Supports – Pipe or cable – Extending through plate
Patent
1986-03-21
1987-11-10
Henry, Jon W.
Supports
Pipe or cable
Extending through plate
350632, 350639, 350486, 248476, 248487, 248480, G02B 508, G02B 718
Patent
active
047053690
ABSTRACT:
A mirror mount (10) is provided that allows free pitch, yaw and roll motion of the mirror (28) while keeping the location of a point (56) on the surface of the mirror (28) fixed in the rest frame of reference of the mount (10). Yaw movement is provided by two yaw cylinders (30,32) that are bearing (52) mounted to provide rotation. Pitch and roll motion is provided by a spherically annular shell (42) that is air bearing (72,74) mounted to move between a clamp (60) and an upper pedestal bearing (44). The centers of curvature of the spherical surfaces of the shell (42) lie upon the point (56). Pitch motion and roll motion are separately and independently imparted to mirror (28) by a pair of pitch paddles (34) and a pair of roll paddles (36) that are independently and separately moved by control rods (76,80) driven by motors (78,82).
REFERENCES:
patent: 4167306 (1979-09-01), Longland
Constant Richard E.
Henry Jon W.
The United States of America as represented by the United States
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