JP2024033718A - Lighting fixture and lighting device - Google Patents

Abstract

To provide a lighting fixture and a lighting device capable of suppressing glare light.SOLUTION: A lighting fixture 100 is equipped with a light source 12, a socket 20, a lens 30, and a reflection member 50. The socket 20 holds the light source 12. The reflection member 50 reflects light passing through the lens 30. The socket 20 has an inside surface 22 forming a light passing space S which light emitted from the light source 12 passes. The inside surface 22 has a first edge portion 22b disposed on the lens 30 side in an optical axis direction of the lens 30. The lens 30 has a lens portion 31 opposite to the light source 12, and a collar portion 32 disposed on an outer peripheral portion of the lens portion 31. When viewed from the optical axis direction, a border portion 33 between the lens portion 31 and the collar portion 32 is disposed on an inner side than the first edge portion 22b.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to a lighting fixture and a lighting device.

Conventionally, lighting equipment is known that includes a light source, a holding member that holds the light source, a lens that transmits light emitted from the light source, and a reflective member that reflects the light that has passed through the lens (for example, Patent Document (see 1). Patent Document 1 describes a lighting device that includes an LED chip, an LED holder that holds the LED chip, a lens that transmits light emitted from the LED chip, and a reflector that reflects the light that has passed through the lens. ing. The LED holder is formed into a ring shape. Moreover, the LED holder has a reflective surface that reflects part of the light emitted from the LED chip in the lateral direction toward the lens.

Further, in the lighting device of Patent Document 1, the lens includes a convex lens portion formed in a substantially hemispherical shape and a pedestal portion protruding outward from the periphery of the convex lens portion. The convex lens portion has a diameter larger than the diameter of the reflective surface of the LED holder. Therefore, the light reflected by the reflective surface enters the upper surface of the convex lens section and exits from the convex light exit surface that is the lower surface of the convex lens section.

Japanese Patent Application Publication No. 2014-239008

Incidentally, the curvature of the light exit surface of the convex lens portion is generally designed so that the light emitted from the LED chip and directly incident on the lens forms a predetermined light distribution pattern. Therefore, for example, light that enters the convex lens portion via the reflective surface of the LED holder tends to become glare light. Specifically, for example, light that enters the convex lens section via the reflective surface is refracted at the light exit surface of the convex lens section. At this time, the light is emitted from the light emitting surface and travels toward the reflecting plate, or is once totally reflected on the light emitting surface and then emitted laterally and proceeds toward the reflecting plate. These lights are reflected by the reflector and become glare light.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture and a lighting device that can suppress glare light.

The lighting fixture disclosed in this application includes a light source, a holding member, a lens, and a reflecting member. The holding member holds the light source. The lens transmits light emitted from the light source. The reflecting member reflects the light that has passed through the lens. The holding member has an inner surface that forms a light passage space through which light emitted from the light source passes. The inner surface has a first edge disposed on the lens side in the optical axis direction of the lens. The lens includes a lens portion facing the light source, and a flange portion disposed on an outer periphery of the lens portion. When viewed from the optical axis direction, a boundary between the lens portion and the flange portion is arranged on the inner side compared to the first edge.

In the lighting fixture disclosed in the present application, the boundary portion may be arranged on the outside of the outer periphery of the light source.

In the lighting fixture disclosed in this application, the inner surface may widen from the light source side toward the lens side in the optical axis direction of the lens. The inner surface may further include a second edge disposed on the light source side in the optical axis direction. The boundary portion may be arranged inside compared to the second edge.

The lighting device disclosed in this application includes the above lighting fixture and a power supply device that supplies power to the lighting fixture.

According to the present invention, it is possible to provide a lighting fixture and a lighting device that can suppress glare light.

