JP6460805B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture including a light emitting module including a light emitting element and a lens unit that distributes light emitted from the light emitting module.

In recent years, light-emitting elements such as LEDs have been used as light sources in downlight-type luminaires embedded in mounting holes formed in attached parts such as the ceiling and spotlight-type luminaires that move and radiate in any direction. Many things are seen.
These lighting fixtures equipped with LEDs are provided with a light distribution control member such as a lens on the front surface of the LEDs in order to irradiate light emitted from the LEDs in a predetermined direction.

  For example, in the luminaire described in Patent Document 1, a lens is held by a substantially cylindrical holder. This holder is formed with a pair of an insertion hole formed on the inside and into which a lens is fitted, and a fixing claw that presses and fixes the front surface of the lens to the insertion hole.

Further, in the illumination device described in Patent Document 2, a lens fixed to a plate-like holder is disposed on the front surface of the LED.
The lens and the holder are formed with grooves for fitting with each other, and the lens is fitted into the holder and fixed.

  Further, in the lighting device described in Patent Document 3, a decorative frame attached to the instrument main body presses the lens against the instrument main body, and the lens is sandwiched between the instrument main body and the decorative frame.

JP 2012-099256 A JP 2011-124034 A JP 2010-287401 A

  However, the holder of the lighting apparatus described in Patent Document 1 holds the lens only with a pair of fixed claws, and when one of the fixed claws is damaged by vibration or the like, the lens moves from a predetermined position. Therefore, an arbitrary light distribution characteristic cannot be obtained.

  Moreover, since the holder is formed of a plate-like metal material and the lens is formed of a resin material, the lens has a thermal contraction rate larger than that of the holder. Therefore, when the lens contracts, it is considered that the fitting is loosened and comes off the holder. Further, when the lens expands, it becomes larger than the fitting groove with the holder, and the lens is pressed into the fitting groove of the holder, and a load is applied.

  Further, in the lighting device described in Patent Document 3, the lens is pushed into and sandwiched by the decorative frame, the load is always applied to the lens, and there is a possibility that cracks or breakage may occur.

  An object of this invention is to provide the lighting fixture which suppresses the load to a lens and hold | maintains a lens stably.

  The lighting fixture according to the present invention is attached to the fixture main body portion having a mounting front portion for attaching the light emitting module, and a side wall portion protruding from the mounting front portion to the irradiation side, and is emitted from the light emitting module. A lens unit that distributes light, the lens unit projecting toward the light emitting module, and an incident portion that receives light emitted from the light emitting module; and an output that emits light incident from the incident portion A first holder part that accommodates the light emitting part therein, and a lens receiving part that protrudes from the inner side surface and supports the irradiation side surface of the peripheral part of the light emitting part. One holder part and an annular second holder part fixed to the mounting front part, and storing the incident part of the lens part inside, A first holder having a first opening portion opposed to the peripheral portion of the emitting portion, and a width of a gap formed between the first opening portion and the lens receiving portion. A connecting portion that connects the portion and the second holder portion.

  According to the luminaire according to the present invention, the first holder part so that the width of the gap generated between the first opening of the second holder part and the lens receiving part of the first holder part varies. Since the connecting portion for connecting the second holder portion and the second holder portion is provided, the load on the lens portion can be suppressed and the lens portion can be stably held.

The perspective view seen from the downward direction of the illuminating device 1000 which concerns on Embodiment 1. FIG. The perspective view seen from the upper direction of the illuminating device 1000 which concerns on Embodiment 1. FIG. The disassembled perspective view of the illuminating device 1000 shown in FIG. The disassembled perspective view of the illuminating device 1000 shown in FIG. Sectional drawing of the lighting fixture 1100 which concerns on Embodiment 1. FIG. FIG. 3 is an exploded cross-sectional view of the lighting fixture 1100 according to Embodiment 1. The figure which shows the assembly process (a) to (c) of the lens unit 300 shown in FIG. FIG. 8 is a detailed view of part A shown in FIG. The figure which shows the attachment process (a) to (c) to the instrument main-body part 200 of the lens unit 300. FIG. A modification of the locking portion 340 in the first embodiment. FIG. 9 shows a lighting fixture 1100a that is a modification of the lighting fixture 1100 in Embodiment 1.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of each embodiment, the directions such as “up”, “down”, “left”, “right”, “front”, “back”, “front”, “back” are However, it is not intended to limit the arrangement or orientation of devices, instruments, parts, or the like.

