JP2008027856A - Vehicular lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem, wherein with a former vehicular lighting fixture in which the increase in the number of components causes increase in the manufacturing cost. <P>SOLUTION: A lamp chamber 10 is formed by a lamp housing 2 and a lamp lens 3 and partitioned into areas 11 and 12 by an inner lens 4. A bulb 5 is arranged inside a first area 11. The lamp chamber 10 in the second area 12 is further partitioned into nine small lamp chambers 15 by an inner housing 6. A reflection surface 16 for making the light L3 passing through the inner lens 4 reflect, from the bulb 5 to the side of the lamp lens 3, is provided inside each of nine small lamp chambers 15. Thus, since the vehicular lighting fixture appears as though it has ten light sources, with a single bulb, the number of components is reduced and reduces the manufacturing cost. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicular lamp such as a tail stop lamp, a turn signal lamp, or a backup lamp. In particular, the present invention relates to a vehicular lamp that appears as if a large number of light sources are used with one or a small number of light sources. The present invention also relates to a vehicular lamp that shows a plurality of areas in the lamp chamber as if they have independent functions when not lit, and shows a function in which the plurality of areas in the lamp chamber are integrated when lit. Is.

  This type of vehicular lamp is conventionally (see, for example, Patent Document 1). Hereinafter, a conventional vehicle lamp will be described. A conventional vehicular lamp includes a lamp body and an outer lens that form a lamp chamber, a partition member that divides the lamp chamber into a plurality of areas, and a tail lamp bulb that is disposed in one of the plurality of areas. And a plurality of small reflectors arranged in other areas of the plurality of areas and a plurality of LEDs as light sources.

  Hereinafter, the operation of the conventional vehicle lamp will be described. When the tail lamp bulb is turned on, light (red light) from the tail lamp bulb passes through the outer lens and is irradiated to the outside. On the other hand, when a plurality of LEDs are turned on, light from the plurality of LEDs is reflected by the plurality of small reflectors, passes through the outer lens, and is irradiated to the outside. Since the tail lamp bulb and the plurality of LEDs are lit in the conventional vehicle lamp, a novel design and appearance can be obtained.

  However, since the conventional vehicular lamp requires a plurality of LEDs and a plurality of small reflectors with respect to the tail lamp bulb, the number of parts increases correspondingly and the manufacturing cost increases.

JP 2006-12508 A

  The problem to be solved by the present invention is that in the conventional vehicular lamp, the number of parts increases and the manufacturing cost increases.

According to the present invention (the invention according to claim 1), a lamp chamber is formed by a lamp housing and a lamp lens, the lamp chamber is partitioned into a plurality of areas by a partition member, and a light source is provided in one of the plurality of areas. A space inside the other area is further divided into a plurality of lamp chambers by an inner housing, and a reflecting surface for reflecting the light transmitted through the partition member from the light source to the lamp lens side is reflected in the plurality of lamp chambers. It is characterized by providing.
To do.

  Moreover, this invention (the invention according to claim 2) is characterized in that the partition member is a colored inner lens covering the light source.

  In the vehicular lamp according to the present invention (the invention according to claim 1), when the light source in one area is turned on by the means for solving the above-described problem, a part of the light from the light source is within the one area. Since the light passes through the lamp lens and is irradiated to the outside, the lamp chamber in this one area appears to shine. On the other hand, another part of the light from the light source is transmitted through the partition member, reflected by the reflecting surfaces in the plurality of lamp chambers in other areas to the lamp lens side, and transmitted through the lamp lens to be irradiated to the outside. Therefore, a plurality of lamp chambers in other areas appear to shine. As a result, the vehicular lamp of the present invention (the invention according to claim 1) appears as if a large number of light sources are used with one or a small number of light sources. As a result, the vehicular lamp of the present invention (the invention according to claim 1) can be seen with a plurality of light sources turned on, so that a novel design and appearance can be obtained, while a single or a small number of light sources can be used. Therefore, the number of parts can be reduced correspondingly, and the manufacturing cost can be reduced.