FIG. 1 is a perspective view showing the configuration of a lighting device including a lighting fixture according to the present embodiment. FIG. 1 is a cross-sectional view showing the structure of a lighting fixture according to the present embodiment. It is a sectional view showing a part of structure of the lighting fixture of this embodiment. It is an exploded view showing the structure of the light source module of the lighting fixture of this embodiment, a socket, a lens, a support member, and a base plate mentioned below. FIG. 2 is a cross-sectional view schematically showing a light distribution pattern of light emitted from a lighting fixture. It is a sectional view showing a part of structure of the lighting fixture of this embodiment. It is a sectional view showing a part of structure of the lighting fixture of the 1st modification of this embodiment. It is a sectional view showing a part of structure of the lighting fixture of the 2nd modification of this embodiment. It is a sectional view showing a part of structure of the lighting fixture of the 3rd modification of this embodiment.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in the drawings, the same or corresponding parts are given the same reference numerals and the description will not be repeated.

A lighting device 1 including a lighting fixture 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG. 1 is a perspective view showing the configuration of a lighting device 1 including a lighting fixture 100 according to the present embodiment. FIG. 2 is a sectional view showing the structure of the lighting fixture 100 according to this embodiment.

As shown in FIGS. 1 and 2, the lighting device 1 of this embodiment includes a lighting fixture 100 and a power supply device 200. Power supply device 200 supplies power to lighting fixture 100.

The lighting fixture 100 is used by being attached to a ceiling or the like. In this embodiment, the lighting fixture 100 is a downlight attached to the ceiling. In the following description, "upper" and "lower" correspond to "upper" and "lower" when the lighting fixture 100 is attached to the ceiling. However, "upper" and "lower" are used only for convenience and do not limit the orientation of the lighting fixture and lighting device according to the present invention when used.

The lighting fixture 100 includes a light source module 10, a socket 20, a lens 30, a support member 40, and a reflection member 50. Note that the socket 20 is an example of the "holding member" of the present invention.

FIG. 3 is a sectional view showing a part of the structure of the lighting fixture 100 of this embodiment. In FIG. 3, a heat sink 70 and a mounting spring 90, which will be described later, are omitted. FIG. 4 is an exploded view showing the structure of the light source module 10, socket 20, lens 30, support member 40, and base plate 60, which will be described later, of the lighting fixture 100 of this embodiment. As shown in FIGS. 3 and 4, the light source module 10 includes a light source 11 and a light source board 12 on which the light source 11 is mounted. Although the light source 11 is not particularly limited, it includes, for example, an LED (Light Emitting Diode) element. In this embodiment, the light source 11 is a planar light source. Further, in this embodiment, the light source 11 is, for example, a circular planar light source having a diameter of 10 mm or more. The light source board 12 has wiring (not shown) electrically connected to the light source 11. The light source board 12 is electrically connected to the power supply device 200 and supplies power from the power supply device 200 to the light source 11 .

Socket 20 holds light source 11. In this embodiment, the socket 20 holds the light source module 10. The socket 20 is fixed to a base plate 60, which will be described later, with screws, adhesive, or the like. The socket 20 has an accommodating portion 21 that accommodates the light source module 10 and an inner surface 22 that is arranged around the light source 11. The inner surface 22 forms a light passage space S through which the light emitted from the light source 11 passes.

Specifically, the socket 20 has an upper surface 20a and a lower surface 20b. The accommodating portion 21 is arranged on the upper surface 20a. The housing portion 21 has substantially the same shape as the light source substrate 12 . Further, the socket 20 has a through hole 23 that penetrates from the accommodating portion 21 to the lower surface 20b. The inner surface 22 forms a through hole 23 .

