Title:
DEVICE FOR ACQUIRING EQUALLY BLURRED INTERMEDIATE IMAGES
Document Type and Number:
WIPO Patent Application WO/2010/017694
Kind Code:
A1
Abstract:
A device for acquiring equally blurred intermediate images to realize depth-of-field extension imaging is characterized in that: the lens of said device produces spatially constant and approximately equal psf output in the designed range of the depth of field; the lens realizing spatially constant transfer characteristic is a multi-focal focusing lens with light compensation; the angle of the light guided by the multi focuses changes with the object distance, but the position of the spot and the energy distribution on the image surface remain constant substantially.
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Inventors:
JIA WEI (CN)
ZHOU YEFENG (CN)
ZHOU YEFENG (CN)
Application Number:
PCT/CN2009/000941
Publication Date:
February 18, 2010
Filing Date:
August 17, 2009
Export Citation:
Assignee:
TYPONTEQ COMPANY (CN)
JIA WEI (CN)
ZHOU YEFENG (CN)
JIA WEI (CN)
ZHOU YEFENG (CN)
International Classes:
G02B27/00; G02B3/02
Foreign References:
| CN101048691A | 2007-10-03 | |||
| CN101080742A | 2007-11-28 | |||
| US20030057353A1 | 2003-03-27 |
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (Fortune International CenterNo. 17 Daliushu Road, Beijing 1, CN)
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