JP6704116B2 - lighting equipment - Google Patents

Description

The present invention relates to a lighting device including a transmissive optical member.

Conventionally, as an embedded lighting fixture, for example, a ceiling-embedded lighting fixture that is embedded in the ceiling and emits light downward, such as a downlight or a spotlight, or is embedded in the ground. An underground illuminating device and the like are known that illuminate light upward. As a conventional embedded luminaire, for example, Patent Literature 1 discloses a luminaire related to a downlight.

JP, 2011-210621, A

Generally, an optical member used in a conventional downlight is attached to a reflecting member via a rubber sealing member. The seal member has a shape that covers the outer peripheral side surface of the optical member, but due to the dimensional tolerance of each member, the above-mentioned adhesion and hermeticity may not be sufficiently ensured.

Therefore, the present invention provides a lighting fixture in which the adhesion and the hermeticity of the optical member with respect to the reflection member via the sealing member are higher.

The lighting fixture according to the present invention is a bottomed tubular fixture main body having an opening, a light source section arranged at the bottom of the fixture main body, and a tubular member having openings at both ends of an entrance opening and an exit opening. There is a brim-shaped portion projecting outward over the entire circumference at the opening edge of the exit opening, a reflecting member disposed inside the instrument body, and a first surface facing the light source section side. An annular portion having a second surface facing the first surface and having a groove open inward on the inner peripheral side surface along the entire circumference, and a free end, and outward from the outer peripheral side surface of the annular portion. Elastic sealing member provided with a flange portion projecting toward the optical member, an optical member that closes the emission opening portion and is fitted into the groove and arranged at the opening end portion of the instrument body, and a tubular shape with both ends open. And a frame body that is attached to the instrument body by pressing the seal member over the entire circumference from the second surface side.

With the above configuration, it is possible to improve the adhesion and sealing property of the optical member with respect to the reflecting member.

FIG. 1 is an exploded perspective view of a lighting fixture 100 according to an embodiment. FIG. 2 is a cross-sectional view of the lighting fixture 100 according to the embodiment. FIG. 3 is an enlarged view of a main part of a cross section of the lighting fixture 100 according to the embodiment. 4A and 4B are cross-sectional views of the optical member 6 and the seal member 5 according to the embodiment and a connecting portion thereof. FIG. 4A is a cross-sectional view according to the embodiment, and FIGS. It is sectional drawing which shows.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that each of the embodiments described below shows a preferred specific example of the present invention. Therefore, numerical values, shapes, materials, constituent elements, arrangement positions of constituent elements, 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, the constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as arbitrary constituent elements.

It should be noted that each drawing is a schematic diagram and is not necessarily strictly illustrated. In addition, in each drawing, the same reference numerals are given to substantially the same configurations, and overlapping description will be omitted or simplified.

(Embodiment)
[1. Constitution]
First, the configuration of the lighting fixture 100 according to the embodiment will be described with reference to FIGS. 1 to 3.

FIG. 1 is an exploded perspective view of lighting fixture 100 according to the present embodiment.
FIG. 2 is an exploded perspective view of the reflecting member 4 and the optical member 6 according to this embodiment.
FIG. 3 is an enlarged view of a main part of a cross section of lighting fixture 100 according to the present embodiment.

As shown in FIGS. 1, 2, and 3, the lighting fixture 100 includes a fixture body 1, a light source unit 2, a mounting member 3, a reflecting member 4, a seal member 5, an optical member 6, and a frame body 7. The XYZ directions are defined as shown in each figure. The optical axis J direction of the light emitted from the light source unit 2 is the vertical direction (Z-axis direction in each drawing). Hereinafter, each component will be described.

[1-1. Instrument body]
The instrument body 1 is a bottomed tubular member that has an opening and supports the light source unit 2 and the reflection member 4 inside. In the present embodiment, the instrument body 1 functions as a mount for attaching the light source unit 2 and the reflecting member 4. The instrument body 1 includes a tubular portion 11, a light source support portion 12, and a plurality of fins 13.