In this embodiment, the inner surface 22 is formed by an inclined surface. The inner surface 22 expands from the light source 11 side toward the lens 30 side in the optical axis direction of the lens 30 . In this embodiment, the inner surface 22 expands from the upper side toward the lower side in the vertical direction. The inner surface 22 has substantially the same shape as the side surface of a truncated cone. The through hole 23 has a substantially truncated conical shape. Moreover, in this embodiment, the inner surface 22 is a reflective surface. Inner surface 22 reflects light from light source 11 to lens 30 . Note that the optical axis direction is the direction in which the optical axis extends. In this embodiment, the optical axis is a virtual line passing through the center of the lens 30. Further, in this embodiment, the optical axis is a straight line extending in the vertical direction, and passes through the center of the light source 11, the center of the lens 30, and the center of the inner surface 22.

The socket 20 is made of resin, for example, although it is not particularly limited. Further, the socket 20 is formed of, for example, white resin in order to increase reflectance.

The lens 30 transmits the light emitted from the light source 11. The lens 30 is made of transparent glass or resin, for example. The lens 30 is arranged below the socket 20 (on the light output direction side). The lens 30 includes a lens portion 31 facing the light source 11 and a flange portion 32 disposed on the outer periphery of the lens portion 31. The collar portion 32 has a substantially flat plate shape.

FIG. 5 is a cross-sectional view schematically showing a light distribution pattern of light emitted from the lighting fixture 100 of this embodiment. Note that FIG. 5 shows a light distribution pattern of light having an intensity of 50% or more of the maximum intensity light emitted from the lighting fixture 100. As shown in FIG. 5, the lens section 31 refracts the light from the light source 11 to form a predetermined light distribution pattern. In other words, the lens section 31 controls the spread angle of light. The curvature of the light exit surface 31a of the lens portion 31 is set so that the light emitted from the light source 11 and directly incident on the lens 30 forms a predetermined light distribution pattern. Further, in this embodiment, the lens portion 31 has a convex shape that protrudes to one side (lower side) in the optical axis direction, which is the side opposite to the light source 11. Further, in this embodiment, the lens portion 31 has a substantially hemispherical shape. The lens portion 31 has a diameter smaller than the diameter of the through hole 23.

As shown in FIGS. 3 and 4, the collar portion 32 has, for example, an annular shape. The collar portion 32 has a diameter larger than the diameter of the through hole 23. The lens portion 31 and the flange portion 32 cover the lower part of the through hole 23 .

The support member 40 supports the lens 30. Specifically, the support member 40 includes a socket accommodating portion 41 that accommodates the socket 20 and a support portion 42 that supports the lens 30. The socket accommodating portion 41 has substantially the same shape as the socket 20. The support portion 42 supports the flange portion 32 of the lens 30. The support portion 42 surrounds the lens portion 31 . The support portion 42 has a circumferential shape when viewed from the optical axis direction, and a hole 43 in which the lens portion 31 is disposed is formed inside the support portion 42 .

The reflective member 50 is arranged around the lens 30. In this embodiment, the reflective member 50 is arranged around the lens portion 31 of the lens 30. The reflecting member 50 reflects the light that has passed through the lens 30. Specifically, the reflecting member 50 has a reflecting surface 51 that reflects the light that has passed through the lens 30. The reflective surface 51 is formed of an inclined surface and reflects the light from the lens 30 downward. The reflective surface 51 spreads from the light source 11 side in the optical axis direction of the lens 30 toward the opposite side from the light source 11. In this embodiment, the reflective surface 51 expands from the upper side toward the lower side in the vertical direction. The reflective surface 51 has substantially the same shape as the side surface of a truncated cone.

The reflective member 50 is made of, for example, resin, although it is not particularly limited. Further, the socket 20 is formed of, for example, white resin in order to increase reflectance. Note that the reflective member 50 may be made of metal, for example. Further, the reflecting member 50 is fixed in a predetermined position by a leaf spring (not shown) disposed on a frame 80, which will be described later. Note that the reflective member 50 may be fixed to the support member 40 or a base plate 60 (described later) using screws, adhesive, the frame 80, or the like.

As shown in FIG. 2, the lighting fixture 100 further includes a base plate 60, a heat sink 70, a frame 80, and a mounting spring 90.

