JP2017004823A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture optical members of which can be suppressed from separating.SOLUTION: A lighting fixture 1 includes: a lamp body 10; a translucent optical member 30 into which light emitted from the lamp body 10 is made incident; and a cylindrical frame body 40 having an incident opening part 411 into which the light emitted from the optical member 30 is made incident, and a light emission opening part 412 from which the light incident from the incident opening part 411 is emitted. The lamp body 10 includes: a fixture body 11; a light source 12 attached to the fixture body 11; and a reflection member 16 reflecting the light from the light source 12 toward the optical member 30. The lamp body 10 is provided with a first locking part 166 for locking the optical member 30. The optical member 30 is provided with a first locked part 311. The optical member 30 is supported by the lamp body 10 because the first locked part 311 is locked to the first locking part 166. When seeing the optical member 30 in a light axis J direction of the light source 12, at least part of the outer edge 315 of the optical ember is located at the outside of the incident opening part 411.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a luminaire including a light-transmitting optical member.

  Conventionally, as a lighting fixture, for example, a ceiling-embedded lighting fixture that is embedded in a mounted portion such as a ceiling and emits light downward is known (for example, Patent Document 1). .

  The lighting fixture disclosed in Patent Document 1 includes a light source composed of LEDs (Light Emitting Diode), a reflecting member that reflects light emitted from the light source in a predetermined direction on a reflection surface of the inner surface, and a light source from the light source. A translucent optical member that controls light distribution. Furthermore, the lighting fixture disclosed in Patent Document 1 includes a fixture body that supports the light source and the reflecting member. The reflecting member is a cylindrical member having an incident opening through which light from a light source is incident and an output opening through which incident light is emitted. An optical member is arrange | positioned at the output opening part of a reflection member, and controls the light distribution of a lighting fixture.

Japanese Patent Laying-Open No. 2015-088349

  In the lighting fixture disclosed in Patent Document 1, the reflecting member includes a locking claw for locking the lens. Thereby, a lens can be easily attached to a reflecting member.

  However, in the lighting fixture disclosed in Patent Document 1, it has been found that a component such as a lens may be detached (dropped) in a state of being attached to a mounted portion such as a ceiling.

  As a result of studying the cause, the inventors have formed a locking claw for locking the lens with resin, so that vibrations during transportation of the lighting fixture, stress received during construction work of the lighting fixture, etc. As a result, it has been found that the locking claws may be damaged. Furthermore, the inventors have also found that the locking portion may be damaged due to aging deterioration of the resin as the life of the lighting fixture is extended due to the use of the LED as the light source.

  Then, this invention provides the lighting fixture which can suppress detachment | leave of an optical member.

  In order to solve the above problems, an aspect of a lighting fixture according to the present invention includes a lamp body, a translucent optical member into which light emitted from the lamp body is incident, and light emitted from the optical member. The lamp body includes an incident opening, and a cylindrical frame having an output opening from which light incident from the incident opening is emitted. The lamp body includes a fixture body and a light source attached to the fixture body. And a reflecting member that reflects light from the light source toward the optical member, the lamp body is provided with a first locking portion that locks the optical member, and the optical member has a first locked portion. The optical member is supported by the lamp body by the first locked portion being locked to the first locking portion, and the optical member is obtained when the optical member is viewed in the optical axis direction of the light source. At least a part of the outer edge is located outside the entrance opening.

  ADVANTAGE OF THE INVENTION According to this invention, the lighting fixture which can suppress detachment | leave of an optical member can be provided.

FIG. 1 is a perspective view illustrating an appearance of a lighting apparatus according to an embodiment. FIG. 2 is an exploded perspective view of the lighting fixture according to the embodiment. FIG. 3 is a cross-sectional view of the lighting fixture according to the embodiment. FIG. 4 is an enlarged view of a main part of a cross section of the lighting apparatus according to the embodiment. FIG. 5 is a perspective view illustrating a locking configuration between the attachment member and the reflection member according to the embodiment. FIG. 6 is a perspective view showing a state in which the optical member is locked to the reflecting member according to the embodiment. FIG. 7 is a plan view of the state in which the optical member is locked to the reflecting member according to the embodiment as seen from the optical axis direction. FIG. 8 is a cross-sectional view of the reflecting member and the optical member according to the embodiment.