  In addition, since the vehicular lamp of the present invention (the invention according to claim 1) further divides the space in the other area into a plurality of lamp chambers by the inner housing, the plurality of lamp chambers in the other area. Is divided into small sections, and the wall looks like a small lamp room in which semiconductor light sources such as LEDs are arranged. In other words, since a bulb-type light source that generates heat when lit can not be arranged in a lamp room in a small space, a semiconductor-type light source such as an LED that does not generate heat when lit is arranged in a lamp room in a small space. Prejudice by prejudice and what is. In addition, by turning on the light source in one area, the light from this light source passes through the partition member and is reflected by the reflecting surface in the plurality of lamp chambers in the other area to the lamp lens side, and is small. Since each of the plurality of lamp chambers in the space emits light, it seems that semiconductor-type light sources such as LEDs are respectively disposed in the plurality of lamp chambers in the small space. As a result, the vehicular lamp of the present invention (the invention according to claim 1) is like a lamp chamber in which a plurality of small space lamp chambers in other areas are arranged with semiconductor light sources such as LEDs. Visible and innovative design and appearance can be obtained, and the design and appearance can be improved.

  Further, the vehicular lamp according to the present invention (the invention according to claim 2) uses a colored inner lens that covers the light source as a partition member, so that the color of the inner lens can be seen in one area when not lit, and In other areas, the colors of the reflecting surfaces of multiple lamp chambers can be seen, so that one area and the other area look like lamps with independent functions. A part of the light passes through the inner lens and is irradiated to the outside so that the color of the inner lens can be seen, and another part of the light from the light source passes through the inner lens and passes through a plurality of other areas. Since the color of the inner lens can be seen by being reflected by the reflecting surface in the lamp chamber to the lamp lens side, it looks like a lamp with a function in which one area and other areas are integrated. As described above, the vehicular lamp according to the present invention (the invention according to claim 2) is provided with respect to the user and other persons, and how the one area and the other area can be seen when not lit and how they can be seen when lit. It is possible to produce an unprecedented appearance and further improve the appearance.

  Embodiments of a vehicle lamp according to the present invention will be described below in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments.

  Hereinafter, the configuration of the vehicular lamp according to this embodiment will be described. In the figure, reference numeral 1 denotes a vehicular lamp according to this embodiment. The vehicle lamp 1 is, for example, a tail stop lamp. The vehicular lamp 1 is mounted on the left and right of the rear part of the automobile (vehicle). Hereinafter, the vehicle lamp 1 mounted on the right side of the rear part of the automobile will be described. Note that the configuration of the vehicular lamp mounted on the left side of the rear part of the automobile is almost symmetrical.

  As shown in the drawing, the vehicular lamp 1 includes a lamp housing 2, a lamp lens (for example, a transparent outer lens and an outer cover) 3, an inner lens 4 as a partition member, and one light source as a light source. A valve 5 and an inner housing 6 are provided. The vehicular lamp 1 has a shape that wraps around from the front surface (the rear side of the vehicle) to the side surface (the right side of the vehicle and the outside of the vehicle).

  In this example, the lamp housing 2 is made of a light-impermeable synthetic resin. The lamp housing 2 is opened from the front surface to the side surface, and is closed from the rear portion (the front side of the automobile) to the side portion (the left side of the automobile and the inside of the automobile). On the side of the closed portion of the lamp housing 2, aluminum deposition or silver coating is applied, and a first reflecting surface 7 is provided. The first reflecting surface 7 reflects light L1 from the bulb 5 (broken arrow in FIG. 3). In this example, the first reflecting surface 7 forms a paraboloid of revolution. A mounting hole 8 for mounting the bulb 5 is provided in the approximate center of the first reflecting surface 7.

  The bulb 5 is a bulb type power source such as a halogen bulb or an incandescent bulb, and generates heat when it is lit. The bulb 5 is detachably attached to the attachment hole 8 of the lamp housing 2 by a socket 9.

  In this example, the lamp lens 3 is made of a light-transmitting synthetic resin. The lamp lens 3 has a shape that wraps around from the front to the side. The peripheral edge of the lamp lens 3 is fixed to the peripheral edge of the opening of the lamp housing 2. As a result, a lamp chamber 10 is formed by the lamp housing 2 and the lamp lens 3.

  In this example, the inner lens 4 is made of a light-transmitting synthetic resin. The inner lens 4 is red. The inner lens 4 has a cap shape in which one surface is open and the other surface and side surfaces are closed. The peripheral edge of the opening of the inner lens 4 is fixed to the peripheral edge of the first reflecting surface 7 of the lamp housing 2. As a result, the lamp chamber 10 is divided into a plurality of, in this example, two areas 11 and 12. That is, it is partitioned into a first area 11 in one area having the bulb 5 and the first reflecting surface 7 and a second area 12 in another area.

  As shown in FIGS. 4 and 5, prisms 13 and 14 are provided on both the inner and outer surfaces of the side wall of the inner lens 4 that partitions the first area 11 and the second area 12. That is, the side wall of the inner lens 4 is inclined with the upper side on the right side and the lower side on the left side. The prisms 13 and 14 convert the light L2 from the bulb 5 (solid arrow in the figure) into substantially parallel light L3 (solid arrow in the figure) with respect to the inclination of the side wall of the inner lens 4. is there.