The base plate 60 is formed of, for example, a metal plate having a predetermined thickness, although it is not particularly limited. A heat sink 70 is fixed to the base plate 60 using screws or the like (not shown). Further, the support member 40, the frame 80, the attachment spring 90, etc. are fixed to the base plate 60 using screws or the like. In this embodiment, the frame 80 is fixed to the base plate 60 using screws 101 with the support member 40 and the mounting spring 90 disposed between the base plate 60 and the frame 80. Note that the support member 40 and the attachment spring 90 may be fixed to the base plate 60 separately from the frame 80.

The heat sink 70 is made of metal, for example. The heat sink 70 has, for example, a plurality of fins. The heat sink 70 radiates heat generated by the light source module 10 into the air.

The frame 80 surrounds the reflective member 50 . The frame body 80 includes a substantially cylindrical tube portion 81, a mounting portion 82 that protrudes radially inward from the upper end of the tube portion 81, and a restriction portion 83 that protrudes radially outward from the lower end of the tube portion 81. Note that in this embodiment, the radial direction is a direction perpendicular to the optical axis direction. The cylindrical portion 81 has a diameter smaller than the inner diameter of a mounting hole (not shown) in the ceiling. The cylindrical portion 81 is inserted into a mounting hole (not shown). The mounting portion 82 is fixed to the base plate 60 using screws 101. The regulating portion 83 has a diameter larger than the inner diameter of a mounting hole (not shown) in the ceiling. The regulating portion 83 is arranged so as to cover the lower part of the gap between the outer circumferential surface of the cylindrical portion 81 and the inner circumferential surface of the attachment hole (not shown). The upper surface 83a of the regulating portion 83 contacts the lower surface of the ceiling and regulates upward movement of the lighting fixture 100.

The attachment spring 90 is a member for attaching the lighting fixture 100 to an attachment hole (not shown). For example, a plurality (here, two) of attachment springs 90 are provided. The attachment spring 90 is formed of, for example, a plate spring. The attachment spring 90 has, for example, a base end portion 91 disposed along the frame body 80 and an engaging portion 92 extending radially outward from the lower end of the base end portion 91. The engaging portion 92 extends upward toward the tip (radially outward). When attaching the lighting fixture 100 to the ceiling, the worker inserts the lighting fixture 100 into a mounting hole (not shown) while pressing the engaging portion 92 radially inward to elastically deform the mounting spring 90. . When the operator releases the pressure on the mounting spring 90, the mounting spring 90 expands due to its elastic force, the ceiling is sandwiched between the mounting spring 90 and the regulating portion 83, and the lighting fixture 100 is fixed to the ceiling.

Next, detailed structures of the socket 20, lens 30, support member 40, and reflection member 50 of the lighting fixture 100 will be described with reference to FIGS. 3 to 6. FIG. 6 is a cross-sectional view showing a part of the structure of the lighting fixture 100 of this embodiment.

As shown in FIGS. 3 and 4, the inner surface 22 has a second edge 22a disposed on the light source 11 side (upper side) in the optical axis direction and a second edge 22a disposed on the lens 30 side (lower side) in the optical axis direction. It has a first edge 22b. The second edge 22a is the upper end of the inner surface 22, and the first edge 22b is the lower end of the inner surface 22.

When viewed from the optical axis direction of the lens 30, the boundary portion 33 between the lens portion 31 and the flange portion 32 is arranged radially inward compared to the first edge portion 22b. In other words, at least a portion of the collar portion 32 is arranged radially inward than the first edge portion 22b. Therefore, for example, the light L1 (see FIG. 6) that is emitted from the light source 11 and reflected downward by the inner surface 22 passes through the flange 32 and travels downward. Since the flange portion 32 has a substantially flat plate shape, the light L1 transmitted through the flange portion 32 travels downward without heading toward the reflective surface 51. Therefore, it is possible to suppress the light L1 emitted from the light source 11 and reflected by the inner surface 22 from becoming glare light. As a result, the lighting fixture 100 can suppress the generation of glare light.

