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Borderless ultra-short-throw optical hard screen

An ultra-short-focus, borderless technology, applied in optics, instruments, projection devices, etc., can solve the problems that it is difficult to ensure the accuracy of the light-absorbing surface layer and the reflective surface layer

Active Publication Date: 2021-02-19
深圳市三铭科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The reflective surface layer and the light-absorbing surface are arranged between the diffusion layer and the base layer, and it is difficult to ensure the accuracy of the light-absorbing surface layer and the light-reflecting surface layer during the molding process of the base layer or the diffusion layer

Method used

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  • Borderless ultra-short-throw optical hard screen
  • Borderless ultra-short-throw optical hard screen

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Embodiment Construction

[0020] A borderless ultra-short-focus optical hard screen, such as figure 1 As shown, the base layer 1, the aluminum substrate 2 with the reflective surface 22 and the light-absorbing surface 23, the diffusion layer 23, and the hard outer layer 4 are in sequence; the base layer 1 is made of aluminum alloy material, so that the base layer 1 has higher rigidity At the same time, the quality of the base layer 1 is also relatively light, and the base layer 1 and the aluminum substrate 2 are fixed to each other. As a preferred aluminum substrate 2 and the base layer 1, welding is adopted. Since both are aluminum alloys, the two are welded together. The stability is high; several concentric ring-shaped protrusions 21 with a triangular cross-section are arranged on the aluminum substrate 2; the upper surface of the ring-shaped protrusions 21 with a triangular cross-section is provided with a light-absorbing surface 23, and the light-absorbing surface 23 is coated The black coating co...

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Abstract

The invention discloses a frameless ultra-short-focus optical hard screen, which comprises a base layer arranged in sequence, the base layer is provided with a circular fan-shaped reflective surface and a light-absorbing surface connected to the reflective surface, and a diffusion layer and a light-absorbing surface are sequentially arranged outside the base layer. The hard outer layer, the diffusion layer is closely attached to the hard outer layer, the thickness of each position of the diffusion layer is the same, the thickness of each position of the hard outer layer is the same, the edge of the diffusion layer and the base layer A transparent sealing material is provided, and the sealing material, the base layer and the diffusion layer enclose to form a sealed cavity, which is convenient for controlling the angles of the reflective surface and the light-absorbing surface, and the cost is low.

Description

technical field [0001] The invention relates to the field of image display, more specifically, it relates to a frameless ultra-short-focus optical hard screen. Background technique [0002] Publication number is: CN204009335U Chinese invention patent discloses a kind of projection system of short projection distance forward projection optical screen, it is made up of forward projection screen and projector, and projector is arranged on one side of forward projection screen, described The forward projection screen includes a filter layer, a diffusion layer, a microprism array structure and a base layer, the diffusion layer is arranged on the side of the filter layer away from the projector, and the side of the diffusion layer away from the projector is provided with a microprism array structure, and the microprism The two sides of the prism array structure are respectively provided with an annular microprism array reflective surface layer and an annular microprism array light...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/60
CPCG03B21/60
Inventor 李剑铭
Owner 深圳市三铭科技有限公司