Vehicle lamp fitting

Abstract

To provide a vehicle lamp fitting which may achieve a light emitting state having high visual effect.SOLUTION: A vehicle lamp fitting includes a light source, a transparent material which guides light from the light source and emits the light; and an inner panel supporting the light source and the transparent material. The transparent material is formed protruding from an opening of the inner panel to the front of the lamp fitting and has: an incidence surface into which light from the light source enters; an emission surface which faces the incidence surface and from which light entering from the incidence surface is emitted; and an upper surface and a lower surface which are non-light emitting parts. Edge parts of the opening of the inner panel are disposed at positions which correspond to the non-emitting parts of the transparent material.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vehicle lamp. [Background technology]

[0002] 2. Description of the Related Art There is known a vehicle lamp configured to guide light from a light source through a rod-shaped light guide and emit it from the light guide to the front of the vehicle (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-115397 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned vehicle lamp, it is required to realize a light emitting state with a high visual effect.

[0005] The present invention has been made in view of the above, and has an object to provide a vehicle lamp capable of realizing a light-emitting state with a high visual effect. [Means for solving the problem]

[0006] The vehicle lamp of the present invention comprises a light source, a light guide that guides and emits light from the light source, and an inner panel that supports the light source and the light guide, wherein the light guide is formed protruding from an opening in the inner panel toward the front of the lamp and has an incident surface into which light from the light source is incident, an exit surface that faces the incident surface and emits the light incident from the incident surface, and upper and lower surfaces that are non-light-emitting portions, and the edge of the opening of the inner panel is positioned at a position corresponding to the non-light-emitting portion of the light guide. Effect of the Invention

[0007] According to the present invention, it is possible to provide a vehicle lamp capable of realizing a light emitting state with a high visual effect. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a front view showing an example of a vehicle lamp according to the present embodiment. [Diagram 2] FIG. 2 is a diagram showing a configuration along the cross section AA in FIG. [Diagram 3] FIG. 3 is a diagram showing a configuration along the cross section BB in FIG. [Figure 4] FIG. 4 is a perspective view showing an example of a light guide according to the present embodiment. [Diagram 5] FIG. 5 is a diagram showing an example of the operation of the vehicle lamp according to this embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of a vehicle lamp according to the present invention will be described with reference to the drawings. Note that the present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that are replaceable and easy for a person skilled in the art, or those that are substantially the same.

[0010] In this embodiment, the front and rear directions are directions in a state where the lamp is mounted on a vehicle (mounted on a vehicle). For example, when mounted on the front of the vehicle, the front is the front direction (front side) and the rear is the rear direction (rear side). When mounted on the rear of the vehicle, the rear is the front direction (front side) and the front is the rear direction (rear side). When mounted on the side of the vehicle, the outside of the vehicle is the front direction (front side) and the inside of the vehicle is the rear direction (rear side). In this embodiment, the front direction can be expressed as the front of the lamp of the vehicle lamp.

[0011] Fig. 1 is a front view showing an example of a vehicle lamp 100 according to this embodiment. Fig. 2 is a diagram showing a configuration along the AA cross section in Fig. 1. Fig. 2 shows a state in which a light guide 40 is attached and a state in which the light guide 40 is removed. Fig. 3 is a diagram showing a configuration along the BB cross section in Fig. 1. As shown in Figs. 1 to 3, the vehicle lamp 100 includes light sources 10 and 20, a light guide rod 30, a light guide 40, and an inner panel 50.

[0012] The light sources 10 and 20 may be, for example, semiconductor light sources such as LEDs, laser light sources, etc. The light sources 10 and 20 have light emitting surfaces 11 and 21 that emit light. The light sources 10 and 20 emit light of different colors.

[0013] The light guiding rod 30 is, for example, rod-shaped and extends in a linear direction. The light guiding rod 30 has incident surfaces 31 and 32 at both ends in the longitudinal direction. The incident surface 31 faces the light emitting surface 11 of the light source 10. The light from the light source 10 is incident on the incident surface 31. The incident surface 32 faces the light emitting surface 21 of the light source 20. The light from the light source 20 is incident on the incident surface 32.

[0014] The light guiding bar 30 has a prism portion 34 on the rear side of the side surface 33. The prism portion 34 internally reflects the light incident from the incident surfaces 31 and 32 towards the front side.

