Zobrazeno 1 - 10 of 16 pro vyhledávání: '"J. C. Wyant"'
1
Rough surface interferometry at 10.6 microm
Autor: O, Kwon, J C, Wyant, C R, Hayslett
Publikováno v: Applied optics. 19(11)
An IR Twyman-Green interferometer is described. It uses a cw CO(2) laser as a light source operating at a 10.6-microm wavelength. Theoretical analysis and experimental measurements of the relationship between the contrast of the interference fringes
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::2106135332d37ccb468db932589d6070
https://pubmed.ncbi.nlm.nih.gov/20221137
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5
Shape Measurement Of Deep Aspheric Optical Surfaces By Radial Shear Interferometry
Autor: J. C. Wyant, Junejei Huang, T. Honda, J. Tsujiuchi
Publikováno v: SPIE Proceedings.
Nowadays, mirrors and lenses are used that have surfaces with a deep asphericity of rotational symmetry, and there is a strong need for the precise shape measurement of these surfaces. It is not easy to measure this kind of surface by using the commo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6c6eac2bbd9caa0da7baf28fe0af3ba
https://doi.org/10.1117/12.967294
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6
Computer Controlled Optical Figuring at the Optical Sciences Center: An Overview
Autor: John Hayes, J. C. Wyant, C. R. Hayslett
Publikováno v: Workshop on Optical Fabrication and Testing.
Although computers have been used extensively for optical design and analysis, the use of computers to control optical fabrication has been limited to only a few applications. During the early 1970's computer controlled optical figuring machines were
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a71b926431e6a4d82bbb96923dbb6062
https://doi.org/10.1364/oft.1981.tb5
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7
Dependence Of The Diffraction Efficiency Of Bi12SiO20 On Recording Parameters
Autor: J. D. Gaskill, J. C. Wyant, Philip S. Lam
Publikováno v: SPIE Proceedings.
The dependence of the diffraction efficiency and hologram writing rate of Bi12Si020 crystals on bias voltage and write-beam irradiance was investigated. The diffraction efficiency was found to increase with increasing bias voltage, but displayed very
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44ff7994a112ecc8ce07d20094b3f7ee
https://doi.org/10.1117/12.934893
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8
Two-Wavelength Contouring With The Automated Thermoplastic Holographic Camera
Autor: E.Bernal G., T. C. Lee, J. C. Wyant, K. M. Leung
Publikováno v: Interferometry.
Two-wavelength holography has been demonstrated to be a useful tool for contour mapping of three-dimensional objects. The combination of a tunable dye laser with a thermoplastic device allows the mapping of a diffused object in any desirable contour
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64b852b36a200cfe29ef933a83841597
https://doi.org/10.1117/12.957855
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9
Interferometer for measuring power distribution of ophthalmic lenses
Autor: J. C. Wyant, F. D. Smith
Publikováno v: Applied Optics. 14:1607
The use of a lateral shear interferometer in measuring the power variation of ophthalmic lenses is described and demonstrated. It is shown that an appropriate lateral shear interferometer directly measures the power variation of an ophthalmic lens. I
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2687590eab62bca49a4971817054d85d
https://doi.org/10.1364/ao.14.001607
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