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Interlayer dimming sheet and preparation method thereof

A kind of interlayer and dimming technology, applied in optics, optical components, instruments, etc., can solve the problem of controlling high-purity body scattered light without emphasizing surface scattering interference, not having scattering controllability, and not aware of high-purity body scattering control mode Advantages and other issues, to achieve the effect of reducing the proportion of stray light, smooth distribution curve, and soft light intensity changes

Inactive Publication Date: 2020-07-21
NINGBO EXCITON TECH
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  • 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

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  • Interlayer dimming sheet and preparation method thereof
  • Interlayer dimming sheet and preparation method thereof
  • Interlayer dimming sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0218] Such as Figure 15 As shown, the interlayer dimming sheet provided by the present invention includes a dimming layer 11, a first substrate 10 and a second substrate 20, the dimming layer 11 is placed between the first substrate and the second substrate, the first substrate and the second substrate The thickness H of the second substrate 1 and H 2 Both are 0.05mm, the first substrate includes a light incident surface 1001 and a light exit surface 1002, the second substrate includes a light incident surface 2001 and a light exit surface 2002, the thickness T of the dimming layer is 50 μm, and the dimming layer includes a propagation medium 11A and a light Scattering agent 11B, light-incident surface 1101, light-exit surface 1102, light-scattering agent 11B is uniformly dispersed in propagation medium 11A to form a volume scattering system, input light 01 is emitted from light-emitting surface 00 of the input light source, and passes through the incident light of the firs...

Embodiment 2

[0220] For the interlayer dimmer 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

[0222] For the sandwich dimming film provided in Example 1, the thickness H of the first base and the second base 1 and H 2 Both are 0.15mm, the roughness Ra of the light incident surface 1001, 2001, light exit surface 1002, 2002 of the substrate is less than 0.05μm, the first substrate and the second substrate are both glass substrates, and the material is silicate glass. Item parameters are listed in Table 3.

[0223] 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 lig...

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Abstract

The invention relates to an interlayer dimming sheet based on volume scattering, in particular to an interlayer 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 an interlayer dimming sheet and a preparation method thereof. The interlayer dimming sheet is composed of a dimming layer, a first substrate and a second substrate. The dimming layer is arranged between the first substrate and the second 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 light scattering particles. The light scattering agent is strictly dispersed in the propagation medium, and regulation and control light scattered by the interlayer dimming sheet body is increased. The upper outer surface, the lower outer surface and interfaces of all layers of the interlayer dimming sheet body are very flat and smooth, and stray light scattered by the surfaces of all layers of the interlayer dimming sheet body is reduced. The interlayer dimming sheet can perform specific regulation and control on the output light, so that the transmitted output light meets a specific distribution form, and the output light is more suitable for human eyes and lenses 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 an interlayer dimmer based on volume scattering, in particular to an interlayer dimmer based on high-purity volume scattering 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...

Claims

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Application Information

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IPC IPC(8): G02B5/02
CPCG02B5/0242G02B5/0257G02B5/0268
Inventor 李刚夏寅薛永富汪诚周鼎刘志鹏付坤唐海江张彦
Owner NINGBO EXCITON TECH
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