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Variable-spacing anti-light curtain and preparation method thereof

A variable pitch and curtain technology, applied in optics, instruments, projection devices, etc., can solve the problem that the reflective surface cannot fully function, and achieve the effects of saving raw materials, improving production efficiency, and reducing manufacturing costs

Pending Publication Date: 2019-04-16
江苏慧智新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, in view of the technical problem that the reflective surface cannot fully function when the prisms of the prism structure of the reflective screen are arranged at equal intervals in the prior art, the purpose of the present invention is to provide a variable-pitch anti-light curtain. , the reflective surfaces of the prisms in each area can fully function

Method used

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  • Variable-spacing anti-light curtain and preparation method thereof
  • Variable-spacing anti-light curtain and preparation method thereof
  • Variable-spacing anti-light curtain and preparation method thereof

Examples

Experimental program
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Embodiment 1～6

[0064] Figure 4 A schematic side view of a partial structure of the variable-pitch anti-light curtains of preferred embodiments 1 to 6 of the present invention is shown. The light-absorbing surface of the prismatic structure layer 2 is coated with a light-absorbing coating 22 . Table 1 shows the relevant parameters of the variable-pitch anti-light curtains of Examples 1-6.

[0065] The relevant parameters of the anti-light curtain of table 1 embodiment 1~6

[0066]

[0067]

[0068] The preparation process of the variable-pitch anti-light curtain of Embodiment 1 to 6 of the present invention is as follows: Figure 5 As shown, the steps are as follows:

[0069] a) Manufacture the prismatic structure layer through hard mold and soft film technology: apply UV resin on the front of the substrate, and use a mold roller with a striped microstructure on the surface for rolling. During the rolling process, UV curing molding technology is used to coat the substrate. The UV re...

Embodiment 7～8

[0086] Image 6 Shows the local structural schematic diagram of the variable-pitch anti-light curtain of preferred embodiments 7 to 8 of the present invention, the light-absorbing surface of the prismatic structure layer 2 is made into a light-absorbing roughened microstructure 23, and the prismatic structure layer 2 is also uniform Black particles 24 are distributed, and the back of the substrate layer 1 is coated with a black light-absorbing layer 3 .

[0087] The surface roughness Rz value of the light-absorbing surface of the prismatic structure layer 2 (the sum of the maximum peak height and the maximum valley depth of the roughness profile) is 1 μm˜7 μm. Roughened microstructure of the light-absorbing surface as the first light-absorbing mechanism, such as Figure 7As shown, it can effectively absorb the light from the environment. Even if no light-absorbing material is coated, it can also reduce the reflected light from the environment to avoid affecting the imaging li...

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Abstract

The invention discloses a variable-spacing anti-light curtain and a preparation method thereof. The variable-spacing anti-light curtain comprises a base material layer and a prismatic structure layerarranged on the outer surface of the base material layer, and is characterized in that a plurality of prisms which are parallel to one another in the horizontal direction and have triangular sectionsare arranged on the prismatic structure layer; the distances between the prisms are gradually increased from bottom to top; the upper side surfaces of the prisms are light absorption surfaces; and thelower side surfaces of the prisms are reflective surfaces and are coated with a reflective coating respectively. The distance of the prismatic structure layer in the longitudinal direction of the curtain is adjusted, the distance is gradually increased from bottom to top, the prisms below can be effectively prevented from shielding the prisms adjacent to the prisms above, and the reflecting surfaces of the prisms can completely play a role. According to the structural design, raw materials of the prismatic structure layer are saved, the manufacturing cost is reduced, on the premise that the same reflection area is maintained, the light absorption area is increased, the absorption rate of ambient light is additionally increased, interference of the ambient light is reduced, and the contrast ratio is increased.

Description

technical field [0001] The invention belongs to the technical field of anti-light curtains, and in particular relates to a variable-pitch anti-light curtain and a preparation method thereof. Background technique [0002] Patent US7262911B2 discloses a reflective screen (also known as an anti-light curtain) for reflecting imaging light projected from a projector at an angle relative to the viewer to a direction substantially perpendicular to the reflective screen, i.e. viewing the front of the person. The reflective screen includes a substrate having a sawtooth appearance, and a light absorbing layer on one edge of each sawtooth of the substrate. The basic structure of the existing reflective screen is roughly the same, that is, there is a sawtooth appearance on the surface of the base, and the sawtooth forms a linear and equidistant prism structure. [0003] Conventional anti-light curtains, the prisms on the surface are equally spaced, when used with a laser projector, su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/60
CPCG03B21/60
Inventor 周永南
Owner 江苏慧智新材料科技有限公司
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