# US 10,502,379 B2 · Vehicle lighting fixture

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- Number: US 10,502,379 B2
- Document ID: US10502379B2
- Status: Granted
- Kind: B2
- Application number: 15/077,286
- Filed: 2016-03-22
- Published: 2016-09-29
- Granted: 2019-12-10
- Earliest claimed: 2015-03-24
- Assignees: Stanley Electric Co., Ltd.
- Applicants: Stanley Electric Co., Ltd.
- Inventors: Katsuhiko Kono; Shinji Yamagata
- Web page: https://patentgrep.com/patent/US10502379B2

## CPC

- F21S 41/689: Flaps, i.e. screens pivoting around one of their edges
- F21S 41/148: the main emission direction of the LED being perpendicular to the optical axis
- F21S 41/365: successively reflecting the light
- F21S 41/255: Lenses with a front view of circular or truncated circular outline
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS

## Abstract

A vehicle lighting fixture can suppress the generation of uneven luminance regions. The vehicle lighting fixture can include two light sources arranged side by side on right and left sides, two reflecting portions configured to reflect light from the two light sources, respectively, and a shading portion configured to shield part of light reflected by the two reflecting portions. The shading portion includes left and right side portions inclined from its inside portion to its outside portion downward.

## Claims

### Claim 1

A vehicle lighting fixture comprising:
two light sources arranged side by side on right and left sides;
two reflecting portions configured to reflect light from the two light sources, respectively; and
a shading portion configured to shield part of light reflected by the two reflecting portions, the shading portion including a front portion and a top surface portion, the top surface portion including a flat center portion and left and right side portions inclined sideward from an inside portion thereof to an outside portion thereof downward, wherein
each of the reflecting portions extends sideward and then forward to form a sideward portion configured to surround the shading portion,
the front portion and the center portion thereof shield part of light reflected by the corresponding reflecting portions corresponding to the respective two light sources, and
the inclined left and right side portions face to the corresponding sideward portions of the reflecting portions so that the left and right side portions diffuse the light reflected by noncorresponding reflecting portions to the two light sources.

### Claim 2 (depends on 1)

The vehicle lighting fixture according to claim 1, further including a projector lens disposed in front of the two reflecting portions and the shading portion, and wherein the left and right side portions and the corresponding reflecting portions are configured to reflect light such that light from one of the light sources can be reflected between the noncorresponding reflecting portion and the side portion corresponding to the noncorresponding reflecting portion to exit through the projector lens.

### Claim 3 (depends on 2)

The vehicle lighting fixture according to claim 2, further comprising a rotating mechanism configured to rotate the shade so that a front portion of the shade vertically moves.

### Claim 4 (depends on 3)

The vehicle lighting fixture according to claim 3, wherein, when the rotating mechanism rotates the shade so that the front portion of the shade moves upward, the vehicle lighting fixture forms a low-beam light distribution pattern, and when the rotating mechanism rotates the shade so that the front portion of the shade moves downward, the vehicle lighting fixture forms a high-beam light distribution pattern.

### Claim 5 (depends on 2)

The vehicle lighting fixture according to claim 2, wherein the two reflecting portions are integrally and continuously formed to be a free-curved face.

### Claim 6 (depends on 1)

The vehicle lighting fixture according to claim 1, further comprising a rotating mechanism configured to rotate the shade so that a front portion of the shade vertically moves.

### Claim 7 (depends on 6)

The vehicle lighting fixture according to claim 6, wherein, when the rotating mechanism rotates the shade so that the front portion of the shade moves upward, the vehicle lighting fixture forms a low-beam light distribution pattern, and when the rotating mechanism rotates the shade so that the front portion of the shade moves downward, the vehicle lighting fixture forms a high-beam light distribution pattern.

### Claim 8 (depends on 6)

The vehicle lighting fixture according to claim 6, wherein the center portion and the left and right side portions of the top surface portion of the shading portion is subjected to a mirror-finishing to become reflecting surfaces.

### Claim 9 (depends on 8)

The vehicle lighting fixture according to claim 8, wherein
when the shading portion is rotated to move the front portion thereof downward,
the reflecting surface of the left side portion of the shading portion is disposed at a position such that the light emitted from the light source on the right side and having been incident on the reflecting surface of the left side portion is repeatedly reflected between the reflecting face and the left side portion, and
the reflecting surface of the right side portion of the shading portion is disposed at a position such that the light emitted from the light source on the left side and having been incident on the reflecting surface of the right side portion is repeatedly reflected between the reflecting face and the right side portion.

### Claim 10 (depends on 8)

The vehicle lighting fixture according to claim 8, further comprising a projector lens disposed in front of the two reflecting portions and the shading portion, and wherein the left and right side portions and the corresponding reflecting portions are configured to reflect light such that light from one of the light sources can be reflected between the noncorresponding reflecting portion and the side portion corresponding to the noncorresponding reflecting portion to exit through the projector lens.

### Claim 11 (depends on 10)

The vehicle lighting fixture according to claim 10, being capable of projecting light rays with a high-beam light distribution pattern when the two light sources are turned on while the shading portion is rotated to move the front portion thereof downward.

### Claim 12 (depends on 11)

The vehicle lighting fixture according to claim 11, wherein
when the shading portion is rotated to move the front portion thereof downward,
the reflecting surface of the left side portion of the shading portion is disposed at a position such that the light emitted from the light source on the right side and having been incident on the reflecting surface of the left side portion is repeatedly reflected between the reflecting face and the left side portion, and
the reflecting surface of the right side portion of the shading portion is disposed at a position such that the light emitted from the light source on the left side and having been incident on the reflecting surface of the right side portion is repeatedly reflected between the reflecting face and the right side portion.

### Claim 13 (depends on 10)

The vehicle lighting fixture according to claim 10, wherein
when the shading portion is rotated to move the front portion thereof downward,
the reflecting surface of the left side portion of the shading portion is disposed at a position such that the light emitted from the light source on the right side and having been incident on the reflecting surface of the left side portion is repeatedly reflected between the reflecting face and the left side portion, and
the reflecting surface of the right side portion of the shading portion is disposed at a position such that the light emitted from the light source on the left side and having been incident on the reflecting surface of the right side portion is repeatedly reflected between the reflecting face and the right side portion.

### Claim 14 (depends on 6)

The vehicle lighting fixture according to claim 6, wherein the two reflecting portions are integrally and continuously formed to be a free-curved face.

### Claim 15 (depends on 1)

The vehicle lighting fixture according to claim 1, wherein the center portion and the left and right side portions of the top surface portion of the shading portion is subjected to a mirror-finishing to become reflecting surfaces.

### Claim 16 (depends on 1)

The vehicle lighting fixture according to claim 1, wherein an angle formed between each of the left and right side portions of the shading portion and a reflecting face of the corresponding one of the reflecting portions is set smaller than an angle formed between a virtual extension line from the center portion and the reflecting face.

### Claim 17 (depends on 1)

The vehicle lighting fixture according to claim 1, wherein the two reflecting portions are integrally and continuously formed to be a free-curved face.
