Method and equipment for protecting fluorescent color wheels

A fluorescent color wheel and equipment technology, applied in the field of projection, can solve the problems of fluorescent color wheel overheating, burning, retention, etc., and achieve the effect of preventing burning

Inactive Publication Date: 2013-08-07
WUHU AMT MICRO DISPLAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a method for protecting the fluorescent color wheel, which solves the problem of the energy of the laser beam staying on the fluorescent color wheel due to the slowing down or stopping of the fluorescent color wheel when the projector is turned on, turned off or in an abnormal state. The problem of overheating or burning the fluorescent color wheel due to concentration

Method used

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  • Method and equipment for protecting fluorescent color wheels
  • Method and equipment for protecting fluorescent color wheels
  • Method and equipment for protecting fluorescent color wheels

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

[0038] refer to figure 1 , figure 1 It is a flowchart of a method for protecting a fluorescent color wheel provided by an embodiment of the present invention. Such as figure 1 As shown, the method includes the following steps:

[0039] Step 101, collect the ...

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Abstract

The invention discloses a method and equipment for protecting fluorescent color wheels. The method includes: obtaining a rotating speed value, of a fluorescent color wheel, measured by a sensor, when the speed value is lower than a preset speed value, powering off a laser; when the speed value is larger than the preset speed value, powering on the laser; and when the speed value is zero, powering off the laser. By setting conditions of powering on and off of the laser, momentary overheat of the operating temperature of the color wheel can be prevented from influencing the service life of a luminescent material of the color wheel so as to prevent the color wheel from being burnt.

Description

technical field [0001] The invention belongs to the field of projection, and in particular relates to a method and equipment for protecting a fluorescent color wheel. Background technique [0002] The application of laser light sources in projection systems has become popular. The general application principle is that multiple blue laser beams are concentrated and projected onto the fluorescent color wheel, and red and green light are excited through the fluorescent color wheel. Through the rotation of the color wheel, a A white light source that mixes red, green, and blue time-sharingly. Due to the concentrated energy of the blue laser beam irradiated on the fluorescent color wheel, the energy of the beam is high, so that only when the color wheel is flying, the energy will not be concentrated on a point of the luminescent material and cause the color wheel to burn. Once the color wheel stops, The light still shines on the color wheel, and the color wheel burns out in an i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04G03B21/14
Inventor 唐文天
Owner WUHU AMT MICRO DISPLAY TECH
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