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

  Each figure is a schematic diagram and is not necessarily illustrated strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, The overlapping description is abbreviate | omitted or simplified.

(Embodiment)
[1. Constitution]
First, the structure of the lighting fixture which concerns on embodiment is demonstrated using FIGS.

  FIG. 1 is a perspective view showing an appearance of a lighting fixture 1 according to the present embodiment.

  FIG. 2 is an exploded perspective view of the lighting fixture 1 according to the present embodiment.

  FIG. 3 is a cross-sectional view of the lighting fixture 1 according to the present embodiment.

  FIG. 4 is an enlarged view of a main part of a cross section of the lighting fixture 1 according to the present embodiment. FIG. 4 is an enlarged view of the inside of the broken line frame of the cross-sectional view shown in FIG.

  As illustrated in FIGS. 1 to 4, the lighting fixture 1 includes a lamp body 10, an optical member 30, and a frame body 40. The lamp body 10 mainly includes an instrument body 11, a light source 12, an attachment member 13, a connection member 14, and a reflection member 16. Hereinafter, each component of the lighting fixture 1 is demonstrated.

[1-1. Instrument body]
The instrument body 11 is a member that supports the light source 12 inside. In the present embodiment, the instrument body 11 is a mounting base to which the light source 12 is attached. The instrument body 11 includes an attachment part 110a, a cylindrical part 110b, and a plurality of fins 111.

  The attachment part 110a is a trapezoidal part to which the light source 12 is attached. The cylindrical part 110 b is a cylindrical part provided on the periphery of the attachment part 110 a and surrounds the light source 12. A frame body 40 is attached to the negative side in the Y-axis direction of the cylindrical portion 110b. The frame body 40 is fastened to the instrument body 11 using screws 50. Specifically, a screw hole (not shown) is provided at the Y axis direction positive side end portion of the frame body 40, and the head portion of the screw 50 screwed into the screw hole and the frame body 40. The instrument body 11 is sandwiched. Thereby, the frame body 40 is fastened to the instrument main body 11. The plurality of fins 111 are portions that radiate heat generated by the light source 12. The plurality of fins 111 are formed on the Y axis direction positive side of the attachment portion 110a.

  The instrument body 11 is formed using a metal material. The instrument body 11 is formed through, for example, an aluminum die casting process.

[1-2. light source]
The light source 12 is a light emitting module having LEDs, and is an LED light source that emits predetermined light radially. The light source 12 is configured to emit white light, for example. The light source 12 includes a COB (Chip On Board) type LED, a base 120, a plurality of LEDs 121 that are bare chips (LED chips) mounted on the base 120, and the LEDs 121 are sealed to form a phosphor. And a sealing member. In the present embodiment, the sealing member collectively seals all the LEDs 121, but the configuration of the sealing member is not limited to this. It is good also as a structure which forms a sealing member in the shape of a plurality of lines along the arrangement direction of LED121 arranged in the shape of a line.

  The light source 12 is attached to the attachment part 110 a of the instrument body 11. 1-4, the optical axis J of the light source 12 is the vertical direction (Y-axis direction in the figure).

  The base 120 is a mounting substrate for mounting the plurality of LEDs 121, and is, for example, a ceramic substrate, a resin substrate, an insulating-coated metal base substrate, or the like. Moreover, the base 120 is plate shape which has a plane which is a rectangular shape in planar view, for example, The bottom face (upper side of FIG. 2) of the base 120 is attached to the instrument main body 11, and is fixed. Although not shown, the base 120 is formed with a pair of electrode terminals (a positive electrode terminal and a negative electrode terminal) for receiving DC power from outside for causing the LED 121 (light source 12) to emit light.

[1-3. Reflective member]
The reflecting member 16 is a member that reflects light from the light source 12 toward the optical member 30. The reflecting member 16 has a substantially cylindrical shape in which an opening 160 is formed. The reflecting member 16 includes a central portion 161, a flange portion 162, and a standing portion 163.

