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Projection apparatus and brightness modulating method thereof

一种投影装置、亮度的技术，应用在放映装置、摄影、光学等方向，达到避免物理拼接缝产生、延长使用寿命的效果

Inactive Publication Date: 2015-09-02
CORETRONIC
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a projection device and its brightness adjustment method to solve the problems caused by the prior art
The light source module is used to emit the excitation beam along the beam delivery path

Method used

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  • Projection apparatus and brightness modulating method thereof
  • Projection apparatus and brightness modulating method thereof
  • Projection apparatus and brightness modulating method thereof

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Embodiment Construction

[0024] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only referring to the directions of the drawings. Accordingly, the directional terms are used to illustrate and not to limit the invention.

[0025] Please refer to Figure 1A , which shows a schematic diagram of a projection device 100 according to an embodiment of the present invention. Such as Figure 1A As shown, a projection device 100 includes a light source module 110 , a color wheel module 120 , a projection module 160 and a brightness adjustment device 130 . The projection device 100 can change the current intensity input to the light source module 110 through the brightness adjustment device 130 to maintain a constant brightness for ...

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Abstract

The invention provides a projector and a brightness adjusting method thereof. The projector includes a light source module, a color wheel module, a brightness adjusting device, and a brightness processing module. The light source module is used for emitting a light beam. The color wheel module is used for being excited to generate at least one color light beam by the light beam emitted from the light source module. The brightness adjusting device includes a light sensor and a brightness processing module, wherein the light sensor is disposed on a transmission path of a portion of the color light beam and the brightness processing module is electrically connected to the light sensor for adjusting the brightness value of the color light beam. The brightness adjusting method of projector is also provided.

Description

technical field [0001] The present invention relates to a display device, in particular to a projection device with adjustable brightness and a method for adjusting brightness. Background technique [0002] Existing large-scale projection screens are spliced ​​together by several projection devices to form large-scale projection screens arranged in a matrix. Therefore, multiple projection devices can play one spliced ​​large-screen image, or simultaneously play many identical images, or even play many different images. [0003] At present, the splicing technology of projection devices is widely used in the market where large-scale display screens need to display high-resolution audio-visual advertising content, such as: outdoor / indoor exhibition spaces, business exhibition venues, entertainment venues, conference centers or shop windows, etc. . However, since the brightness and color characteristics of each projection device are different, the color and brightness of the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14G03B21/20
CPCG03B21/2066G03B21/142G02B26/008G03B21/2053G03B21/204G03B33/08H04N2209/043
Inventor 洪晨修倪百男
Owner CORETRONIC
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