Embodiment 1 FIG.
*** Explanation of configuration ***
FIG. 1 is a perspective view of illumination device 1000 according to the present embodiment as viewed from below. FIG. 2 is a perspective view of lighting device 1000 according to the present embodiment as viewed from above. FIG. 3 is an exploded perspective view of the lighting apparatus 1000 shown in FIG. 4 is an exploded perspective view of the illumination device 1000 shown in FIG. FIG. 5 is a cross-sectional view of lighting fixture 1100 according to the present embodiment. FIG. 6 is an exploded cross-sectional view of lighting fixture 1100 according to the present embodiment.
The overall configuration of lighting apparatus 1000 according to the present embodiment will be described with reference to FIGS. 1 and 6.

In the present embodiment, an example of a downlight type illumination device that is embedded and installed in an attachment hole formed in an attachment portion such as a ceiling will be described as the illumination device 1000.
In this embodiment, for convenience of explanation, the ceiling side is assumed to be the upper side, and the irradiation side is assumed to be the lower side.

The lighting device 1000 includes a frame 10 and a lighting fixture 1100 provided inside the frame 10 so as to be able to swing.
The frame body 10 includes an annular portion 11 formed in a substantially annular shape and a plurality of attachment springs 20 provided on the annular portion 11.
The flange 12 of the annular part 11 is a part for positioning the frame 10, that is, the lighting device 1000 on the attached part by contacting the lower surface of the attached part with the annular part 11 being inserted into the attachment hole.

  The attachment spring 20 is elastically deformed along the annular portion 11, and the annular portion 11 is inserted into the attachment hole of the attached portion. After the annular portion 11 is inserted into the mounting hole and the flange 12 comes into contact with the lower surface of the mounting surface, the annular portion 11 is made into the mounting hole by being elastically restored so as to increase the outer diameter of each mounting spring 20. Hold. The lighting fixture 1100 is supported on the inner side of the annular portion 11 of the frame 10 so as to be able to swing.

The lighting fixture 1100 includes a light emitting module 100, a fixture body 200, and a lens unit 300.
The instrument main body 200 includes an attachment front part 210 to which the light emitting module 100 is attached and a side wall part 220 protruding from the attachment front part 210 to the irradiation side. The instrument body 200 is attached with the light emitting module 100 and radiates heat generated from the light emitting module 100.
The lens unit 300 is attached to the instrument main body 200 and distributes light emitted from the light emitting module 100. The lens unit 300 is disposed on the front surface of the light emitting module 100.
In the light emitting module 100, a light emitting element 101 a such as an LED is mounted on a substrate 102.

  The light emitting module 100 includes a substrate 102 and a light emitting unit 101 formed on one surface of the substrate 102. The light emitting unit 101 includes a plurality of light emitting elements 101a and a translucent wavelength conversion member that seals the light emitting elements 101a. Here, illustration of the light emitting element 101a and the wavelength conversion member is omitted.

The light emitting element 101a is an LED element that emits blue light as an example. The light emitting element 101a is mounted on the wiring pattern of the substrate 102 by COB (Chip On Board) technology.
The light emitting module 100 further includes wiring that is electrically connected to the wiring pattern of the substrate 102. At the time of driving, DC power is supplied from the lighting device to each light emitting element 101a through this wiring.
In addition, the light emitting module 100 is fixed to the instrument main body 200 by a dedicated socket 110 having a donut shape with the front surface of the light emitting unit 101 opened. Illustration of wiring and lighting devices is omitted. As shown in FIG. 3, the light emitting module 100 may have a main body attachment portion that protrudes from the substrate 102 and has a screw hole into which a fixing member such as a screw is inserted. Alternatively, unlike the light emitting module 100 illustrated in FIG. 4, the light emitting module 100 may not be provided with a main body attaching portion protruding from the substrate, and may be fixed to the instrument main body portion 200 with an adhesive, for example.

