, nitride semiconductor _{(In X Al Y Ga 1-} X-Y N, 0 ≦ X, 0 ≦ Y, X + Y ≦ 1) blue light which is manufactured using the (wavelength 430nm~490nm A light-emitting element that emits light can be used. However, the component composition, emission color, size, and the like of the light-emitting element are not limited thereto, and can be appropriately selected depending on the purpose. As the package, a resin package, a ceramic package, or the like can be used.

  The light emitting element has a p electrode and an n electrode. Both the p-electrode and the n-electrode may be arranged on the same surface side, or may be arranged separately on the upper surface side and the lower surface side (so-called upper and lower surface electrodes). In the former arrangement, the light emitting elements are electrically connected to the circuit board by, for example, a flip chip method or wire bonding. On the other hand, in the latter arrangement, for example, the lower electrode is die-bonded to the circuit board via a conductive bonding member, and the upper electrode is wire-bonded to the circuit board via a wire.

  The circuit board has wirings electrically connected to the plurality of light emitting elements, positive and negative electrodes 222 and 224 electrically connected to a power supply cable, and the like. The wiring is connected to the positive and negative electrodes 222 and 224. The power supplied from the power supply cable is supplied to the plurality of light emitting elements via the positive and negative electrodes 222 and 224 and the wiring. The power supply cable may be connected to the positive and negative electrodes 222 and 224 using a joining member such as solder, but is preferably connected by a simple method such as inserting a connector. According to a simple method such as a connector, a large-scale facility such as a reflow furnace is not required, and the power supply cable can be easily connected to the positive and negative electrodes 222 and 224 by hand.

The light emitting element is not particularly limited, but may be coated with a light transmitting resin containing a fluorescent substance. As the fluorescent material, various known fluorescent materials can be used in consideration of the wavelength of light emitted from the light emitting element, the color of light to be extracted from the light emitting device 20, and the like. Specifically, yttrium aluminum garnet (YAG) activated with cerium, lutetium aluminum garnet (LAG) activated with cerium, nitrogen-containing calcium aluminosilicate activated with europium and / or chromium (CaO- Al ₂ O ₃ —SiO ₂ ), silicate activated by europium ((Sr, Ba) ₂ SiO ₄ ), β-sialon phosphor, KSF-based phosphor (K ₂ SiF ₆ : Mn) and the like are preferably used as the phosphor. be able to.

  The fluorescent substance may be dispersed throughout the translucent resin, or may be settled around the light emitting element. The fluorescent substance may be provided by bonding a plate material containing the fluorescent substance to the upper surface of the translucent resin. Further, the fluorescent substance may be provided on the upper surface of the translucent resin by spray coating or the like.

  The light-transmitting resin protects the light-emitting element. The light-transmitting resin is formed using a known material that can transmit light from the light-emitting element and light from the fluorescent substance. The translucent resin may be provided by forming a resin frame and filling the inside thereof.

(1st penetration part 24)
The first penetrating portion 24 penetrates a pair of opposing ends from the upper surface to the lower surface. The pair of opposite ends is a pair of ends of the light emitting device 20 (for example, when the light emitting device 20 has an insulating case 26, a pair of ends of the case 26; the same applies hereinafter). There are left and right ends and upper and lower ends of the light emitting device 20, for example. In the present embodiment, it is assumed that the first penetrating portion 24 is provided at the left and right ends of the light emitting device 20.

  The first penetration portion 24 preferably has an insertion portion 242 through which the fixing member 50 is inserted, and a storage portion 244 wider than the insertion portion 242. When the fixing member 50 is a screw, the housing part 244 only needs to be able to house at least a part of its head, and more preferably it is possible to house all of the head. When all of the head is accommodated, the upper end of the head of the screw is located below the upper surface of the light emitting device 20. By doing so, it is possible to prevent light emitted laterally from the light source unit 22 from being incident on the fixing member 50 and being absorbed, so that the light extraction efficiency of the light emitting device 20 can be improved. .

