Method for realizing homogenized control of light beam by utilizing free-form curved lens

A curved lens and light control technology, which is applied in the field of applied optics, can solve the problems of light beam control and complexity of uniform light system, and achieve the effect of limiting effect, good uniformity and easy processing

Active Publication Date: 2014-04-09
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: to overcome the complexity of the existing uniform light system and the problem that the light beam cannot be controlled, and to provide a new design method for uniform light control based on a free-form surface lens, which only uses one lens to realize Uniform light for any light source, light and make the exit spot any desired shape

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
  • Method for realizing homogenized control of light beam by utilizing free-form curved lens
  • Method for realizing homogenized control of light beam by utilizing free-form curved lens
  • Method for realizing homogenized control of light beam by utilizing free-form curved lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings.

[0034] A method for realizing uniform light beam control by using a free-form surface lens. The method includes the following steps:

[0035] Step 1: According to the provided light source data, determine that the light distribution function of the light source satisfies the Gaussian distribution, with a diameter of 10mm;

[0036] Step 2: Determine the target dodging area as required. This example is rectangular, length a=30mm, width b=16mm, and the distance between the light source and the target area h=10mm;

[0037] Step 3: Select the lens material as PMMA, the refractive index of this material is n=1.49;

[0038] Step 4: Divide the rectangular lighting area into a number of grids passing through the center of the rectang...

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 discloses a method for realizing homogenized control of a light beam by utilizing a free-form curved lens, and the method comprises the following steps of step 1, determining a light distribution form of a light source needing the homogenized control; step 2, determining position information of an area realizing the homogenized control; step 3, determining a lens material; step 4, dividing the homogenized controlled area into a plurality of subareas on the basis of energy conversation law; step 5, establishing a one-one correspondence relation between any subarea in step 4 and a light source emergent angle; and step 6, solving a surface shape of the free-form curved lens according to the refraction law and the correspondence relation in steps 4 and 5. Due to the adoption of the method, the light beam homogenized control of any light source is realized, and the light beam presents uniform light spots in any shape after passing through the curved lens.

Description

Technical field [0001] The invention relates to the technical field of applied optics, in particular to a method for realizing uniform light beam control by using a free-form surface lens. Background technique [0002] At present, most light source generating devices emit light sources that are non-uniform. For example, the light output by the laser meets the Gaussian distribution, and the light output by the LED meets the Lambertian distribution. However, in many cases, a light source with better uniformity is required, or The light emitted by the light source is controlled in a required specific shape area, which requires uniform light control of the light source to meet actual needs. [0003] There are several methods currently applied to uniform light control: (1) Microlens uniform light array. This method is mainly composed of a series of orthogonally distributed tiny lenses with a specific surface shape to form an array. After the beam passes through this array, the emitted ...

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): F21V5/04F21Y101/02F21Y115/10
Inventor 谢常青辛将朱效立刘明
Owner INST OF MICROELECTRONICS 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