Lighting system and projecting system

A technology of projection system and lighting system, applied in optics, instruments, nonlinear optics, etc., can solve the problems of increased production cost and difficult assembly of the lighting system 100, and achieves the effects of good quality and improved light utilization.
CN100538507CInactive Publication Date: 2009-09-09CHUNGHWA PICTURE TUBES LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHUNGHWA PICTURE TUBES LTD
Publication Date
2009-09-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

A lighting system comprises a light source module, the first integral array lens, a column-shaped array lens, a polarized light splitting transducer, a column-shaped lens, a condensing lens and a collimating lens. The light source module is used to send out the white light, while the first integral array lens, the column-shaped array lens, the polarized light splitting transducer, the column-shaped lens, the condensing lens and the collimating lens are arranged successively along the light path of the white light, so that the column-shaped array lens can adjust the shape of the light spot focused by the white light. Thus, the light spot almost penetrates the polarized light splitting transducer thoroughly, so as to increase the optical utilization ratio of the lighting system. In addition, a projection system is also brought forward. Such projection system includes the lighting system and a LCD panel.
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Description

technical field

[0001] The present invention relates to an illumination system and a projection system, and in particular to an illumination system and a projection system with better light utilization. Background technique

[0002] With the advancement of modern video technology, projection devices have been widely used in meeting rooms, large venues, movie theaters, etc. to provide large-area images. Therefore, the lighting system in the projection device often needs to provide a light source with higher brightness to clearly project an image. However, if the light utilization efficiency inside the lighting system is not good, the brightness of the light source is insufficient and the image is blurred, which will reduce the quality of the projection device. Therefore, how to effectively improve the light utilization rate of the lighting system has become an important research and development topic.

[0003] figure 1 It is a schematic side view of a known lighting system...

Claims

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