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A color wheel and its laser light source system

A laser light source and color wheel technology, applied in the field of projection, can solve the problem of reducing green light energy and achieve the effect of energy conservation

Active Publication Date: 2018-04-24
IVIEW DISPLAY SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, blue light is mostly used to excite yellow light and green light, and then pass through a red filter to generate red light. However, due to the overlap of the spectrum of yellow light and green light, the energy of green light will be reduced while passing through the red filter. , in order to solve the above problems, we provide this design scheme

Method used

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  • A color wheel and its laser light source system
  • A color wheel and its laser light source system

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Embodiment

[0033] like figure 2 Shown is a schematic structural diagram of a laser light source system of the present invention, including: a light source excitation unit 20 capable of generating blue laser light, a color wheel 10 , a mirror group, a color mirror group, a red filter 40 and a beam adjustment unit 60 .

[0034] The reflector group includes: a first reflector 32 , a second reflector 34 and a third reflector 37 all of which can reflect all colored light.

[0035] Wherein the color mirror group comprises: the first color mirror 31 that reflects blue light and passes yellow light and green light, the second color mirror 33 that reflects green light and passes blue light, the third color mirror 35 that reflects red light and passes blue light and green light, and the green light that reflects The fourth color mirror 36 that transmits yellow light.

[0036] The first reflection mirror 32, the second reflection mirror 34, the third color mirror 35 and the third reflection mirro...

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PUM

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Abstract

A color wheel includes an inner ring, including translucent regions which are diagonally distributed; and an outer ring, including fluorescent regions and a translucent region, the fluorescent regions including green fluorescent regions and yellow fluorescent regions, the green fluorescent regions being diagonally distributed; wherein, the angles of the translucent regions of the inner ring are greater than or equal to the angles of the green fluorescent regions of the outer ring, the angle extension lines of the ring-shaped green fluorescent regions passing through the center of a circle fall within the ring-shaped translucent regions of the inner ring, such that the green light generated in the green fluorescent regions passes through the translucent regions after being reflected, and the yellow light generated in the yellow fluorescent regions is projected to a red light filter after being reflected.

Description

technical field [0001] The invention relates to the technical field of projection, in particular to a color wheel and a laser light source system thereof. Background technique [0002] Relevant simulation studies show that under the premise that the red light saturation is not high, the brightness of the two-color wheel is only 9.5% higher than that of the single-color wheel, so in some occasions, the single-color wheel can meet the needs of users. [0003] The light source of a projector is generally a system that can produce three primary colors of red light, green light, and blue light. However, the luminous efficiency of solid-state light-emitting elements is generally blue. Cooperate with the fluorescent agent color wheel to excite various colors of light, instead of the red light solid-state light-emitting element or the green solid-state light-emitting element directly emitting red and green light, so as to improve the luminous efficiency of the light source system, b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/20
Inventor 高志强杨伟樑赵远赖鸿基宁曼莹
Owner IVIEW DISPLAY SHENZHEN CO LTD
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