Title:
REAL TIME BIREFRINGENT IMAGING SPECTROMETER BASED ON DIFFERENTIAL STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2015/124076
Kind Code:
A1
Abstract:
A real-time birefringent imaging spectrometer based on differential structure is provided. A polarization beam splitter to add an imaging branch is set. Meanwhile, the structure alters the conventional optical structure to the differential structure by setting another polarization beam splitter. Taking the difference between these two interferogram obtained by two branches of differential structure as the final interferogram and performing the required post-processing calculations produces the spectrum at each pixel. Common-mode error is intensively restrained due to thedifferential structure, and 50% of the optical loss is avoided because of casting off the analyzer; a high spatial resolution, high spectral resolution image is acquired by combining the high spatial resolution, colorful image with the low spatial resolution, high spectral resolution image.
Inventors:
JIN PENG (CN)
ZHU SHUAISHUAI (CN)
ZHANG YU (CN)
LIN JIE (CN)
ZHU SHUAISHUAI (CN)
ZHANG YU (CN)
LIN JIE (CN)
Application Number:
PCT/CN2015/072755
Publication Date:
August 27, 2015
Filing Date:
February 11, 2015
Export Citation:
Assignee:
HARBIN INST OF TECHNOLOGY (CN)
International Classes:
G01J3/447; G01J3/45
Foreign References:
| CN103822715A | 2014-05-28 | |||
| CN103822714A | 2014-05-28 | |||
| US20120268745A1 | 2012-10-25 | |||
| CN103119407A | 2013-05-22 | |||
| CN101819065A | 2010-09-01 | |||
| CN101793558A | 2010-08-04 | |||
| CN103528688A | 2014-01-22 | |||
| EP1598647A1 | 2005-11-23 |
Attorney, Agent or Firm:
INTELLECPRO CHINA LIMITED (CN)
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