  As shown in FIG. 4, the central portion 161 is configured such that the inner diameter gradually increases from the end on the side where the light from the light source 12 is incident toward the end on the side where the light is emitted. It has a substantially cylindrical shape. Light from the light source 12 is reflected on the inner surface of the central portion 161.

  The flange portion 162 is provided at an end portion of the central portion 161 on the side from which light is emitted, and has a substantially annular shape. The optical member 30 is disposed on the flange portion 162. With this arrangement, the light emitted from the reflecting member 16 enters the optical member 30. The flange portion 162 is provided with a first locking portion (not shown in FIGS. 1 to 4) for locking the optical member 30. On the other hand, the optical member 30 is provided with a first locked portion, and the optical member 30 is attached to the lamp body 10 by the first locked portion being locked to the first locking portion of the reflecting member 16. Supported. The first locking portion and the first locked portion will be described in detail later.

  The standing portion 163 is disposed on the light source 12 side of the flange portion 162 and is erected substantially in the optical axis J direction (Y-axis direction). The standing portion 163 is provided with a second locked portion 164 that is locked to the attachment member 13. In the present embodiment, the second locked portion 164 is a through hole provided in the standing portion 163.

  The reflecting member 16 can be formed using a hard white resin material such as polybutylene terephthalate (PBT) or polycarbonate.

[1-4. Mounting member]
The attachment member 13 is a member for attaching the light source 12 to the instrument body 11. The attachment member 13 includes a restriction part 130 and a second locking part 131.

  The restricting unit 130 restricts the position of the light source 12 in the direction perpendicular to the optical axis J (X-axis direction and Z-axis direction). The restricting portion 130 has a rectangular frame shape having an opening at the center. The opening formed in the center of the restricting portion 130 has a shape corresponding to the light source 12, and the light source 12 is disposed in the opening. The attachment member 13 is disposed on the attachment portion 110 a of the instrument body 11 and is fixed to the instrument body 11 by the connection member 14 and the screw 15. More specifically, a through hole 132 is formed in the restriction portion 130 of the attachment member 13, and by screwing the screw 15 into a screw hole formed in the instrument body 11 through the through hole 132, The attachment member 13 is fixed to the instrument body 11. Thereby, the attachment member 13 and the light source 12 disposed in the opening thereof are fixed to the instrument body 11.

  The second locking part 131 is a member for supporting the reflecting member 16 and locks the second locked part 164 of the reflecting member 16. In the present embodiment, the attachment member 13 includes two second locking portions 131. The second locking portion 131 has a substantially L-shaped shape, and an inclined surface (protrusion) protruding in the direction away from the optical axis J at the end of the second locking portion 131 is the second locked portion. By being inserted into the part 164, the second locking part 131 locks the second locked part 164.

  The attachment member 13 can be formed using resin materials, such as PBT and a polycarbonate, for example.

[1-5. Connection member]
The connection member 14 is a member to which a wiring (not shown) that supplies current to the light source 12 is connected. The lighting fixture 1 according to the present embodiment includes two connection members 14, one of the connection members 14 is connected to a high potential side wiring, and the other connection member 14 is connected to a low potential side wiring. The connection member 14 is provided with an electrode (not shown) for supplying a current to the light source 12. The electrode is connected to an electrode terminal formed on the light source 12.

  The connecting member 14 also has a function of regulating the position of the light source 12. A through hole through which the screw 15 passes is formed in the connection member 14, and the connection member 14 is fixed to the instrument body 11 and the attachment member 13 by the screw 15 inserted into the through hole. At that time, as shown in FIG. 4, the portion of the connecting member 14 on the optical axis J side regulates the position of the light source 12 in the optical axis direction (Y-axis direction) by pressing the light source 12 toward the instrument body 11. To do.

  The housing of the connection member 14 can be formed using a resin material such as PBT or polycarbonate, for example. The electrode of the connection member 14 can be formed using a conductive member such as copper.

[1-6. Optical member]
The optical member 30 is a translucent member into which light emitted from the lamp body 10 is incident. In the present embodiment, the optical member 30 includes a light distribution control unit 300 and a flange unit 310 as shown in FIGS. 3 and 4.

