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Opto-mechanical adjustment system and method

An adjustment system and adjustment method technology, applied in the field of projection, can solve the problems of being unable to accurately judge whether the center of the three RGB spots coincides with the center of the effective picture, asymmetrical adjustment margin, poor edge leakage, etc.

Active Publication Date: 2021-02-02
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing 3LCD optical machine adjustment, the center of each RGB monochrome spot is adjusted to coincide with the center of the effective picture, so that even if the deformation is unpredictable after being installed in the whole machine, the adjustment margin of up, down, left, and right will be relatively Reasonable and symmetrical, the edge leakage and optical-mechanical efficiency of the whole machine are under control
[0004] However, to judge whether the RGB monochromatic spots overlap, the traditional method can only be judged by the edge overlap. Since the edge imaging and uniformity of each monochromatic spot are not as good as the center of the spot, poor imaging (virtual edge) at the edge of the spot will human error
Even if the judgment is based on the coincidence of the center of the light spot with the center of the effective picture, since the actual size of each RGB single-color light spot is larger than the effective picture, it is impossible to accurately judge whether the centers of the three RGB light spots coincide with the center of the effective picture during adjustment.
If it cannot be accurately adjusted to overlap, it will lead to asymmetrical adjustment margin, and there is a high risk of poor edge leakage after being installed in the whole machine

Method used

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  • Opto-mechanical adjustment system and method
  • Opto-mechanical adjustment system and method
  • Opto-mechanical adjustment system and method

Examples

Experimental program
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Effect test

no. 1 example

[0044] Please refer to figure 1 , this embodiment provides an optomechanical adjustment system, which includes a light source 101 , a preprocessing component, a beam splitting component, and a projection component, and the preprocessing component is arranged at a distance from the light source 101 .

[0045] In this embodiment, the light source 101 may be a light source capable of generating RGB three-color light. In order to explain the principle of this solution simply and clearly, in this embodiment, an RGB three-color 3LCD light engine is taken as an example for illustration. It can be understood that, in other implementation manners, the optical-mechanical adjustment system provided in this embodiment can also be used for adjustment of LCD optical-mechanical systems of other colors than RGB.

[0046] The preprocessing component includes a light absorbing array 102X, a light homogenizing unit, a polarizing unit 104 and a first condenser lens 105 arranged sequentially from...

no. 2 example

[0074] Please refer to Figure 11 , this embodiment provides an optical-mechanical adjustment method, which can be applied to the optical-mechanical adjustment system provided in the first embodiment above, and the optical-mechanical adjustment method includes:

[0075] Step S101: adjusting the first monochromatic light spot so that the first monochromatic light spot misses an edge on the effective display area;

[0076] Step S102: Adjusting the second monochromatic light spot so that the second dark area of ​​the second monochromatic light spot overlaps with the first dark area of ​​the first monochromatic light spot to form a first mixed light spot;

[0077] Step S103: adjusting the third monochromatic light spot so that the third dull area of ​​the third monochromatic light spot and the mixed dull area of ​​the first mixed light spot are symmetrical with respect to the effective display area;

[0078] Step S104: Adjusting the first mixed light spot and the third monochroma...

no. 3 example

[0083] Please refer to Figure 12 , this embodiment provides an optical-mechanical adjustment method, which can be applied to the optical-mechanical adjustment system provided in the first embodiment above, and the optical-mechanical adjustment method includes:

[0084] Step S201: adjusting the first monochromatic light spot so that the first dark area of ​​the first monochromatic light spot coincides with the center of the effective display area;

[0085] Step S202: adjusting the second monochromatic light spot so that the second dull area of ​​the second monochromatic light spot overlaps with the first dark area to form a first mixed light spot;

[0086] Step S203: Adjusting the third monochromatic light spot so that the third dull area of ​​the third monochromatic light spot coincides with the mixed dull area of ​​the first mixed light plate.

[0087] The biggest difference from the above-mentioned second embodiment is that in this embodiment, the first condenser lens 105 ...

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Abstract

A system and method for adjusting an optical machine, which relate to the technical field of projection. The system for adjusting the optical machine comprises: a light source (101); a pre-processing assembly that is arranged spaced apart from the light source (101), wherein the pre-processing assembly comprises a light absorbing array (102X), light homogenizing unit, polarization unit (104), and first condensing lens (105) that are sequentially arranged from the object side to the image side, wherein the light homogenizing unit is provided with a micro-lens array composed of a plurality of micro-lens units, the light absorbing array (102X) comprises a plurality of light absorbing regions that are disposed corresponding to the plurality of micro-lens units, and the centers of the light absorbing regions coincide with the centers of the corresponding micro-lens units on the micro-lens array; a light splitting assembly that is disposed at the image side of the first condensing lens (105); and a projection assembly that is disposed at the image side of the light splitting assembly, the projection assembly comprising a light combining unit (125) and a lens (126). The accuracy of adjusting a leaking edge of a 3LCD optical machine may effectively be improved, thus improving the yield rate and reducing costs.

Description

technical field [0001] The present invention relates to the field of projection technology, in particular to an optical-mechanical adjustment system and method. Background technique [0002] In the current 3LCD optical-mechanical system, the illumination spots incident on the RGB three-way LCD Panel are larger than the Panel itself. One reason is that the edges of the illumination spots are not sharp (with virtual edges) and cannot be used for imaging (the actual spot size minus the virtual edge). The size of the side is the effective spot); another reason is that when the optical machine is installed into the whole machine, unpredictable deformation may occur, causing the optical path to be skewed. If the lighting spot is as large as the Panel, it is prone to edge leakage. Therefore, when designing the optical path, the illumination spot incident on the RGB three-way Panel needs to be larger than the Panel itself. [0003] In the existing 3LCD optical machine adjustment, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/20G02B27/48
CPCG02B27/48G03B21/206G03B21/2073G03B21/208G03B21/20
Inventor 顾佳琦郭祖强李屹
Owner APPOTRONICS CORP LTD