JP2020013643A - Light guide body - Google Patents

Abstract

To provide a light guide body capable of indicating a position of an object to be installed with a small number of light sources, and also illuminating the inside thereof.SOLUTION: A light guide body 1 that emits light by propagating light thereinside, has: a light capture unit 10 that captures light emitted from a light emitting element 30; a first reflection surface 11 and a second reflection surface 12, which can totally reflect the light captured from the light capture unit 10; a light emitting unit 13 that emits light reflected by the first reflection surface 11 to the outside for illumination; and a sign part 14 that propagates the light reflected by the second reflection surface 12 to the inside and visually recognizes its own position by light emission.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a light guide.

  2. Description of the Related Art Conventionally, an illumination device used for a power supply unit for charging a battery of an electric vehicle or a hybrid vehicle has been known (for example, see Patent Documents 1 and 2).

  The vehicle lighting device described in Patent Literature 1 includes a first light emitting unit for notifying a user of a position of a power supply unit, and a second light emitting unit for illuminating a power supply port in a housing of the power supply unit.

  The lighting unit described in Patent Literature 2 has a light guide member including an annular light emitting unit provided in the power supply port for notifying a user of the position of the power supply port in the housing of the power supply unit.

JP 2018-43744 A JP 2012-178230 A

  In the vehicle lighting device described in Patent Literature 1, a plurality of light sources are required because light sources are used for the first light emitting unit and the second light emitting unit. The lighting unit described in Patent Literature 2 has a function of notifying a user of a position of a power supply port in a housing of the power supply unit, but does not have other functions such as indicating the position of the power supply unit.

  An object of the present invention is to provide a light guide that can realize an illumination structure that can indicate the position of an installation target and illuminate the inside of the installation target using a small number of light sources.

  One embodiment of the present invention provides the following light guides [1] to [7] to achieve the above object.

[1] A light guide that emits light by propagating light therein, wherein a light capturing unit that captures light emitted from a light source, and that the light that is captured from the light capturing unit is totally reflected. A first reflecting surface and a second reflecting surface that can be formed, a light emitting unit that emits light reflected by the first reflecting surface to the outside for illumination, and light reflected by the second reflecting surface. And a marker for causing the position of the light guide to be visually recognized by light emission.

[2] A light guide to be installed on an installation object having a concave portion, wherein the marker portion indicates a position of an opening of the concave portion when installed on the installation object, and the light emitting portion. The light guide according to the above [1], wherein the inside of the concave portion can be illuminated with light emitted from the light guide.

[3] An annular portion including the first reflection surface, the second reflection surface, the light emitting portion, and the marker portion, wherein the second reflection surface faces in a different direction. Light reflected by one of the two reflecting surfaces from the light capturing portion travels in one circumferential direction in the ring-shaped portion and is captured from the light capturing portion. The light guide according to [1] or [2], wherein the light reflected by the other of the two reflecting surfaces travels in the other circumferential direction in the ring-shaped portion.

[4] A linear portion including the first reflection surface, the second reflection surface, the light emitting portion, and the marker portion, wherein the second reflection surface faces in a different direction. Light reflected from one of the two reflecting surfaces, which is taken in from the light capturing portion and travels toward one end in the linear portion, and The light guide according to [1] or [2], wherein the light taken in and reflected by the other of the two reflection surfaces travels in the linear portion toward the other end.

[5] The above-mentioned [3] or [4], wherein the two reflecting surfaces are located with the first reflecting surface interposed therebetween, and one side of each of the two reflecting surfaces overlaps with one side of the first reflecting surface. ] The light guide of [].

[6] A light guide used for a power supply unit in which a power supply port is provided in a housing, wherein the marker functions as a marker indicating a position of an opening of the housing, and the light emitting unit includes the light emitting unit. The light guide according to any one of the above [1] to [5], which functions as a light source that illuminates the power supply port from above.

[7] A light guide used for a storage container having a concave storage portion, wherein the marker portion functions as a marker indicating a position of an opening of the storage portion, and the light emitting portion is the storage portion. The light guide according to any one of the above [1] to [5], which functions as a light source that illuminates the inside of the device from above.