  The light distribution control unit 300 has a function of controlling and emitting the light distribution of light incident from the reflecting member 16. In the present embodiment, the light distribution control unit 300 includes a Fresnel lens. Further, dimples are formed on at least a part of the light emission surface 301 of the light distribution control unit 300. By diffusing the light emitted from the optical member 30 by the dimples, the illuminance unevenness and the color unevenness of the light emitted from the lighting fixture 1 can be suppressed.

  The flange portion 310 has a function of suppressing the optical member 30 from being detached from the lighting fixture 1. This function will be described in detail later. The flange portion 310 is provided with a first locked portion (not shown in FIGS. 1 to 4). The optical member 30 is supported by the lamp body 10 by the first locked portion being locked by the first locking portion of the reflecting member 16. The first locked portion will be described in detail later.

  The optical member 30 is formed using a translucent material, and can be formed using a transparent resin material such as PMMA (acrylic) or polycarbonate, or a transparent material such as a glass material.

[1-7. Frame]
The frame 40 is a cylindrical member having an incident opening 411 into which light emitted from the optical member 30 is incident and an emission opening 412 from which light incident from the incident opening 411 is emitted. The frame body 40 includes an auxiliary reflecting member 410, a frame main body 420, and an attachment spring 490. FIG. 4 also shows an image 411 a projected onto the flange portion 310 of the optical member 30 when the incident opening 411 is projected in the optical axis J direction. As shown in FIG. 4, at least a part of the optical member 30 is arranged at a position away from the optical axis J from the image 411a.

  The auxiliary reflecting member 410 is a cylindrical member disposed on the inner peripheral surface of the cylindrical frame 40. The auxiliary reflecting member 410 has an auxiliary reflecting surface 413 on the inner side, and has a function of controlling the light distribution of the lighting fixture 1. In the present embodiment, auxiliary reflecting member 410 is formed of a thin metal plate such as aluminum. The auxiliary reflecting member 410 is fixed to the frame main body 420 by caulking the incident opening 411 in the optical axis J direction (Y-axis direction) to the incident opening in the optical axis direction of the frame main body 420.

  The frame main body 420 is a main body portion of the cylindrical frame body 40. The frame body 420 has the same outer diameter as the cylindrical portion 110b of the instrument body 11, and the Y axis direction positive end surface of the frame body 420 is the Y axis direction negative side end surface of the cylinder portion 110b of the instrument body 11. Abutted. A screw hole (not shown) is formed in the end surface on the Y axis direction positive side of the frame main body 420, and the frame main body 420 is fastened to the instrument main body 11 by screwing the screw 50 into the screw hole. The frame body 420 is made of a metal such as aluminum, for example.

  The attachment spring 490 is an elastic member for attaching the luminaire 1 to an attachment portion such as a ceiling. In the present embodiment, as shown in FIGS. 2 and 3, three attachment springs 490 are provided on the outer peripheral surface of the frame main body 420. The attachment spring 490 is made of a metal such as iron, for example.

[2. Locking configuration]
Then, the latching structure between the components of the lighting fixture 1 which concerns on this Embodiment is demonstrated.

[2-1. Locking structure between mounting member and reflecting member]
First, a locking configuration between the attachment member 13 and the reflection member 16 will be described with reference to FIGS. 4 and 5.

  FIG. 5 is a perspective view showing a locking configuration between the attachment member 13 and the reflection member 16 according to the present embodiment.

  As shown in FIGS. 4 and 5, the attachment member 13 is provided with a second locking portion 131 that locks the reflecting member 16. The reflecting member 16 is provided with a second locked portion 164 that is locked to the second locking portion 131. The reflecting member 16 is supported by the mounting member 13 by the second locked portion 164 being locked to the second locking portion 131. Thereby, in this Embodiment, the reflection member 16 can be easily supported by the attachment member 13 without using a fastening member.

