科研之友
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摘要
A compensator (null-corrector) for testing aspheric optical surfaces is proposed, which enables (i) independent verification of optical elements and assembling of the compensator itself, and (ii) ascertaining the compensator position in a control layout for a specified aspheric surface. The compensator consists of three spherical lenses made of the same glass. In this paper, the scope of the compensator expanded to a surface speed similar to f/2.3; a conceptual example for a nominal primary of Hubble Space Telescope is given. The autocollimating design allows significant reducing difficulties associated with practical use of lens compensators.
- 出版日期2014-5