  ADVANTAGE OF THE INVENTION According to this invention, the light guide which can implement | achieve the illumination structure which can show the position of an installation target object and illuminate the inside using a small number of light sources can be provided.

FIG. 1A is a perspective view of a light guide according to the first embodiment, and FIG. 1B is an enlarged view of a part of FIG. 1A. FIG. 2 is a plan view of the light guide 1 according to the first embodiment. FIG. 3A is a side view of the light guide according to the first embodiment, and FIG. 3B is a vertical view of the light guide taken along a cutting line AA shown in FIG. It is sectional drawing. FIG. 4 is a perspective view of a power supply unit of an electric vehicle or the like in which the light guide according to the first embodiment is installed. FIGS. 5A and 5B are a perspective view, a plan view, and a cross-sectional view, respectively, of a power supply unit 5 such as an electric vehicle in which the light guide according to the first embodiment is installed. FIG. 6 is a perspective view of a light guide according to the second embodiment. FIGS. 7A and 7B are perspective views of a console box provided with a light guide according to the second embodiment. FIG. 8 is a perspective view in which a portion of the light guide covered by the console box and not visible is shown by a dotted line to show the positional relationship between the console box and the light guide according to the second embodiment. FIG. 9 is a perspective view of a modification of the light guide according to the second embodiment.

[First Embodiment]
(Configuration of light guide)
FIG. 1A is a perspective view of a light guide 1 according to the first embodiment, and FIG. 1B is an enlarged view of a part of FIG. 1A. FIG. 2 is a plan view of the light guide 1 according to the first embodiment. FIG. 3A is a side view of the light guide 1 according to the first embodiment, and FIG. 3B is a light guide cut along a cutting line AA shown in FIG. FIG. 2 is a vertical sectional view of the body 1.

  Hereinafter, the front side (upper side in FIG. 3) of the light guide 1 in FIG. 1 is referred to as the upper side of the light guide 1, and the back side (lower side in FIG. 3) of the light guide 1 in FIG. Explanation will be given as the lower side.

  The light guide 1 is a light guide that emits light by propagating light therein, and includes a light capturing unit 10 that captures light emitted from the light emitting element 30 that is a light source, and a light capturing unit 10 that captures light from the light capturing unit 10. A first reflecting surface 11 and a second reflecting surface 12 (12a, 12b) for reflecting the reflected light, and a light emitting unit 13 for emitting the light reflected by the first reflecting surface 11 to the outside for illumination. And a marker section 14 for transmitting the light reflected by the second reflection surface 12 to the inside to allow the user to visually recognize its own position by emitting light.

  The light guide 1 has a ring-shaped portion including a first reflecting surface 11, a second reflecting surface 12, a light emitting unit 13, and a sign unit 14. In the example shown in FIGS. 1 to 3, the light guide 1 has a ring shape as a whole. The light guide 1 is made of a transparent material such as acrylic or polycarbonate, and is typically colorless. The emission color of the light guide 1 is not particularly limited as long as it does not violate the regulations, and is typically white.

  The first reflection surface 11 is provided at an angle such that light that is taken in from the light intake unit 10 and enters the first reflection surface 11 can be totally reflected (mostly totally reflected). . In FIG. 3B, a dotted arrow indicates that the light taken in from the light take-in unit 10 and reflected by the first reflection surface 11 is reflected by the reflection surface 15, and is the light emission unit 13 which is a light take-out surface. FIG. 3 schematically shows the state of being ejected from the camera. The reflecting surface 15 is provided at an angle such that the light reflected by the first reflecting surface 11 and incident on the reflecting surface 15 can be totally reflected (mostly totally reflected).

  The number of reflecting surfaces for guiding the light reflected by the first reflecting surface 11 to the light emitting unit 13 may be two or more, or may be zero. That is, the light taken in from the light taking-in unit 10 and reflected on the first reflection surface 11 is directly or indirectly emitted from the light emitting unit 13.

