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Projection equipment

A technology of projection equipment and light source, applied in the field of projection display, can solve the problem of blue light damage to human eyes and other problems, and achieve the effect of reducing harm

Active Publication Date: 2019-06-14
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the blue light of the existing projection equipment causes damage to the human eye, the present invention provides a projection device that can improve the damage to the human eye caused by the blue light

Method used

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Embodiment Construction

[0032] see figure 1 , figure 1 is a schematic structural diagram of the projection device 100 according to the first embodiment of the present invention. The projection device 100 includes a light source device 110 , a wavelength conversion device 120 , a spatial light modulator 130 , and a lens 140 . The projection device 100 has two modes during operation, the first mode and the second mode. It can be understood that switching between the first mode and the second mode can be realized by the user operating a mechanical button or an interface operation menu displayed by the projection device 100 , which will not be described in detail here. Wherein, the first mode may be a normal mode, that is, a normal display mode, and the second mode is an eye protection mode, that is, a mode different from the normal mode and beneficial to human eye protection.

[0033] The light source device 110 is used for emitting light source light, the light source light includes first light and ...

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Abstract

The invention relates to projection equipment. The projection equipment has a first mode and a second mode, and the projection equipment includes a light source device, a wavelength conversion deviceand a spatial light modulator, wherein the light source device is configured to emit first light and second light, and the second light is blue light; the wavelength conversion device is configured toreceive the first light to generate excited light with the color different from the second light; and the spatial light modulator is configured to modulate the excited light and the second light or the converted light of the excited light and the second light according to image data to generate image light, and the converted light is blue light. The power ratio of the second light or the converted light to the excited light when the projection equipment is in the second mode is smaller than the power ratio of the second light or the converted light to the excited light when the projection equipment is in the first mode.

Description

technical field [0001] The present invention relates to the technical field of projection display, in particular to a projection device. Background technique [0002] According to research, the possible effects of blue light on the human eye are as follows: 1. Excessive blue light content will cause increased visual fatigue; 2. It will affect the physiological development of the eyes; There is an increased likelihood of macular degeneration in the human eye. In view of this, how to improve the damage of blue light to human eyes is an important topic in the field of projection display. As more and more attention is paid to the hazards of blue light today, countries have also begun to formulate relevant safety standards for the hazards of blue light to reduce the hazards of blue light in products. [0003] In particular, in the field of laser projection, laser projection is more and more popular due to its long life and high brightness. However, the current light source for ...

Claims

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Application Information

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IPC IPC(8): G03B21/20
CPCG03B21/20
Inventor 杨佳翼陈红运李屹
Owner APPOTRONICS CORP LTD
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