Light source capable of supplying polychromatic light and method thereof

A technology of light source and colored light, which is applied in the field of light-emitting/illumination devices and their systems, can solve problems such as poor real-time performance and affecting color mixing, and achieve the effect of easy implementation, ingenious structure, and elimination of spoke spots

Active Publication Date: 2009-12-02
APPOTRONICS CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The disadvantage of the above-mentioned prior art is that: the spoke spot reuse method needs to set or estimate the predetermined composite light output intens

Method used

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  • Light source capable of supplying polychromatic light and method thereof
  • Light source capable of supplying polychromatic light and method thereof
  • Light source capable of supplying polychromatic light and method thereof

Examples

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Example Embodiment

[0036] Hereinafter, the present invention will be further described with reference to the preferred embodiments shown in the accompanying drawings.

[0037] The method for providing color-changing light from an existing light source includes the following steps:

[0038] A light source is arranged to direct the light beam from the light source to a moving device: the light beam can be directed to the moving device, or directed to the moving device by reflection from a reflective device (such as a mirror or beam splitter filter) or optical fiber guidance;

[0039] The moving surface of the moving device is divided into several regions with different characteristics; the movement of the moving surface causes these regions to face the light beam from the light source in sequence, so as to successively generate light of different wavelengths to form a second light beam : For example, a color wheel, which transmits light of different wavelengths through different regions;

[0040]...

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PUM

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Abstract

The invention relates to a light source capable of supplying polychromatic light and a method thereof. The light source comprises a light emitting source (2), a motion device (1), a light beam (41), a second light beam (42), a second light emitting source (3) and a light beam (43), wherein the motion surface comprises the motion device (1) with a plurality of areas with different characteristics, the areas sequentially face to the light beam (41) from the light emitting source along motion and sequentially generate light with different wavelengths to form the second light beam (42); particularly, the second light emitting source (3) is arranged in the light source and guides the light beam (43) from the second light emitting source and the second light beam (42) to be collected so as to form an output light beam of the light source; the output light beam of the light source has a preset color or color change by adopting a control unit of the light emitting sources to respectively control lightening time intervals of the light emitting source (2) and the second light emitting source (3), for example, in the period of spoke, the light source more suitable for a projection display system can be supplied in such a way that the light source only outputs the light beam (43) of the second light emitting source. The invention has the advantages of simple control processing and easy realization.

Description

technical field [0001] The present invention relates to a lighting / illumination device and its system, in particular to a light source structure and method for generating varying lighting effects by splitting or combining light beams. Background technique [0002] In the field of image projection, for example (but not limited to) involving rear projection television (RPTV) or front projectors, light source application technology has become more and more mature. While the prior art provides a variable color light source for this field, it continuously optimizes the performance, structure or cost of the light source. [0003] In view of the advantages of solid-state light sources, such as semiconductor light-emitting diodes (Light Emitting Diode, LED), which have long service life, low power consumption, and adjustable wavelength, with the continuous emergence of various new high-power and high-brightness LEDs, LED light sources are widely used in the above fields. get more a...

Claims

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Application Information

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IPC IPC(8): F21S10/02F21V13/00F21V14/00G02B27/10H04N9/12
Inventor 李屹
Owner APPOTRONICS CORP LTD
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