The tubular portion 11 is a bottomed tubular portion that opens toward the Z-axis direction. Inside the tubular portion 11, at the open end portion 111 that is open, a first step portion 14 and a second step portion 15 surrounded by the first step portion 14 are provided over the entire circumference. As described above, the inside of the tubular portion 11 has the first step portion 14 that holds the seal member 5 and the optical member 6, and the second step portion 15 that holds the flange portion 45 of the reflection member 4.

A specific shape of the tubular portion 11 will be described. The inner peripheral shape of the first step portion 14 is approximately the same as the outer peripheral shape of the seal member 5. The inner peripheral shape of the second step portion 15 is smaller than the outer peripheral shape of the seal member 5, and is approximately the same as the outer peripheral shape of the collar-shaped portion 45 of the reflecting member 4. Further, the height of the first step portion 14 in the Z-axis direction is approximately the same as the thickness of the seal member 5, and the height of the second step portion 15 in the Z-axis direction is also approximately the same as the thickness of the flange portion 45.

The frame body 7 is attached to the Z-axis direction side of the tubular portion 11. The frame body 7 is fastened to the instrument body 1 by using screws (not shown), for example. A screw hole (not shown) is provided in the frame body end 74 on the Z axis direction negative side of the frame body 7, and the frame body 7 is attached to the instrument body 1 by screwing the screw into the screw hole. It is attached.

The light source support portion 12 is a portion that supports the light source portion 2 provided on the bottom surface of the tubular portion 11. The light source section 2 is arranged on the bottom surface and is attached to the light source support section 12 by the attachment member 3. The light source support portion 12 may be configured only by the flat surface of the bottom surface, or a part where the light source portion 2 is mounted may be recessed or may have a protruding shape. In addition, the portion of the bottom surface on which the light source unit 2 is mounted may be recessed in the same shape as the light source unit 2.

The fins 13 are portions that radiate the heat generated by turning on the light source unit 2. The fins 13 are plate-shaped, and a plurality of fins 13 are provided on the outer wall of the instrument body 1 so as to stand on the Z axis direction negative side.

The instrument main body 1 may be formed using a material having a high thermal conductivity such as a metal material. For example, the instrument body 1 is preferably formed through an aluminum die casting process.

[1-2. Light source]
The light source unit 2 is a light emitting module having a light emitting element, and the light emitting element is, for example, an LED (Light Emitting Device) that radially emits predetermined light. The light source unit 2 is configured by a COB (Chip On Board) type LED, and includes a base 21 and a light emitting unit 22. The light emitting unit 22 has a plurality of LED chips, which are bare chips (LED chips) mounted on the base 21, and a sealing member that seals the LED chips. In addition, in the present embodiment, the sealing member collectively seals all the LED chips, but the configuration of the sealing member is not limited to this. For example, a plurality of sealing members may be arranged in a line along the arrangement direction of the LED chips arranged in a line.

The light source section 2 is attached to the light source support section 12 of the instrument body 1 by the attachment member 3. The light emitted from the light source unit 2 shown in FIG. 1 is applied in the optical axis J direction (Z axis direction in FIG. 1).

The base 21 is a mounting substrate for mounting a plurality of LED chips, and is, for example, a ceramic substrate, a resin substrate, or a metal base substrate coated with an insulating material. The base 21 is a plate-shaped member having a rectangular flat surface in plan view, for example. The bottom surface of the base 21 is fixed toward the instrument body 1. The base 21 is provided with a pair of electrode terminals 23 (a positive electrode terminal and a negative electrode terminal) for receiving direct current power from the power supply section in order to emit light from the LED chip.

[1-3. Mounting member]
The mounting member 3 is a member for mounting the light source unit 2 on the instrument body 1.

In the present embodiment, the mounting member 3 has a restriction portion 31 and a first locking portion 32.

