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Screen capable of eliminating laser speckles by vibration

A laser speckle and vibration elimination technology, applied in optics, optical components, image communication, etc., can solve the problems of high noise, inconvenient installation and debugging, etc., and achieve the effect of easy installation and debugging, elimination of laser speckle, and low noise

Inactive Publication Date: 2019-10-25
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a screen for eliminating laser speckle through vibration to solve the problems of high noise and inconvenient installation and debugging of the existing technology based on vibration screen to eliminate laser speckle

Method used

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  • Screen capable of eliminating laser speckles by vibration
  • Screen capable of eliminating laser speckles by vibration

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Embodiment

[0034] The technical scheme of the present invention is illustrated in detail below.

[0035] In this example, the screen that eliminates laser speckle by vibration, such as figure 1 and figure 2 As shown, it includes a screen frame 1, a rigid display surface component 2, a guide rail mechanism 1 31, a guide rail mechanism 2 32, an actuating component 4 and an elastic body 5, wherein the rigid display surface component 2 is composed of an optical display film layer 21 and a rigid support backplane 22 composite.

[0036] The screen frame 1 adopts a slotted design, the rigid display surface part 2 is located in the screen frame 1, the actuation part 4 is respectively connected with the screen frame 1 and the rigid support backplane 22, and the actuation part 4 is located on the back side of the rigid display surface part , which is located on one side of the rigid support backplane 22 . The upper back of the rigid support backplane 22 is connected to the groove of the screen...

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Abstract

The invention relates to a laser display technology, and solves the problems of high noise and inconvenient installation and debugging of the existing technology for eliminating laser speckles based on screen vibration. The technical scheme is summarized as follows: the screen capable of eliminating laser speckles by vibration comprises a screen frame, a rigid display surface component, an actuating component and at least one guide rail mechanism; the rigid display surface component is positioned in the screen frame, the rigid display surface component is connected with the screen frame through the at least one guide rail mechanism, and the rigid display surface component can move in a reciprocating manner in the screen frame along the guide rail direction; and the actuating component is connected with the screen frame and the rigid display surface component and is used for providing power for the rigid display surface component to move in the screen frame in the reciprocating manner.The beneficial effect is that the screen has low noise in vibration and is convenient to install and debug.

Description

technical field [0001] The invention relates to laser display technology, in particular to laser speckle elimination technology. Background technique [0002] In the laser display, due to the high coherence of the laser, when the laser is incident on the rough surface of the screen, the reflected light rays on the micro-surface at different references will interfere irregularly in the space, forming an irregular pattern near the surface of the screen. The light and dark spots, that is, laser speckle, can be visually detected and seriously affect the picture quality, especially in two-color and three-color laser display systems. [0003] In order to eliminate laser speckle, most of the existing technologies based on vibrating the screen to eliminate laser speckle use mechanical force or electromagnetic force to vibrate the screen frame, so that the whole screen vibrates, but this method is not only noisy, but also due to The entire screen frame needs to vibrate, and its inst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/56G02B27/48H04N5/64H04N9/31
CPCG02B27/48G03B21/562H04N5/64H04N9/3161
Inventor 李志翔赵海龙岳定飞张兵王红
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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