JP2010143346A - Indoor lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an indoor lighting device capable of enhancing dramatic effect by indoor lighting. <P>SOLUTION: The device 1 includes: a light source (light emission diode 2); a body 3 mounted to a ceiling part 6 and surrounding the light source; and a slide member 4 provided on the body slide-movably to a side and having a reflection part 19 for reflecting a light beam from the light source. On the body, a lower light transmission part 11 and a side light transmission part 12 are provided. By slide operation of the slide member, it can be switched to the first lighting state P that the lower light transmission part is released and the side light transmission part is closed by the slide member and to the second lighting state Q that the lower light transmission part is closed and the side opening part is released by the slide member. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an indoor lighting device, and more particularly to an indoor lighting device that can enhance the effect of rendering by indoor lighting.

2. Description of the Related Art Conventionally, in an automobile or the like, an indoor lamp is generally installed on the ceiling for the purpose of illumination in the passenger compartment at night. Recently, however, there is an increasing demand for interior lighting that is not only intended for illumination in the passenger compartment but also for improving the atmosphere in the passenger compartment.
Here, what can perform various illumination is known as a conventional room light (for example, refer patent documents 1 and 2).
The above-mentioned Patent Document 1 includes one light source and a rotating shade that shields the light beam of the light source, and shields or unshields the light beam of the light source by a rotating operation of the rotating shade. An interior lamp that can switch between overall illumination (direct illumination) and spot illumination (direct illumination) is disclosed.
Further, Patent Document 2 includes a single light source and a rotatable disc cover that covers the light source, and the disc cover is provided with several types of lens cut portions. An interior light that can switch between overall illumination (direct illumination) and spot illumination (direct illumination) in the vehicle interior by an operation is disclosed.
However, in the above Patent Documents 1 and 2, since a plurality of illumination patterns can be switched only by direct illumination, there is a problem that the effect of producing light for improving the atmosphere in the passenger compartment is insufficient.

Moreover, what is comprised as a conventional room light so that the light beam of a light source may be reflected toward the front of a lamp with a reflector is known (for example, refer patent document 3).
However, since the above-mentioned Patent Document 3 can be illuminated only by direct illumination, there is still a problem that the effect of producing light for improving the atmosphere in the passenger compartment is insufficient.

JP 52-69137 A JP 2002-347513 A JP 2004-182071 A

  This invention is made | formed in view of the said present condition, and aims at providing the indoor lighting apparatus which can improve the production effect by indoor lighting.

The present invention is as follows.
1. A light source;
A body attached to the ceiling and surrounding the light source;
A slide member provided so as to be slidable laterally with respect to the main body, and having a reflecting portion that reflects a light beam from the light source,
The main body is provided with a lower light transmitting portion and a side light transmitting portion,
By the sliding operation of the slide member, the lower light transmissive portion is opened by the slide member and the side light transmissive portion is blocked, and the lower light transmissive portion is blocked by the slide member. And the interior lighting apparatus characterized by being able to switch between the 2nd lighting states by which the said side opening part is open | released.
2. The reflection unit is configured to reflect the light beam from the light source toward the side,
In the first illumination state, a light beam from the light source passes through the lower light transmitting part,
In the second illumination state, the light from the light source reflected toward the side by the reflecting portion passes through the side light transmitting portion. The interior lighting device described.
3. Inside the main body is provided with a side passage portion extending laterally and continuing to the side light transmitting portion.
In the first illumination state, the reflecting portion enters the inside of the side passage portion, and the side passage portion and the side light transmitting portion are blocked,
In the second illumination state, the reflection part escapes from the inside of the side passage part and the side passage part and the side light transmission part are opened. The interior lighting device described.
4). 2. The reflection part is provided on the inner surface of the side passage part. The interior lighting device described.
5). 2. The sliding member is provided with a collar portion that abuts on an outer peripheral side of the side passage portion of the main body. Or 4. The indoor lighting device described in 1.
6). The reflection portion is configured to reflect the light beam from the light source downward.
In the first illumination state, a light beam from the light source reflected downward by the reflecting portion passes through the lower light transmitting portion,
In the second illumination state, the light from the light source passes through the side light transmitting part. The interior lighting device described.
7). A plurality of the side light transmitting portions are provided in the above 1. To 6. The indoor lighting device according to any one of the above.
8). The main body is provided with a translucent film so as to block the lower light transmitting portion. To 7. The indoor lighting device according to any one of the above.
9. The reflection unit of the slide member is provided with at least one curved surface of a concave curved surface and a convex curved surface. To 8. The indoor lighting device according to any one of the above.
10. The light source has directivity. Thru 9. The indoor lighting device according to any one of the above.
11. The number of the light sources is one. To 10. The indoor lighting device according to any one of the above.
12 The interior lighting device is for vehicles. To 11. The indoor lighting device according to any one of the above.