  In this example, the inner housing 6 is made of a light-impermeable synthetic resin. The inner housing 6 is disposed inside the lamp housing 2, that is, in the lamp chamber 10. The inner housing 6 divides a plurality of spaces in the second area 12 into nine small lamp chambers 15 in this example, that is, divided vertically into three and divided into three right and left. The nine small lamp chambers 15 are each defined by a vertical side wall, a horizontal ceiling, and a floor of the inner housing 6.

  In the nine small lamp chambers 15, second reflecting surfaces 16 are respectively provided. That is, an oblique wall is integrally provided on the side wall of the inner lens 6. On the surface of the oblique wall, aluminum deposition or silver coating is applied, and the second reflecting surface 16 is provided. The second reflecting surface 16 reflects the light L3 transmitted from the bulb 5 through the inner lens 4 to the lamp lens 3 side.

  The second reflecting surface 16 forms a reflecting surface of a Fresnel type paraboloid having the same focal point and different focal lengths. Further, as shown in FIG. 6, the second reflecting surface 16 has one rotating paraboloid surface for diffusively reflecting the light L3 transmitted from the bulb 5 through the inner lens 4 toward the lamp lens 3 side. Is a plurality of small convex spherical surfaces 17. As shown in FIG. 7, the second reflecting surface 16 may be a single paraboloid 18 instead of a plurality of small convex spherical surfaces. On the other hand, the side wall of the inner housing 6 is provided with an opening 19 through which the light L3 transmitted from the bulb 5 through the inner lens 4 passes through the second reflecting surface 16.

  The vehicular lamp 1 according to this embodiment is configured as described above, and the operation thereof will be described below.

  First, when the bulb 5 is not lit, the inner lens 4 can be seen through the lamp lens 3 in the first area 11, so the first area 11 looks red, while the nine small lamps in the second area 12. Since the second reflecting surface 16 of the chamber 15 is visible through the lamp lens 3, the second area 12 appears silver (metallic luster). As a result, when the bulb 5 is not lit, the red first area 11 and the silver second area 12 look like independent lamps.

  Next, when the bulb 5 is turned on, a part of the light L1 from the bulb 5 is reflected by the first reflecting surface 7 in the first area 11 and passes through the inner lens 4 to become red light. Since the red light passes through the lamp lens 3 and is irradiated to the outside, the lamp chamber 10 in the first area 11 appears to shine red.

  On the other hand, another part L2 of the light from the bulb 5 passes through the inner lens 4 and becomes red parallel light. The red parallel light enters the nine small lamp chambers 15 in the second area 12 through the openings 19. Since the red light respectively incident on the nine small lamp chambers 15 is reflected by the reflecting surface 16 and is transmitted through the lamp lens 3 to the outside, the nine small lamp chambers in the second area 12 are irradiated. Each 15 appears to glow red. As a result, it looks like a lamp having a function in which the red first area 11 and the red second area 12 are integrated.

  The vehicular lamp 1 according to this embodiment is configured and operated as described above, and the effects thereof will be described below.

  In the vehicular lamp 1 according to this embodiment, when the bulb 5 in the first area 11 is turned on, a part L1 of the light from the bulb 5 is transmitted through the lamp lens 3 from the inside of the first area 11 and radiates to the outside. Therefore, the lamp chamber 10 in the first area 11 appears to shine. On the other hand, another part L2 of the light from the bulb 5 passes through the inner lens 4 and is reflected by the reflecting surface 16 in the nine small lamp chambers 15 in the second area 12 to the lamp lens 3 side. Since the light is transmitted to the outside through the lens 3, the nine small lamp chambers 15 in the second area 12 appear to shine. As a result, the vehicular lamp according to this embodiment looks as if a single bulb 5 is using a large number (10) of light sources. As a result, the vehicular lamp 1 according to this embodiment can be seen with a plurality of light sources turned on, so that a novel design and appearance can be obtained. The number of points can be reduced, and the manufacturing cost can be reduced.

