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Upper polaroid precise adjusting device used for detecting LCD

A precision adjustment and polarizer technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as polarizer looseness, no adjustment scale, polarizer rotation, etc., and achieve precise positioning, convenient operation, and high work efficiency.

Pending Publication Date: 2017-02-22
BEIJING C&W ELECTRONICS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the adjustment of the polarizer in the market, there is no adjustment scale, so it is difficult to adjust. In addition, the vibration of the machine causes the polarizer to loosen, causing the adjusted polarizer to rotate.

Method used

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  • Upper polaroid precise adjusting device used for detecting LCD
  • Upper polaroid precise adjusting device used for detecting LCD
  • Upper polaroid precise adjusting device used for detecting LCD

Examples

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Embodiment Construction

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0022] like Figure 1 to Figure 3 As shown, a polarizer precision adjustment device for LCD detection, including a first polarizer bracket 1, a second polarizer bracket 2, a polarizer 3 and a locking screw 4, the first polarizer bracket 1 and the second polarizer The brackets 2 are ring-shaped, the first polarizer bracket 1 is fixedly connected with the lens, the second polarizer bracket 2 is sleeved in the first polarizer bracket 1, and can rotate around the axis, the lower end of the second polarizer bracket 2 Stretch out of the first polarizer bracket 1, and the outer circumference side is provided with scales 5 equally distributed and evenly distributed, the polarizer 3 is horizontally arranged in the second pol...

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PUM

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Abstract

The invention relates to an upper polaroid precise adjusting device used for detecting an LCD. The adjusting device comprises a first polaroid support, a second polaroid support, a polaroid and a locking screw, wherein the first polaroid support and the second polaroid support are all in ring shapes, the first polaroid support is fixedly connected with a camera lens, the second polaroid support is arranged in the first polaroid support in a sleeved mode, and can rotates around an axis, the lower end of the second polaroid support stretches out of the first polaroid support, scales which are equally distributed are arranged on the side of the external circumference, the polaroid is crosswise arranged in the second polaroid support, and the first polaroid support and the second polaroid support are locked and fixed through the locking screw. The upper polaroid precise adjusting device used for detecting LCD has the advantages that the adjusting device can record a fine tuning angle of the polaroid, can be used for locking, is precise in location and high in working efficiency.

Description

technical field [0001] The invention relates to the field of imaging detection of mechanical automatic visual liquid crystal display screens, in particular to a precision adjustment device for polarizers for LCD detection. Background technique [0002] A single piece of polarizer looks little different from ordinary glass lenses and is transparent, but its function is to only transmit light vibrating in a certain direction in the light vibrating in all directions of 360°, and to transmit light vibrating along a certain direction. For the light interception (absorption) of vibration in other directions, the direction (axis) through which light is transmitted is called the transmission axis, and the direction (axis) perpendicular to this is the absorption axis. The theoretical limit value of the transmittance of a single polarizer is 50% , the ideal degree of polarization of a system of two polarizers whose transmission axes are perpendicular to each other is 100%. In the liq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13G02F1/1335
CPCG02F1/1309G02F1/133528
Inventor 王树雨吴垠杜春红许伟丽徐江伟
Owner BEIJING C&W ELECTRONICS GRP