According to the indoor lighting device of the present invention, when the slide member is slid, the lower light-transmitting portion is opened by the slide member and the side light-transmitting portion is closed, and the lower light-transmitting portion is opened by the slide member. It is switched to the second illumination state in which the side light-transmitting part is closed and is closed. In the first illumination state, the light beam from the light source does not leak to the side via the side light-transmitting part in the blocked state, but is reflected directly or by the reflecting part and is transmitted in the lower light state in the open state. Directing the interior of the room is performed through the part and downward. On the other hand, in the second illumination state, the light from the light source does not leak downward through the lower light-transmitting portion in the blocked state, but is reflected by the reflecting portion or directly opened in the side light-transmitting portion. The light passes through and is directed to the side, and the light beam is reflected by the ceiling surface, so that indirect illumination is performed. Thus, since the 1st illumination state which is indoor direct illumination and the 2nd illumination state which is indirect illumination of a ceiling surface can be switched, the presentation effect by indoor illumination can be heightened.
Further, the reflection unit is configured to reflect a light beam from the light source toward a side, and in the first illumination state, the light beam from the light source transmits the lower light transmission unit, and In the second illumination state, when the light beam from the light source reflected toward the side by the reflection unit passes through the side light transmission unit, in the first illumination state, the light beam from the light source is blocked. The indoor side lighting is performed without leaking to the side through the laterally transparent part in the opened state and directly passing through the downwardly transparent part in the open state and moving downward. On the other hand, in the second illumination state, the light beam from the light source does not leak downward through the closed light-transmitting portion, is reflected by the reflecting portion, and passes through the open side light-transmitting portion. Heading to the side, the light is reflected by the ceiling surface, and indirect lighting is performed.
Further, a lateral passage portion extending laterally and continuing to the lateral translucent portion is provided inside the main body, and in the first illumination state, the reflecting portion is disposed inside the lateral passage portion. The side passage portion and the side light transmission portion are blocked, and in the second illumination state, the reflection portion escapes from the inside of the side passage portion and the side passage portion and the When the side light transmitting portion is opened, in the first illumination state, the reflection portion enters the inside of the side passage portion, so that the reflection portion does not reflect the light beam, and irregular reflection can be prevented. In the second illumination state, The light from the light source can be efficiently reflected by the reflecting portion that has escaped from the side passage portion.
Further, in the case where a reflecting portion is provided on the inner surface of the side passage portion, the light from the light source reflected by the reflecting portion of the slide member is further reflected by the reflecting portion in the side passage portion in the second illumination state. It can be reflected and directed to the side translucent part. Therefore, the light from the light source can be efficiently reflected and more appropriate indirect illumination can be performed.
Further, in the case where the slide member is provided with a flange portion that comes into contact with the outer peripheral side of the side passage portion of the main body, in the first illumination state, the flange portion is applied to the outer peripheral side of the side passage portion. By contact, the side passage portion and thus the side light transmitting portion can be blocked to more reliably prevent light leakage.
Further, the reflection unit is configured to reflect the light beam from the light source downward, and in the first illumination state, the light beam from the light source reflected downward by the reflection unit. In the second illumination state, when the light beam from the light source transmits the side light transmission unit in the second illumination state, the light beam from the light source is blocked in the first illumination state. The light is not leaked to the side via the side light-transmitting part in the state, is reflected by the reflecting part, passes through the lower light-transmitting part in the open state, and travels downward to perform direct illumination in the room. On the other hand, in the second illumination state, the light beam from the light source does not leak downward through the closed lower transparent portion, but directly passes through the open side transparent portion to the side. Opposite, the light is reflected by the ceiling surface and indirect illumination is performed.
Moreover, when the said side translucent part is provided with two or more, indirect illumination with arbitrary patterns can be produced in a 2nd illumination state.
Moreover, when the said main body is provided with the semi-transparent film so that the said downward light transmission part may be plugged up, the internal structure of a main body can be hidden with a semi-transparent film, and appearance can be improved.
Further, when at least one of a concave curved surface and a convex curved surface is provided on the reflecting portion of the slide member, the light reflected on the concave surface and / or the convex surface depends on the degree of movement of the slide member. It can have different directions. Thereby, the indirect illumination with a pattern which changes with the moving degree of a slide member can be produced.
In addition, when the light source has directivity, the reflection direction at the reflection portion of the slide member can be accurately controlled. Thereby, more suitable direct illumination and indirect illumination can be performed.
Moreover, when the said light source is one, size reduction of an illuminating device is attained.
Furthermore, when the indoor lighting device is for a vehicle, the vehicle interior ceiling can be effectively illuminated.