  The second locking portion 131 is locked to the second locked portion 164 by a snap method. That is, in a state where the second locking portion 131 is elastically deformed, the second locking portion 131 is moved to the second locked portion 164 to cancel the elastic deformation, whereby the end of the second locking portion 131 is moved to the second locked portion. It is inserted into the part 164. Hereinafter, a procedure for supporting the reflecting member 16 on the mounting member 13 will be specifically described. As shown in FIG. 5, the reflecting member 16 is moved in the direction of the optical axis J of the light source 12 with respect to the attachment member 13 fastened to the instrument main body 11 with the screw 15. Here, as shown in FIG. 4, the two second locking portions 131 provided on the attachment member 13 have inclined surfaces (protrusions) inclined with respect to the optical axis J direction at the ends on the reflecting member 16 side. ) Is formed. The inclined surfaces at the ends of the two second locking portions 131 are further away from the optical axis J as they approach the light source 12. Accordingly, the end portions of the two second locking portions 131 are inserted into the gap between the two standing portions 163 of the reflecting member 16 without interfering with the two standing portions 163. On the other hand, when the two second locking portions 131 are further inserted into the gap between the two standing portions 163 (the reflecting member 16 is further brought closer to the mounting member 13), the two second locking portions 131 The portion protruding in the direction away from the optical axis J interferes with the surface of the two standing portions 163 on the optical axis J side. That is, each second locking portion 131 is pushed toward the optical axis J by the standing portion 163. Therefore, the two second locking portions 131 are elastically deformed in the direction of the optical axis J. The two second locking portions 131 are further inserted into the gap between the two standing portions 163, so that the end portions of the two second locking portions 131 are inserted into the second locked portion 164. . Thereby, the elastic deformation of each 2nd latching | locking part 131 is eliminated. As described above, the second locked portion 164 is locked to the second locking portion 131 by inserting the end portion of the second locking portion 131 into the second locked portion 164. That is, the second locked portion 164 is restrained from moving downward in the vertical direction (negative in the Y-axis direction) with respect to the second locking portion 131.

  As described above, when the second locked portion 164 is locked by the second locking portion 131, it is necessary to elastically deform the second locking portion 131, so that stress is applied to the second locking portion 131. . In addition to such stress, the second locking portion 131 made of resin may be damaged due to stress due to vibration during transportation of the lighting fixture 1, deterioration over time, or the like.

[2-2. Locking configuration between reflecting member and optical member
Next, a locking configuration between the reflecting member 16 and the optical member 30 will be described with reference to FIGS.

  FIG. 6 is a perspective view showing a state in which the optical member 30 is locked to the reflecting member 16 according to the present embodiment.

  FIG. 7 is a plan view of the state in which the optical member 30 is locked to the reflecting member 16 according to the present embodiment as viewed from the optical axis J direction. FIG. 7 shows a plan view of the reflecting member 16 and the optical member 30 as viewed from the Y axis direction negative side. In FIG. 7, an image 411 a projected on the flange portion 310 of the optical member 30 when the incident opening 411 of the frame body 40 is projected in the optical axis J direction is indicated by a broken line.

  FIG. 8 is a cross-sectional view of the reflecting member 16 and the optical member 30 according to the present embodiment. In FIG. 8, the cross section in the VIII-VIII line shown by FIG. 7 is shown.

  As shown in FIGS. 6 to 8, the flange portion 162 of the reflecting member 16 has a restricting portion 165 that restricts the movement of the optical member 30 in the direction perpendicular to the optical axis J (direction perpendicular to the Y axis). The restricting portion 165 is erected on the optical member 30 side (Y-axis direction negative side) in the vicinity of the peripheral edge portion of the flange portion 162. The restricting portion 165 is provided along the outer edge 315 when the optical member 30 is viewed in the optical axis J direction of the light source 12. Accordingly, the outer edge 168 when the reflecting member 16 is viewed in the optical axis J direction has the same shape as the outer edge 315 of the optical member 30.

  The restricting portion 165 has a first locking portion 166 for locking the optical member 30. In the present embodiment, the restricting portion 165 has three first locking portions 166. The optical member 30 is provided with three first locked portions 311 on the surface of the flange portion 310 on the Y axis direction negative side. In the present embodiment, the three first locked portions 311 are concave portions provided on the Y axis direction negative side of the flange portion 310 of the optical member 30. As shown in FIGS. 6 to 8, the three first locked portions 311 are provided at positions corresponding to the three first locked portions 166. The optical member 30 is supported by the lamp body 10 as each first locked portion 311 is locked to the corresponding first locking portion 166. Thereby, in this Embodiment, the optical member 30 can be easily supported by the lamp body 10 without using a fastening member.

