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Lamp fitting for vehicle

A technology for lamps and vehicles, applied in road vehicles, motor vehicles, lighting and heating equipment, etc., can solve problems such as insufficient utilization, and achieve the effect of reducing depth and height dimensions

Inactive Publication Date: 2010-11-17
ICHIKOH IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The problem to be solved by the present invention is the following problems in the existing vehicle lamps: it cannot meet the requirements of reducing the depth dimension in the horizontal direction and the height dimension in the vertical direction; light that is not controlled for light distribution is emitted from the projection lens; and light from a semiconductor-type light source is not effectively utilized

Method used

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  • Lamp fitting for vehicle
  • Lamp fitting for vehicle
  • Lamp fitting for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Figure 1 to Figure 7 Example 1 of the vehicle lamp of the present invention is shown. The configuration of the vehicle lamp of the first embodiment will be described below. In the drawings, reference numeral 1 is the vehicle lamp of the first embodiment. This example is, for example, a headlight for an automobile. The above vehicle lamp 1 includes a first reflector (main reflector, shade member and reflector) 2 on the front side, a second reflector (sub-reflector, lampshade and reflector) 3 on the rear side, a semiconductor-type light source 4, A lampshade 5, a projection lens (convex lens, condenser lens) 6, a plane reflection surface 7, a heat dissipation member (not shown), a light shielding member 8, a lamp housing and a lamp glass (for example, transparent external lens, etc.).

[0046] The first reflector 2 , the second reflector 3 , the semiconductor-type light source 4 , the lamp cover 5 , the projection lens 6 , the planar reflection surface 7 , the heat d...

Embodiment 2

[0094] Figure 8 as well as Figure 9 Example 2 of the vehicle lamp of the present invention is shown. in the figure, with Figure 1 to Figure 7 The same symbols denote the same components. Hereinafter, the vehicle lamp 1A of the second embodiment will be described.

[0095] The vehicle lamp 1A of the second embodiment has the second focal point of the second portion 18, the second focal point of the third portion 19, and the second focal point of the fourth portion 20 as a common or substantially common focal point F26 on the first additional reflection surface. , On the other hand, the common reflection surface 28 is provided on the second additional reflection surface at or near the above-mentioned common focal point F26. The common reflection surface 28 of the second additional reflection surface is composed of an elliptical reflection surface or other curved or plane reflection surfaces.

[0096] The vehicular lamp 1A of the second embodiment has the above-mentioned ...

Embodiment 3

[0099] Figure 10 ~ Figure 12 Example 3 of the vehicle lamp of the present invention is shown. in the figure, with Figure 1 to Figure 9 The same symbols denote the same components. Hereinafter, the vehicle lamp 1B of the third embodiment will be described.

[0100] In the vehicle lamp 1B of the third embodiment, the first additional reflection surface 29 for reflecting the light L3 from the semiconductor-type light source 4 in a predetermined direction is provided on the light shielding member 8 . Such as Figure 10 As shown, the above-mentioned first additional reflection surface 29 is composed of an elliptical reflection surface, and has a first focus F17 located at or near the first focus F1 of the first reflection surface 9, and a position above the first focus F17. The second focus of 27 . On the other hand, a second additional reflection surface 30 is provided on the globe 5 . The second additional reflection surface 30 is positioned near the second focal point 27...

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Abstract

The invention relates to a lamp fitting for vehicles, aiming to solve the problem that the prior lamp fitting for the vehicles can not effectively sufficiently utilize light from a semiconductor type light source. The lamp fitting for the vehicles collocates a flat reflecting surface (7) with a lens axis (Z1-Z1) of a projection lens (6) in a crosswise way and between the projection lens (6) and alens focus (FL1) of the projection lens (6) and collocates a light shading part (8) between the semiconductor type light source (4) and the projection lens (6), wherein the light shading part (8) shades direct light (L6) radiating to the projection lens (6) from the semiconductor type light source (4), and an additional reflecting surface (17-21) reflected by light (L3) from the semiconductor typelight source (4) along a prescriptive direction is arranged on the light shading part (8), thereby the invention can effectively sufficiently utilize the light (L3) from the semiconductor type lightsource (4).

Description

technical field [0001] The present invention relates to a projection type vehicle lamp using, for example, a semiconductor-type light source such as an LED as a light source. In particular, the present invention relates to a vertical projection lamp whose depth and height can be miniaturized. Such a vehicle lamp can prevent light other than a predetermined light distribution pattern projected from a projection lens, that is, light without light distribution control, from being emitted from the projection lens. , and can effectively make full use of the light from the semiconductor-type light source. Background technique [0002] Such vehicle lamps are conventionally known (for example, Patent Document 1, Patent Document 2, and Patent Document 3). This conventional vehicle lamp will be described below. This conventional vehicular lamp includes: a reflector having an elliptical reflective surface, a semiconductor-type light source such as an LED in which a light-emitting por...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/10F21V13/00F21V7/09F21V5/04F21V11/16F21V17/00F21Y101/02F21W101/02F21W107/10F21Y115/10
Inventor 西畑孝司
Owner ICHIKOH IND LTD
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