1. Interior lighting device Embodiment 1 The interior lighting device according to the present invention includes a light source, a main body, and a slide member described below. In addition, although the use etc. of the said indoor lighting apparatus are not ask | required in particular, it is preferable for vehicles, such as a motor vehicle.

  As long as the “light source” emits light, its configuration, shape, size, number, installation form, etc. are not particularly limited. Examples of the light source include a light emitting diode, a bulb such as an incandescent bulb, a fluorescent lamp, and an electroluminescent light. This light source can have directivity, for example. Moreover, the number of light sources can be one, for example.

As long as the “main body” is attached to the ceiling and surrounds the light source, the configuration, shape, size, material, installation form, etc. are not particularly limited. As this ceiling part, a ceiling material, a vehicle body, etc. can be mentioned, for example.
For example, the light source may be attached to the main body. Thereby, the main body with which the light source was integrated can be attached to a ceiling part, and the attachment property of the illuminating device with respect to a ceiling part can be improved.

As long as the “sliding member” is provided so as to be slidable laterally with respect to the main body and has a reflecting portion that reflects light from the light source, its configuration, shape, size, material, installation form, and movement form Etc. are not particularly limited. This reflection part can be provided with a reflection layer on the surface of the slide member, for example. This reflective layer can be formed, for example, by plating or by film sticking.
For example, at least one curved surface of a concave curved surface and a convex curved surface can be provided on the reflecting portion of the slide member. The shape, size, number, installation form, etc. of the concave curved surface or convex curved surface are not particularly limited.

Embodiment 1 above. In the indoor lighting device, the main body is provided with a lower light transmitting portion and a side light transmitting portion.
As long as the light from the light source directly reflected by the light source or the light from the light source reflected by the reflecting part of the slide member is transmitted and the light is directed downward, the lower light transmitting portion has a configuration, shape, size, and number. The installation form is not particularly limited. For example, a translucent film may be provided on the main body so as to close the lower light-transmitting portion. This translucent film can consist of a half mirror, for example. Moreover, the lower light transmission part can be provided with, for example, a lens cut part that changes the direction of the light beam from the light source. The illumination pattern, shape, size, number, installation form, etc. of this lens cut part are not particularly limited.
As long as the light from the light source reflected by the reflection part of the slide member or the light from the direct light source is transmitted and the light is directed to the side, the side light transmitting portion has a configuration, shape, and size. The number, the installation form, etc. are not particularly limited. For example, a plurality of side light transmitting portions can be provided. In this case, all of the plurality of side light transmitting portions may have the same shape or different shapes, or a plurality of sets of the plurality of side light transmitting portions may have different shapes.

  Embodiment 1 above. In the indoor lighting device, the slide member is operated to slide the lower light-transmitting portion and the side light-transmitting portion is blocked by the slide member, and the slide member closes the lower light-transmitting portion. In addition, the second illumination state in which the side opening is opened can be switched.

Here, the first embodiment. Examples of the indoor lighting device include (1) and (2) modes described below.
(1) The reflection unit is configured to reflect the light beam from the light source toward the side. In the first illumination state, the light beam from the light source passes through the lower light transmission unit, and the second illumination state. Then, the form from which the light ray from the light source reflected toward the side by the reflection part permeate | transmits a side light transmission part (for example, refer FIG.3, 4 etc.).
(2) The reflection unit is configured to reflect the light beam from the light source downward. In the first illumination state, the light beam from the light source reflected downward by the reflection unit is transmitted downward. In the second illumination state, the light beam from the light source is transmitted through the side light transmitting portion (see, for example, FIGS. 7 and 8).

In the above (1) mode, for example, the main body is provided with a side passage portion extending laterally and continuing to the side light transmission portion, and in the first illumination state, the reflection portion is provided inside the side passage portion. The side passage portion and the side light transmitting portion are closed, and in the second illumination state, the reflection portion escapes from the inside of the side passage portion and the side passage portion and the side light transmitting portion are opened. Can be done. For example, a reflection portion can be provided on the inner surface of the side passage portion. This reflection part can be provided with a reflection layer on the inner surface of the side passage part, for example. This reflective layer can be formed, for example, by plating or by film sticking.
In the case of the above-described embodiment, for example, the slide member may be provided with a flange portion that contacts the outer peripheral side of the side passage portion of the main body. There are no particular restrictions on the shape, size, number, installation form, etc. of the collars.

  In the form (1), for example, the light source has a directivity for emitting light rays obliquely downward, and the main body emits light rays from the light source in a state where the slide member is positioned at a slide end separated from the light source. A lower light-transmitting portion is provided at a portion that intersects the directivity direction, and intersects the directivity direction of the light beam of the light source reflected by the reflection portion of the slide member with the slide member positioned at the slide end close to the light source. A lower translucent part may be provided at the site.

