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Vehicle Lamps

A technology for lamps and vehicles, applied in the direction of headlights, road vehicles, vehicle parts, etc., can solve problems such as difficulty in ensuring the brightness and expansion of horizontally long light distribution patterns

Active Publication Date: 2021-09-10
KOITO MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] By adopting the structure described in "Patent Document 1", although the horizontally long light distribution pattern can be formed as a continuous light distribution pattern, the light source image of each light emitting element expands in all directions, so it is difficult to ensure the horizontal Brightness of long light distribution pattern

Method used

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Examples

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Embodiment Construction

[0071] Embodiments of the present invention will be described below using the drawings.

[0072] figure 1 It is a front view showing the vehicle lamp 10 according to the embodiment of the present invention. in addition, figure 2 yes figure 1 The II-II line profile. image 3 yes figure 1 Sectional view of line III-III.

[0073] In these figures, the direction indicated by X is "front" for the lamp (also "forward" for the vehicle), and the direction indicated by Y is "right" orthogonal to "front" (for the vehicle). It is also "right", but it is "left" when viewing the lamp from the front), and the direction represented by Z is "above". The same applies to other figures.

[0074] As shown in these figures, the vehicle lamp 10 according to the present embodiment is a projection type lamp unit, and is configured to form an additional light distribution pattern for high beam in addition to the light distribution pattern for low beam.

[0075] This vehicle lamp 10 includes: ...

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PUM

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Abstract

According to the present invention, in a vehicle lamp configured to irradiate light emitted from a plurality of light emitting elements forward through a projection lens, a light distribution pattern formed by the irradiated light can be formed as a continuous bright light distribution pattern. By simultaneously turning on eleven light-emitting elements arranged side by side in the left-right direction, an aggregate of light source images of the respective light-emitting elements is formed into a horizontally long light distribution pattern. In addition, a plurality of diffusion lens elements for diffusing light emitted from each light emitting element in the left and right directions are formed on the front surface of the projection lens, and the plurality of diffusion lens elements are formed in the shape of vertical stripes when the lamp is viewed from the front. As a result, the light source images of the respective light emitting elements are formed in a state of partially overlapping each other. At this time, since the light source image of each light emitting element is expanded in the left and right directions by the plurality of diffusion lens elements instead of being diffused in all directions, the brightness of the laterally long light distribution pattern can be easily ensured.

Description

technical field [0001] The present invention relates to a projection type vehicle lamp. Background technique [0002] Conventionally, there is known a projection-type vehicle lamp configured to irradiate light from a light source arranged behind a projection lens forward through a projection lens. [0003] "Patent Document 1" describes that a light source of such a vehicle lamp includes a plurality of light emitting elements arranged in parallel in the left-right direction. [0004] Furthermore, in the vehicular lamp described in "Patent Document 1", by simultaneously turning on a plurality of light emitting elements, the light source image (that is, the image of the light emitting element reversely projected by the projection lens) of each light emitting element is The aggregate is configured to form a horizontally long light distribution pattern. [0005] In this case, in the vehicle lamp described in "Patent Document 1", by arranging a plurality of light-emitting elemen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S41/25F21S43/20F21W107/10
CPCF21S41/25F21S43/20F21W2107/10F21S41/143F21S41/151F21S41/153F21S41/255F21S41/275F21S41/321F21S41/663F21Y2115/10F21S41/285F21W2102/13
Inventor 末次麻希子
Owner KOITO MFG CO LTD