  The first locking portion 166 is locked to the first locked portion 311 by a snap method. That is, in a state where the first locking portion 166 is elastically deformed, the first locking portion 166 is moved to the first locked portion 311 to cancel the elastic deformation, whereby the end portion of the first locking portion 166 is moved to the first locked portion. The unit 311 is arranged. Hereinafter, a procedure for supporting the optical member 30 on the reflecting member 16 will be specifically described.

  When the optical member 30 is supported by the reflecting member 16, the optical member 30 is moved in the optical axis J direction of the light source 12 with respect to the reflecting member 16. Here, as shown in FIGS. 6 and 8, the Y-axis direction negative side end portions of the three first locking portions 166 provided on the reflecting member 16 are inclined with respect to the optical axis J direction. An inclined surface (projection) is formed. The inclined surfaces at the Y axis direction negative side end portions of the three first locking portions 166 are closer to the optical axis J as they are closer to the light source 12. Thereby, the Y axis direction positive side end of the flange portion 310 of the optical member 30 is inserted into the portion surrounded by the three first locking portions 166 without interfering with the first locking portions 166. On the other hand, when the optical member 30 is further moved in the direction in which the flange portion 310 of the optical member 30 and the flange portion 162 of the reflecting member 16 are brought closer to each other, the inclined surfaces of the three first locking portions 166 are the optical member 30. Interfering with the outer peripheral surface. That is, each first locking portion 166 is pushed by the optical member 30 in a direction away from the optical axis J. For this reason, the three first locking portions 166 are elastically deformed in a direction away from the optical axis J. When the optical member 30 is further moved by a distance of about the thickness of the flange portion 310 in the Y-axis direction, the inclined surface of each first locking portion 166 causes each first locked portion 311 of the optical member 30 to move. The position to be locked is reached. Thereby, the elastic deformation of each 1st latching | locking part 166 is eliminated.

  As described above, the end of the first locking portion 166 locks the first locked portion 311, so that the optical member 30 is directed downward in the vertical direction with respect to the first locking portion 166 (Y axis). (Moving in the negative direction) is suppressed.

  As described above, when the first locked portion 311 is locked by the first locking portion 166, it is necessary to elastically deform the first locking portion 166. The first locking part 166 made of resin may be damaged.

  In particular, when the optical member 30 is a Fresnel lens, the thickness of the optical member 30 is relatively thick. Therefore, since the weight of the optical member 30 also becomes heavy, the force added to the 1st latching | locking part 166 etc. becomes large. Therefore, the first locking portion 166 and the like are easily damaged.

[3. Optical member detachment suppression configuration]
As described above, the first locking portion 166 and the second locking portion 131 formed of resin may be damaged. In the lighting fixture 1 according to the present embodiment, even when at least one of the first locking portion 166 and the second locking portion 131 is damaged, the optical member 30 and the reflecting member 16 are detached from the lighting fixture 1. It has a configuration that can be suppressed. This configuration will be described with reference to FIGS.

  The image 411a of the incident opening 411 of the frame 40 shown in FIGS. 4 and 7 corresponds to the arrangement of the incident opening 411 when the luminaire 1 is viewed in the optical axis direction. Therefore, as can be seen from FIGS. 4 and 7, when the optical member 30 is viewed in the optical axis J direction of the light source 12, at least a part of the outer edge 315 of the optical member 30 is located outside the incident opening 411. . Further, when the reflecting member 16 is viewed in the optical axis J direction, at least a part of the outer edge 168 of the reflecting member 16 is located outside the incident opening 411. Thereby, even when the 1st latching | locking part 166 and the 2nd latching | locking part 131 are damaged, it is suppressed that the optical member 30 and the reflection member 16 slip out from the incident opening part 411 of the frame 40. FIG. Therefore, the separation of the optical member 30 and the reflecting member 16 from the lighting fixture 1 is suppressed. In the present embodiment, when the optical member 30 and the reflecting member 16 are viewed in the optical axis J direction, the outer edge 315 of the optical member 30 and the outer edge 168 of the reflecting member 16 are outside the incident opening 411 over the entire circumference. Located in. That is, the outer diameters of the optical member 30 and the reflecting member 16 are larger than the inner diameter of the incident opening 411. Thereby, the detachment | leave from the lighting fixture 1 of the optical member 30 and the reflection member 16 can be suppressed more reliably.