  In the above (2) mode, for example, the light source has directivity for emitting light toward the side, and the main body reflects the slide member in a state where the slide member is positioned at the slide end close to the light source. The lower light-transmitting portion is provided at a portion that intersects the light beam directing direction of the light source reflected by the light source, and intersects the light beam directing direction of the light source in a state where the slide member is positioned at the slide end separated from the light source. A side translucent part may be provided at the site.

  Hereinafter, the present invention will be described in detail with reference to the first and second embodiments with reference to the drawings. In the first and second embodiments, as an “interior lighting device” according to the present invention, an indoor lighting device for an automobile is illustrated.

[Example 1]
(1) Configuration of Indoor Lighting Device As shown in FIGS. 1 and 2, the indoor lighting device 1 according to the present embodiment is mounted on the side closer to the windshield F of the ceiling surface C in the interior of the automobile. As shown in FIGS. 3 to 5, the indoor lighting device 1 includes one light emitting diode 2 (illustrated as a “light source” according to the present invention), a main body 3, and a slide member 4.

  The main body 3 surrounds the light emitting diode 2. In addition, a locking portion 7 that locks to an end portion of the ceiling material 6b of the vehicle body 6a and the ceiling material 6b constituting the ceiling portion 6 is provided on the upper portion of the main body 3. The light emitting diode 2 is attached to the attachment portion 8 provided inside the main body 3 so that the light beam is directed obliquely downward behind the vehicle.

  As shown in FIG. 6, the slide member 4 has a plate-like portion 18 and an inclined table-like reflecting portion 19 that is connected to one end side of the plate-like portion 18. An end portion of the plate-like portion 18 opposite to the reflecting portion 19 is an extended portion 25. A slide mechanism 20 (see FIG. 5) is provided between the slide member 4 and the main body 3. The slide mechanism 20 is configured by supporting the left and right edge sides of the plate-like portion 18 with a guide portion 21 having an L-shaped longitudinal section formed on the bottom surface of the main body 3. The slide member 4 is slidable laterally (in the longitudinal direction of the vehicle) with respect to the main body 3. Specifically, the slide member 4 is between a state where the slide member 4 is located at the slide end separated from the light emitting diode 2 (see FIG. 3) and a state where the slide member 4 is located at the slide end close to the light emitting diode 2 (see FIG. 4). The slide moves.

  A reflection layer 19 a (for example, a plating layer) is provided on the inclined surface of the reflection portion 19. The reflective layer 19 a has a reflective surface that is inclined with respect to the direction of orientation of the light emitting diode 2. Further, on the top side of the reflecting portion 19, a collar portion 19 b that abuts on the outer peripheral side of the side passage portion 15 of the main body 3 is provided. A lever 23 extending downward is provided at the center of the other end side of the plate-like portion 18. A cover 24 as an operation unit is attached to the lower end side of the lever 23.

  On the bottom wall of the main body 3, an oblong hole-like shape is formed at a portion that intersects the direction of the light beam of the light emitting diode 2 in a state where the slide member 4 is positioned at the slide end separated from the light emitting diode 2 (see FIG. 3). A lower light transmitting portion 11 is provided. A semi-transparent film 13 made of a half mirror is provided on the outer surface of the bottom wall of the main body 3 so as to close the lower light transmitting portion 11. Further, on one side wall of the main body 3 (a side wall on the rear side of the vehicle), the slide member 4 is reflected by the reflecting portion 19 of the slide member 4 in a state where the slide member 4 is positioned at the slide end close to the light emitting diode 2 (see FIG. 4). A plurality of circular hole-shaped side light-transmitting portions 12 are provided at portions intersecting the direction of light rays of the light-emitting diode 2 formed. In addition, a side passage portion 15 extending from the space S in which the light emitting diode 2 is housed to the side (the vehicle front-rear direction) and continuing to the plurality of side light transmitting portions 12 is provided inside the main body 3. Yes. The direction of the side passage portion 15 coincides with the directing direction of the light beam of the light emitting diode 2 reflected by the reflecting portion 19 of the slide member 4. In addition, a reflective layer 15 a (for example, a plating layer) is provided on the inner surface of the side passage portion 15.

  Here, in the indoor lighting device 1 of the present embodiment, the sliding member 4 slide operation causes the sliding member 4 to open the lower light transmitting portion 11 and the side light transmitting portion 12 to be closed. 3) and the second illumination state Q (see FIG. 4) in which the lower light transmitting portion 11 is blocked by the slide member 4 and the side light transmitting portion 12 is opened can be switched. ing. In the first lighting state P, the reflecting portion 19 enters the inside of the side passage portion 15 so that the side passage portion 15 and the side light transmitting portion 12 are blocked, and the slide member 4 and the lower light transmitting portion 11 are closed. The lower translucent part 11 is opened without overlapping. On the other hand, in the second illumination state Q, the reflecting portion 19 escapes from the inside of the side passage portion 15 and the side passage portion 15 and the side light transmitting portion 12 are opened, and the slide member 4 and the lower light transmitting portion are opened. 11 overlaps with the lower light-transmitting portion 11.

