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Sensor dimming sheet and preparation method thereof

A sensor and light adjustment technology, applied in optics, instruments, optical components, 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 methods Advantages and other issues

Inactive Publication Date: 2020-07-24
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
These are things that cannot be achieved with traditional diffusion membranes.

Method used

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  • Sensor dimming sheet and preparation method thereof
  • Sensor dimming sheet and preparation method thereof
  • Sensor dimming sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0192] 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 2-15

[0209] 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.

[0210] Table 3 Performance comparison of embodiments 2-15 under collimated input light

[0211]

[0212]

[0213] Notes 1 to 3 are the same as Table 2

[0214] Comparing Examples 2 to 5, 6 to 8, and 9 to 10, it can be seen that when other conditions remain unchanged and T increases, the volume scattering effect is strengthened, Φ 2 becomes larger, the output light gets closer and closer to the ideal Lambertian level. Comparing Examples 11 to 13, it can be seen that when other conditions remain unchanged and D' increases, the volume scattering effect is strengthened, and Φ 2 becomes larger, the output light gets closer and closer to the ideal La...

Embodiment 16-31

[0216] 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 4.

[0217] Table 4 Performance comparison of Examples 16-31 under different forms of input light in the normal direction

[0218]

[0219]

[0220]

[0221] Notes 1 to 3 are the same as Table 2

[0222] As shown in Table 4, comparing Examples 16 to 19, it can be seen that for a specific sensor light-adjusting layer, when the normal direction is collimated and incident (Example 16), the Φ of the output light 2 When it is less than 120°, the ideal Lambertian body level is not reached. At this time, with the input light Φ 1 becomes larger, the volume scattering effect will be further strengthened, Φ 2 becomes larger and closer to the ideal Lamberti...

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Abstract

The invention relates to a dimming sheet based on volume scattering, in particular to a sensor dimming sheet and a preparation method thereof. In order to regulate and control input light and enable output light to meet a Lambert reflector form, the invention provides the sensor dimming sheet and the preparation method thereof. The sensor dimming sheet comprises a dimming layer and a substrate, wherein the dimming layer is arranged on one surface of the substrate; the dimming layer and the substrate are each provided with a light incident surface and a light emergent surface; and a light scattering agent is contained in the dimming layer, the light scattering agent is arranged between the light incident surface and the light emergent surface of the dimming layer, and the filling rate D' ofthe light scattering agent in the dimming layer is 0.01-0.85. According to the dimming sheet, standardized regulation and control over the input light are realized, so that the output light meets theLambert reflector form, and the sensor application level is reached.

Description

technical field [0001] The invention relates to a light-adjusting sheet based on volume scattering, in particular to a sensor light-adjusting 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. [0004] (2)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02
CPCG02B5/0242G02B5/0268G02B5/0273G02B5/0278
Inventor 唐海江夏寅刘志鹏薛永富李兵军付坤王小凯李刚张彦
Owner NINGBO EXCITON TECH
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