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

Compact optical system and lenses for prodcuing uniform collimated light

A technology of optical system and lens, applied in the field of optical system

Inactive Publication Date: 2011-08-10
SIGNIFY HOLDING B V +1
View PDF6 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Many light source applications have space and exposure constraints

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
  • Compact optical system and lenses for prodcuing uniform collimated light
  • Compact optical system and lenses for prodcuing uniform collimated light
  • Compact optical system and lenses for prodcuing uniform collimated light

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] figure 1 A perspective view illustrating an optical system 100 that may be used with a compact light source, such as a light emitting diode (LED) 102 , in accordance with one embodiment of the present invention. It can be seen that the optical system 100 has a narrow aspect ratio, for example 3:1, but this can be changed as desired. figure 2 and 3 are respectively along the major axis 101 of the optical system 100 long and minor axis 101 short side view. Long axis 101 long and minor axis 101 short orthogonal to each other. The optical system 100 causes the light emitted from the light source to be distributed substantially uniformly throughout the exit window 106 of the optical system 100 and to be strictly collimated, ie directed in a direction substantially perpendicular to the plane of the exit window 106 . It is widely understood in the art that collimated light is not perfectly collimated, but may have some degree of angular spread.

[0011] like image 3...

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 optical system includes a cylindrical side emitter lens (110), a reflector (130) and a cylindrical Fresnel lens (150) to produce a substantially uniformly illuminated exit plane with well collimated light in the forward direction. The cylindrical side emitter lens (110) redirects light from a light source (102), such as a number of light emitting diodes (102) placed in a straight line, into side emitted light along an optical axis that is parallel with the exit plane. The reflector (130) may be a stepped multi-focal length reflector that includes multiple reflector surfaces with different focal lengths based on the surfaces distance to the light source and height to redirect light from the cylindrical side emitter lens (110) to illuminate the exit plane and collimate the light along one axis in the forward direction. The cylindrical Fresnel lens (150) is used to collimate the light along an orthogonal axis in the forward direction.

Description

technical field [0001] The present invention relates to optical systems and lenses for a compact light source that produces strictly collimated illumination, and in particular to a low-profile optical system with a narrow aspect ratio, the illumination throughout the exit face is strictly collimated and is average. Background technique [0002] Many light source applications have space and exposure constraints. Although small light sources such as light emitting diodes can be used for space saving purposes, these devices require additional optics to produce the desired illumination. For example, in some applications it may be desirable to provide a light source having tightly collimated light or illumination that is substantially uniform over an area. It would be desirable to provide an optical system and lens that can produce tightly collimated light from a uniformly illuminated surface area, but that does not require a large amount of space. Contents of the invention ...

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): F21S8/10F21V5/04
CPCF21Y2101/02Y10S362/80G02B3/00F21Y2103/003F21V13/04F21V5/045G02B19/0066G02B19/0028F21Y2103/10F21Y2115/10F21V5/008F21Y2101/00
Inventor P.J.H.布洛门E.N.H.J.斯塔萨
Owner SIGNIFY HOLDING B V
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com