(2) Operation of the interior illumination device Next, the operation of the interior illumination device 1 having the above configuration will be described.
When the cover 24 is gripped and the slide member 4 is slid to be in the first illumination state P, as shown in FIG. 3, the reflection portion 19 enters the side passage portion 15 and the side passage portion 15 and the side The light-transmitting portion 12 is blocked and the reflecting portion 19 of the slide member 4 overlaps with a part of the lower light-transmitting portion 11. The translucent part 11 is opened. Then, the light beam from the light emitting diode 2 does not leak to the side via the side passage portion 15 and the side light transmitting portion 12 in the closed state, and directly opens the lower light transmitting portion 11 and the half light in the open state. The light passes through the transparent film 13 and goes obliquely downward, and direct indoor lighting is performed.

  On the other hand, when the cover 24 is grasped and the slide member 4 is slid to be in the second illumination state Q, the reflection portion 19 escapes from the inside of the side passage portion 15 as shown in FIG. In addition, the side light-transmitting portion 12 is opened, and the reflecting portion 19 and the plate-like portion 18 (including the extending portion 25) of the slide member 4 overlap the lower light-transmitting portion 11 and the lower light-transmitting portion 11 is blocked. It is. Then, the light beam from the light emitting diode 2 does not leak downward through the closed light-transmitting portion 11 but is reflected by the reflecting portion 19 and opened in the open side passage portion 15 and the side light-transmitting portion. 12, the light beam is reflected to the side and reflected from the ceiling surface C, and indirect illumination is performed. In this indirect illumination, a crown-shaped illumination pattern is produced on the ceiling surface C by the light rays from the plurality of lateral translucent portions 12.

(3) Effects of the embodiment According to the indoor lighting device 1 of the present invention, the reflection unit 19 is configured to reflect the light beam from the light emitting diode 2 toward the side, and the slide is performed by the slide operation of the slide member 4. A first lighting state P in which the lower light-transmitting portion 11 is opened by the member 4 and the side light-transmitting portion 12 is blocked, and the lower light-transmitting portion 11 is blocked by the slide member 4 and the side opening 12 is opened. Therefore, in the first illumination state P, the light beam from the light emitting diode 2 does not leak to the side via the side light transmitting part 12 in the blocked state. Directly passing through the lower light-transmitting portion 11 in the open state and moving downward, direct indoor lighting is performed. On the other hand, in the second illumination state Q, the light beam from the light emitting diode 2 does not leak downward through the lower light-transmitting portion 11 in the blocked state, but is reflected by the reflecting portion 19 and is opened in the side light transmission in the open state. The light passes through the portion 12 and travels to the side, and the light is reflected by the ceiling surface C, so that indirect illumination is performed. Thus, since the 1st illumination state P which is indoor direct illumination, and the 2nd illumination state Q which is indirect illumination, such as a ceiling surface, can be switched, the presentation effect by indoor illumination can be heightened.

  Further, in the present embodiment, the main body 3 is provided with a side passage portion 15 extending laterally and continuing to the side light transmission portion 12, and in the first illumination state P, the reflection portion 19 is provided inside the side passage portion 15. And the side passage portion 15 and the side light transmission portion 12 are blocked, and in the second illumination state Q, the reflection portion 19 escapes from the inside of the side passage portion 15 and the side passage portion 15 and the side. Since the light-transmitting part 12 is opened, in the first illumination state P, the reflecting part 19 enters the inside of the side passage part 15, so that the reflecting part 19 does not reflect light rays and can prevent irregular reflection. In the second illumination state Q, the light from the light-emitting diode 2 can be efficiently reflected by the reflecting portion 19 that has escaped from the side passage portion 15.

  Further, in this embodiment, since the reflection layer 15a is provided on the inner surface of the side passage portion 15, in the second illumination state Q, the light beam from the light emitting diode 2 reflected by the reflection portion 19 of the slide member 4 is side. The light can be further reflected by the reflecting portion 15 a in the side passage portion 15 and directed toward the side light transmitting portion 12. Therefore, the light from the light emitting diode 2 can be efficiently reflected and more appropriate indirect illumination can be performed.

  Further, in the present embodiment, the slide member 4 is provided with the collar portion 19b that comes into contact with the outer peripheral side of the side passage portion 15 of the main body 3, so that in the first illumination state P, on the outer peripheral side of the side passage portion 15. When the collar portion 19b comes into contact, the side passage portion 15 and thus the side light transmitting portion 12 can be blocked to more reliably prevent light leakage.

