Active optics correction of thermal distortion of a 1.8 meter mirror

Details Active optics correction of thermal distortion of a 1.8 meter mirror Active optics correction of thermal distortion of a 1.8 meter mirror

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988opten..27..115p&link_type=abstract

Optical Engineering (ISSN 0091-3286), vol. 27, Feb. 1988, p. 115-122.

Physics

Optics

3

Borosilicate Glass, Computer Techniques, Mirrors, Surface Distortion, Thermal Expansion, Calibrating, Least Squares Method, Polynomials, Temperature Measurement

Scientific paper

An active optics system has been built and tested on a prototype 1.8 m lightweight borosilicate glass mirror. Tests of the system have been conducted in two different modes: the system has been used to compensate measured optical surface distortions, and it has been used to correct thermal distortion predicted by computer modeling based on measured mirror temperatures. Both modes were consistently able to reduce rms figure errors on the mirror surface. Test results show that distortions corresponding to astigmatism, coma, spherical aberration, trefoil, and quatrefoil can be effectively countered.

Affiliated with

Also associated with

No associations

Rating

Active optics correction of thermal distortion of a 1.8 meter mirror does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Active optics correction of thermal distortion of a 1.8 meter mirror, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active optics correction of thermal distortion of a 1.8 meter mirror will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1227641