  The light emitting portion 13 serving as the light extraction surface may be subjected to a graining process for improving the diffusivity of the emitted light. The angle of the light emitting unit 13 is adjusted according to the angle of light emitted from the desired light emitting unit 13 within a range in which light incident on the light emitting unit 13 can be transmitted efficiently.

  The light emitted from the light emitting section 13 travels in a direction inclined with respect to a plane parallel to the ring-shaped portion of the light guide 1. For this reason, the area below the light guide 1 can be illuminated by the light emitted from the light emitting section 13.

  The light emitting portion 13 and the reflection surface 15 are surfaces that constitute one projection provided on the ring-shaped portion of the light guide 1.

  The second reflecting surface 12 (12a, 12b) has such an angle that the light that is taken in from the light take-in section 10 and enters the second reflecting surface 12 can be totally reflected (mostly totally reflected). It is provided in. The second reflecting surface 12 (12a, 12b) reflects light efficiently in the in-plane direction of the ring-shaped portion of the light guide 1, so that the second reflection surface 12 (12a, 12b) has a surface parallel to the ring-shaped portion of the light guide 1. It is preferably substantially perpendicular to this.

  The second reflection surface 12 includes a second reflection surface 12a and a second reflection surface 12b which are two reflection surfaces facing different directions. The light taken in from the light taking-in section 10 and reflected on one of the second reflection surface 12a and the second reflection surface 12b travels in one annular direction in the ring-shaped portion of the light guide 1, and is taken out. The light that is taken in from the notch 10 and reflected by the other of the second reflection surface 12a and the second reflection surface 12b travels in the annular shape of the light guide 1 in the other circumferential direction.

  The dotted arrow in FIG. 2 indicates that the light taken in from the light take-in unit 10 and reflected on the second reflection surface 12a travels counterclockwise in the ring-shaped portion of the light guide 1, and the light take-in unit 10 The light reflected from the second reflection surface 12b and reflected from the second reflection surface 12b schematically travels clockwise in the ring-shaped portion of the light guide 1. FIG.

  The second reflection surface 12a and the second reflection surface 12b are concavely curved in order to totally reflect most of the light taken in from the light take-in unit 10 and incident on the second reflection surface 12. Alternatively, it is preferable that the plane be a plane whose angle changes in multiple stages.

  The first reflection surface 11, the second reflection surface 12a, and the second reflection surface 12b are surfaces that constitute one groove provided in the ring-shaped portion of the light guide 1, respectively. The second reflection surface 12a and the second reflection surface 12b are located with the first reflection surface 11 interposed therebetween, and one side of each of them overlaps with one side of the first reflection surface 11. With such a structure, the reflection structure including the first reflection surface 11, the second reflection surface 12a, and the second reflection surface 12b can be accommodated in a small area.

  In the example shown in FIGS. 1 to 3, the light capturing portion 10 is provided on the outer side surface of the light guide 1 having a ring shape, and the light extracting surface of the light emitting element 30 faces the light capturing portion 10. The light emitting element 30 is provided. In this case, since the first reflection surface 11 and the second reflection surface 12 (12a, 12b) can directly reflect the light taken in from the light intake unit 10, the first reflection surface 11 and the second Light loss until the light enters the second reflection surface 12 can be reduced.

  As shown in FIGS. 1A and 2, it is preferable that the width of the ring-shaped portion of the light guide 1 decreases as the distance from the light intake unit 10 increases. Thus, it is possible to suppress a decrease in brightness in a region distant from the light capturing unit 10 in which the amount of light decreases, and to improve uniformity in brightness of the entire ring-shaped portion of the light guide 1. The same effect can be obtained when the thickness is reduced as the distance from the light capturing unit 10 increases.

  The light emitting element 30 is typically an LED element, and is mounted on a substrate 31 having wiring for supplying power to the light emitting element 30. The substrate 31 is fixed together with the light guide 1 to an installation target on which the light guide 1 is installed (for example, a power supply unit such as an electric vehicle described later).

  It is preferable that the number of the light emitting elements 30 is small, for example, 1 to 2 for the manufacturing cost and energy saving of the lighting structure.