  Further, in the present embodiment, the slide member 4 is configured to have the plate-like portion 18 (including the extending portion 25) and the inclined portion 19, so that in the second illumination state P, the slide member 4 is downwardly transparent. The light part 11 is completely blocked, so that leakage of light from the lower light transmitting part 11 can be prevented more reliably and the internal structure of the lighting device 1 can be hidden.

  In the present embodiment, since the plurality of side light transmitting portions 12 are provided, indirect illumination with an arbitrary pattern can be produced in the second illumination state Q.

  In the present embodiment, since the translucent film 13 is provided on the main body 3 so as to close the lower light transmitting portion 11, the internal structure of the main body 3 can be hidden by the translucent film 13, thereby improving the appearance. it can.

  Further, in this embodiment, since the light emitting diode 2 having directivity is used as the light source, the reflection direction at the reflection portion 19 of the slide member 4 can be accurately controlled. Therefore, more appropriate direct illumination and indirect illumination can be performed.

  In this embodiment, since the number of the light emitting diodes 2 is one, the lighting device 1 can be downsized.

  In the present embodiment, since the light emitting diode 2 is attached to the main body 3, the main body 3 in which the light emitting diode 2 is integrated can be attached to the ceiling portion 6. Can be increased.

  Furthermore, in the present embodiment, since the interior lighting device 1 is for a vehicle, the interior ceiling of the vehicle can be effectively illuminated.

[Example 2]
(1) Configuration of Indoor Lighting Device Next, an indoor lighting device according to a second embodiment will be described. In the second embodiment, the same components as those in the indoor lighting device of the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted, and the differences will be described in detail below.

  As shown in FIGS. 7 and 8, the indoor lighting device 31 according to the present embodiment includes one light emitting diode 32 (illustrated as a “light source” according to the present invention), a main body 33, and a slide member 34. .

  The main body 33 surrounds the light emitting diode 32. A light emitting diode 32 is attached to an attachment portion 35 provided inside the main body 33 so that the light beam is directed to the side of the vehicle.

  The slide member 34 includes a plate-like portion 41 and a plate-like reflecting portion 42 extending obliquely upward from one end side of the plate-like portion 41. The plate-like portion 41 is formed with a hole 43 for opening the lower light transmitting portion 36. Further, a slide mechanism 20 similar to that of the first embodiment is provided between the slide member 34 and the main body 33. The slide member 34 is slidable laterally (in the longitudinal direction of the vehicle) with respect to the main body 33. Specifically, the slide member 34 is between a state where the slide member 34 is positioned at the slide end close to the light emitting diode 32 (see FIG. 7) and a state where the slide member 34 is positioned at the slide end separated from the light emitting diode 2 (see FIG. 8). The slide moves.

  A reflective layer 42 a (for example, a plating layer) is provided on the lower surface of the reflective portion 42. The reflective layer 42 a has a reflective surface that is inclined with respect to the direction of orientation of the light emitting diode 32. A lever 23 extending downward is provided at the center of the other end side of the plate-like portion 18. A cover 24 as an operation unit is attached to the lower end side of the lever 23.

  On the bottom wall of the main body 33, the light beam from the light emitting diode 32 reflected by the reflecting portion 42 of the slide member 34 in a state where the slide member 34 is positioned at the slide end close to the light emitting diode 32 (see FIG. 7). An oblong hole-shaped lower translucent portion 36 is provided at a portion that intersects the direction. In addition, on one side wall of the main body 33 (a side wall on the rear side of the vehicle), the slide member 34 intersects with the light beam directing direction of the light emitting diode 32 in a state where the slide member 34 is positioned at the slide end separated from the light emitting diode 32 (see FIG. 4). A plurality of circular hole-shaped side translucent portions 37 are provided at the site to be operated. Further, a side passage portion 38 is provided in the main body 33 so as to extend from the space S in which the light emitting diode 32 is accommodated toward the side (front-rear direction of the vehicle) and continue to the plurality of side light transmitting portions 37. Yes. The direction of the side passage portion 38 coincides with the direction of the light beam from the light emitting diode 32. In addition, a reflective layer 38 a (for example, a plating layer) is provided on the inner surface of the side passage portion 38.