The instrument main body 200 is formed by molding a material having heat dissipation performance such as aluminum, and includes a mounting front part 210, a side wall part 220, and a heat dissipation fin part 230.
The attachment front part 210 is an attachment part to which the light emitting module 100 is attached.
The side wall part 220 is erected in the irradiation direction of the light emitting module 100 from the peripheral part of the mounting front part 210.
The radiating fin portion 230 protrudes above the surface opposite to the surface on which the light emitting module 100 of the mounting front portion 210 is mounted.

The attachment front portion 210 has a substantially circular shape, and the light emitting module 100 is attached to the center. In the mounting front part 210, the lens unit 300 is disposed in front of the light emitting module 100 in the irradiation direction.
In addition, the mounting front portion 210 is formed with a power supply hole 222 for passing a power supply line in order to receive power supply from the lighting device to the light emitting module 100. In addition, a fixing hole 211 for fixing the lens unit with the main body fixing material 240 is formed in the mounting front portion 210. The fixing hole 211 is also referred to as a lens unit fixing hole. The fixing hole 211 holds a main body fixing material 240 that fixes the second holder part 330 of the lens unit 300 to the instrument main body part 200.

  The side wall part 220 is provided on the outer periphery of the mounting front part 210, and has a substantially cylindrical shape in which the irradiation direction of the light emitting module 100 is opened so as to surround the light emitting module 100.

  The heat radiating fin portion 230 has a plurality of heat radiating fins 231 protruding from the surface of the mounting front portion 210 opposite to the surface on which the light emitting module 100 is mounted, and the heat radiating fins 231 are arranged at substantially equal intervals. Has been.

The lens unit 300 includes a lens part 310, a first holder part 320, a second holder part 330, and a connecting part 3400.
The lens unit 310 includes an incident unit 311 that projects toward the light emitting module 100 and receives light emitted from the light emitting module 100, and an emitting unit 313 that emits light incident from the incident unit 311.
The second holder part 330 has an annular shape fixed to the mounting front part 210. The second holder part 330 accommodates the incident part 311 of the lens part 310 inside, and the outer diameter of the first opening part 331a on the irradiation side is smaller than the outer diameter of the emitting part 313, and the first opening part 331a faces the peripheral edge 313a of the emitting portion 313.
The first holder part 320 accommodates the emitting part 313 inside. The first holder part 320 has a lens receiving part 323 that protrudes from the inner side surface and supports the irradiation side surface of the peripheral edge part 313 a of the emitting part 313.

The connecting portion 3400 is configured such that the width of the gap C formed between the first opening 331a of the second holder portion 330 and the lens receiving portion 323 of the first holder portion 320 can be varied. And the second holder part 330 are coupled. That is, the connecting part 3400 connects the first holder part 320 and the second holder part 330 so that the width of the gap C generated between the first opening part 331a and the peripheral part 313a can be varied. Or the connection part 3400 connects the 1st holder part 320 and the 2nd holder part 330 so that the width | variety of the clearance gap C produced between the peripheral part 313a and the lens receiving part 323 is variable.
The detailed configuration of the connecting portion 3400 will be described later.

The lens unit 310 controls and emits light from the light emitting module 100 to have a desired optical characteristic.
The first holder part 320 is disposed on the irradiation side (flange 12 side) of the lens part 310.
The second holder part 330 is disposed on the incident side (light emitting module 100 side) of the lens part 310.
The locking part 340 is a member that connects the first holder part 320 and the second holder part 330.
The lens unit 310 is sandwiched and held by the connected first holder unit 320 and second holder unit 330.

The lens unit 310 has a substantially mortar shape, and is formed of a transparent material such as acrylic or polycarbonate, and emits light emitted from the light emitting module 100 with a predetermined light distribution characteristic.
In addition, the lens unit 310 includes an incident unit 311, a reflection unit 312, an output unit 313, and a lens flange unit 314.

