Supercharge Your Innovation With Domain-Expert AI Agents!

Dimming sheet and preparation method thereof

A dimming sheet and dimming technology, used in optics, optical components, instruments, etc., can solve the problem of controlling high-purity bulk scattered light without emphasizing surface scattering interference, without scattering control, and unaware of high-purity bulk scattering Control method advantages and other issues, to achieve the effect of smooth distribution curve, soft light intensity change, and smooth transition

Pending Publication Date: 2020-07-21
NINGBO EXCITON TECH
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of optics does not have scattering controllability
[0006] (4) Conventional volume scattering coatings, in the existing technical solutions, do not emphasize the control of surface scattering interference to obtain high-purity volume scattering light, and also Unaware of the advantages of high-purity volume-scattering control methods

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
  • Dimming sheet and preparation method thereof
  • Dimming sheet and preparation method thereof
  • Dimming sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0195] Such as Figure 13 As shown, the dimming sheet provided by the present invention includes a dimming layer 1 and a base 0. The dimming layer 1 is placed on one surface of the base 0. The thickness H of the base is 0.05 mm. The base includes a light-incident surface 001 and a light-emitting surface 002. The thickness T of the light-adjusting layer is 50 μm. The light-adjusting layer includes a propagation medium 1A and a light-scattering agent 1B, a light incident surface 101, and a light-emitting surface 102. The light-scattering agent 1B is uniformly dispersed in the propagation medium 1A to form a volume scattering system. Input The light 01 is emitted from the light-emitting surface 00 of the input light source, passes through the light-incident surface 001 and the light-exit surface 002 of the substrate in turn, and then enters from the light-incidence surface 101 of the light-adjusting layer, and is controlled by the volume scattering of the light-adjusting layer. 1...

Embodiment 2

[0197] For the dimming film provided in Example 1, the filling rate D' is 0.2, and the shape of the output light 02 is approximately egg-shaped, such as Figure 11c Shown in curve 083 / triangular as Figure 12c As shown in the middle curve 083, the beam angle Φ 2 =90°.

Embodiment 3-15

[0199] For the dimmer provided in Example 1, the thickness H of the substrate is 0.15 mm, the roughness Ra of the light incident surface 001 and the light exit surface 002 of the substrate is Ra<0.05 μm, the substrate is a glass substrate, and the material 0A is silicate glass , and the other parameters are listed in Table 3.

[0200] In fact, for the same control method of input light and output light, the combination of the propagation medium and the light scattering agent in the dispersion is not limited to the above-mentioned embodiments, and can be made according to the optical properties (refractive coefficient, extinction coefficient) of the propagation medium and the light scattering agent. Various changes, such as corresponding changes in coating thickness, filling rate, particle size distribution, etc. For the same embodiment, the control combination of input light and output light is not limited to the above embodiment, and different control combinations will be obt...

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
Surface roughnessaaaaaaaaaa
Thicknessaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a dimming sheet based on volume scattering, in particular to a dimming sheet based on high-purity volume scattering and a preparation method thereof. In order to realize regulation and control of input light, the invention provides a dimming sheet and a preparation method thereof. The dimming sheet is composed of a dimming layer and a substrate. The dimming layer is arranged on the substrate. The dimming layer is composed of a propagation medium and a light scattering agent, wherein the propagation medium is solid polymer resin, and the light scattering agent is lightscattering particles. The light scattering agent is strictly dispersed in the propagation medium, and regulation and control light scattered by the dimming sheet body is increased. The upper outer surface, the lower outer surface and interfaces of all layers of the dimming sheet are very flat and smooth, and stray light scattered by the surfaces of all layers of the dimming sheet is reduced. The dimming sheet can perform specific regulation and control on output light, so that transmitted output light meets a specific distribution form, and the output light is more suitable for human eyes andlenses to watch, is more suitable for being used as a new input light source for secondary utilization, and is particularly suitable for being used as a signal source of an optical system for reception and analysis.

Description

technical field [0001] The invention relates to a volume-scattering-based dimming sheet, in particular to a high-purity volume-scattering-based dimming sheet and a preparation method thereof. Background technique [0002] Traditional optical films have specific optical coatings, but none of them can produce high-purity volume scattering, such as: [0003] (1) Diffusion particle layer, using light to generate multiple refractions and reflections on the surface and interior of the diffusion particles to produce diffusion on a geometrical optical scale, using the geometric shape of the diffusion particles exposed above the glue layer to generate sufficient refractive index difference with the air to expand The optical bending range strengthens the diffusion effect, such as diffusion, atomization, anti-glare and so on. This kind of optical coating has a certain volume scattering because the particles are partially buried in the glue layer, but has strong surface scattering. ...

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): G02B5/02
CPCG02B5/0226G02B5/0268
Inventor 李刚夏寅刘志鹏付坤薛永富唐海江张彦
Owner NINGBO EXCITON 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