  In addition, since the outer edge 168 of the reflecting member 16 is positioned outside the incident opening 411, when the luminaire 1 is viewed from the Y axis direction negative side, the reflecting member 16 and the optical are located inside the incident opening 411. Only member 30 and light source 12 are visible. That is, it can suppress that the wiring inside the lighting fixture 1 etc. are seen from the exterior of the lighting fixture 1. FIG. Thereby, it can suppress that users touch the wiring etc. inside the lighting fixture 1. FIG. Moreover, the structure which cannot see the inside of the lighting fixture 1 is preferable also on an external appearance design.

  In the present embodiment, as shown in FIG. 4, the auxiliary reflecting member 410 is squeezed at the end 421 of the frame main body 420 in the incident opening 411, so The flatness in the optical axis J direction of the end 414 near the member 30 is relatively low. Therefore, when the end portion 414 is brought into contact with the optical member 30 or the like, it is difficult to make the entire circumference of the end portion 414 contact the optical member 30. Therefore, in the present embodiment, a configuration is adopted in which the frame body 40 (end portion 414) is not brought into contact with the optical member 30. Note that the frame body 40 (end portion 414) may be brought into contact with the optical member 30 when there is little adverse effect when the incident opening 411 is brought into contact with the optical member 30 or the reflecting member 16. Thereby, the optical member 30 can be supported by the frame body 40.

[4. Effect etc.]
As described above, the lighting fixture 1 according to the present embodiment includes the lamp body 10 and the frame body 40. The frame 40 includes a light-transmitting optical member 30 that receives light emitted from the lamp body 10, an incident opening 411 that receives light emitted from the optical member 30, and an incident opening 411. And a cylindrical frame 40 having an emission opening 412 through which incident light is emitted. The lamp body 10 includes an instrument main body 11, a light source 12 attached to the instrument main body 11, and a reflecting member 16 that reflects light from the light source 12 toward the optical member 30. The lamp body 10 is provided with a first locking portion 166 that locks the optical member 30, and the optical member 30 is provided with a first locked portion 311. The optical member 30 is supported by the lamp body 10 by the first locked portion 311 being locked to the first locking portion 166, and when the optical member 30 is viewed in the optical axis J direction of the light source 12, At least a part of the outer edge 315 of the optical member 30 is located outside the incident opening 411.

  Thereby, it can suppress that the optical member 30 detaches | leaves from the lighting fixture 1. FIG. Moreover, the optical member 30 can be easily supported by the lamp body 10 without using a fastening member.

  Moreover, in the lighting fixture 1 according to the present embodiment, the lamp body 10 further includes an attachment member 13 that regulates the position of the light source 12, and the attachment member 13 has a second engagement portion that engages the reflection member 16. 131 may be provided. Further, the first locking portion 166 is provided on the reflecting member 16, and the reflecting member 16 is provided with a second locked portion 164 that is locked on the second locking portion 131. The second locked portion 164 may be supported by the attachment member 13 by being locked to the second locking portion 131.

  Thereby, the reflection member 16 can be easily supported by the attachment member 13 without using a fastening member.

  Moreover, in the lighting fixture 1 which concerns on this Embodiment, at least one of the 1st latching | locking part 166 and the 2nd latching | locking part 131 may be formed with resin.

  Thereby, at least one of the 1st latching | locking part 166 and the 2nd latching | locking part 131 can be formed easily.

  Moreover, in the lighting fixture 1 according to the present embodiment, when the reflecting member 16 is viewed in the direction of the optical axis J, the outer edge 168 of the reflecting member 16 may be located outside the incident opening 411.