The incident portion 311 is formed in a substantially concave shape on the apex side, and enters the light emitted from the light emitting module 100.
The reflecting portion 312 is a mortar-shaped outer portion, and reflects a part of the light incident from the incident portion 311.
The emitting part 313 is formed on the mortar-shaped plane side, and emits the light incident on the incident part 311 to the outside.
The lens flange 314 is a collar-like portion protruding in a plate shape on the outer periphery of the emission surface of the emission unit 313.

In addition, the shape, surface processing, and the like of the incident portion 311, the reflection portion 312, and the emission portion 313 may be changed depending on the light distribution characteristics of the lens portion 310. For example, the angle of the reflection unit 312 with respect to the emission unit 313 may be shallow.
Further, the reflecting portion 312 may be processed so as to reflect light by a metal film or the like, or may be configured to totally reflect light having a large incident angle due to a difference in refractive index from the outside of the lens portion 310. May be. In addition, irregularities may be formed on the surface of the emitting portion 313.

The side part 3211 of the first holder part 320 includes a cylinder part 321 inserted inside the side wall part 220 and a hook part 322 that contacts the side wall part opening edge 221 of the side wall part 220. The engagement opening 324 is formed in the cylindrical portion 321.
The first holder part 320 is formed of a metal member such as aluminum. As shown in FIGS. 3 and 4, the first holder part 320 includes a cylindrical part 321 having a substantially cylindrical shape, a hook part 322 protruding in the circumferential direction of the outer side surface of the cylindrical part 321, and the circumferential direction of the inner side surface. And a lens receiving portion 323 formed so as to project. The hook portion 322 is formed in a cylindrical shape continuously from the cylindrical portion 321 on the irradiation side of the cylindrical portion 321. The hook portion 322 is also referred to as a main body hook portion.
Further, an engagement opening 324 that is a substantially rectangular through hole is formed on the side surface of the cylindrical portion 321. The engagement opening 324 is also referred to as a holder hook. The engagement opening 324 is configured to be connected to the second holder part 330 by the locking part 340, and a plurality of engagement openings 324 are formed in the circumferential direction of the cylinder part 321.
In addition, the inner dimension of the cylindrical part 321 is larger than the outer diameter of the lens collar part 314 of the lens part 310, and the outer dimension of the cylindrical part 321 is smaller than the inner diameter of the side wall part 220 of the instrument main body part 200. .
Further, the outer diameter of the hook portion 322 is formed to be larger than the inner diameter of the side wall portion 220 of the instrument main body portion 200.

  The second holder part 330 is formed of a metal member such as aluminum. As shown in FIGS. 3 and 4, a conical tube portion 331 having a conical tube shape and a fixing portion 332 erected on the inclined outer surface of the conical tube portion 331 are provided. The opening at both ends of the conical cylinder part 331 is formed so that the second opening 331b which is the opening on the other side is smaller than the first opening 331a fitted into the first holder part 320.

The fixing portion 332 includes a vertical surface portion 333 that is substantially perpendicular to the first opening 331a and a horizontal surface portion 334 that is substantially parallel to the second opening 331b. The vertical surface portion 333 is formed with a fitting hole 333a into which the locking portion 340 is fitted. The horizontal plane portion 334 is formed with a main body connecting portion 334 a that is screwed with a main body fixing member 240 such as a screw to fix the lens unit 300 to the instrument main body portion 200. The main body fixing material 240 is also referred to as a main body fixing portion. The main body fixing member 240 may not be a screw, and may be any member that is fitted into the main body connecting portion 334a and fixes the lens unit 300 to the instrument main body portion 200.
In this way, the main body connecting portion 334 a that fits with the main body fixing material 240 is formed in the second holder portion 330, and the main body fixing material 240 pulls the second holder portion 330 toward the mounting front portion 210 while the main body connecting portion 334 a. Inserted.
In addition, although the fixing | fixed part 332 of FIG. 3 and the fixing | fixed part 332 of FIG. 4 are the fixed parts from which a shape differs, if it has the vertical surface part 333, the horizontal surface part 334, the insertion hole 333a, and the main body connection part 334a. The shape may be other than the fixing portion 332 in FIG. 3 and the fixing portion 332 in FIG. 4.

