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Application of electrochromic polymers as color and opacity light filters

An electrochromic and optical filter technology, applied in the field of automotive lighting systems, can solve the problem of high cost

Inactive Publication Date: 2018-08-31
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the costs associated with changing light intensity (e.g. using pulse width modulation) are high and can generate a lot of heat

Method used

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  • Application of electrochromic polymers as color and opacity light filters
  • Application of electrochromic polymers as color and opacity light filters
  • Application of electrochromic polymers as color and opacity light filters

Examples

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Embodiment Construction

[0037] The following description is merely exemplary in nature and is not intended to limit the invention and its application or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0038] The presence of stated features, regions, integers, steps, operations, elements and / or components does not preclude one or more other features, regions, integers, steps, operations, elements, components and / or combinations thereof.

[0039] It should be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, l...

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PUM

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Abstract

A vehicle lighting system includes a light source; a first lighting subsystem includes a first light path having a first end positioned to receive light from the light source and to deliver the lightto a second end of the first light path; and a first electrochromic filter disposed in the first light path; and a second lighting subsystem includes a second light path having a first end positionedto receive light from the light source and to deliver the light to a second end of the second light path; and a second electrochromic filter disposed in the second light path, wherein the first lighting subsystem provides a first lighting function, and wherein the second lighting subsystem provides a second lighting function.

Description

Background technique [0001] The invention relates to an automotive lighting system comprising an electrochromic polymer filter. [0002] Vehicle interior and exterior lighting is used to provide front lighting, position indication, braking functions, turn signals, and other essential automotive functions during the day and at night. Government regulations often require vehicle lighting to adhere to specific standards related to placement, color, light intensity and photometric performance. Therefore, it has been difficult to develop a comprehensive lighting system that complies with government standards, conforms to vehicle style, and appeals to consumers. [0003] For automotive interior and exterior lighting, it is often necessary to use light sources of different colors to illuminate a given lens, and to activate lights with different functions at different times. This approach follows carefully matching the color between the output of the light source and the color of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S41/00F21S43/00F21S8/00F21V9/00F21W107/10
CPCF21S8/00F21S41/00F21S43/00F21V9/00F21W2107/10F21S41/645F21S41/663F21S43/255F21W2102/00F21W2103/00F21W2103/20F21W2106/00G02F1/15165G02F1/157G02F1/163
Inventor N·V·弗里泽尔G·M·卡斯蒂略
Owner GM GLOBAL TECH OPERATIONS LLC
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