  Here, in the indoor lighting device 31 of the present embodiment, the sliding member 34 slide operation opens the lower light-transmitting portion 36 and closes the side light-transmitting portion 37 by the slide member 34. 7) and the second illumination state Q (see FIG. 8) in which the lower light transmitting portion 36 is blocked by the slide member 34 and the side opening 37 is opened can be switched. Yes. In the first illumination state P, the side passage portion 38 and the side light transmissive portion 37 are blocked by the reflecting portion 42, and the hole portion 43 of the slide member 34 and the lower light transmissive portion 36 overlap each other to transmit the lower light transmissive. Part 36 is opened. On the other hand, in the second illumination state Q, the side passage portion 38 and the side light-transmitting portion 37 are opened by the reflecting portion 42, and the plate-like portion 41 and the lower light-transmitting portion 36 of the slide member 34 overlap each other to transmit the lower light. The light part 36 is blocked.

(2) Operation of the interior illumination device Next, the operation of the interior illumination device 31 having the above configuration will be described.
When the cover 24 is grasped and the slide member 34 is slid to be in the first illumination state P, the lower light-transmitting portion 36 is opened and reflected by the hole 43 of the slide member 34 as shown in FIG. The side passage portion 38 and the side light transmitting portion 37 are blocked by the portion 42. Then, the light beam from the light emitting diode 32 does not leak to the side via the side light transmitting part 37 in the closed state, but is reflected by the reflecting part 42 and opened in the lower light transmitting part 36 and the translucent film. 13 is passed through diagonally downward and the room is directly illuminated.

  On the other hand, when the cover 24 is picked and the slide member 34 is slid to the second illumination state Q, the lower light transmitting portion 36 is blocked by the plate-like portion 41 of the slide member 34, as shown in FIG. The side passage portion 38 and the side light transmissive portion 37 are opened by the reflecting portion 42. Then, the light beam from the light emitting diode 32 does not leak downward through the closed lower light transmitting portion 36 and directly passes through the side passage portion 38 and the side light transmitting portion 37 in the open state. The light beam is reflected by the ceiling surface C and indirect illumination is performed. In this indirect illumination, a crown-shaped illumination pattern is produced on the ceiling surface C by the light rays from the plurality of lateral translucent portions 37.

(3) Effects of the Example According to the indoor lighting device 31 of the present invention, the same effects and advantages as the indoor lighting device 1 of the above-mentioned Example 1 are exhibited, and the light from the light emitting diode 32 is directed downward with the reflector 42. A first lighting state P in which the lower light-transmitting portion 36 is opened by the slide member 34 and the side light-transmitting portion 37 is blocked by the slide operation of the slide member 34, and the slide member 34. Therefore, in the first illumination state P, the light rays from the light emitting diodes 32 are blocked because the lower light-transmitting portion 36 is blocked and the side illumination portion 37 is opened. The light is not leaked to the side via the side light transmitting portion 37 in the opened state, is reflected by the reflecting portion 42, passes through the lower light transmitting portion 36 in the open state, and travels downward to perform direct illumination in the room. On the other hand, in the second illumination state Q, the light beam from the light emitting diode 32 does not leak downward through the closed light-transmitting portion 36 and directly passes through the side light-transmitting portion 37 in the open state. Then, the light beam is reflected from the ceiling surface C, and indirect illumination is performed. Thus, since the 1st illumination state P which is indoor direct illumination, and the 2nd illumination state Q which is indirect illumination, such as a ceiling surface, can be switched, the presentation effect by indoor illumination can be heightened.

  In the present invention, the present invention is not limited to the first and second embodiments, and various modifications can be made within the scope of the present invention depending on the purpose and application. That is, in the first and second embodiments, two types of illumination states having different first and second illumination states P and Q are switched. However, the present invention is not limited to this, and for example, three or more different illumination states are selected. You may make it switch.

  Moreover, in the said Example 1 and 2, although the circular hole-shaped side light transmission parts 12 and 37 were illustrated, it is not limited to this, For example, predetermined | prescribed pattern shape (For example, unusual shape, star shape, heart shape) Etc.) may be formed as a side light transmitting portion.

  Moreover, in the said Example 1 and 2, although the form which made all the some side light transmission parts 12 and 37 the same shape was illustrated, it is not limited to this, For example, all the some side light transmission parts May have different shapes. Moreover, it is good also as a shape which divides a some side translucent part into a plurality of groups, and differs in those groups.

  In the first and second embodiments, the translucent film 13 covering the lower light transmitting portions 11 and 36 is provided on the main bodies 3 and 33. However, the present invention is not limited to this. You may make it provide the lens which covers the optical parts 11 and 36. FIG. In this case, it is preferable to provide the lens with a lens cut portion that changes the direction of light rays from the light emitting diodes 2 and 32. This is because in the first lighting state P, it is possible to provide direct lighting in the room having an appropriate direction.

