On the possible use of deep U.V. photoresists correctors to obtain the ultimate U.V. resolution of space borne telescopes.
Abstract
Large space-borne telescopes are limited in their ultraviolet resolution by their large and medium scale (20 - 30 cm) surface irregularities (ripples). The authors present the principle, instrumentation and first results of a new interferometric method using a Michelson-Twyman configuration (diverging light beams) that allows to engrave on deep U.V. photoresists a phase compensating plate which permit to revocer, partly or entirely, the diffraction limited resolution of the telescope. The corrector that they obtain is a phase compensating plate in reflection with highs and lows on its surface perfectly conjugated in negative, with the primary mirror surface irregularities.
- Publication:
-
Instrumentation in astronomy V
- Pub Date:
- January 1984
- DOI:
- 10.1117/12.966163
- Bibcode:
- 1984SPIE..445..318D
- Keywords:
-
- Space Instrumentation:UV Telescopes;
- UV Telescopes:Space Instrumentation