  The marker part 14 is the whole or a part of the ring-shaped part of the light guide 1, and the part exposed when the light guide 1 is installed on the installation target, that is, the user of the installation target recognizes the light emission. It is a part that can be done.

  As shown in FIG. 3B, the inner side surface 16 of the ring-shaped portion of the light guide 1 has a slope such that the width of the ring-shaped portion of the light guide 1 increases from bottom to top. Is preferred. This makes it possible to increase the ratio of the light extracted from the sign portion 14 to the light extracted in the upward direction, so that the sign portion 14 can be easily recognized. In addition, by forming a grain (fine unevenness) or a lens cut on the bottom surface or side surface of the ring-shaped portion of the light guide 1, the proportion of the light extracted from the sign portion 14 in the upward direction is increased. You can also. Further, in order to further increase the ratio of light extracted upward, a reflective sheet may be attached to the bottom surface or side surface of the ring-shaped portion of the light guide 1 and used together with graining or lens cutting.

  Although the ring-shaped portion of the light guide 1 shown in FIGS. 1A and 2 is circular, the shape is not limited to a circle, and may vary depending on the shape of the object on which the light guide 1 is installed. A preferable shape can be appropriately selected.

(Example of using light guide)
Hereinafter, as an example of use of the light guide 1, a case where the light guide 1 is used as a power supply unit for charging a battery of an electric vehicle or a hybrid vehicle will be described.

  4, 5A, and 5B are a perspective view, a plan view, and a cross-sectional view, respectively, of a power supply unit 5 such as an electric vehicle on which the light guide 1 is installed. FIG. 5B is a vertical cross-sectional view of the power supply unit 5 and the light guide 1 taken along a cutting line BB shown in FIG. FIGS. 4, 5A, and 5B are schematic views showing the positional relationship between the power supply unit 5 and the light guide 1, and do not show the specific shape of the light guide 1. Absent.

  The power supply unit 5 is provided on a body (outer surface of the vehicle body) 55 of a vehicle such as an electric vehicle, has a housing 50 as a concave portion and a lid 52 as a lid thereof, and a power supply port 53 is installed inside the housing 50. I have. By connecting the power supply connector 54 to the power supply port 53, power is supplied from the outside, and the battery of the vehicle can be charged.

  As shown in FIGS. 4, 5A and 5B, the light guide 1 is installed inside the housing 50 so that the ring-shaped portion is along the edge of the opening 51 of the housing 50. . In this embodiment, the entire ring-shaped portion of the light guide 1 is exposed and functions as the marker 14. In addition, a part of the ring-shaped portion of the light guide 1 is covered with a case for preventing the light guide 1 from being damaged or waterproof, a member of the power supply unit 5, and the like, and the exposed portion functions as the sign unit 14. There may be.

  Since the marker 14 is disposed along the edge of the opening 51 of the housing 50, the marker 14 functions as a marker indicating the position of the opening 51 of the housing 50 when the marker 14 emits light. Therefore, the user of the power supply unit 5 can easily recognize the position of the housing 50 even in an environment where the brightness is insufficient such as at night. L1 in FIG. 5B schematically represents light emitted from the marker 14 toward the upper side (user side) of the light guide 1.

  The marker 14 is not necessarily required to be along the edge of the opening 51, but is arranged along the edge of the opening 51 in order to more accurately indicate the position of the opening 51. Is preferred.

  On the other hand, the light emitted from the light emitting portion 13 below the light guide 1 can illuminate the power supply port 53 in the housing 50. That is, the light emitting unit 13 functions as a light source that illuminates the power supply port 53 from above. Therefore, the user of the power supply unit 5 can easily recognize the position of the power supply port 53 in the housing 50 even in an environment where the brightness is insufficient such as at night. L2 in FIG. 5B schematically represents light emitted from the light emitting section 13 to below the light guide 1 (on the side of the power supply port 53).

