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

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Problems solved by technology

Therefore, the blue light (wavelength 440-450nm) emitted by the general blue light excitation light will look like a blue

Method used

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  • Lighting device and projection device
  • Lighting device and projection device
  • Lighting device and projection device

Examples

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Example Embodiment

[0028] The description of the following embodiments refers to the attached drawings to illustrate specific embodiments that the present invention can be implemented. The directional terms mentioned in the present invention, such as "up", "down", "front", "rear", "left", "right", "in", "out", "side", etc., are for reference only The direction of the additional schema. Therefore, the directional terms used are used to describe and understand the present invention, rather than to limit the present invention.

[0029] In the figures, units with similar structures are indicated 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 of this embodiment includes a light source (not shown in the figure) for generating blue excitation light 3001, and the peak wavelength range of the blue excitation light spectrum is greater than or equal to ...

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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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