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Vehicle Lamps

A technology for lamps and vehicles, applied to headlights, road vehicles, vehicle parts, etc., to achieve the effect of improving light utilization

Active Publication Date: 2017-06-09
KOITO MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to this technology, the flexibility of forming a light distribution pattern can be enhanced, but there is room for improvement in terms of light utilization efficiency in this vehicle lamp

Method used

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  • Vehicle Lamps
  • Vehicle Lamps
  • Vehicle Lamps

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0024] figure 1 is a vertical sectional view showing a schematic structure of the vehicle lamp according to the first embodiment. figure 2 is a perspective view schematically showing the internal structure of the vehicle lamp according to the first embodiment. The vehicle lamp 1 according to the present embodiment is a vehicle headlamp device having a pair of headlamp units arranged left and right in front of the vehicle. Headlamp units have substantially the same structure except that their structures are mirror images of each other, and therefore figure 1 One of the headlamp units is shown as the vehicle lamp 1 .

[0025] The vehicle lamp 1 includes a lamp body 2 having an opening on the vehicle front side, and a transparent cover 4 attached to cover the opening of the lamp body 2 . The transparent cover 4 is formed of light-transmitting resin or glass. The light source 10 , the optical component 20 , the light distribution pattern forming part 30 , the optical componen...

no. 2 example

[0055] The structure of the vehicular lamp according to the second embodiment is basically the same as that of the vehicular lamp 1 according to the first embodiment except that two light sources and optical components corresponding to the two light sources are provided. The same components as those of the first embodiment are denoted by the same reference numerals and description and illustration thereof will be omitted. Figure 9 is a vertical sectional view schematically showing the internal structure of the vehicle lamp according to the second embodiment. Figure 10 is a perspective view schematically showing the internal structure of the vehicular lamp according to the second embodiment. Figure 11A , 11B , 12A, and 12B are schematic diagrams showing examples of light distribution patterns formed by the vehicular lamp according to the second embodiment.

[0056] The vehicle lamp 1 according to the present embodiment includes a first light source 10A and a second light s...

no. 3 example

[0065] The structure of the vehicular lamp according to the third embodiment is basically the same as that of the vehicular lamp 1 according to the first or second embodiment except that the light distribution pattern forming portion is a liquid crystal shutter. The same components as those of the first or second embodiment are denoted by the same reference numerals and description and illustration thereof will be omitted. Figure 13A is a vertical sectional view schematically showing the internal structure of the vehicle lamp according to the third embodiment. Figure 13B is a perspective view schematically showing the internal structure of the vehicular lamp according to the third embodiment.

[0066] The vehicle lamp 1 of the present embodiment includes a first light source 10A and a second light source 10B as light sources 10 . Furthermore, the vehicle lamp 1 includes a first optical component 20C and a second optical component 20D as the optical component 20 . The first...

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PUM

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Abstract

The invention relates to a lamp for vehicles, comprising: a light source (10); a light distribution pattern forming part (30) formed by arranging a plurality of optical elements; The pattern forming part (30) irradiates light from the light source. The optical component (20) irradiates the light source light to the light distribution pattern forming part (30) so that a specific light intensity area (R1) including a first illuminance area (R1) and a second illuminance area (R2) having a lower illuminance is formed. Illumination distribution. The light distribution pattern forming part (30) irradiates light for forming a specific first light distribution pattern with the optical element overlapping with the first illuminance region (R1), and utilizes light that overlaps with the second illuminance region (R1) (R2) The overlapping optical elements irradiate light for forming a second light distribution pattern having a lower illuminance, or the optical elements overlapping the second illuminance region are brought into a non-irradiation state.

Description

technical field [0001] The invention relates to a vehicle lamp. Background technique [0002] Japanese Patent Application Publication No. 2008-143510 (JP 2008-143510A) describes an adaptive light distribution system that includes a light source, a micro-electromechanical system (MEMS) that controls light distribution by reflecting light from the light source. ) mirror, and light-collecting lens. The adaptive light distribution system forms a desired light distribution pattern by performing on-off control of each of a plurality of micromirrors of the MEMS mirror. [0003] In a typical vehicular lamp including a MEMS mirror, the micromirror array is irradiated with light having approximately uniform brightness, the light is reflected toward the front of the lamp by the micromirror in the on state, and the light is directed toward the light by the micromirror in the off state. The absorbing material reflects, thereby forming the desired light distribution pattern in front of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/10F21V14/00F21W101/02F21W107/10
CPCF21S41/675F21S41/14F21S41/36B60Q1/085B60Q1/143B60Q2300/056B60Q2300/122B60Q2300/32B60Q2400/50F21S41/18F21S41/16F21S41/365F21S41/176
Inventor 八木隆之山村聪志
Owner KOITO MFG CO LTD