Further, the outer diameter of the first opening 331a is formed smaller than the inner diameter of the cylindrical portion 321 of the first holder portion. A plurality of fixing parts 332 are arranged in the circumferential direction of the conical cylinder part 331. For example, three fixing portions 332 are arranged at equal intervals in the circumferential direction of the conical cylinder portion 331.
The main body fixing member 240 will be described in detail with respect to a method for attaching the lens unit 300 to the instrument main body 200.

The connecting portion 3400 includes a locking portion 340 and an engagement opening 324 that engages with the locking portion 340.
The locking portion 340 has an engaging portion 342 that is disposed on a side portion of the second holder portion 330 and protrudes from the second holder portion 330 toward the first holder portion 320.
The engagement opening 324 is formed in the first holder part 320 and is larger than the engagement part 342 in the direction in which the second holder part 330 is pulled by the mounting front part 210 while engaging with the engagement part 342. Is done. That is, the engagement opening 324 is formed larger than the engagement portion 342 so that the engagement portion 342 can move in the vertical direction inside.

The locking part 340 is formed in a rod shape, and the engaging part 342 inserted into the engaging opening part 324 of the first holder part 320 and the fitting part 341 fitted into the fitting hole 333 a of the second holder part 330. And.
Note that the fitting hole 333a and the fitting portion 341 are threaded and may be screwed together. FIG. 10 is a diagram illustrating an example of the locking portion 340. As shown in FIG. 10, the locking portion 340 may be a screw including a fitting portion 341 that is threaded and an engaging portion 342 having a screw head 3422.

*** Description of functions ***
Next, a method for assembling the lens unit 300 will be described with reference to FIGS.
FIG. 7 is an assembly and fixing diagram of the lens unit 300 shown in FIG. 5, and FIG. 8 is a detailed view of a portion A shown in FIG.
(1) First, as shown in FIGS. 7A and 7B, the lens part 310 is inserted into the first holder part 320 from the opening on the cylinder part 321 side.
At this time, the lens unit 310 is inserted from the emitting unit 313 side and inserted until the lens collar unit 314 contacts the lens receiving unit 323.
(2) Next, as shown in FIGS. 7B and 7C, the second holder part 330 is inserted into the first holder part 320 so as to cover the lens part 310.
At this time, the first holder 330 is inserted until the first opening 331 a of the second holder 330 comes into contact with the lens flange 314.
(3) Next, as shown in FIGS. 7C and 8A and 8B, the fitting portion 341 of the locking portion 340 is inserted through the engagement opening 324 of the first holder portion 320. Then, it is inserted into the insertion hole 333 a of the second holder part 330.
At this time, the engaging portion 342 of the locking portion 340 and the engaging opening 324 are engaged, and the first holder portion 320 and the second holder portion 330 are connected.
Further, as shown in FIG. 8A, in the lens portion 310, the lens flange portion 314 is sandwiched between the lens receiving portion 323 and the first opening portion 331a.

  Note that, as shown in FIG. 8B, the size relationship between the locking portion 340 and the engagement opening 324 is such that the A dimension of the engagement opening 324 is larger than the B size of the locking portion 340. Further, the state shown in FIG. 8B is a state where the first opening 331 a of the second holder part 330 is in contact with the lens flange 314.

