An improved technique of measuring the focal length of a lens
โ Scribed by Chon-Wen Chang; Der-Chin Su
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 706 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0030-4018
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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
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