[0015] The front side of the side surface 33 of the light guiding bar 30 serves as an exit surface 35. The exit surface 35 may be configured to output the light incident from the entrance surfaces 31 and 32 to the front side as parallel light.

[0016] The light guide 40 guides the light emitted from the light guide rod 30 and emits it to the front side. The light guide 40 is, for example, a rectangular flat plate in a plan view. Note that the shape of the light guide 40 in a plan view is not limited to a rectangular shape and may be another shape.

[0017] FIG. 4 is a perspective view showing an example of the light guide 40 according to the present embodiment. Each direction shown in FIG. 4 indicates a direction in a state in which the light guide 40 is attached to the inner panel 50. The light guide 40 has an incident surface 41, an exit surface 42, an upper surface 43, and a lower surface 44. The incident surface 41 faces the rear surface. The incident surface 41 is disposed opposite to the exit surface 35 of the light guide rod 30. The light emitted from the exit surface 35 of the light guide rod 30 is incident on the incident surface 41. When the light emitted from the exit surface 35 of the light guide rod 30 is parallel light, the light emitted from the exit surface 35 of the light guide rod 30 is incident on the incident surface 41 as parallel light. In this case, the incident surface 41 can be, for example, planar. In addition, when the light emitted from the exit surface 35 of the light guiding rod 30 is not parallel light, the entrance surface 41 can be formed into a shape in which the light emitted from the exit surface 35 of the light guiding rod 30 and reaching the entrance surface 41, i.e., the incident light, becomes parallel light directed toward the exit surface 42.

[0018] The exit surface 42 faces the front side. The exit surface 42 faces the incident surface 41. The exit surface 42 emits the light that enters from the incident surface 41 and travels inside the light guide 40 to the front side. The exit surface 42 is, for example, planar. When the incident light that enters the incident surface 41 is parallel light, or when incident light that is different from parallel light becomes parallel light at the incident surface 41 and travels inside the light guide 40, parallel light is emitted from the exit surface 42.

[0019] The upper surface 43 and the lower surface 44 are, for example, planar and opposed to each other. The upper surface 43 and the lower surface 44 are non-light-emitting portions. That is, the light guide 40 is formed so that light is not emitted from the upper surface 43 and the lower surface 44.

[0020] The light guide 40 has a clear portion 45 and a colored portion 46. The clear portion 45 is capable of transmitting light from the light sources 10 and 20, and is formed, for example, using a colorless and transparent material. Examples of materials constituting the clear portion 45 include resin. The clear portion 45 is formed in a rectangular flat plate shape. In this embodiment, the end face on the rear side of the clear portion 45 is the above-mentioned incident surface 41. Also, the end face on the front side of the clear portion 45 is the above-mentioned exit surface 42. Also, the end face on the upper side of the clear portion 45 is the above-mentioned upper surface 43.

[0021] The diameter of the light guiding rod 30 is formed in accordance with the vertical dimension (thickness) of the clear portion 45. In other words, the diameter of the light guiding rod 30 and the thickness of the clear portion 45 are set so that the light emitted from the light guiding rod 30 is incident on the incident surface 41 without any waste.

[0022] The colored portion 46 is disposed on at least one of the upper and lower end faces of the clear portion 45. That is, the colored portion 46 is disposed on at least one of the upper face 43 and the lower face 44 of the light guide 40. In this embodiment, the colored portion 46 is disposed on the lower face 44 of the light guide 40. In other words, the colored portion 46 is disposed on the lower end face of the clear portion 45. The lower end face of the colored portion 46 is the above-mentioned lower face 44. The colored portion 46 has a chamfered portion 46a formed at the end on the front side.

[0023] The colored portion 46 may be configured to be molded in two colors together with the clear portion 45. The colored portion 46 may also be a paint layer formed on at least one of the upper and lower end faces of the clear portion 45. The colored portion 46 may be formed in a color different from the emission color of one or both of the light sources 10 and 20. The color of the colored portion 46 may be set to, for example, the color of the vehicle body, the color of the outer lens of the vehicle lamp, or the like.

[0024] The inner panel 50 holds the light sources 10, 20 and the light guiding rod 30. The inner panel 50 supports the light guiding body 40 in a detachable manner.

