Title:
PROJECTION OBJECTIVE LENS SYSTEM WITH INFRARED MONITORING
Document Type and Number:
WIPO Patent Application WO/2014/082298
Kind Code:
A1
Abstract:
A projection objective lens system with infrared monitoring, comprising a projection module, an infrared monitoring module (300), and an infrared laser emitting module (400), wherein the projection module comprises a projection light source (100) and a projection objective lens (200) connected to said projection light source (100), and a light-splitting element (500) that reflects infrared light rays and transmits visible light rays is provided inside the projection objective lens. The infrared monitoring module and the projection objective lens are connected. Once the optical axis of the infrared monitoring module passes through the light-splitting element, said axis shares an axis with the optical axis of the projection objective lens. The coincidence of the projection surface and the infrared monitoring screen allows for the maximization of the size of the sensing area on the infrared monitoring module and, at the same time, provides for high image resolution, even brightness, and minimal image distortion. Because the infrared monitoring module and the projection module share the same imaging system, the sensing area of the monitoring tableau on the sensing chip is fixed, and does not change when there are changes to the size of the projection tableau; thus, redrawing the positions of the monitoring points is unnecessary.
Inventors:
NA QINGLIN (CN)
HUANG YAN (CN)
WANG HAIXIANG (CN)
MAI HAOHUANG (CN)
FENG YINGPING (CN)
HUANG YAN (CN)
WANG HAIXIANG (CN)
MAI HAOHUANG (CN)
FENG YINGPING (CN)
Application Number:
PCT/CN2012/085664
Publication Date:
June 05, 2014
Filing Date:
November 30, 2012
Export Citation:
Assignee:
CINEPIC TECHNOLOGY SHENZHEN LTD (CN)
International Classes:
G02B27/18; G02B13/14; G03B21/14
Foreign References:
| CN201226040Y | 2009-04-22 | |||
| GB2478903A | 2011-09-28 | |||
| US6018630A | 2000-01-25 | |||
| JP2009064375A | 2009-03-26 |
Attorney, Agent or Firm:
SHENZHEN REFINED INTELLECTUAL PROPERTY OFFICE (GENERAL PARTNERSHIP) (CN)
深圳市瑞方达知识产权事务所（普通合伙） (CN)
深圳市瑞方达知识产权事务所（普通合伙） (CN)
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