Projection light gathering screen

A condensing screen and projection technology, which is applied in the field of projection concentrating screens, can solve the problems of dim images, no light resistance on the projection screen, and inability to see the images clearly. high effect

Pending Publication Date: 2017-11-07
董文晋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because, if the projection equipment is in the daytime or when the light is strong, the external light source will have a great influence on the projected image, and even the projected image cannot be seen clearly.
However, the existing projection screens do not have anti-light performance. Under normal working conditions, the projected image will be weakened with the external light source (also called gain reduction). The stronger the external light, the larger the projected image will be. dimmer

Method used

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations of the present invention, and those of ordinary skill in the art based on the functions, methods, or structural changes made by these implementations Equivalent transformations or substitutions all fall within the protection scope of the present invention.

[0019] Such as figure 1 As shown, the projection focusing screen of the present invention includes: a screen main body and a frame 4 located around the screen main body.

[0020] The screen main body has a layered structure, which includes: a condensing plate 1, a polarizing film 2, and a frosted film 3, wherein the condensing plate 1, polarizing film 2, and frosted film 3 are stacked, and the polarizing film 2 is located on the Between the concentrating plate 1 and the frosted film 3 .

[0021] Such as figure 2 As shown, spec...

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Abstract

The invention provides a projection light gathering screen, which comprises a screen main body and a border located around the screen main body, wherein the screen main body comprises a light gathering plate, a polarizing film and a sand milling film; the light gathering plate, the polarizing film and the sand milling film are arranged in a stacked mode; the polarizing film is located between the light gathering plate and the sand milling film; the light gathering plate is made of aluminum and has a light gathering surface, the light gathering surface is provided with a uniformly-arranged light gathering structure, and the light gathering structure and the light gathering material are integrally formed. According to the projection light gathering screen of the invention, through arranging the light gathering structure on the aluminum material, the projection effects are excellent, good anti-light effects are achieved, the imaging definition is ensured, and use by a projection device is facilitated. Besides, the projection light gathering screen also has advantages of aging resistance, high definition, not easy damage and long service life.

Description

technical field [0001] The invention relates to a projection focusing screen, in particular to a projection focusing screen with clear imaging. Background technique [0002] At present, the projection screen is used for projection and imaging. In order to obtain a relatively clear projection image, the light intensity of the environment should be controlled. Because, if the projection equipment is in the daytime or when the light is strong, the external light source will have a great influence on the projected image, and even the projected image cannot be seen clearly. However, the existing projection screens do not have anti-light performance. Under normal working conditions, the projected image will be weakened with the external light source (also called gain reduction). The stronger the external light, the larger the projected image will be. dimmer. [0003] Therefore, in view of the above problems, it is necessary to propose a further solution. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/604G03B21/60
CPCG03B21/60G03B21/604
Inventor 董文晋
Owner 董文晋
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