Limitations on aspheric surface testing with simple null correctors |
Posted on:1990-07-23 | Degree:M.S | Type:Thesis |
University:The University of Arizona | Candidate:DeVoe, Catherine Ellen | Full Text:PDF |
GTID:2472390017953021 | Subject:Physics |
Abstract/Summary: | |
An analysis of the performance of simple refractive null compensators was done. Two types of correctors were studied--the Dall compensator and the Offner compensator. A framework was built for determining whether these simple null tests are adequate for a wide range of aspheric surfaces. Variables involved in determining a surface to be null tested are f-number, conic constant, and focal length. Examples are given on how to determine the best null test for several aspheric surfaces. Also of concern in the design of a null compensator was simplicity. Two elements were the maximum used for both compensators and all compensator surfaces were spherical. |
Keywords/Search Tags: | Simple, Compensator, Aspheric |
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