Deformable mirror with pneumatic actuator pre-load

Optical: systems and elements – Mirror – Including specified control or retention of the shape of a...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

359846, G02B 7185

Patent

active

052047849

ABSTRACT:
In a deformable mirror having a mirror face plate and a plurality of axially movable piezoelectric actuators for controlling the contour thereof, an improvement is provided by which a pneumatic pre-load assembly is inserted between the face plate and the actuators. The assembly includes a core, having apertures therethrough, with a plurality of mirror surface contour posts passing separately through said apertures and a diaphragm plate which is mounted between the face plate and the core and spaced from such face plate but in contact with such core and one end of the posts. A rear plate is mounted to the other end of such posts and in spaced proximity with the core, which core, together with the diaphragm plate and the rear plate, define a cavity therebetween. The posts are aligned with actuators on the other side of the rear plate. Gas is applied to such cavity to bring the posts and the rear plate into contact with their associated actuators so as to pre-load them. A voltage is then applied to the piezoelectric actuators to increase their length against the pre-loaded rear plate and the posts to change the contour of the mirror face plate. Such pre-loaded rear plate tends to compress the actuators when the voltage is shut off so that by controlling the voltage, one can move the mirror surface contour back and forth as desired.

REFERENCES:
patent: 3904274 (1975-09-01), Feinleib et al.
patent: 4175835 (1979-11-01), Kuhn, Jr.
patent: 4492431 (1985-01-01), Eitel et al.
patent: 4655560 (1987-04-01), Glomb, Jr.
patent: 4679915 (1987-07-01), Kritz et al.
patent: 4844603 (1989-07-01), Eitel et al.
patent: 4934803 (1990-06-01), Ealey
patent: 5016998 (1991-05-01), Butler et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Deformable mirror with pneumatic actuator pre-load does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Deformable mirror with pneumatic actuator pre-load, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Deformable mirror with pneumatic actuator pre-load will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1529816

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.