The regulation unit 31 regulates the position of the light source unit 2 in the X-axis and Y-axis directions. The restriction portion 31 has a rectangular frame shape having an opening 33 in the center and is made of an insulating resin material.
The opening 33 has a shape corresponding to the base 21 of the light source unit 2. The light source unit 2 is fitted and arranged in the opening 33.

Further, the restricting portion 31 is provided with a screw through hole (not shown) for attaching to the light source supporting portion 12 of the instrument body 1, and the attaching member 3 causes the mounting member 3 to be attached by the screw penetrating the screw through hole. And is attached to the instrument body 1.

Further, the attachment member 3 is provided with two connection members 34 that not only support the light source unit 2 but also function as a connector for energization. The connection member 34 has an insulating resin connection main body and an electrode portion fixed to the connection main body. The wiring on the high potential side is electrically connected to one of the connecting members 34, and the wiring of the low potential is electrically connected to the other connecting member 34. The electrode portion is preferably formed using a conductive material such as metal. The electrode portions are formed by bending, and are attached in contact with the pair of electrode terminals 23 provided in the light source portion 2.

The metal plate of the connecting member 34 is elastically deformed when the connecting member 34 is screwed and fixed to the instrument body 1 via the mounting member 3. Due to this elastic deformation, the connector portion urges the electrode terminals 23 of the light source portion 2 to be electrically connected.

[1-4. Reflective member]
As shown in FIG. 2, the reflection member 4 is a member that reflects the light from the light source unit 2 toward the optical member 6. The reflecting member 4 has a cylindrical shape with openings at both ends of the entrance opening 41 and the exit opening 42. The entrance opening 41 is formed so as to surround the light source unit 2. The exit opening 42 is larger than the inner diameter of the entrance opening 41. The inner surface of the reflection member 4 is a reflection surface that reflects light from the light source unit 2.

The reflecting member 4 arranged in the instrument body 1 is composed of a central portion 43, a standing portion 44, and a flange portion 45.

The central portion 43 is provided with an entrance opening 41 and an exit opening 42, and has a cylindrical shape configured such that the inner diameter and the outer diameter gradually increase from the entrance opening 41 toward the exit opening 42. .. The reflection member 4 is attached to the attachment member 3 such that the inner diameter of the entrance opening 41 surrounds the light source unit 2.

The light emitted from the light source unit 2 enters through the entrance opening 41, is reflected by the inner wall surface of the central portion 43, and exits through the exit opening 42.

The collar-shaped portion 45 is a member having an annular shape that projects outward along the entire circumference at the opening edge portion of the emission opening portion 42.

The upright portion 44 is disposed on the light source 2 side of the collar portion 45 and is upright in the opposite direction of the Z-axis direction. The upright portion 44 is provided with a locked through hole 441 corresponding to the locking portion 32 provided on the mounting member 3. By connecting the first locking portion 32 provided on the mounting member 3 to the first locked through hole 441, the reflecting member 4 is mounted on the instrument body 1 via the mounting member 3. The reflection member 4 is attached to the attachment member 3 so as to surround the light source unit 2 inside the entrance opening 41.

The reflecting member 4 is formed using a white resin material such as polybutylene terephthalate (PBT) or polycarbonate.

[1-5. Seal member]
The seal member 5 is a member having elasticity used when the optical member 6 is attached to the instrument body 1. That is, the seal member 5 is made of an elastically deformable material such as silicone resin.

As shown in FIGS. 1 and 2, the seal member 5 includes an annular portion 51 and a flange portion 52.

The annular portion 51 is an annular portion having a first surface 511 on the light source side and a second surface 512 facing the first surface 511. The inner peripheral side surface of the annular portion 51 has a groove 53 that is open inward over the entire circumference. The outer peripheral end portion 63 of the optical member 6 is fitted into the groove 53. That is, the outer peripheral end portion 63 is fitted into the groove 53 over the entire circumference. The optical member 6 is fixed to the instrument body 1 by being attached to the first step portion 14 of the instrument body 1.