  The first penetrating portion 24 and the second penetrating portion 42 may have a top view shape (eg, a polygon, a circle, or a combination of these shapes in a top view) through which the fixing member 50 can be inserted. It is preferable that the shape of one of the first through portion 24 and the second through portion 42 in a top view is a U-shape (in other words, a long hole). In this case, even when the mounting member 10 expands due to thermal expansion and the contact member 40 moves in a direction approaching or moving away from the light emitting device 20, the fixing member 50 is in the first through portion 24 or Since the light-emitting device 20 moves in the second through portion 42, it is possible to prevent the light-emitting device 20 from being damaged due to stress.

  The first penetrating portion 24 (the penetrating portion 242 when having the penetrating portion 242; hereinafter the same in this paragraph) preferably has a larger diameter than the second penetrating portion 42, and specifically, the second penetrating portion. It is preferably about 1.1 to 1.3 times the diameter of the portion 42. More specifically, for example, when an M3 screw is used as the fixing member 50, the diameter of the first through portion 24 is set to about 3.5 mm, and the diameter of the second through portion 42 is set to about 3.2 mm. It is preferable that the diameter of the first penetrating portion 24 is slightly larger than a generally designed size (generally, the diameter of the hole into which the M3 screw is inserted is about 3.2 mm). . With this configuration, the first penetrating portion 24 and the second penetrating portion 42 can be easily overlapped in a top view, so that the fixing member 50 can be easily attached. Further, it is possible to prevent the light emitting device 20 from being damaged due to the fixing member 50 coming into contact with the insertion portion 242 of the first penetrating portion 24. Even if the diameter (tolerance) of the first penetration portion 24 is increased, the posture of the light emitting device 20 is maintained because the contact member 40 sandwiches the side surface of the light emitting device 20. Therefore, even if the diameter (tolerance) of the first penetrating portion 24 is increased, the position, posture, and the like of the light emitting device 20 do not shift, and the accuracy of the positional relationship between the light emitting device 20 and the contact member 40 is impaired. There is no.

  The light emitting device 20 preferably has an insulating case 26 having a concave portion X in which the light source unit 22 is arranged. With this configuration, the light source unit 22 can be positioned using the concave portion X. Further, as compared with the case where the light source unit 22 (light emitting element or circuit board) is directly disposed on the mounting member 10, the creepage distance from the mounting member 10 to the light emitting element and the circuit board can be secured.

  As the case 26, it is preferable to use a member that can play a role as a housing, can ensure the withstand voltage, and has relatively high thermal conductivity among insulating materials. In addition, it is preferable to use a member having high heat resistance and low coefficient of thermal expansion for the case 26. Examples of such a material include ceramics, more specifically, alumina, aluminum nitride, silicon nitride, silicon carbide, and the like.

  It is preferable that the inner shape of the concave portion X is substantially the same as the outer shape of the light source unit 22. With this configuration, the light source unit 22 can be firmly held by the inner wall of the concave portion X.

  The pair of end side surfaces of the light emitting device 20 preferably have a plurality of surfaces having different directions (normal directions). With this configuration, the contact surface of the contact member 40 (the surface that comes into contact with the light emitting device 20; the same applies hereinafter) is formed along a plurality of surfaces, so that the light emitting device 20 can be seen from a plurality of different directions. Can be held. Therefore, it is possible to effectively prevent the light emitting device 20 from moving and shifting from a predetermined position when the light emitting device 20 is fixed to the mounting member 10.

  It is preferable that the upper surface height of the light emitting device 20 be higher than the upper surface height of the contact member 40. With this configuration, the light output from the light source unit 22 can be extracted to the outside of the light emitting device 20 without being disturbed by the contact member 40. Therefore, it is possible to provide an illuminating device suitable for an illuminating device that requires a wide light distribution (for example, an illuminating device for an outdoor light arranged on a road).

(Reflector 30)
3A is a schematic perspective view of the reflector according to the first embodiment, FIG. 3B is a cross-sectional view taken along the line AA in FIG. 3A, and FIG. 3C is a schematic top view of the reflector according to the first embodiment. 3D is a schematic bottom view of the reflector according to the first embodiment. As shown in FIGS. 3A to 3D, the reflector 30 has rotational symmetry in a top view. It is not necessary for the top view of the entire reflector 30 to have rotational symmetry, and it is sufficient that the top view of the portion of the reflector 30 that contributes to the light distribution has rotational symmetry. Specifically, when the reflection surface of the reflector 30 (the inner surface of the reflector 30 illustrated in FIG. 3B) is a portion that contributes to the light distribution of the reflector 30, the top view shape of the reflection surface has rotational symmetry. You only need to have it. The center of rotational symmetry of a portion of the reflector 30 that contributes to light distribution is the center of the reflector 30.