Note that even if the light is emitted from the light source 11 and reflected on a surface other than the inner surface 22, the light that enters the flange 32 in a downward direction passes through the flange 32 and travels downward. Then, the light travels downward without heading toward the reflective surface 51. Therefore, the light emitted from the light source 11 and reflected on surfaces other than the inner surface 22 can be suppressed from becoming glare light. As a result, the lighting fixture 100 can suppress the generation of glare light.

The boundary portion 33 is arranged on the outside compared to the outer peripheral edge 11a of the light source 11. Therefore, substantially all of the light vertically emitted from the light source 11 enters the lens portion 31. Therefore, a predetermined light distribution pattern can be easily formed using the lens 30.

The boundary portion 33 is arranged radially inward compared to the second edge 22a. Therefore, for example, more light L1 (see FIG. 6) passes through the collar portion 32 than when the boundary portion 33 is disposed radially outward compared to the second edge portion 22a. Therefore, for example, it is possible to further suppress the light L1 from becoming glare light.

Further, the support portion 42 of the support member 40 has an inner end portion 42a that is a radially inner end portion. The inner end 42a is arranged radially outward compared to the first edge 22b of the inner surface 22. Therefore, for example, the light L1 (see FIG. 6) emitted from the light source 11 and reflected downward by the inner surface 22 can be prevented from being blocked by the support member 40. Therefore, it is possible to suppress a decrease in light utilization efficiency.

The reflective surface 51 of the reflective member 50 has an end 51a disposed on one side (lower side) in the optical axis direction and an end 51b disposed on the other side (upper side) in the optical axis direction. A surface 32a on one side (lower side) in the optical axis direction of the flange portion 32 is arranged on the other side (upper side) in the optical axis direction compared to the end portion 51b. Therefore, unlike the case where the surface 32a of the flange portion 32 is arranged on one side (lower side) in the optical axis direction compared to the end portion 51b, the lens 30 can be easily supported by the support member 40. Note that even when the lens 30 is supported by the reflective member 50 as described later, the lens can be 30 can be easily supported.

Further, the lens portion 31 has a top portion 31b disposed at one end (lower side) in the optical axis direction. The top portion 31b is arranged on one side (lower side) in the optical axis direction compared to the end portion 51b. Therefore, since the curvature of the lens portion 31 can be increased (the radius of curvature can be decreased), it is possible to suppress the spread angle (also referred to as the directivity angle or light distribution angle) of the light emitted from the lens portion 31 from becoming too large (see FIG. 5). ).

A surface 32b on the other side (upper side) in the optical axis direction of the flange portion 32 is arranged on one side (lower side) in the optical axis direction compared to the first edge 22b of the inner surface 22. In this embodiment, the surface 32b is in contact with the lower surface of the support member 40. In this way, by arranging the surface 32b on one side (lower side) in the optical axis direction compared to the first edge 22b of the inner surface 22, the flange 32 has a diameter larger than that of the through hole 23. It can be formed as follows. Therefore, the support member 40 can support the lens 30 at a position where it does not block light.

In addition, in a cross section passing through the center of the reflecting member 50 (see FIG. 6), a straight line connecting end portions 51a and 51b facing each other in a direction intersecting the optical axis direction (left-right direction in FIG. 6) is defined as m1. . In this case, in this embodiment, the entire lens section 31 is arranged above the straight line m1. Therefore, the glare cut angle (also referred to as the shading angle) can be increased.

Further, the support portion 42 has an inner surface 42b that forms a hole 43. The above-mentioned inner end 42a is the upper end of the inner surface 42b. In a cross section passing through the center of the reflecting member 50 (see FIG. 6), a straight line connecting the end 51a and the inner end 42a facing in the direction intersecting the optical axis direction (left-right direction in FIG. 6) is defined as m2. do. In this case, in this embodiment, the entire lens portion 31 is arranged above the straight line m2. Therefore, the glare cut angle can be made larger.