The inner diameter of the annular portion 51 is larger than the inner diameter of the emission opening portion 42 and smaller than the outer circumference of the reflecting member 4. The outer diameter of the annular portion 51 is preferably about the same as the inner diameter of the first step portion 14.
The thickness of the annular portion 51 in the Z-axis direction is preferably about the same as the height of the first step portion 14 in the Z-axis direction.

Further, the first surface 511 of the annular portion 51 is preferably provided with a mountain-shaped and annular-shaped protruding portion 54 over the entire circumference. The inner diameter of the protrusion 54 is larger than the inner diameter of the second step portion 15, and is preferably provided near the inner diameter of the first surface 511.

The flange portion 52 is a portion having an annular shape that is erected from the outer peripheral side surface of the annular portion 51 toward the outside (in the vertical plane direction of the J axis in FIG. 2). The outer peripheral end of the collar portion 52 is a free end. The collar portion 52 is preferably provided in the thickness of the annular portion 51 in the Z-axis direction near the first surface 511 on which the protruding portion 54 is provided. Further, the thickness of the collar portion 52 in the Z-axis direction is preferably thinner than the thickness of the annular portion 51 (for example, half the thickness of the annular portion 51 or less). Further, although the collar portion 52 is vertically erected from the annular portion 51 with a uniform thickness, if the free end of the collar portion 52 can be bent in the Z-axis direction, the collar portion 52 and the annular portion 51. An arc may be provided at the joint portion with. For example, as shown in FIG. 4, there is an example of the shape of the joint between the collar portion 52 and the annular portion 51. FIG. 4A shows the shape of the joint in the present embodiment. (B) is a shape having a curved surface at the joint between the collar portion 52 and the annular portion 51. (C) is a shape in which a recess is provided at the joint between the collar portion 52 and the annular portion 51. The joint portion is not limited to the shape shown in FIG. 4, and may have any shape as long as the collar portion 52 can be bent.

The length of the collar portion 52 in the vertical direction of the Z axis should be shorter than the length of the first step portion 14 of the tubular portion 11 of the instrument body 1 in the Z axis direction when the collar portion 52 is bent in the Z axis direction. Is preferred.

The locking structure of the seal member 5 will be described later.

[1-6. Optical member]
The optical member 6 is a transmissive member on which the light emitted from the light source unit 2 is incident, and is arranged so as to cover the emission opening 42. In the present embodiment, the optical member 6 includes a light distribution control section 61 and a flange section 62.

The light distribution control unit 61 has a function of controlling the light distribution of the light incident from the light source unit 2 side and emitting the light. The light distribution control unit 61 is preferably formed so as to be curved so as to project in the Z-axis direction and bulge toward the inside of the frame body 7. The light incident surface (Z axis direction negative side) is dimple-processed. A Fresnel lens composed of a plurality of prisms arranged concentrically is formed on the light emission surface (Z-axis direction side). As a result, the emitted light can be diffused, the illuminance unevenness and the color unevenness of the light can be suppressed, and the object to be irradiated can be uniformly illuminated.

The flange portion 62 is a portion that is arranged in an annular shape at the end of the optical member 6 on the light incident side and connects the optical member 6 and the reflecting member 4 to the instrument body 1 via the seal member 5. The outer diameter of the flange portion 62 is preferably smaller than the inner diameter of the first step portion 14 and about the same as the inner diameter of the second step portion 15.

The optical member 6 is formed of a transparent material, and may be formed of, for example, a transparent resin material such as Fresnel lens, PMMA (acrylic), or polycarbnate, or a transparent material such as a glass material. preferable.

The optical member 6 may be a flat plate-shaped flat panel as long as it has a light distribution control function and a light diffusion function.

