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Projection lighting system and projector for its application

A lighting system and projection technology, which is applied in the field of projectors, can solve the problems of limiting the application of LCoS projectors and low luminous brightness, and achieve the effects of improving optical utilization, increasing exit pupil brightness, and low power

Active Publication Date: 2020-11-10
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the lighting source of the LCoS projector is generally an ultra-high pressure mercury lamp or a light-emitting diode. When the light-emitting diode is used as the lighting source, the luminance of the LCoS projector is low, which greatly limits the application of the LCoS projector.

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  • Projection lighting system and projector for its application
  • Projection lighting system and projector for its application
  • Projection lighting system and projector for its application

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Embodiment Construction

[0051] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0052] see Figure 1-8 , It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number and shape of components in actual implementation. and size drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual im...

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Abstract

The invention proposes a projection lighting system. The projection lighting system comprises a substrate, a light source array, a lens array, a diffraction optical component, a polarization split prism and a display unit, wherein the light source array is arranged on the substrate and comprises a plurality of light sources, the lens array is arranged above the light source array in an alignment way, the lens array comprises a plurality of lens, the lens and the centers of the light sources are arranged at the same straight line, the diffraction optical component is arranged on an axial direction of the light source array, the diffraction optical component and the center of the light source array are arranged at the same straight line, the diffraction optical component comprises a first diffraction optical component and a second diffraction optical component, the polarization split prism is arranged on an axial direction of the light source array, the polarization split prism and the center of the light source array are arranged on the same straight line, the display unit is arranged at one side of an emergent surface of the polarization split prism, and a central line of the display unit and a central line of the second diffraction optical component vertically cross at a central point of the polarization split prism.

Description

technical field [0001] The invention relates to the technical field of projection display, in particular to a projection lighting system and a projector for its application. Background technique [0002] LCoS (Liquid Crystal on Silicon, liquid crystal on silicon or liquid crystal on silicon) display device is a new type of reflective projection display device, which is a liquid crystal display device that uses semiconductor silicon technology to control liquid crystal and then "projects" a color picture. Compared with transmissive liquid crystal (Liquid Crystal Display, LCD) and digital micromirror technology (Digital Micromirror Device, DMD), LCoS display devices have the advantages of high light utilization efficiency, small size, high aperture ratio, and mature manufacturing technology, and can be easily High resolution and full color expression are easily achieved. Because the LCoS display device has the above-mentioned advantages, the LCoS display device has great adva...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/20
CPCG03B21/2013G03B21/2033G03B21/206G03B21/2073
Inventor 冯奇斌刘欣郭敏吕国强王梓
Owner HEFEI UNIV OF TECH