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Brightness automatic equalization device and method used in light recovery 3D projection system

A projection system and automatic equalization technology, applied in the field of optical instruments, can solve problems such as fluctuation of the output brightness of the projector and poor projection quality, and achieve the effect of improving user experience and satisfying quality.

Active Publication Date: 2016-01-06
雷欧尼斯(北京)信息技术有限公司
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Problems solved by technology

[0005] In view of this, the technical problem to be solved by this application is to provide an automatic brightness equalization device and method used in a light recycling 3D projection system to solve the large fluctuations in the output brightness of projectors (projectors) in the prior art, resulting in projection poor quality problem

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  • Brightness automatic equalization device and method used in light recovery 3D projection system

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the spirit of the disclosure of the present invention will be clearly described below with the accompanying drawings and detailed descriptions. Any person skilled in the art will understand the embodiments of the present invention. , when it can be changed and modified by the technology taught in the content of the present invention, it does not depart from the spirit and scope of the content of the present invention.

[0025] The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention. In addition, elements / members with the same or similar numbers used in the drawings and embodiments are used to represent the same or similar parts.

[0026] As used herein, "first", "second", ... etc. do not refer to a particular sequence or order, nor are they used to limit the pre...

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Abstract

The invention provides a brightness automatic equalization device and method used in a light recovery 3D projection system. The brightness automatic equalization device includes: a brightness detector arranged between a projector and a projection screen and used for detecting brightness between the projector and the projection screen and generating a detection signal; and a controller electrically connected with the brightness detector and used for adjusting output brightness of the projector according to the detection signal. The brightness automatic equalization device used in the light recovery 3D projection system can prevent the output brightness of the projector from large fluctuation, thereby satisfying the specified projection quality.

Description

technical field [0001] The present invention relates to the technical field of optical instruments, in particular to a three-dimensional (3D) projection display device, in particular to an automatic brightness equalization device and method used in a light recycling 3D projection system. Background technique [0002] At present, the light recycling 3D device can be directly placed in a projector (projector). Through the light recycling 3D device, the projector can directly output polarized light. After the polarized light passes through the light recycling 3D device, the brightness of visible light on the screen can be increased to that before polarization. 90% of that, thereby improving the light efficiency (light output efficiency), and the light recycling 3D device can support the use of two 3D systems: a single polarized 3D system and a dual polarized 3D system. [0003] However, since the existing light recycling 3D device only passively improves the output light effect...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G02B27/22
CPCG02B30/00G03B21/2053
Inventor 马士超
Owner 雷欧尼斯(北京)信息技术有限公司
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