[1-7. Frame]
The frame body 7 is a tubular frame member having openings at both ends for reflecting the light emitted from the optical member 6. The frame body 7 includes a frame body portion 71, an auxiliary reflection portion 72, and a mounting portion 73.
As shown in FIGS. 1 and 3, the frame 7 is in contact with the end surface of the instrument body 1 on the Z-axis direction side.

The frame body portion 71 is a tubular member, and the end portion on the negative side in the Z-axis direction has the same outer diameter as the tubular portion 11 of the instrument body 1. The end on the Z axis direction negative side of the frame body 71 and the end on the Z axis direction side of the instrument body 1 are fixed by, for example, screws. The frame body 71 is made of metal such as aluminum.

Further, the frame body end portion on the Z axis direction negative side of the frame body body portion 71 has a shape for fixing the instrument body 1 and the seal member 5. In the present embodiment, the inner diameter of the frame body end portion 74 projects toward the center more than the inner diameter of the first step portion 14, and the frame body body end portion 74 connects the instrument body 1 and the seal member 5 from the Z-axis direction. The shape is fixed by pressing.

The auxiliary reflection portion 72 is a tubular member formed along the inner peripheral surface of the frame body portion 71. The inner peripheral surface of the auxiliary reflection portion 72 has an auxiliary reflection surface and has a function of controlling the light distribution of the light incident from the optical member 6. The auxiliary reflector 72 is formed of a thin metal plate such as aluminum. The auxiliary reflector 72 is attached to the frame body 71 by caulking the opening on the Z axis direction negative side in the Z-axis direction negative side opening of the frame body 71. Further, the auxiliary reflector 72 is attached to the instrument body 1 via the frame body 71 with an opening on the Z axis direction negative side surrounding the light distribution control unit 61.

The mounting portion 73 is an elastic member for mounting the lighting fixture 100 on a ceiling or the like. In the present embodiment, the three mounting portions 73 are provided on the outer periphery of the frame body portion 71. The mounting portion 73 is formed of a metal such as iron.

[2. Locking configuration]
Next, with reference to FIG. 1 to FIG. 3, a locking structure between the constituent elements according to the present embodiment will be described.

[2-1. Locking structure between the device body and the reflective member]
The locking structure between the instrument body 1 and the reflecting member 4 will be described.

As shown in FIGS. 2 and 3, the light source unit 2 is attached to the bottom of the instrument body 1. Specifically, the light source unit 2 is fitted into the opening of the mounting member 3, and the mounting member 3 is screwed to the light source supporting unit 12 of the instrument body 1 via the connecting member 34.

The entrance opening 41 of the reflecting member 4 is attached to the instrument body 1 so as to surround the attached light source unit 2 as shown in FIG.

The reflection member 4 is locked to the instrument body 1 by inserting the locking portion 32 provided in the mounting member 3 into the locked through hole 441 provided in the reflection member 4. When the instrument body 1 and the reflection member 4 are locked, the entrance opening 41 of the reflection member 4 surrounds the base 21 inside the opening of the instrument body 1 and is locked.

Specifically, the locking portion 32 provided in the mounting member 3 is inserted into and supported by the locked through hole 441 provided in the upright portion 44 of the reflecting member 4. At that time, the light source unit 2 is housed within the diameter of the entrance opening 41 of the reflecting member 4.

The outer peripheral end portion 46 of the collar portion 45 of the reflecting member 4 is fitted and attached to the second step portion 15 of the instrument body 1.

[2-2. Locking configuration between instrument body and optical member]
With reference to FIG. 3, a locking configuration of the instrument body 1 and the seal member 5 will be described.
The optical member 6 is attached to the instrument body 1 via the seal member 5 having elasticity.
Specifically, the outer peripheral end portion 63 of the optical member 6 is fitted into the groove 53 of the seal member 5. The optical member 6 is attached to the instrument body 1 by fitting the seal member 5 into the first step portion 14 of the instrument body 1.

