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Portable projection cloth screen device

A portable and projection technology, which is applied in projection devices, optics, instruments, etc., can solve the problems of miniature projectors’ advantages and reduced convenience, and achieve the effect of improving projection quality, maintaining flatness, and avoiding excessive slack

Inactive Publication Date: 2012-12-05
ACER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the user's environment does not have a suitable projection surface for the micro-projector to utilize, the advantages and convenience of the micro-projector being available everywhere will be reduced.

Method used

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  • Portable projection cloth screen device
  • Portable projection cloth screen device
  • Portable projection cloth screen device

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] figure 1 It is a perspective view of a portable projection screen device according to an embodiment of the present invention. figure 2 for figure 1 An exploded perspective view of the portable projection screen device of . Please refer to figure 1 and figure 2 , the portable projection screen device 100 of this embodiment includes a first board 110 , a second board 120 and a screen 130 . The second board body 120 is connected to the first board body 110 and is suitable for unfolding or closing on the first board body 110 . Two ends of the curtain 130 are respectively fixed on the first board body 110 and the second board body 120 . When the second plate body 120 is as figure 1 When the first board body 110 is closed as shown, the curtain 130 is folded between the first board body 110 and the second board body 120 . When the second board body 120 is as figure 2 When unfolded on the first board 110 as shown, the curtain 130 is unfolded to provide a projection s...

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Abstract

The invention relates to a portable projection cloth screen device which comprises a first plate body, a first bent part, a second plate body, a second bent part and a cloth screen. The first and second bent parts are connected mutually and are respectively connected to the first and second plate bodies in a detachable mode, so that the first and second plate bodies are suitable to oppositely expand or close; and the relative positions of the first bent part and the second bent part are kept unchanged. One end of the cloth screen is fixed at a first position of the first plate body and the other end of the cloth screen is fixed at a second position of the second plate body. When the second plate body is closed to the first plate body, the cloth screen is folded between the first plate body and the second plate body. When the second plate body is expanded to the first plate body, the distance between the first position and the second position is suitable to increase by the relative bending of the first plate body, the first bent part, the second bent part and the second plate body so as to spread out the cloth screen to provide a projection surface.

Description

technical field [0001] The invention relates to a projection screen device, in particular to a portable projection screen device. Background technique [0002] A projection device is a display device for producing large-scale images. The imaging principle of the projection device is to convert the illumination beam generated by the light source into an image beam through a light valve, and then project the image beam onto a screen through a lens to form an image. With the advancement of projection technology and the reduction of manufacturing costs, the use of projection devices has gradually expanded from commercial use to home use. With the development trend of all kinds of electronic products towards high speed, high performance, light weight and short size, pico projector has gradually become the mainstream of personal digital market in the future. [0003] The miniature projector has a small volume, so that the user is easy to carry and can use it to project pictures ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/58
Inventor 阎立陈信宇
Owner ACER INC
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