Infrared laser lamp device for uniformly illuminating road surface

An infrared laser light, uniform lighting technology, applied in lighting devices, lighting device parts, lighting and heating equipment, etc., can solve the problems of uneven energy, affecting imaging quality, excessive brightness, etc. Simple, effect of reducing adjustment time

Inactive Publication Date: 2012-06-27
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires repeated adjustments on site. At the same time, the energy in the irradiation range is uneven, bright in the near

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
  • Infrared laser lamp device for uniformly illuminating road surface
  • Infrared laser lamp device for uniformly illuminating road surface
  • Infrared laser lamp device for uniformly illuminating road surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0011] like figure 1 Shown, a kind of infrared laser lamp device that is used for the uniform illumination of road surface, this device comprises: drive circuit board 3, fan 4 and mechanical encapsulation shell 5, it is characterized in that, this device comprises: semiconductor laser tube 1 and lens 2; The surface of the semiconductor laser tube 1 is attached with an optical fiber. After the light angle emitted by the semiconductor laser tube 1 is shaped by the optical fiber, the fast axis light is compressed to form a rectangular spot with a fast axis divergence angle of 10° and a slow axis divergence angle of 8°. After the lens 2 receives the rectangular light spot, it forms a light beam that is deflected downward and can uniformly illuminate the target surface, and evenly projects the light beam to the distant ground. The semiconductor la...

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

An infrared laser lamp device for uniformly illuminating a road surface belongs to the field of semiconductor illumination and comprises a driving circuit board, a fan, a mechanically packaged shell, a semiconductor laser tube and a lens. Optical fibers are adhered on the surface of the semiconductor laser tube, after the angle of light emitted from the semiconductor laser tube is shaped by the optical fibers, fast axis light is compressed to form a rectangular light spot, wherein a fast axis diffusion angle of the rectangular light spot is 10 degrees while a slow axis diffusion angle of the rectangular light spot is 8 degrees, and after receiving the rectangular light spot, the lens uniformly projects the light to the ground in the distance. The lens with a free curved surface distributes energy of laser light beams, is designed according to an energy corresponding mode, and can guarantee that the energy is uniform in a road surface illumination range under the condition that an illuminator is placed horizontally. The laser illuminator with a free curved surface is simple in adjustment process, and only needs to be placed horizontally, a downward pitching angle does not need to be adjusted, the light beams can naturally deflect downwards to illuminate the road surface, adjustment time is shortened, and installation cost is lowered.

Description

technical field [0001] The invention belongs to the field of semiconductor lighting, and relates to an infrared laser lamp device for uniform road surface illumination. Background technique [0002] With the improvement of the performance of semiconductor lasers, laser lighting technology based on semiconductor lasers is more and more widely used in the field of safety protection monitoring. Especially in some scenarios where the road surface is monitored within a certain distance, it is required to be able to uniformly and effectively illuminate the road surface that needs to be monitored, so as to detect abnormalities on the road surface in time, such as stones on the airport runway surface that affect the aircraft’s take-off and landing. Objects, etc. that interfere with the driving of the vehicle appear. [0003] At present, the commonly used method is to tilt the laser illuminator to the road surface at a certain angle, so that the light irradiates the road surface. H...

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): F21V5/04
Inventor 刘华卢振武辛迪
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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