At this time, the outer peripheral edge of the collar portion 52 provided on the seal member 5 is elastically deformed in the Z-axis direction from the Z-axis vertical direction and is held in a bent state. When fitted in the first step portion 14 in this manner, the collar portion 52 exerts a restoring force in the direction perpendicular to the Z axis, and the seal member 5 is arranged in pressure contact with the instrument body 1. As a result, even if there is a gap due to the dimensional tolerance of the optical member 6, it can be attached corresponding to the gap due to the elastic deformation of the collar portion 52, so that it can be attached without rattling. Further, since the optical member 6 can be temporarily held on the instrument body 1 by the restoring force, the optical member is less likely to drop even before being fixed to the frame body 7 during assembly.

Further, the protrusion 54 is provided on the first surface 511 of the seal member 5. When the outer peripheral edge of the optical member 6 is fitted in and attached to the groove 53 of the seal member 5, the protrusion 54 is disposed in contact with the surface of the flange portion 45 facing the optical member 6. Due to the restoring force of the collar portion 52, a force acts on the protruding portion 54 on the negative side in the Z-axis direction, and the instrument body 1 and the reflecting member 4 can be pressed against each other in the Z-axis direction. Thereby, the gap due to the dimensional tolerance between the reflection member 4 and the instrument body 1 can be attached without rattling.

The seal member 5 is fixed to the instrument body 1 by being screwed to the Z axis direction negative side by the end of the frame body of the frame body 7.

With this locking structure, the flange portion 52 of the seal member 5 is attached to the reflecting member 4 and the optical member 6 in a state of being elastically deformed and bent. Due to the bent collar portion 52, a restoring force due to elastic deformation acts in the direction perpendicular to the Z axis. Due to the restoring force, the seal member 5 is attached while being pressed against the first step portion 14 of the instrument body 1 while holding the optical member 6. Further, the reflecting member 4 is attached in pressure contact with the optical member 6 via the protruding portion 54 provided on the annular portion 51. Therefore, the seal member 5 can improve the adhesion and the hermeticity of the optical member 6 with respect to the reflection member 4, and the holding force of the optical member with respect to the reflection member 4 can be increased. Further, the adhesiveness and the airtightness can be enhanced by the reaction effect of the restoring force and the anti-slip effect of the elastic member. In addition, since the gap can be eliminated by improving the adhesiveness and the airtightness, insect repellent and waterproof effects on the inside of the lighting fixture 100 are expected.

[4. Effects, etc.]
As described above, the lighting fixture 100 according to the present embodiment includes the bottomed tubular fixture main body 1 having the opening, the light source unit 2 arranged at the bottom of the fixture main body 1, the entrance opening 41, and the exit opening 42. A tubular member that is open at both ends, and is provided with a collar-shaped portion 45 that projects outward along the entire circumference at the opening edge portion of the emission opening portion 42, and is arranged inside the instrument body 1. 4, a first surface 511 facing the light source unit 2 side, a second surface 512 facing the first surface 511, and a groove 53 that is open inward on the inner peripheral side surface over the entire circumference. An elastic seal member 5 provided with an annular portion 51 and a flange portion 52 having a free end and standing outward from the outer peripheral side surface of the annular portion 51, and the exit opening 42 is closed by a groove. An optical member 6 fitted in 53 and arranged at the open end 111 of the instrument body 1, and a cylindrical member having both ends opened, and pressing the seal member 5 from the second surface 512 side over the entire circumference. And a frame 7 attached to the instrument body 1.

As a result, when the optical member 6 is fitted into the first step portion 14 via the seal member 5, the restoring force of the collar portion 52 of the seal member 5 causes the optical member 6 to adhere to and seal against the instrument body 1. Can be improved. Therefore, rattling due to the dimensional tolerance of each member can be prevented, and the holding force of the optical member 6 with respect to the reflecting member 4 can be increased. It is also expected to have insect and waterproof effects.

In addition, the opening end portion 111 is provided with the first step portion 14 and the second step portion 15 surrounded by the first step portion 14 over the entire circumference, and the reflecting member 4 is provided in the second step portion 15. It is preferable that the collar-shaped portion 45 is attached to the instrument body 1 by being pressed by the seal member 5 over the entire circumference.

As a result, the reflection member 4 is attached by pressure contact with the instrument main body 1 by the seal member 5, so that the reflection member 4 can be attached without using a fastening member.

Further, it is preferable that the seal member 5 is provided with the protrusion 54 over the entire circumference of the first surface 511.

As a result, when the seal member 5 is fitted into the first step portion 14, a restoring force also acts on the negative side in the Z-axis direction, so that the adhesion and the tightness of the reflection member 4 with respect to the instrument body 1 can be further improved. You can

Further, the collar portion 52 is preferably provided near the first surface 511 on which the protruding portion 54 is provided.

Further, the thickness of the collar portion 52 is preferably thinner than the thickness of the annular portion 51.

As a result, the collar portion 52 is surely bent and fitted into the first step portion 14 and can exert a restoring force.

As described above, by providing the protrusion 54 on the first surface 511 of the annular portion 51, the reflecting member 4 can be pressed against the instrument body 1 more strongly, so that even if there is variation due to dimensional tolerance, Rattling with the optical member 6 is reduced.

(Modifications, etc.)
Although the lighting fixture 100 according to the present invention has been described above based on the embodiments, the present invention is not limited to these embodiments.

For example, in the above embodiment, the optical member 6 is described using the Fresnel lens, but the optical member 6 is not limited to this. The optical member 6 may be, for example, a hybrid lens, a dome lens, a flat plate, or the like.

The dimensions of each component are not limited to those in the embodiment.

Further, in the above embodiment, the COB type LED is used in the light source unit 2, but other light emitting elements may be used. 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 a light source other than a solid light emitting element.

Further, although the reflection member 4 guides the light reflected from the entrance opening 41 to the exit opening 42, the light reflected by the optical member 6 may be reflected and guided to the exit opening 42 again. ..

In addition, it is realized by making various modifications to those skilled in the art by those skilled in the art, or by arbitrarily combining the components and functions in each embodiment without departing from the spirit of the present invention. The present invention also includes the forms.

DESCRIPTION OF SYMBOLS 1 Instrument main body 14 1st step part 15 2nd step part 111 Opening end part 2 Light source part 4 Reflecting member 41 Incident opening part 42 Emitting opening part 45 Collar part 5 Sealing member 51 Annular part 52 Collar part 53 Groove 54 Projection part 511 First surface 512 Second surface 6 Optical member 7 Frame

Claims (5)

A bottomed tubular instrument body having an opening,
A light source section arranged at the bottom of the instrument body,
A tubular member having openings at both ends of an entrance opening and an exit opening, and a brim-shaped portion projecting outward over the entire circumference is provided at an opening edge of the exit opening, and the instrument body is provided. A reflective member disposed inside the
An annular portion having a first surface facing the light source section side and a second surface facing the first surface, and an inner peripheral side surface having a groove open inward over the entire circumference, and a free end. And a resilient seal member provided with a brim portion standing outward from the outer peripheral side surface of the annular portion,
An optical member that closes the emission opening, is fitted into the groove, and is arranged at the opening end of the instrument body;
A tubular member having both ends opened, and a frame body attached to the instrument body by pressing the seal member from the second surface side over the entire circumference,
Lighting equipment. At the opening end, a first step portion is provided over the entire circumference, and a second step portion surrounded by the first step portion is provided,
The lighting fixture according to claim 1, wherein the reflection member is attached to the fixture main body by pressing the flange-shaped portion over the entire circumference of the second step portion by the seal member. The lighting device according to claim 1 or 2, wherein the seal member is provided with a protrusion over the entire circumference of the first surface. The lighting device according to claim 3, wherein the collar portion is provided near the first surface on which the protrusion is provided. The lighting device according to any one of claims 1 to 4, wherein a thickness of the collar portion is thinner than a thickness of the annular portion.

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