  The reflector 30 has an entrance port 38 into which light from the light source unit 22 enters as shown in FIG. 3D. The area of the upper surface of the light source unit 22 with respect to the area of the entrance 38 of the reflector 30 is 50% or more, preferably 70% or more, more preferably 80% or more. By doing so, it is possible to suppress the light emitted from the light source unit 22 from leaking in a direction other than the entrance 38, and to provide a lighting device with good light extraction. Further, the light emitted from the light source unit 22 can be collected at the entrance 38, and the light intensity near the center of the reflector 30 can be increased.

  As the reflector 30, for example, a cylindrical reflector, a rotationally symmetric parabolic reflector, or the like can be used. In this embodiment, a rotationally symmetric parabolic reflector is used for the reflector 30.

  The reflector 30 has, below the outer surface thereof, a locking portion 36 having an L-shaped cross section when locked to the locking portion 44 of the contact member 40. More specifically, it has a fitting portion 362 that fits into the locking portion 44 of the contact member 40 and a protrusion 364. The fitting portion 364 is a portion fitted into the U-shaped (in other words, hook-shaped) locking portion 44 of the contact member 40 when the reflector 30 is rotated. It is a part having a role of a stopper for stopping the rotation at a desired position.

(Contact member 40)
FIG. 4 is a schematic perspective view of the contact member according to the first embodiment. As shown in FIG. 4, the contact member 40 has a second penetrating portion 42. The contact member 40 is fixed to the mounting member 10 by a fixing member 50 inserted through the second penetrating portion 42.

  The pair of contact members 40 contact the side surfaces of the light emitting device 20 on the pair of end sides. Thereby, the light emitting device 20 is held by the pair of contact members 40, and when the light emitting device 20 is fixed to the mounting member 10, the light emitting device 20 is prevented from moving and being displaced from a predetermined position.

  Preferably, the second penetrating portion 42 is located above the first penetrating portion 24. In this way, when a member having a round head such as a round screw is used as the fixing member 50, the contact member 40 can function as a washer. That is, when fixing the light emitting device 20 and the contact member 40 to the mounting member 10, the first penetrating portion 24 is provided at a peripheral portion of the second penetrating portion 42 (having an area larger than the area of the screw head). Can be pressed, there is no stress concentration or the like on the peripheral portion of the first penetrating portion 24. Further, the peripheral portion of the first penetrating portion 24 is evenly pressed. Therefore, for example, even when the peripheral portion of the first penetrating portion 24 is made of a material that is easily broken, it is possible to suppress the occurrence of breakage or cracks in the peripheral portion of the first penetrating portion 24. Further, since the pressing force by the fixing member 50 is easily transmitted to the entire light emitting device 20, the fixing of the light emitting device 20 to the mounting member 10 is stabilized.

  Preferably, the contact member 40 has a locking portion 44 for locking the reflector 30. In this way, by providing the locking portion 36 on the reflector 30, the reflector 30 can be firmly fixed to the contact member 40. Therefore, even when the top view of the reflector 30 is not circular, but has a directional shape such as a cylindrical reflector, the reflector 30 is locked at a desired position, and the reflector 30 emits light. It is possible to suppress a loss of an optical action due to a displacement between the device 20 and the contact member 40.

  The locking portion 44 of the contact member 40 has a U-shape in cross section (in other words, a hook shape) at an end of the upper surface of the contact member 40 opposite to the second penetrating portion 42. I have. The locking portion 44 of the contact member 40 is locked to the locking portion 36 of the reflector 30 by, for example, rotating the reflector 30. Note that the method of locking the locking portion 36 of the reflector 30 and the locking portion 44 of the contact member 40 is not a method of locking by rotation, but the method of locking the locking portion 36 of the reflector 30 with the contact member 40. It is also possible to use a method of inserting and locking into the stop portion 44 or another method. Each locking portion 44 of the pair of contact members 40 is arranged on a concentric circle centered on the center of the reflector 30. When one contact member 40 has a plurality of locking portions 44 as shown in FIG. 4, the plurality of locking portions 44 are arranged on one concentric circle centered on the center of the reflector 30. Is preferred.