As described above with reference to FIGS. 1 to 6, when viewed from the optical axis direction of the lens 30, the boundary portion 33 between the lens portion 31 and the flange portion 32 has a diameter larger than that of the first edge portion 22b. placed on the inside. Therefore, for example, the light L1 emitted from the light source 11 and reflected downward by the inner surface 22 passes through the flange 32 and travels downward. The light L1 that has passed through the flange portion 32 travels downward without heading toward the reflective surface 51. Therefore, for example, it is possible to suppress the light L1 emitted from the light source 11 and reflected by the inner surface 22 from becoming glare light. As a result, the lighting fixture 100 can suppress the generation of glare light.

Modifications of this embodiment will be described below.

(First modification)
A first modification of this embodiment will be described with reference to FIG. 7. FIG. 7 is a sectional view showing a part of the structure of a lighting fixture 100 according to a first modification of the present embodiment. In a first modification, an example will be described in which the lens 30 is arranged at a position different from that of the embodiment shown in FIGS. 1 to 6.

As shown in FIG. 7, the lens 30 is supported by a reflective member 50. Specifically, the flange portion 32 of the lens 30 is arranged between the reflective member 50 and the support member 40. Also in this case, the lens 30 can be easily supported by the reflective member 50. Note that in the first modification, the reflective member 50 is an example of the "support member" of the present invention.

Further, in the first modification, the entire lens portion 31 is arranged above the straight line m1 (see FIG. 6), similar to the embodiments shown in FIGS. 1 to 6. Therefore, the glare cut angle can be increased.

Other structures and effects of the first modification are similar to those of the above embodiment.

(Second modification)
A second modification of this embodiment will be described with reference to FIG. 8. FIG. 8 is a sectional view showing a part of the structure of a lighting fixture 100 according to a second modification of the present embodiment. In a second modification, an example will be described in which the flange portion 32 of the lens 30 has a shape different from that of the embodiment shown in FIGS. 1 to 6.

As shown in FIG. 8, in the second modification, the plate-shaped collar portion 32 has a positioning portion. Specifically, the collar portion 32 has one or more convex portions 32c. In the second modification, one convex portion 32c is provided so as to go around the outer peripheral edge of the collar portion 32. Note that a plurality of convex portions 32c may be provided, for example, at equal angular intervals or at predetermined angular intervals.

In the second modification, the convex portion 32c protrudes downward. The support portion 42 of the support member 40 has a concave portion 42c that accommodates the convex portion 32c. By fitting the convex portion 32c into the concave portion 42c, the flange portion 32 is positioned in a direction (horizontal direction here) intersecting the optical axis direction.

The convex portion 32c is disposed in the collar portion 32 at a position radially outer than the first edge 22b. Therefore, for example, the light L1 emitted from the light source 11 and reflected downward by the inner surface 22 can be suppressed from entering the convex portion 32c. Therefore, for example, when the light L1 passes through the collar portion 32, it is possible to suppress the traveling direction of the light L1 from being changed, for example, toward the inner surface 22.

In the second modification, an example in which the convex portion 32c protrudes downward is shown, but the convex portion 32c may protrude upward, for example. In this case, for example, the socket 20 may have a recess that accommodates the protrusion 32c.

Further, in the second modification example, the collar portion 32 has a convex portion 32c as a positioning portion, but the collar portion 32 may have a recess portion as a positioning portion. In this case, for example, the support member 40 or the socket 20 may have a convex portion accommodated in the concave portion of the collar portion 32.

Other structures and effects of the second modification are similar to those of the above embodiment.

