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Lamp for vehicles

A technology for lamps and vehicles, applied in the direction of headlights, vehicle parts, vehicle lighting systems, etc., can solve the problems of large curvature of lens order 6s, poor appearance of lamps, lack of transparency, etc., and achieve the effect of strong light uniformity

Inactive Publication Date: 2003-05-28
KOITO MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the above-mentioned existing vehicle lamps, since the formation of the light distribution pattern depends entirely on the deflection and diffusion function of the lamp glass 6, it is difficult to obtain a light distribution pattern with strong light uniformity, and due to the difference between the lens steps 6s High curvature, resulting in a lack of transparency and poor appearance of the luminaire

Method used

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Embodiment Construction

[0037] First, an embodiment of the present invention will be described.

[0038] Fig. 1 is the front view that shows the vehicle lamp 10 of present embodiment, Fig. 2 and image 3 Its front section view and side section view.

[0039] As shown in the figure, the vehicle lamp 10 is a tail light arranged at the rear end of the vehicle body, which includes a reflector 14 inserted with a light source bulb 12, and is arranged in front of the reflector 14 (that is, the front of the lamp and the rear of the vehicle body). , hereinafter the same) the headlight glass 16.

[0040] The light source bulb 12 as its light source 12a is centered on a reference axis Ax extending in the front-rear direction and extends in a horizontal direction perpendicular to the reference axis Ax, and has a so-called C-6 filament.

[0041] The reflector 14 has a reflective surface 14a that reflects light emitted from the light source 12a forward, and the reflective surface 14a has a laterally long rectangu...

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Abstract

The invention provides a lamp for vehicle, capable of easily providing a light distribution pattern with reduced light unevenness, superior in appearance and feeling of transparency. The shape of a horizontal section Sho, including a base axis Ax on a reflective surface, is set to a curved shape for convergingly reflecting the light from a light source 12a toward the base axis Ax on the horizontal section Sho. The shape of a vertical section which includes an axis line for reflected light emitting direction at each point on the horizontal section Sho, including the base axis Ax on the reflective surface 14a, is set to a curved shape to reflect the light from the light source 12a approximately parallel to the axis line for reflected light-emitting direction in a center reflective area 14a1 in the left and right neighborhood of the base axis Ax. The shape is set to a curved shape to convergingly reflect the light from the light source 12a towards the axis line for reflected light-emitting direction in a peripheral reflective area 14a2 on both left and right sides of the center reflective area 14a1. This constitution easily provides a light distribution pattern, having an approximately oblong rectangular spread with reduced light unevenness.

Description

technical field [0001] The invention relates to a vehicle lamp, in particular to a reflective surface of a reflector. Background technique [0002] Vehicle lamps are generally provided with a light source, reflector and lamp glass, but in conventional vehicle lamps, as shown in FIG. The reflective surface 2a can reflect the light emitted by the light source 4 in a direction approximately parallel to the reference axis Ax, and deflect and diffuse the reflected light through the lens step (lensstep) 6s formed on the lamp glass 6, Thus forming the desired light distribution pattern. [0003] However, in the above-mentioned existing vehicle lamps, since the formation of the light distribution pattern depends entirely on the deflection and diffusion function of the lamp glass 6, it is difficult to obtain a light distribution pattern with strong light uniformity, and due to the difference between the lens steps 6s The curvature is large, so there is a lack of transparency and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/10F21V7/00F21V17/00
CPCF21S48/1335F21S41/323
Inventor 萨川秀昭天野靖之川岛宏之
Owner KOITO MFG CO LTD
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