  The contact member 40 is preferably a metal fitting. The metal fitting has high strength because it is made of metal. Therefore, if a metal fitting is used for the contact member 40, it is possible to effectively prevent the light emitting device 20 from moving and shifting from a predetermined position when the light emitting device 20 is fixed to the mounting member 10. Furthermore, since the metal fitting has a better heat radiation property than the resin, it is possible to prevent the heat from the light emitting device 20 from expanding or deforming itself and affecting the positional accuracy.

  The contact surfaces of the pair of contact members 40 apply stress in the vertical direction (the short direction of the case 26 shown in FIG. 2A) and the horizontal direction (the long direction of the case 26 shown in FIG. 2A) of the light emitting device 20. When the outer shape of the light emitting device 20 is substantially rectangular, four sides (two sides perpendicular to the longitudinal direction and two sides perpendicular to the lateral direction) of the light emitting device 20 are preferable. It is preferable that the shape is such that stress can be applied thereto. With this configuration, it is possible to suppress the light emitting device 20 (the light source unit 22) from being displaced in the vertical direction or the horizontal direction. Specifically, as shown in FIG. 4, by bending the contact surface in an L-shape when viewed from above, stress can be applied in the vertical direction and the horizontal direction of the light emitting device 20. If the contact surface is bent in this manner, the size of the contact surface can be reduced, so that the lighting device can be made compact.

(Fixing member 50)
5A is a schematic perspective view showing a state where the light emitting device and the contact member are fixed by a fixing member, and FIG. 5B is a schematic top view showing a state where the light emitting device and the contact member are fixed by the fixing member. FIG. As shown in FIGS. 5A and 5B, the fixing member 50 penetrates the first penetrating portion 24 and the second penetrating portion 42, and fixes the light emitting device 20 and the contact member 40 to the mounting member 10. The fixing member 50 is shared by the light emitting device 20 and the contact member 40, and the light emitting device 20 and the contact member 40 are fixed to the mounting member 10 using the same fixing member 50. As shown in FIG. 5A, the light emitting device 20 and the contact member 40 are fixed by two fixing members 50.

  The fixing member 50 is preferably a screw. In this case, the fixing hole R corresponding to the fixing member 50 provided on the mounting member 10 is a screw hole, and the screw hole is shared by the light emitting device 20 and the contact member 40, and the light emitting device 20 and the contact member 40 are the same. It is fixed to the mounting member 10 with screw holes (two in total). According to the present embodiment, the displacement of the light emitting device 20 and the reflector 30 due to the tolerance of the screw holes can be suppressed as compared with the light emitting unit in which the light emitting device 20 and the contact member 40 are fixed by separate screw holes. The head shape of the screw may be any of a pan (flat) plate, a round plate, a truss, and a low head, and the hole on the top surface of the screw may be any of a cross hole, a slot (minus), and a hexagonal hole. The screw is preferably made of metal such as stainless steel or nickel chrome steel, but may be made of resin.

  According to the lighting device 1 according to the first embodiment described above, the light emitting device 20 is held by the contact member 40 by the contact member 40 abutting on the light emitting device 20, so that the light emitting device 20 is mounted on the mounting member 10. When the light emitting device 20 is fixed, it is possible to prevent the light emitting device 20 from moving and shifting from a predetermined position. Therefore, it is possible to provide an illumination device with excellent optical controllability in which the center P of the reflector 30 and the light emission center Q of the light source unit 22 match in a top view. Note that “match” means that the center of the reflector 30 (or a lens such as a cylindrical lens 60 or a batwing lens 70 described later) and the light emission center of the light source unit 22 completely match, and that the distance between the centers is different. The case where it is less than 200 μm, preferably the case where it is less than 100 μm, and more preferably the case where it is less than 50 μm are included.

