Unlock instant, AI-driven research and patent intelligence for your innovation.

Optical light-homogenizing sheet

A dodging film and optical technology, applied in optics, optical components, nonlinear optics, etc., can solve the problems of high cost, complex structure, unsuitable for mass production, etc., achieve low cost, increase brightness, and improve picture quality Effect

Active Publication Date: 2015-12-30
HANGZHOU HONGSHI TECH
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is complex in structure and high in cost, and is not suitable for mass production.

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
  • Optical light-homogenizing sheet
  • Optical light-homogenizing sheet
  • Optical light-homogenizing sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] As an embodiment of the present invention, such as figure 1 As shown, the structure, function and realization of the above-mentioned components in the dodging sheet will be described respectively below.

[0033] In this embodiment, the host material 11 of the dodging sheet is KTiOPO 4 The crystal has a thickness of 1 mm and can be cut arbitrarily according to needs. A plurality of ferroelectric domain structures 12 are formed in the matrix in the form of a regular hexagon with a side length of 5 μm and a center-to-center spacing of 15 μm. The thickness of each ferroelectric domain can run through the entire crystal thickness direction, and can also be formed on the incident light side or the outgoing light side of the crystal, with a thickness of at least 100 μm. The preparation method of uniform light sheet is as follows:

[0034] Clean the substrate;

[0035] Prepare a mask plate; vapor-deposit a uniform metal electrode on the front of the substrate, and use the s...

Embodiment 2

[0041] As an embodiment of the present invention, such as figure 2 As shown, the structure, function and realization of the above-mentioned components in the dodging sheet will be described respectively below.

[0042] In this embodiment, the host material 21 of the dodging sheet is LiTaO doped with 5mol% MgO 3 The crystal has a thickness of 0.5 mm and can be cut arbitrarily according to needs. A plurality of ferroelectric domains 22 are randomly arranged in the matrix material in any shape, and the area of ​​each ferroelectric domain perpendicular to the thickness direction is within 1 μm 2 to 100μm 2 Between them, they can run through the entire crystal thickness direction, and can also be formed on the incident light side or the outgoing light side of the crystal, with a thickness of at least 100 μm. . The preparation method of this dodging sheet is as follows:

[0043] Clean the substrate;

[0044] Prepare a mask;

[0045] Evaporate a uniform metal electrode on the...

Embodiment 3

[0050] As an embodiment of the present invention, such as image 3 As shown, the structure, function and realization of the above-mentioned components in the dodging sheet will be described respectively below.

[0051] In this embodiment, the host material 31 is LiNbO doped with 5mol% MgO 3The crystal has a thickness of 2 mm and can be cut arbitrarily according to needs. The plurality of photorefractive regions 32 are circular with a radius of 3.5 μm and arranged in any manner. The thickness of each photorefractive region can run through the entire crystal thickness direction, and can also be formed on the incident light side or the light outgoing side of the crystal, with a thickness of at least 100 μm. The preparation method of uniform light sheet is as follows:

[0052] Clean the substrate;

[0053] Prepare a mask;

[0054] A high-power 355nm ultraviolet laser is used to irradiate the substrate through the mask, so that the irradiated area produces multiple photorefrac...

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
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an optical light-homogenizing sheet, and belongs to the field of optics. The matrix material of the optical light-homogenizing sheet can be a ferroelectric crystal such as lithium niobate, lithium tantalite, potassium titanium phosphate and barium titanate and can also be a ferroelectric film material such as a lithium niobate film, a lithium tantalite film and a barium titanate film growing on a substrate. An extra electric field or ultraviolet irradiation or chemical diffusion is adopted for forming a large number of ordered or unordered nano ferroelectric domains on the surface of the crystal or the film, or light refraction is performed for making light scattering when the light passes through the crystal, so that a light-homogenizing effect is achieved. According to the embodiment, the large-scale and high-speed light-homogenizing sheet is prepared, is especially suitable for being used in the fields of laser display and laser lighting and has the advantage of low cost.

Description

technical field [0001] The invention relates to the fields of optics and materials, in particular to an optical homogenizing sheet. Background technique [0002] Due to its high brightness and good divergence angle, lasers have important applications in many aspects such as laser display and laser lighting. However, since the laser power generally has a Gaussian distribution, in most cases, in order to increase the brightness, multiple lasers need to be coupled out, so the obtained light field is not uniform. In order to obtain a uniform light field, it is often necessary to design a complex optical system, or use a microlens array and other methods. This method has complex structure and high cost, and is not suitable for mass production. Contents of the invention [0003] In order to overcome the defects of the prior art, the invention provides an optical homogeneous sheet with simple preparation and low cost. [0004] According to one aspect of the present 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): G02F1/00G02B5/02G02B1/10
CPCG02B1/10G02B5/0236G02F1/0027
Inventor 王东周毕勇高伟男王栋栋孙敏远张文平
Owner HANGZHOU HONGSHI TECH
Features
  • R&D
  • 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