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Direct determination of focal length by using Talbot interferometry

โœ Scribed by Sriram, Kuppuswamy Venkatesan ;Kothiyal, Mahendra Prasad ;Sirohi, Rajpal Singh


Book ID
115342390
Publisher
The Optical Society
Year
1992
Tongue
English
Weight
553 KB
Volume
31
Category
Article
ISSN
1559-128X

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In this paper, we proposed a phase shifting Lau phase interferometry for the measurement of the focal length of a lens. The fundamentals of this application are discussed and the basis of the phase map interpretation is outlined. A three step phase-shifting algorithm is used to depict the phase maps