Next, a method for attaching the lens unit 300 to the instrument body 200 will be described with reference to FIG.
FIG. 9 is an attachment process diagram of the lens unit 300 shown in FIG.
(1) First, as shown in FIGS. 9A and 9B, the side wall of the instrument main body 200 is arranged so that the lens unit 300 faces the second opening 331b facing the front surface of the light emitting module 100. Insert inside the portion 220.
At this time, the cylindrical portion 321 is inserted inside the side wall portion 220, and the hook portion 322 abuts on the side wall portion opening edge 221 serving as the opening edge of the side wall portion 220.
(2) Next, as shown in FIGS. 9B and 9C, the main body fixing member 240 is attached to the instrument main body portion 200 with the hook portion 322 in contact with the side wall portion opening edge 221 of the side wall portion 220. The main body connecting portion 334a is screwed through the fixing hole 211.
The second holder part is pulled and fixed to the mounting front part 210. The lens unit 300 is fixed to the instrument main body 200 in a state where the second holder 330 is pulled by the mounting front surface 210 by the main body fixing material 240.
The main body fixing member 240 has a screw shape as shown in FIGS. 9B and 9C, but may have other shapes as long as the second holder portion 330 is fixed to the mounting front portion 210 while being pulled. .

  In the lens unit 300, the hook portion 322 of the first holder portion 320 abuts on the side wall portion opening edge 221, and the second holder portion 330 is pulled by the mounting front portion 210. Therefore, as shown in FIG. 9C, the locking portion 340 that connects the first holder portion 320 and the second holder portion 330 is disposed on the mounting front portion 210 side of the engagement opening 324, A gap C is formed between the lens flange 314 and the first opening 331a. Alternatively, a locking portion 340 that connects the first holder portion 320 and the second holder portion 330 is disposed on the mounting front portion 210 side of the engagement opening 324, and the lens collar portion 314 and the lens receiving portion 323 are arranged. A gap C is formed between them. At this time, the locking portion 340 moves to the mounting front portion 210 side of the engagement opening 324, like the dotted locking portion 340 in FIG.

*** Explanation of effects ***
According to the lighting fixture 1100 according to the present embodiment, it is possible to hold the lens unit 310 while suppressing the load on the lens unit 310 by the gap C described in FIG. In addition, cracking of the lens unit 310 can be prevented and deformation due to thermal expansion can be allowed.
In addition, by allowing deformation due to thermal expansion, it is possible to suppress rubbing noise generated by contact between the lens unit 310 and the first holder unit 320 or between the lens unit 310 and the second holder unit 330 due to thermal expansion. Can do.

Further, the lens portion 310 is held around the entire circumference by holding the lens flange portion 314 between the lens receiving portion 323 and the first opening portion 331a, thereby preventing the lens portion 310 from coming off due to thermal contraction.
In addition, the size of the gap C can be changed to an arbitrary size by adjusting the length of the main body fixing member 240 screwed into the main body connecting portion 334a, so that the lens having a different thickness of the lens flange portion 314 is used. The part 310 can also be attached.
Moreover, since the latching | locking part 340 and the engagement opening part 324 are arrange | positioned inside the side wall part 220, it is excellent in the design property, without a mechanism shape appearing in the design surface.

In the present embodiment, the shape in which the first holder portion 320 has the engagement opening 324 and the second holder portion 330 has the fixing portion 332 that holds the locking portion 340 has been described. . However, the first holder part may have a fixed part and the second holder part may have an engagement opening.
That is, the connecting portion includes a locking portion that is disposed on a side portion of the first holder portion and has an engaging portion that protrudes from the first holder portion toward the second holder portion. The connecting portion is formed in the second holder portion, and engages with the engaging portion, and is an engagement opening formed larger than the engaging portion in the direction in which the second holder portion is pulled to the mounting front portion. The structure provided with may be sufficient. At this time, the locking portion is formed in the cylindrical portion.

  In the present embodiment, the locking portion 340 has been described as a single member, but it may be formed integrally with the second holder portion 330 or the first holder portion 320.

  The engaging opening 324 has been described as having a substantially rectangular shape. However, the engaging opening 324 may have a long hole shape as long as the engaging portion 340 can be moved along with the attachment of the lens unit 300 to the instrument main body 200. .

  In the present embodiment, the shape in which the fixing portion 332 includes the insertion hole 333a and the main body connection portion 334a has been described. However, the insertion hole and the main body connection portion may be formed in separate fixing portions.