(Third modification)
A third modification of this embodiment will be described with reference to FIG. 9. FIG. 9 is a sectional view showing a part of the structure of a lighting fixture 100 according to a third modification of the present embodiment. In a third modification, an example in which the reflective surface 51 has a shape different from that of the embodiment shown in FIGS. 1 to 6 will be described.

As shown in FIG. 9, the reflective surface 51 is curved in a cross section passing through the center of the reflective member 50. In the third modification, the reflective surface 51 is curved so as to protrude radially inward.

The other structure of the third modification is the same as that of the above embodiment.

The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and can be implemented in various forms without departing from the spirit thereof. Moreover, various inventions can be formed by appropriately combining the plurality of components disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiments. Furthermore, components of different embodiments may be combined as appropriate. The drawings mainly show each component schematically for ease of understanding, and the thickness, length, number, spacing, etc. of each component shown in the diagram may differ from the actual one for convenience of drawing. It may be different. Furthermore, the materials, shapes, dimensions, etc. of each component shown in the above embodiments are merely examples, and are not particularly limited, and various changes can be made without substantially departing from the effects of the present invention. be.

For example, in the embodiment described above, an example is shown in which the lens portion 31 has a convex shape protruding to one side (lower side) in the optical axis direction, but the present invention is not limited to this. For example, the lens portion may have a convex shape that protrudes toward the other side (upper side) in the optical axis direction. Further, the lens portion may have a concave shape, for example. Further, the lens portion may have a shape that is a combination of a convex shape and a concave shape, for example. Further, the lens portion may include, for example, a Fresnel lens.

Further, in the above embodiment, an example is shown in which the inner surface 22 is a reflective surface, but the present invention is not limited to this, and the inner surface 22 does not need to be a reflective surface.

Furthermore, in the embodiment described above, an example was shown in which the inner surface 22 expands from the light source 11 side toward the lens 30 side in the optical axis direction, but the present invention is not limited to this. For example, the inner surface 22 may have substantially the same shape as the side surface of a cylinder.

Further, in the above embodiment, an example in which the flange portion 32 has a substantially flat plate shape has been described. In other words, an example is shown in which the surface 32a and the surface 32b of the collar portion 32 are substantially horizontal surfaces. However, the present invention is not limited to this. For example, the entire top surface of the lens 30 may be slightly curved in a concave or convex manner. In this case, the surface 32a of the collar portion 32 may be curved substantially parallel to the surface 32b, or may be a substantially horizontal surface. Further, the radius of curvature of the upper surface of the lens 30 is, for example, 10 times or more the radius of curvature of the lens portion 31.

The present invention is useful in the field of lighting fixtures and lighting devices.

1: Lighting device 11: Light source 11a: Outer periphery 20: Socket (holding member)
22: Inner surface 22a: Second edge 22b: First edge 30: Lens 31: Lens portion 32: Flange portion 33: Boundary portion 40: Support member 50: Reflective member 51: Reflective surface 100: Lighting fixture 200: Power source Device S: Light passing space

Claims (4)

a light source and
a holding member that holds the light source;
a lens that transmits the light emitted from the light source;
and a reflective member that reflects the light transmitted through the lens,
The holding member has an inner surface that forms a light passage space through which light emitted from the light source passes;
The inner surface has a first edge disposed on the lens side in the optical axis direction of the lens,
The lens has a lens portion facing the light source and a flange portion disposed on an outer peripheral portion of the lens portion,
The lighting fixture, in which a boundary between the lens portion and the flange is located on the inner side compared to the first edge when viewed from the optical axis direction. The lighting fixture according to claim 1, wherein the boundary portion is located outside of an outer peripheral edge of the light source. The inner surface is
It spreads from the light source side toward the lens side in the optical axis direction of the lens,
further comprising a second edge disposed on the light source side in the optical axis direction,
The lighting fixture according to claim 1 or 2, wherein the boundary portion is located inside compared to the second edge. The lighting fixture according to claim 1;
A lighting device comprising: a power supply device that supplies power to the lighting device.

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