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inflatable projection screen

A projection screen and screen technology, which is applied to instruments, projection devices, optics, etc., can solve problems such as inability to see patterns clearly, and achieve the effects of easy inflatable operation, less impact on the projection effect, and less depression.

Active Publication Date: 2019-06-14
江苏吉祥星智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Taking the existing projection screen as an example, since the projection screen naturally hangs down and the surface is flat, due to the existence of diffuse reflection, users on the left and right sides of the projection screen often cannot clearly see the pattern on the other side

Method used

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Examples

Experimental program
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Embodiment 1

[0027] see figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 , an inflatable projection screen, comprising a hanging tube 5, the center of the hanging tube 5 is provided with a screen rotating shaft 9 driven and connected to the control motor 2, and a screen cloth 6 is wound on the screen rotating shaft 9, and the screen cloth 6 is An inflatable valve 3 is provided, the screen cloth 6 is a double-layer cloth structure, and the double-layer cloth is an inflatable cavity, and the double-layer cloth is connected by an elastic strip 10 so that the surface of the screen cloth 6 is vertically inward when inflated sunken.

[0028] In the present invention, when not in use, the screen cloth 6 is wound on the screen rotating shaft 9 and is placed in the hanging tube 5 . When it needs to be used, the control motor 2 drives the screen rotating shaft 9 to rotate, and the screen cloth 6 is put down. After the screen cloth 6 was put down, the inflation valve 3 was inflated. B...

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Abstract

The invention belongs to the field of projection equipment and discloses an inflatable projection screen comprising a hanging cylinder provided with a screen rotating shaft at the center and in driven connection to a control motor. A screen curtain is wound around the screen rotating shaft. An inflation valve is disposed on the screen curtain. The screen curtain is a double-layer structure. An inflation chamber is arranged between the double layers. The double layers are connected via an elastic strip so that the surface of the screen curtain is recessed inwards in the vertical direction when the projection screen is inflated. The inflatable projection screen helps users at either the left side or the right side of the projection screen clearly see a clear pattern on the other side.

Description

technical field [0001] The invention relates to the field of projection devices, in particular to an inflatable projection screen. Background technique [0002] With the development of projection technology, projectors and projection screens associated with them have been widely used in families and society. By projecting images on the projection screen through the projector, the meeting can be explained without writing on the blackboard, which is convenient for daily meetings. [0003] Taking the existing projection screen as an example, since the projection screen naturally hangs down and the surface is flat, users located on the left and right sides of the projection screen often cannot clearly see the pattern on the other side due to the existence of diffuse reflection. Contents of the invention [0004] The object of the present invention is to provide an inflatable projection screen to overcome the above-mentioned defects in the prior art. The present invention hel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/585
CPCG03B21/585
Inventor 魏霁烁柏雅惠
Owner 江苏吉祥星智能科技有限公司
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