  Moreover, the vehicular lamp 1 according to this embodiment divides the space 10 in the second area 12 into nine smaller lamp chambers 15 by the inner housing 6, so that the nine lamps in the second area 12 The small lamp chamber 15 is divided into small sections, and the wall looks like a small lamp chamber in which semiconductor light sources such as LEDs are arranged. That is, since a bulb-type light source that generates heat when lit can not be arranged in a lamp room in a small space, a semiconductor-type light source such as an LED that does not generate heat when lit is arranged in a lamp room in a small space. Prejudice by prejudice and what is. In addition, by turning on the bulb 5 in the first area 11, the light L <b> 2 from the bulb 5 passes through the inner lens 4 and the reflecting surfaces 16 in the nine small lamp chambers 15 in the second area 12. Thus, the nine lamp chambers in the small space are respectively reflected on the lamp lens 3 side, so that it seems that semiconductor type light sources such as LEDs are respectively arranged in the nine lamp chambers 15 in the small space. . As a result, in the vehicular lamp 1 according to this embodiment, nine small space lamp chambers 15 in the second area 12 look like a lamp chamber in which semiconductor light sources such as LEDs are arranged. Design and appearance can be obtained, and the design and appearance can be improved.

  Moreover, the vehicular lamp 1 according to this embodiment uses the red inner lens 4 that covers the bulb 5 as a partition member, so that the red of the inner lens 4 can be seen in the first area 11 when not lit, and Since the silver of the reflecting surface 16 of the nine lamp chambers 15 can be seen in the second area 12, the first area 11 and the second area 12 look like independent lamps. On the other hand, at the time of lighting, a part L1 of the light from the bulb 5 in the first area 11 passes through the inner lens 4 and is emitted to the outside as red light. The other part L2 of the blue light is transmitted through the inner lens 4 and reflected as red parallel light L3 to the lamp lens 3 side by the reflecting surfaces 16 in the nine lamp chambers 15 in the second area 12 to be irradiated to the outside. As a result, the red color of the inner lens 4 is visible. Thereby, it looks like a lamp having a function in which the first area 11 and the second area 12 are integrated. As described above, the vehicular lamp 1 according to this embodiment provides a user or other person with a space between the first area 11 and the second area 12 when they are not lit and when they are lit. It is possible to produce an appearance that does not have a gap until now, and to further improve the appearance.

  Hereinafter, examples other than the above embodiment will be described. In the above embodiment, the tail stop lamp will be described. However, the present invention can also be applied to other vehicle lamps such as a turn signal lamp and a backup lamp. In the case of a turn signal lamp, the inner lens has an amber color. When the lamp is not lit, the amber first area and the silver second area are visible, and when the lamp is lit, the amber first area and the second area are visible. In the case of a backup lamp, the inner lens is blue (or pink), and the lamp lens is pink (or blue). When not lit, the white first area and pink (or blue) Color) second area, and when lit, the white first area and second area are visible.

  Moreover, in the said Example, the example which partitioned off the lamp chamber 10 into the two areas 11 and 12 is demonstrated. However, in the present invention, the lamp chamber may be divided into three or more areas. For example, the second area with respect to the first area may be arranged on the left, right, left, right, up, down, arc, or fan shape. Conversely, the first area may be arranged on the left, right, left, right, up, down, arc shape, or fan shape with respect to the second area.

  Furthermore, in the said Example, the one bulb | ball 5 is used as a light source. However, in the present invention, a plurality of light sources may be used. However, it is necessary to determine the number of light sources used in consideration of the number of parts and the manufacturing cost.

It is a disassembled perspective view of the component which shows the Example of the vehicle lamp concerning this invention. Similarly, it is a front view showing a state excluding the lamp lens. Similarly, it is the III-III sectional view taken on the line in FIG. Similarly, it is the IV-IV sectional view taken on the line in FIG. Similarly, it is an expanded sectional view of the V section in FIG. Similarly, it is a partially expanded perspective view which shows a 2nd reflective surface. Similarly, it is a partially enlarged perspective view showing a modification of the second reflecting surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle lamp 2 Lamp housing 3 Lamp lens 4 Inner lens (partition member)
5 Bulb (light source)
6 Inner housing 7 First reflecting surface 8 Mounting hole 9 Socket 10 Lamp chamber 11 First area 12 Second area 13, 14 Prism 15 Small lamp chamber 16 Second reflecting surface 17 Small convex spherical surface 18 One paraboloid 19 Aperture

Claims (2)

A lamp housing and a lamp lens forming a lamp chamber;
A partition member for partitioning the lamp chamber into a plurality of areas;
A light source disposed in one area of the plurality of areas;
An inner housing that divides a space in another area of the plurality of areas into a plurality of lamp chambers;
A plurality of the lamp chambers defined by the inner housing, and a reflecting surface that reflects light transmitted through the partition member from the light source to the lamp lens side;
A vehicular lamp characterized by comprising:   The vehicular lamp according to claim 1, wherein the partition member is a colored inner lens that covers the light source.

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