A light source system made of reflecting mirror

A light source system and reflector technology, applied in the field of lighting systems, can solve the problems of increased etendue and low system efficiency, and achieve the effect of simple structure and improved lighting efficiency

Inactive Publication Date: 2008-12-24
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

[0005] In order to overcome the large aberration of the above-mentioned optical system, especially the spherical aberration, which increases the etendue of the lighting system and the shortcomings of low system efficiency, the purpose of the present invention is to improve the optical extension of the lighting system by improving the design of the reflective bowl of the light source. To meet the needs of smaller-sized spatial light modulators and improve the lighting efficiency of the system, the present invention provides a light source system suitable for smaller-sized light modulators

Method used

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  • A light source system made of reflecting mirror
  • A light source system made of reflecting mirror
  • A light source system made of reflecting mirror

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Embodiment 1

[0021] Embodiment 1: the present invention presses as figure 2 Implementation of the structure shown: it consists of a light source 1, a hemispherical reflector 2, a hemispherical reflector 3, and a square rod 6.

[0022] The light source 1 adopts a short arc lamp; the hemispherical reflector 2 and the hemispherical reflector 3 are realized by molding glass-ceramic materials, and the hemispherical reflector 2 and the hemispherical reflector 3 are coated with a wide-spectrum cooling The reflective film filters out the infrared and ultraviolet spectrum bands that are harmful to the projection display. The square rod 6 is realized by a hollow wide-spectrum high-reflection mirror or solid K9 glass.

Embodiment 2

[0023] Embodiment 2: the present invention presses as image 3 The shown structural implementation is composed of a light source 1 , a hemispherical reflector 2 , a semiellipsoidal reflector 3 , a square rod 6 and a semihyperboloid reflector 8 . The light source 1, the hemispherical reflector 2, the hemispherical reflector 3 and the square rod 6 can be the same as those in the first embodiment. The material of the semi-hyperboloid reflector 8 is realized by casting glass-ceramics.

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Abstract

The invention relates to an illumination system with cold reflecting bowl in the field of projecting display optics technology. It is formed by 1 hemi-spherical reflecting mirror, 2 hemi-ellipsoid reflecting mirror 3 squard rod 6 and hemi-hyperbolical mirror 8. It guarantees the illumination even of the space optic modulator above 90% and adopts the space optic modulator of 0.5íó0.55íó0.7íó0.78íó0.9íó1.3 inch F / #ú¢2 to achieve 14íÒshed angle distal illumination. It uses Light Tools software illumination module modeling and simulation to compute 200,000 lights and obtains the design result on the space optic modulator.

Description

1. Technical field [0001] The invention belongs to the technical field of projection display optics, and relates to an illumination system with a cold reflective bowl design. 2. Background technology: [0002] The projection display system using the spatial light modulator as the image source has developed rapidly in recent years, and has been widely used in business, scientific research, education, entertainment and family life, especially the digital micromirror array (DMD) technology. The incoherent optical modulator technology developed by microfabrication and large-scale integrated circuit technology has realized commercial application with its simple principle and excellent performance. Because DMD has new characteristics different from other light modulators, it becomes more important to study the illumination system suitable for DMD projection display. [0003] In order to reduce the cost and reduce the size and weight of the projection display system, the DMD manuf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/14F21V7/04
Inventor 翁志成张增宝张新丛小杰崔继承
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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