Computer Science
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4093..142r&link_type=abstract
Proc. SPIE Vol. 4093, p. 142-150, Current Developments in Lens Design and Optical Systems Engineering, Robert E. Fischer; R. Bar
Computer Science
Scientific paper
A method of minimizing the optical distortion from gravity sag on a suspended large autocollimating flat mirror has been devised. This method consists of an inverted nine- point Hindle-Mount. A conventional Hindle-mount is located underneath a sky-viewing mirror and is primarily under compression loads from the weight of the mirror. It is not suitable for the situation where the mirror is viewing the ground, since a mirror would tend to fall out of the mount when in an inverted position. The inverted Hindle-Mount design consists of bonded joints on the backside of the mirror that allow the mirror to be held or suspended above an object to be viewed. This ability is useful in optical setups such a s a calibration test where a flat mirror is located above a telescope so that the telescope may view a known optic.
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