[Second embodiment]
(Configuration of light guide)
FIG. 6 is a perspective view of the light guide 2 according to the second embodiment. Hereinafter, the front side of the light guide 2 in FIG. 6 will be described as the upper side of the light guide 2, and the back side of the light guide 1 in FIG. 6 will be described as the lower side of the light guide 2.

  The light guide 2 is a light guide that emits light by propagating light therein, and includes a light capturing unit 20 that captures light emitted from a light source and a light capturing unit that reflects light captured from the light capturing unit 20. A first reflecting surface 21 and a second reflecting surface 22 (22a, 22b), a light emitting unit 23 that emits light reflected by the first reflecting surface 21 to the outside for illumination, and a second A sign portion 24 for transmitting the light reflected by the reflection surface 22 to the inside to allow the user to visually recognize his / her position by emitting light.

  The light guide 2 has a linear portion including the first reflection surface 21, the second reflection surface 22, the light exit portion 23, and the marker portion 24 and having both ends 25 a and 25 b at both ends. In the example shown in FIG. 6, the light guide 2 has a U-shaped linear shape as a whole. The light guide 2 is made of a transparent material such as acrylic or polycarbonate, and is typically colorless, like the light guide 1 according to the first embodiment.

  The light guide 2 is common to the light guide 1 according to the first embodiment in most features other than having a linear portion. Specifically, the light capturing unit 20, the first reflecting surface 21, the second reflecting surface 22 (22a, 22b), and the light emitting unit 23 of the light guide 2 serve to It has the same shape and function as the portion 10, the first reflecting surface 11, the second reflecting surface 12 (12a, 12b), and the light emitting portion 13.

  The first reflection surface 21 is provided at an angle such that light that is taken in from the light take-in portion 20 and enters the first reflection surface 21 can be totally reflected (mostly totally reflected). . The light taken in from the light take-in part 20 and reflected by the first reflection surface 21 is directly or indirectly emitted from the light emission part 23 which is a light take-out surface.

  The light emitted from the light emitting section 23 travels in a direction inclined with respect to a plane parallel to the linear portion of the light guide 2. For this reason, the area below the light guide 2 can be illuminated by the light emitted from the light emitting section 23.

  The reflection surfaces (not shown) corresponding to the light emitting portion 23 and the reflection surface 15 of the light guide 1 are surfaces that constitute one projection provided on the linear portion of the light guide 2, respectively.

  The second reflection surface 22 (22a, 22b) has an angle such that light that is taken in from the light take-in portion 20 and enters the second reflection surface 22 can be totally reflected (mostly totally reflected). It is provided in.

  The second reflection surface 22 includes a second reflection surface 22a and a second reflection surface 22b, which are two reflection surfaces facing different directions. The light taken in from the light take-in part 20 and reflected by the second reflection surface 22a travels in the linear portion of the light guide 2 toward the end part 25a, which is one end, and enters the light take-in part. The light taken in from the light source 20 and reflected by the second reflection surface 12b travels in the linear portion of the light guide 2 toward the other end 25b.

  The second reflection surface 22a and the second reflection surface 22b are concavely curved in order to totally reflect most of the light taken in from the light take-in unit 20 and incident on the second reflection surface 22, Alternatively, it is preferable that the plane be a plane whose angle changes in multiple stages.

  The first reflection surface 21, the second reflection surface 22 a, and the second reflection surface 22 b are surfaces that constitute one groove provided in the linear portion of the light guide 2. Further, the second reflection surface 22a and the second reflection surface 22b are located with the first reflection surface 21 interposed therebetween, and one side thereof overlaps with one side of the first reflection surface 21. By adopting such a structure, the reflection structure including the first reflection surface 21, the second reflection surface 22a, and the second reflection surface 22b can be accommodated in a small area.

  In the example illustrated in FIG. 6, the light capturing unit 20 is provided on the outer side surface of the light guide 2 having a U-shaped linear shape. Then, similarly to the first embodiment, the light emitting element 30 can be installed using the light emitting element 30 as a light source such that the light extraction surface of the light emitting element 30 faces the light intake unit 20. In this case, since the first reflection surface 21 and the second reflection surface 22 (22a, 22b) can directly reflect the light taken in from the light take-in unit 20, the first reflection surface 21 and the second reflection surface 22 can be directly reflected. The loss of light until the light enters the second reflection surface 22 can be reduced.