  Thereby, it can suppress that the reflection member 16 detaches | leaves from the lighting fixture 1. FIG. In addition, since the outer edge 168 of the reflecting member 16 is positioned outside the incident opening 411, when the luminaire 1 is viewed from the Y axis direction negative side, the reflecting member 16 and the optical are located inside the incident opening 411. Only member 30 and light source 12 are visible. That is, it can suppress that the wiring inside the lighting fixture 1 etc. are seen from the exterior of the lighting fixture 1. FIG. Thereby, it can suppress that a user etc. touch the wiring inside the lighting fixture 1, etc. FIG. Moreover, the structure which cannot see the inside of the lighting fixture 1 is preferable also on an external appearance design.

  In the lighting fixture 1 according to the present embodiment, the optical member 30 may be a Fresnel lens.

  When the optical member 30 is a Fresnel lens, the thickness of the optical member 30 is relatively thick. Therefore, since the weight of the optical member 30 also becomes heavy, the force added to the 1st latching | locking part 166 etc. becomes large. Therefore, the first locking portion 166 and the like are easily damaged, and thus the configuration of the lighting fixture 1 according to the present embodiment is particularly effective.

(Variations, etc.)
As mentioned above, although the lighting fixture 1 which concerns on this invention was demonstrated based on embodiment, this invention is not limited to these embodiment.

  For example, in the above embodiment, the optical member 30 is a Fresnel lens, but the optical member 30 is not limited to this. The optical member 30 may be, for example, a hybrid lens, a dome lens, a flat plate (a cover that does not perform light distribution control), or the like.

  Moreover, in the said embodiment, although the 1st latching | locking part 166 was provided in the reflection member 16, the 1st latching | locking part 166 should just be formed in a part of lamp | ramp body 10. FIG.

  Moreover, in the said embodiment, although the structure in which the 1st latching | locking part 166 and the 2nd latching | locking part 131 have a protrusion was shown, each latching structure is not specifically limited. For example, the first locked portion 311 and the second locked portion 164 may have protrusions.

  Moreover, in the said embodiment, although COB type LED was used in the light source 12, you may use another light emitting element. For example, an SMD (Surface Mount Device) type LED may be used. Moreover, you may use other solid light emitting elements, such as an organic EL (Electro Luminescence) element, or other light sources other than a solid light emitting element.

  In addition, the present invention can be realized by various combinations conceived by those skilled in the art for each embodiment, or by arbitrarily combining the components and functions in each embodiment without departing from the spirit of the present invention. This form is also included in the present invention.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 10 Lamp body 11 Appliance main body 12 Light source 13 Mounting member 16 Reflective member 30 Optical member 40 Frame 131 Second locking part 164 Second locked part 166 First locking part 168, 315 Outer edge 311 First covered Locking part 411 Incident opening part 412 Outgoing opening part J Optical axis

Claims (5)

A lamp,
A translucent optical member into which the light emitted from the lamp is incident;
An incident opening for receiving the light emitted from the optical member, and a cylindrical frame having an output opening for emitting the light incident from the incident opening,
The lamp body includes an instrument body, a light source attached to the instrument body, and a reflection member that reflects light from the light source toward the optical member,
The lamp body is provided with a first locking portion for locking the optical member,
The optical member is provided with a first locked portion,
The optical member is supported by the lamp body by the first locked portion being locked to the first locking portion,
When the optical member is viewed in the optical axis direction of the light source, at least a part of the outer edge of the optical member is located outside the incident opening. The lamp further includes an attachment member that regulates a position of the light source,
The mounting member is provided with a second locking portion for locking the reflecting member,
The first locking portion is provided on the reflecting member,
The reflective member is provided with a second locked portion that is locked to the second locking portion,
The lighting apparatus according to claim 1, wherein the reflection member is supported by the attachment member when the second locked portion is locked to the second locking portion. The lighting fixture according to claim 2, wherein at least one of the first locking portion and the second locking portion is formed of a resin. The lighting fixture according to any one of claims 1 to 3, wherein an outer edge of the reflecting member is located outside the incident opening when the reflecting member is viewed in the optical axis direction. The lighting apparatus according to claim 1, wherein the optical member is a Fresnel lens.

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