[0025] The inner panel 50 has a base portion 51 and a mounting portion 52. The base portion 51 holds the light sources 10, 20 and the light guide rod 30. The mounting portion 52 mounts the light guide 40. The mounting portion 52 has an opening 52a. The opening 52a is disposed at a position where an edge portion 52b corresponds to the upper surface 43 and the lower surface 44, which are non-light-emitting portions of the light guide 40.

[0026] The mounting section 52 has an abutment section 52c (see FIG. 2). The abutment section 52c restricts the movement of the light guide 40 in the depth direction (back direction) when the light guide 40 is mounted on the mounting section 52. The light guide 40 is inserted into the mounting section 52 until it abuts against the abutment section 52c, whereby the light guide 40 is mounted on the mounting section 52. The abutment section 52c has a vertical height set in accordance with the thickness of the colored section 46. That is, when the light guide 40 abuts against the abutment section 52c, the abutment section 52c covers the end face on the back side of the colored section 46. With this configuration, the light emitted from the emission surface 35 of the light guide rod 30 is prevented from entering the end face on the back side of the colored section 46.

[0027] The mounting portion 52 is formed such that, in a state in which the light guide 40 is mounted, the light guide 40 protrudes from the inner panel 50 to the front side. With this configuration, the light guide 40 in a state in which it is mounted in the mounting portion 52 can be visually confirmed.

[0028] Next, the operation of the vehicle lamp 100 configured as described above will be described. Fig. 5 is a diagram showing an example of the operation of the vehicle lamp 100 according to this embodiment. In the following example, the case where the light source 10 is turned on will be described as an example, but the same explanation can be applied to the case where the light source 20 is turned on. By turning on the light source 10, light is emitted from the light-emitting surface 11. The light emitted from the light-emitting surface 11 enters the light guide rod 30 from the entrance surface 31 and is internally reflected by the prism portion 34 to the front side.

[0029] 5, light L reflected internally by prism portion 34 is emitted from exit surface 35 to the front side as parallel light, i.e., light traveling along the horizontal direction, and enters incident surface 41 of light guide 40. Light L incident on incident surface 41 travels toward the front side within clear portion 45. At this time, since light L travels along the horizontal plane, it reaches exit surface 42 without being affected by colored portion 46, and is emitted from exit surface 42 to the front side.

[0030] In this case, light L is not emitted from upper surface 43 and lower surface 44, but is emitted from exit surface 42. Therefore, upper surface 43 and lower surface 44 become non-light-emitting portions, and exit surface 42 becomes a light-emitting portion. In this manner, by making only one surface (exit surface 42) of light guide 40 emit light and not making the other surfaces (upper surface 43, lower surface 44) emit light, it is possible to achieve a light-emitting state with a high visual effect.

[0031] Furthermore, when an observer views the light guide 40 from, for example, an obliquely upward direction on the front side, the color of the colored portion 46 is visible through the clear portion 45. When the light guide 40 is viewed from an angle at which the color of the colored portion 46 is visible through the clear portion 45 or an angle at which the colored portion 46 is directly visible, not limited to an obliquely upward direction on the front side, the color of the colored portion 46 is visible as the color of the light guide 40. In contrast, the light L emitted from the exit surface 42 of the light guide 40 has an emission color different from that of the colored portion 46. Therefore, a light-emitting state with a higher visual effect can be realized in which light of a color different from the color visible when the observer views the light guide 40 is emitted from the exit surface 42.

[0032] As described above, the vehicle lamp 100 of this embodiment includes the light sources 10, 20, the light guide 40 that guides and emits light from the light sources 10, 20, and the inner panel 50 that supports the light sources 10, 20 and the light guide 40. The light guide 40 is formed to protrude toward the front side from the opening 52a of the inner panel 50, and has an incident surface 41 on which light from the light sources 10, 20 is incident, an exit surface 42 that faces the incident surface 41 and emits the light that has entered from the incident surface 41, and an upper surface 43 and a lower surface 44 that are non-light-emitting portions. The edge portion 52b of the opening 52a of the inner panel 50 is positioned at a position corresponding to the non-light-emitting portion of the light guide 40.

