Laser diffuser

A technology of laser diffusion and optical structure, which is applied in the field of diffusion sheets, can solve the problems of high manufacturing cost, expensive preparation cost, and bursting of holographic glass diffusion sheets, and achieve good application prospects and high transmittance.

Inactive Publication Date: 2016-05-25
杭州晶正光电科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Frosted glass diffusers, due to the inevitable subsurface scratches during processing, will cause damage or even bursting of the lens under the action of a strong laser, and cannot be used as a laser system
Holographic glass diffusers are expensive to prepare and only suitable for small format samples
Although the microlens array type glass diffuser has high transmittance, it is expensive to manufacture

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 diffuser
  • Laser diffuser
  • Laser diffuser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The laser diffusion sheet provided by the present invention will be further described below.

[0021] See figure 1 and figure 2 , The present invention provides a laser diffusion sheet, which includes a substrate, and the material of the substrate is glass. The base body includes a first surface and a second surface opposite to each other. An optical structure is formed on the first surface of the base body. The optical structure includes a plurality of closely arranged cellular microstructures, and the cellular microstructures are concave structures formed by inward depression of the first surface of the base body. Specifically, the depression depth of the middle position of the concave structure is deeper than that of its peripheral position, and the concave structure is similar to a concave structure formed after a sphere is pressed on soft mud. The tight arrangement means that the two adjacent cell-like microstructures are partially in contact to form a ridge, ...

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

PropertyMeasurementUnit
depthaaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a laser diffuser. The laser diffuser comprises a matrix made of glass, the matrix comprises a first surface and a second surface which are opposite to each other, an optical structure is formed on the first surface of the matrix, the optical structure comprises a plurality of cellular microstructures arranged closely, and the cellular microstructures are concave structures sunken inwards from the first surface of the matrix.

Description

technical field [0001] The invention relates to the technical field of diffusion sheets, in particular to a laser diffusion sheet. Background technique [0002] Diffusers are used to diffuse light and provide a uniform surface light source, so they are widely used in LED lighting and flat panel displays. Existing diffuser materials include resin materials (such as PET, PC, PMMA) and glass materials. The existing resin diffusion sheets have low transmittance, uncontrollable outgoing light field, and defects such as "hot spots", which cannot be applied to laser systems. Glass diffusers are divided into ground glass type, holographic type and microlens array type. Frosted glass type glass diffusers, due to the inevitable sub-surface scratches during processing, will cause damage or even burst of the lens under the action of strong laser, so they cannot be used as a laser system. Holographic glass diffusers are expensive to prepare and are only suitable for small-format sampl...

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 & AuthorityApplications(China)
IPC IPC(8): G02B5/02G02B1/11
CPCG02B1/11G02B5/0221G02B5/0278
Inventor吴雪原陈永福应佳伟
Owner杭州晶正光电科技有限公司