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Lens With Transformable-Type and Tunable-Focal-Length Characteristics

✍ Scribed by Yu Hongbin; Zhou Guangya; Chau Fook Siong; Wang Shouhua

Book ID
114570756
Publisher
IEEE
Year
2009
Tongue
English
Weight
742 KB
Volume
15
Category
Article
ISSN
1077-260X

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A method of testing the monochromatic focal length of a spherical lens by using a joint Fourier transform spectrum interference technique is proposed and experimentally demonstrated. The focal length is determined by the spacing of the interference fringes resulting from two identical input images a