[0033] According to this configuration, the light guide 40 is held by the edge 52b of the opening 52a of the inner panel 50, and is attached to the inner panel in a state where it protrudes from the opening 52a to the front side. Therefore, an observer can visually recognize multiple surfaces of the light guide 40 in a state where it is attached to the inner panel 50. As a result, it is possible to realize a light-emitting state with a high visual effect by making the light source 10, 20 emit light and making it enter the incident surface 41 of the light guide 40, for example, making only the exit surface 42 of the light guide 40 emit light and not making the other surfaces (upper surface 43, lower surface 44) emit light.

[0034] In the vehicle lamp 100 of this embodiment, the light guide 40 has a clear portion 45 that guides light from the light sources 10, 20, and a colored portion 46 arranged on at least one of the upper surface 43 and the lower surface 44, and the colored portion 46 is formed in a color different from the emission color of the light sources 10, 20.

[0035] According to this configuration, a light emitting state with a high visual effect can be realized in which light of a color different from the color visually recognized when the observer looks at the light guide 40 is emitted from the emission surface 42.

[0036] The vehicle lamp 100 of this embodiment further includes a light guiding rod 30 that guides light from the light sources 10, 20 and emits it toward the light guide 40, and the diameter of the light guiding rod 30 is formed to correspond to the thickness of the clear portion 45 of the light guide 40.

[0037] According to this configuration, the light from the light sources 10 and 20 can be made to enter the light guide 40 efficiently.

[0038] In the vehicle lamp 100 according to this embodiment, the light guiding bar 30 outputs the light from the light sources 10 and 20 as parallel light toward the incident surface 41 of the light guiding body 40 .

[0039] According to this configuration, since parallel light can be incident on the incident surface 41 of the light guide 40, attenuation of the light when guided by the clear portion 45 can be suppressed.

[0040] In the vehicle lamp 100 according to this embodiment, the entrance surface 41 is provided so that incident light becomes parallel light directed toward the exit surface .

[0041] According to this configuration, the light incident on the incident surface 41 of the light guide 40 travels through the clear portion 45 as parallel light, so that attenuation of the light when guided through the clear portion 45 can be suppressed.

[0042] The technical scope of the present invention is not limited to the above-mentioned embodiment, and appropriate modifications can be made without departing from the spirit of the present invention. For example, in the above-mentioned embodiment, the light from the light sources 10 and 20 is guided to the light guide 40 by the light guide rod 30, but the present invention is not limited to this configuration. For example, the light from the light sources 10 and 20 may be directly incident on the light guide 40 without the light guide rod 30.

[0043] In the above embodiment, the case where two types of light sources, the light sources 10 and 20, are provided has been described as an example, but no points are deducted for this configuration. A configuration in which only one type of light source is provided may also be used. [Explanation of symbols]

[0044] L...light ray, 10,20...light source, 11,21...light emitting surface, 30...light guide rod, 31,32,41...entrance surface, 33...side surface, 34...prism portion, 35,42...exit surface, 40...light guide body, 43...upper surface, 44...lower surface, 45...clear portion, 46...colored portion, 50...inner panel, 51...base portion, 52...mounting portion, 52a...opening, 52b...edge portion, 52c...butt portion, 100...vehicle lamp

Claims

1. A light source; A light guide that guides light from the light source and emits it; an inner panel supporting the light source and the light guide; Equipped with the light guide is formed to protrude from the opening of the inner panel toward the front of the lamp, and has an incident surface on which light from the light source is incident, an exit surface facing the incident surface and exiting the light incident from the incident surface, and upper and lower surfaces which are non-light-emitting portions; The edge of the opening of the inner panel is disposed at a position corresponding to the non-light-emitting portion of the light guide. Vehicle lighting fixtures.

2. The light guide is A clear portion that guides light from the light source; a colored portion disposed on at least one of the upper surface and the lower surface, The colored portion is formed in a color different from the emission color of the light source.

2. A vehicle lamp according to claim 1.

3. Further comprising a light guide rod for guiding light from the light source and emitting the light toward the light guide; The diameter of the light guide rod is formed to correspond to the thickness of the clear portion of the light guide body.

3. A vehicle lamp according to claim 2.

4. The light guide rod outputs the light from the light source as parallel light toward the incident surface of the light guide.

4. A vehicle lamp according to claim 3.

5. The entrance surface is provided so that incident light is parallelized toward the exit surface.

4. A vehicle lamp according to claim 3.

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