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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.

Inactive Publication Date: 2009-09-09
CHUNGHWA PICTURE TUBES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Incidentally, since the lighting system 100 is only symmetrical to the central optical axis in assembly, it is not easy to assemble the lighting system 100 in mass production, which will also increase its production cost.

Method used

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  • Lighting system and projecting system
  • Lighting system and projecting system

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Embodiment Construction

[0049] In order to make the above and other objects, features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with accompanying drawings.

[0050] image 3 It is a schematic side view of a projection system according to an embodiment of the present invention. Please refer to image 3 , the projection system 20 of the present invention includes an illumination system 200 and a liquid crystal panel 202, and the illumination system 200 includes a light source module 210, a first integral array lens 220, a cylindrical lens array 230, and a polarization splitting converter 240 , a lenticular lens 250 , a condenser lens 260 and a collimator lens 270 . Wherein, the light source module 210 is suitable for emitting a white light 212, and the first integral array lens 220, the lenticular lens array 230, the polarization beam splitting converter 240, the lenticular lens 250, the condenser lens 260 and the collimati...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/14G02B27/18G02F1/13
Inventor 黄致维杨松泽陈顺益刘梅戴文智
Owner CHUNGHWA PICTURE TUBES LTD
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