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Lighting device and projection device

A technology of lighting device and driving device, applied in the field of projection, can solve problems such as affecting the visual effect of solid-state light sources, and achieve the effect of ensuring the visual effect

Active Publication Date: 2015-09-02
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the blue light (wavelength 440-450nm) emitted by the general blue light excitation light will look like a blue-violet light instead of pure blue light, thus easily affecting the visual effect produced by the solid-state light source

Method used

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Embodiment Construction

[0028] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0029] In the figures, structurally similar units are denoted by the same reference numerals.

[0030] Please refer to image 3 , which is a schematic structural diagram of the first embodiment of the lighting device 3000 in the present invention. The lighting device in this embodiment includes a light source (not shown in the figure) for generating blue excitation light 3001 , the peak wavelength range of the blue excitation light spectrum is greater...

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Abstract

The invention provides a lighting device and a projection device. The lighting device includes a light source used for generating blue exciting light, a substrate and a wavelength conversion material layer that covers the substrate, wherein the wavelength conversion material layer is used for absorbing part of the blue exciting light and emitting excited light; color coordinates of the excited light are positioned in a predetermined color region, so that the wavelength conversion material layer emits mixed light consisting of the excited light and the residual blue exciting light which is not absorbed by the wavelength conversion material layer; and color coordinates of the mixed light are closer to predetermined blue light color coordinates than the color coordinates of the blue exciting light.

Description

[0001] This application is a divisional application with the application number 201110397907.2 submitted by the applicant on March 19, 2012, and the title of the invention is "illumination device and projection device". 【Technical field】 [0002] The present invention relates to the field of projection technology, in particular to an illumination device, a projection system for its application, and a blue light correction method. 【Background technique】 [0003] Solid-state light sources, such as blue light-excited light-emitting diodes (LD, Laser Diode) or light-emitting diodes (LED, Light Emitting Diode), which can generate high-brightness light, and have been widely used in various electronic products, such as lighting devices middle. [0004] Currently, different types of solid-state light sources can emit different colors of light, such as blue light, red light, or yellow light. However, generally the blue light emitted by the blue excitation light itself has a waveleng...

Claims

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Application Information

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IPC IPC(8): G03B21/20F21V9/40
CPCG03B21/204G03B21/2066G03B33/08H04N9/3114
Inventor 胡飞
Owner APPOTRONICS CORP LTD
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