[Lighting device according to Embodiment 2]
FIG. 6 is a schematic top view of the lighting device according to the second embodiment. In FIG. 6, illustration of parts other than the reflector 30 and the contact member 40 is omitted or simplified as appropriate in order to facilitate understanding. Also, with respect to the reflector 30 and the abutting member 40, illustration of portions that are not necessary for explanation is omitted or simplified as appropriate. As shown in FIG. 6, the pair of contact members 40 may be a part of the reflector 30. In this case, a portion extending from the inner surface of the reflector 30 toward the light emitting device 20 and contacting the side surface of the light emitting device 20 corresponds to the contact member 40. Even in this case, since the light emitting device 20 is held by the contact member 40 by the contact member 40 abutting on the light emitting device 20, the light emitting device 20 moves when the light emitting device 20 is fixed to the mounting member 10. Thus, it is possible to prevent a deviation from a predetermined position.

[Lighting Device According to Third Embodiment, Lighting Device According to Fourth Embodiment]
The lighting device may include a lens instead of the reflector 30. In the case of a lens, the lens has rotational symmetry when viewed from above, that is, the top view shape of a portion (eg, an outer surface) of the lens that contributes to light distribution has rotational symmetry. The center of rotational symmetry of a portion of the lens that contributes to light distribution is the center of the lens. As the lens, for example, a convex lens (eg, a collimating lens, a condenser lens), a concave lens, or the like can be used. In addition, a cylindrical lens 60 shown in FIGS. 7A and 7B, a batwing lens 70 shown in FIGS. Can be used. In FIGS. 7A to 8B, illustration of parts that are not necessary for explanation is omitted or simplified as appropriate for easy understanding.

  A concave portion (for example, the concave portion 62 of the cylindrical lens 60, the concave portion 72 of the batwing lens 70) is provided on the bottom surface of the lens, and the light emitting device 20 is surrounded by the inner wall of the concave portion (the inner surface of the lens) in the concave portion. It is arranged as follows. The lens preferably has a locking portion (eg, locking portion 66 of cylindrical lens 60, locking portion 76 of batwing lens 70) on the outer surface. By doing so, the locking portion of the lens can be locked to the locking portion 44 of the contact member 40, and the lens can be fixed to the contact member 40. As in the case of the reflector 30, the specific mode of the locking method is not limited.

  The embodiments have been described above, but these descriptions do not limit the configurations described in the claims.

DESCRIPTION OF SYMBOLS 1 Illumination device 10 Mounting member 20 Light emitting device 22 Light source part 222 Positive electrode 224 Negative electrode 24 First penetration part 242 Insertion part 244 Housing part 26 Case 30 Reflector 36 Lock part 362 Fitting part 364 Projection part 38 Inlet 40 Contact member 42 Second penetrating portion 44 Locking portion 50 Fixing member 60 Cylindrical lens 62 Recess 66 Locking portion 70 Batwing lens 72 Recess 76 Locking portion P Center of lens or reflector Q Light emission center X of light source portion Recess R fixed hole

Claims (11)

Mounting members,
A light emitting device comprising: a light source unit; and a first penetrating portion penetrating a pair of opposed ends from the upper surface to the lower surface,
A reflector or lens having rotational symmetry in top view,
A pair of abutting members having a second penetrating portion and abutting against a pair of end side surfaces of the light emitting device;
A pair of fixing members that penetrate the first penetrating portion and the second penetrating portion and fix the light emitting device and the contact member to the mounting member;
The contact surface of the contact member is planar,
A lighting device in which the center of the reflector or the lens and the light emission center of the light source unit match in a top view.   The lighting device according to claim 1, wherein the fixing member is a screw.   The lighting device according to claim 1, wherein the second penetrating portion is located above the first penetrating portion. The light emitting device has an insulating case having a concave portion,
The lighting device according to claim 1, wherein the light source unit is disposed in the recess. A pair of end side surfaces of the light emitting device have a plurality of surfaces in different directions,
The lighting device according to claim 1, wherein a contact surface of the contact member has a shape along the plurality of surfaces. The lighting device according to claim 1, wherein an upper surface height of the light emitting device is higher than an upper surface height of the contact member. The lighting device according to any one of claims 1 to 6, wherein a top view of one of the first penetrating portion and the second penetrating portion is U-shaped. The lighting device according to any one of claims 1 to 7, wherein the first penetrating portion has a larger diameter than the second penetrating portion. The lighting device according to any one of claims 1 to 8, wherein the contact member is a fitting. The lighting device according to any one of claims 1 to 9, wherein the contact member has a locking portion that locks the reflector or the lens. The lighting device according to any one of claims 1 to 9, wherein the pair of contact members are part of the reflector or the lens.

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