  FIG. 11 is a diagram showing a lighting fixture 1100a that is a modification of the lighting fixture 1100 according to the present embodiment. In the lighting device 1000 according to the present embodiment, the downlight type lighting fixture embedded in the mounting hole of the mounted portion has been described, but the lighting fixture 1100a illustrated in FIGS. The present embodiment can be applied even to a spotlight type lighting fixture. The lighting fixture 1100a of FIG. 11 is used by being attached to a duct rail. Note that this embodiment can be applied to any form of lighting fixture as long as it is a lighting fixture having the lens unit 300 and the fixture main body 200 described in this embodiment.

  The first holder part 320 and the second holder part 330 have been described as being formed of a metal material such as aluminum. However, the first holder part 320 and the second holder part 330 may be formed of a resin material such as polycarbonate in consideration of mounting strength and holding load. .

Although the first embodiment has been described above, one of the embodiments may be partially implemented. Alternatively, a plurality of the embodiments may be partially combined. This embodiment may be implemented in any combination as a whole or in part.
In addition, said embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use, A various change is possible as needed. .

    DESCRIPTION OF SYMBOLS 10 Frame, 11 Annular part, 12 Flange, 20 Mounting spring, 100 Light emitting module, 101 Light emitting part, 101a Light emitting element, 102 Substrate, 110 socket, 200 Instrument body part, 210 Mounting front part, 211 Fixing hole, 220 Side wall part 221 Side wall opening edge, 222 Power supply hole, 230 Radiation fin part, 231 Radiation fin, 240 Main body fixing material, 300 Lens unit, 310 Lens part, 311 Incident part, 312 Reflecting part, 313 Emitting part, 313a Peripheral part, 314 Lens collar part, 320 First holder part, 321 Tube part, 322 Hook part, 323 Lens receiving part, 324 Engagement opening part, 330 Second holder part, 331 Conical cylinder part, 331a First opening part, 331b 2nd opening part, 332 fixation part, 333 vertical surface part, 333a insertion hole, 34 horizontal portion, 334a main body connecting portion 340 locking portion 341 fitting portion, 342 engagement portions, 1000 illumination device, 1100,1100A luminaire, 3211 side, 3400 connecting portion 3422 screw head, C clearance.

Claims (4)

A mounting front part for attaching the light emitting module, and a tool body part having a side wall part projecting from the mounting front part to the irradiation side,
A lens unit that is attached to the instrument body and distributes light emitted from the light emitting module;
The lens unit is
A lens unit having a introduction unit which introduces light emitted from the front Symbol emitting module and an exit section for emitting the light incident from the incident part,
A first holder portion for accommodating the emitting portion therein, the first holder portion having a lens receiving portion for supporting the peripheral portion of the front Symbol emitting portion,
A second holder portion of the fixed annular to the attachment front part, while accommodating the entering-morphism portion therein, the first opening of the irradiation side facing the periphery of the exit portion The second holder part,
A connecting portion that connects the first holder portion and the second holder portion so that the width of the gap generated between the first opening and the lens receiving portion can be varied ;
The connecting portion is
An insertion hole formed in a side portion of the second holder portion;
An engagement opening formed on a side of the first holder part;
A locking portion fitted into the insertion hole via the engagement opening, the locking portion being movable within the engagement opening;
Lighting equipment with The second holder part is
It is pulled and fixed to the mounting front part,
The locking portion is
In the state of being fitted into the fitting hole , it has an engaging portion that protrudes from the second holder portion toward the first holder portion,
The engagement opening is
Wherein in a second direction which the holder unit is pulled to the attachment front part, the luminaire of claim 1, wherein the engagement increases formed from engaging portion while engaging with the engaging portion. The side of the first holder part is
A cylinder part inserted inside the side wall part, and a hook part that hits the side wall part opening edge of the side wall part,
The engaging opening, the luminaire according to claim 2 which is formed on the cylindrical portion. The mounting front part is
A fixing hole for holding a body fixing material for fixing the second holder part to the instrument body part is formed,
The second holder part is
A main body connecting portion that fits with the main body fixing material is formed,
The body fixing material is
The lighting fixture according to any one of claims 1 to 3 , wherein the lighting fixture is fitted into the main body connecting portion while pulling the second holder portion toward the attachment front portion.

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