Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Lighting module for a motor vehicle comprising a modulated intensity coherent light source

A lighting module, motor vehicle technology, applied in the direction of motor vehicles, light sources, electric light sources, etc., can solve the problems of false alarms or omissions of safety systems, unreliable external ambient light, etc., to increase safety, reduce electromagnetic radiation, and reduce danger. Effect

Active Publication Date: 2021-10-26
VALEO VISION SA
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, prior art devices of this kind are unreliable with respect to external ambient light, which may be incident on the filter and / or sensor but generated by incoherent sources and diffusers
This shortcoming can cause security systems to generate false positives or false negatives

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lighting module for a motor vehicle comprising a modulated intensity coherent light source
  • Lighting module for a motor vehicle comprising a modulated intensity coherent light source
  • Lighting module for a motor vehicle comprising a modulated intensity coherent light source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] In the following description, like reference numerals will be used to describe like concepts via different embodiments of the invention. Thus, the numerals 100, 200 identify lighting modules in two different embodiments of the invention.

[0047] Unless stated otherwise, technical features specifically described for a given embodiment may be combined with technical features described in the context of other embodiments by way of non-limiting example.

[0048] figure 1A diagrammatic representation of a lighting module 100 according to an embodiment of the invention is shown. The light source 110 is adapted to emit coherent light in a main emission direction 112 . The light source 110 is, for example, a semiconductor source such as a laser diode. Modulation means 120 modulates the intensity of the light emitted by the source. The modulating signal may be sinusoidal or eg alternate between at least two consecutive values. The control device 150 is functionally connect...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention proposes a lighting module for a motor vehicle comprising a modulated intensity coherent light source. The features of the invention make it possible to increase the safety of devices of this kind by using a more reliable fault detection than the prior art. A method for controlling a device of this kind is also proposed.

Description

technical field [0001] The invention relates to the field of lighting devices, in particular for motor vehicles. The invention relates to a lighting device comprising a coherent light source. Background technique [0002] Motor vehicles are equipped with headlights, also referred to as headlights, which are used to illuminate the road ahead of the vehicle at night or in reduced brightness. It is known to use light sources adapted to emit coherent light in headlights for motor vehicles. This means, for example, semiconductor elements such as laser diodes. As is known, in devices of this kind, a light source using semiconductor elements is supplied with power through a DC / DC converter. A converter of this kind is suitable for converting a first current provided by, for example, a battery of a motor vehicle into a second current different from the first current and for supplying semiconductor elements with electric power. [0003] Illumination systems using laser diodes gen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F21S41/141H05B33/08H05B45/33F21Y115/10H05B44/00F21W107/10
CPCF21S41/141F21W2102/00H05B45/14F21S41/16F21S45/10F21S41/40F21S41/176H05B45/375H05B47/165F21S41/30F21V23/003F21V23/0464F21Y2115/30F21S43/10B60Q1/0076F21V25/00H01S5/062
Inventor 希巴斯丁·克里克
Owner VALEO VISION SA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com