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Ultra-short-throw laser projection display screen and ultra-short-throw laser projection equipment

A laser projection and display screen technology, applied in optics, instruments, projection devices, etc., can solve the problems of inconvenient handling and installation of projection display screens, and achieve the effects of suppressing ambient light interference, improving experience, and high contrast.

Active Publication Date: 2018-07-10
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an ultra-short-focus laser projection display screen and ultra-short-focus laser projection equipment, which solves the technical problem of inconvenient transportation and installation of the projection display screen matched with the existing ultra-short-focus laser projection equipment

Method used

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  • Ultra-short-throw laser projection display screen and ultra-short-throw laser projection equipment

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] The technical solutions provided by the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] Such as figure 2 As shown in the structural diagram, the ultra-short-focus laser projection display screen provided by the embodiment of the present invention includes a reflective layer 31; as image 3 As shown, the reflective layer is composed of a plurality of ...

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Abstract

An ultra-short focus laser projection display screen comprises a reflecting layer (31). The reflecting layer (31) is composed of a plurality of arc-shaped micro-convex structure units (302), each of which is arranged in sequence to form an upper semicircle pattern. The acute intersection angle between the tangent plane (311) of the surface of the micro-convex structure (301) which receives incident light and the reflecting layer (31) increases gradually from the center of the upper semicircle outward, such that the light emitted from an ultra-short focus lens is reflected to be parallel or substantially parallel light after being incident onto the reflecting layer (31). The projection display screen enables the incident light in a large angle range to be reflected to be parallel or substantially parallel light. The reflecting layer (31) can be formed on any installation plane by spraying. The transportation and the installation of the screen are both easy. A projection device comprising such an ultra-short focus laser projection display screen is further disclosed.

Description

technical field [0001] The invention relates to the field of laser projection display, in particular to an ultra-short-focus laser projection display screen used for ultra-short-focus laser equipment, and an ultra-short-focus laser projection device equipped with the ultra-short-focus laser projection display screen. Background technique [0002] The size of the picture projected by ordinary projection equipment is determined by the distance between the projection equipment and the projection display screen. The larger the distance, the larger the projected picture. The ultra-short-focus laser projection equipment has a small requirement for distance, and often only needs a projection distance of tens of centimeters to project a larger picture. It is also very convenient to install. It only needs to be placed in front of the projection display screen. Compared with ordinary projection equipment, it has the advantages of saving space and convenient installation. [0003] Spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/60G02B5/12
CPCG03B21/60G03B21/62
Inventor 王志煌
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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