  Further, in the first and second embodiments, the surface sides of the reflection portions 19 and 42 of the slide members 4 and 34 are formed to be flat, but the present invention is not limited to this. For example, as shown in FIG. The concave curved surface 50 may be provided on the reflecting portion 19 (42) of (34). In addition, for example, the reflecting portions 19 and 42 of the slide members 4 and 34 may be provided with a convex curved surface, or a concave curved surface and a convex curved surface may be provided in combination. As a result, the light rays reflected on the concave curved surface and / or the convex curved surface can have different directions depending on the degree of movement of the slide members 4 and 34. Therefore, it is possible to produce indirect illumination with different patterns depending on the degree of movement of the slide members 4 and 34.

  Moreover, in the said Example 1 and 2, although the planar rectangular form was illustrated as the room illuminating devices 1 and 31, it is not limited to this, For example, it is good also as room illuminating devices, such as a plane circle, an ellipse, and an irregular shape.

  Furthermore, in the said Example 1 and 2, although the room illuminating devices 1 and 31 arrange | positioned near the windshield F of the ceiling surface C of a vehicle were illustrated, it is not limited to this, For example, the ceiling surface C of a vehicle It is good also as an indoor lighting apparatus arrange | positioned in a substantially center part.

  Widely used as a technology to enhance the production effect and illuminate the room. In particular, it is suitably used as a technique for illuminating the interior of a vehicle.

It is a perspective view which shows the state which attached the indoor lighting apparatus which concerns on Example 1 to the ceiling surface of the vehicle. It is a principal part expansion perspective view of FIG. It is AA sectional view taken on the line of FIG. 2, and shows the 1st lighting state of the said interior lighting apparatus. It is AA sectional view taken on the line of FIG. 2, and shows the 2nd lighting state of the said interior lighting apparatus. It is the BB sectional view taken on the line of FIG. 1 is a perspective view of a slide member according to Embodiment 1. FIG. It is a longitudinal cross-sectional view which shows the 1st lighting state of the room illuminating device which concerns on Example 2. FIG. It is a longitudinal cross-sectional view which shows the 2nd lighting state of the said indoor lighting apparatus. It is a perspective view of the slide member of other forms.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,31; Interior lighting apparatus, 2,32; Light emitting diode, 3,33; Main body, 4,34; Sliding member, 6; Ceiling part, 19,42; Reflection part, 11,36; Lower light transmission part, 12 , 37; side translucent part, 13; translucent film, 15, 38; side passage part, C; ceiling surface, P; first illumination state, Q: second illumination state.

Claims (12)

A light source;
A body attached to the ceiling and surrounding the light source;
A slide member provided so as to be slidable laterally with respect to the main body, and having a reflecting portion that reflects a light beam from the light source,
The main body is provided with a lower light transmitting portion and a side light transmitting portion,
By the sliding operation of the slide member, the lower light transmissive portion is opened by the slide member and the side light transmissive portion is blocked, and the lower light transmissive portion is blocked by the slide member. And the interior lighting apparatus characterized by being able to switch between the 2nd lighting states by which the said side opening part is open | released. The reflection unit is configured to reflect the light beam from the light source toward the side,
In the first illumination state, a light beam from the light source passes through the lower light transmitting part,
The indoor lighting device according to claim 1, wherein in the second illumination state, a light beam from the light source reflected toward the side by the reflecting portion passes through the side light transmitting portion. Inside the main body is provided with a side passage portion extending laterally and continuing to the side light transmitting portion.
In the first illumination state, the reflecting portion enters the inside of the side passage portion, and the side passage portion and the side light transmitting portion are blocked,
3. The indoor lighting device according to claim 2, wherein, in the second lighting state, the reflecting portion escapes from the inside of the side passage portion and the side passage portion and the side light transmitting portion are opened.   The interior lighting device according to claim 3, wherein a reflection portion is provided on an inner surface of the side passage portion.   The indoor lighting device according to claim 3 or 4, wherein the slide member is provided with a flange portion that contacts an outer peripheral side of the side passage portion of the main body. The reflection portion is configured to reflect the light beam from the light source downward.
In the first illumination state, a light beam from the light source reflected downward by the reflecting portion passes through the lower light transmitting portion,
The indoor lighting device according to claim 1, wherein in the second illumination state, a light beam from the light source passes through the side light transmitting portion.   The indoor lighting device according to any one of claims 1 to 6, wherein a plurality of the side light transmitting portions are provided.   The interior lighting device according to any one of claims 1 to 7, wherein the main body is provided with a translucent film so as to close the lower light-transmitting portion.   The room lighting device according to any one of claims 1 to 8, wherein at least one of a concave curved surface and a convex curved surface is provided in the reflecting portion of the slide member.   The indoor lighting device according to any one of claims 1 to 9, wherein the light source has directivity.   The indoor lighting device according to any one of claims 1 to 10, wherein the number of the light sources is one.   The indoor lighting device according to any one of claims 1 to 11, wherein the indoor lighting device is for a vehicle.

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