  The marker part 24 is the whole or a part of the linear part of the light guide 2, and the part exposed when the light guide 2 is installed on the installation target, that is, the user of the installation target recognizes the light emission. It is a part that can be done.

  The side surface 26 inside the linear portion of the light guide 2 preferably has an inclination such that the width of the linear portion of the light guide 1 increases from bottom to top. This makes it possible to increase the proportion of light extracted upward from the light extracted from the sign section 24, so that the sign section 24 is easily visible. In addition, by forming a grain or a lens cut on the bottom surface or side surface of the linear portion of the light guide 2, it is possible to increase the proportion of light extracted upward from the light extracted from the marker 24. Further, in order to further increase the ratio of light extracted upward, a reflective sheet may be attached to the bottom surface or side surface of the linear portion of the light guide 2 and used together with graining or lens cutting.

  Although the linear portion of the light guide 2 shown in FIG. 6 has a U-shape, the shape is not limited to the U-shape, but is preferably a shape depending on the shape of the object on which the light guide 2 is installed. Can be appropriately selected.

(Example of using light guide)
Hereinafter, as an example of use of the light guide 2, a case where the light guide 2 is used in a console box used in an interior of an automobile will be described.

  FIGS. 7A and 7B are perspective views of the console box 6 in which the light guide 2 is installed. The console box 6 has a housing portion 60 which is a concave portion and a lid 62 thereof. FIG. 7A shows a state in which the lid 62 is opened, and FIG. 7B shows a state in which the lid 62 is closed.

  FIG. 8 is a perspective view in which a portion of the light guide 2 which is not covered by the console box 6 and is not visible is shown by a dotted line to show a positional relationship between the console box 6 and the light guide 2. In FIG. 8, the illustration of the lid 62 is omitted.

  As shown in FIGS. 7A and 8, the light guide 2 is installed outside (back side) of the housing portion 60 so that the linear portion thereof is along the edge of the opening 61 of the housing portion 60. You. In this embodiment, a part of the linear portion of the light guide 2 is exposed from the window 64 provided at the edge of the opening 61 of the console box 6, and functions as the marker 24.

  Since the marker 24 is disposed along the edge of the opening 61 of the housing 60, the marker 24 emits light and functions as a marker indicating the position of the opening 61 of the housing 60. Therefore, the user of the console box 6 can easily recognize the position of the storage unit 60 even in an environment where the brightness is insufficient such as at night. In the examples shown in FIGS. 7A, 7B, and 8, the edge of the opening 61 of the housing portion 60 is a rectangle with a curved corner, and two signs are provided along two long sides of the rectangle. The parts 24 are respectively arranged.

  Note that the marker 24 is not necessarily required to be along the edge of the opening 61, but is arranged along the edge of the opening 61 to more accurately indicate the position of the opening 61. Is preferred.

  Further, as shown in FIG. 7B, even when the lid 62 is closed, the light emission can be visually recognized because a part of the marker portion 24 is exposed. That is, even in an environment where the brightness is insufficient such as at night, the position of the console box 6 with the lid 62 closed can be easily recognized.

  On the other hand, the light emitted from the light emitting section 23 below the light guide 2 can illuminate the inside of the housing section 60 through the window 63 provided on the side surface of the housing section 60 of the console box 6. That is, the light emitting unit 23 functions as a light source that illuminates the inside of the housing unit 60 from above. Therefore, the user of the console box 6 can easily see the inside of the housing unit 60 even in an environment where the brightness is insufficient such as at night.

  Note that the light guide 2 can be applied to the storage container having the same concave storage portion as the console box 6 as in the case of the console box 6.

  FIG. 9 is a perspective view of a light guide 2 a which is a modification of the light guide 2. The light guide 2a has an I-shaped linear portion that is not curved. In the example shown in FIG. 9, the light guide 2a has an I-shaped linear shape as a whole. Other features are common to the light guide 2.

