OPTICAL LOW-PASS FILTER AND IMAGING OPTICAL SYSTEM HAVING THE SAME
PROBLEM TO BE SOLVED: To provide an optical low-pass filter which is cheap, whose thickness is restricted, and which can be used in an optical system which needs the shortening of the optical length.SOLUTION: An optical low-pass filter according to the present invention which is obtained by photopol...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
09.02.2012
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Subjects | |
Online Access | Get full text |
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