Chopping secondary mirror system

Details Chopping secondary mirror system Chopping secondary mirror system

1989-08-08

1990-07-24

Arnold, Bruce Y.

350 66, 350637, G02B 2608

Patent

active

049431471

ABSTRACT:
A chopping secondary mirror system is provided, in which magnetic circuits of a driving motor for causing a secondary mirror to chop about its rotation axis are mounted to the secondary mirror via a driving motor mounting so that the magnetic circuits function as a balancing mass to position the center of gravity of a whole chopping section on said rotation axis. The driving motor mounting is secured to the secondary mirror at the center of the secondary mirror. Leaf springs are used as vibration damping springs of a reaction force compensator.

REFERENCES:
patent: 4613203 (1986-09-01), Proetel et al.
patent: 4632501 (1986-12-01), Glynn
"Proceedings of SPIE, vol. 817, pp. 28-33".

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