  The light guide 2a can be used, for example, for a glove box in an automobile. In this case, the marker 24 of the light guide 2a indicates the position of the opening of the housing of the glove box, and the light emitted from the light emitting unit 23 can illuminate the inside of the housing of the glove box. The light guide 2a is installed, for example, along the upper edge of the opening of the accommodation section of the glove box.

(Effects of Embodiment)
According to the light guide 1 and the light guide 2 of the first and second embodiments, the installation target such as the power supply unit 5 or the console box 6 of an electric vehicle or the like is used by using a small number of light emitting elements 30 as a light source. And the interior can be illuminated.

  Further, according to the first and second embodiments, it is possible to provide a lighting device having the light guide 1 or the light guide 2 and the light emitting element 30.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the invention. In addition, the components of the above embodiment can be arbitrarily combined without departing from the gist of the invention.

  For example, the light guide 2 having a linear portion may be used for the power supply unit 5. In this case, the linear portion of the light guide 2 has a C-shape (a ring shape interrupted at one location) along the edge of the opening 51 of the housing 50. Further, the light guide 1 having a ring-shaped portion in the console box 6 may be used. In this case, the ring-shaped portion of the light guide 2 is installed along the entire periphery of the edge of the opening 61 of the housing 60.

  The above embodiments do not limit the invention according to the claims. Also, it should be noted that not all combinations of the features described in the embodiments are necessarily indispensable for means for solving the problems of the invention.

1, 2, 2a Light guide 5 Power supply unit 6 Console box 10, 20 Light intake unit 11, 21 First reflection surface 12 (12a, 12b), 22 (22a, 22b) Second reflection surface 13, 23 Light emitting units 14, 24 Marking unit 30 Light emitting element 50 Housing 51 Opening 53 Power feeding unit 60 Storage unit 61 Opening 63, 64 Window

Claims (7)

A light guide that emits light by propagating light inside,
A light capturing unit for capturing light emitted from the light source,
A first reflecting surface and a second reflecting surface capable of totally reflecting light captured from the light capturing unit;
A light emitting unit that emits light reflected by the first reflecting surface to the outside for illumination;
A sign portion for propagating the light reflected by the second reflecting surface to the inside and visually confirming its own position by light emission;
A light guide having: A light guide installed on an installation object having a concave portion,
When installed on the installation target, the marker portion indicates the position of the opening of the concave portion, and can illuminate the inside of the concave portion with light emitted from the light emitting portion.
The light guide according to claim 1. The first reflecting surface, the second reflecting surface, the light emitting portion, and a ring-shaped portion including the marker portion,
The second reflective surface includes two reflective surfaces facing different directions,
Light taken in from the light taking-in portion and reflected on one of the two reflecting surfaces travels in one circumferential direction in the ring-shaped portion,
Light taken in from the light taking-in portion and reflected on the other of the two reflecting surfaces travels in the annular shape portion in the other circumferential direction,
The light guide according to claim 1. The first reflecting surface, the second reflecting surface, the light emitting portion, and a linear portion including the marker portion,
The second reflective surface includes two reflective surfaces facing different directions,
The light taken in from the light taking-in portion and reflected on one of the two reflecting surfaces advances toward one end in the linear portion,
Light captured from the light capturing unit and reflected on the other of the two reflecting surfaces travels through the linear portion toward the other end,
The light guide according to claim 1. The two reflecting surfaces are located with the first reflecting surface interposed therebetween,
One side of each of the two reflecting surfaces overlaps with one side of the first reflecting surface;
The light guide according to claim 3. A light guide used for a power supply unit provided with a power supply port in a housing,
The sign portion functions as a sign indicating the position of the opening of the housing,
The light emitting unit functions as a light source that illuminates the power supply port from above,
The light guide according to claim 1. A light guide used for a storage container having a concave storage portion,
The sign section functions as a sign indicating the position of the opening of the storage section,
The light emitting section functions as a light source that illuminates the inside of the housing section from above,
The light guide according to claim 1.

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