Laser headlight, illumination system and laser safety protection method thereof

A lighting system and safety protection technology, which is applied in lighting devices, lighting and heating equipment, and components of lighting devices, etc., can solve problems such as human eye injury and laser leakage, and achieve the effect of passive safety protection.

Inactive Publication Date: 2019-05-31
HASCO VISION TECHNOLOGY CO LTD
View PDF19 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a laser headlight and its lighting system, and laser safety protection method. The present invention sets a polarization beam splitter prism in the laser headlight to realize passive safety protection

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
  • Laser headlight, illumination system and laser safety protection method thereof
  • Laser headlight, illumination system and laser safety protection method thereof
  • Laser headlight, illumination system and laser safety protection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Embodiment of laser headlight lighting system:

[0027] Such as image 3 and 4 As shown, the lighting system of the laser headlight of the present invention includes a laser light source 1, a fluorescent screen 1a, a reflector 3, a polarization beam splitter prism 2, a filter 4, a light leakage monitoring device 5 and a radiator 6. Wherein, the laser light source 1 and the light leakage monitoring device 5 are arranged on the radiator, the fluorescent screen is arranged at the light source outlet of the laser light source, the reflector is arranged on the light transmission path of the polarization beam splitter prism, and the light leakage monitoring device is arranged on the reflected light path of the polarization beam splitter prism , and the filter is arranged between the light leakage monitoring device and the polarizat...

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 relates to a laser headlight, an illumination system and a laser safety protection method thereof. The laser headlight is provided with a polarization beam splitting prism, wherein a laser light source is arranged on an incident surface of the polarization beam splitting prism, and a reflector is arranged on a light transmission path of the polarization beam splitting prism. The laser generated by the laser light source is converted into white light by a fluorescent layer and then irradiated to the polarization beam splitting prism, wherein P polarized light in the white light isirradiated to the reflector through the polarization beam splitting prism and is reflected by the reflector and then irradiated to a road surface to form illumination. If a phosphor layer of a fluorescent screen falls off or is broken down by the laser, the non-converted laser is radiated to the polarization beam splitting prism directly. The laser, as S polarized light, is reflected totally by the polarization beam splitting prism, which avoids the laser radiating to the road surface through the reflector and causing damage to pedestrians, and achieves the passive safety protection. The laser safety protection method solves the problem that the laser headlight causes damage to human eyes due to laser leakage caused by the damage of the fluorescent layer.

Description

technical field [0001] The invention relates to the safety protection of laser headlights, in particular to a laser headlight, its lighting system, and a laser safety protection method. Background technique [0002] With the development of light source technology, laser, as a brand new light source, has gradually entered the automobile market. Due to the high brightness of laser and the good collimation performance of laser light source itself, it is popular in the market. At present, lasers are used as light sources to make high beams and auxiliary high beam lamps appear on the market. However, the use of laser as a special light source requires extra attention. According to the description of national regulations, Class 3B and Class 4 lasers may cause permanent damage to human eyes. Improper use will cause harm to pedestrians and oncoming drivers . [0003] Such as figure 1 , when the high-energy beam generated by the external force or the laser breaks and breaks down t...

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
IPC IPC(8): F21S41/16F21S41/176F21S41/20F21V13/14
Inventor 张洁
Owner HASCO VISION TECHNOLOGY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap