Partially segmented deformable mirror

Patent · Tue Jan 01 04:00:00 EST 1991

OSTI ID:867824

Bliss, Erlan S ^[1]; Smith, James R ^[2]; Salmon, J Thaddeus ^[2]; Monjes, Julio A ^[3]

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1. Danville, CA
2. Livermore, CA
3. San Ramon, CA

A partially segmented deformable mirror is formed with a mirror plate having a smooth and continuous front surface and a plurality of actuators to its back surface. The back surface is divided into triangular areas which are mutually separated by grooves. The grooves are deep enough to make the plate deformable and the actuators for displacing the mirror plate in the direction normal to its surface are inserted in the grooves at the vertices of the triangular areas. Each actuator includes a transducer supported by a receptacle with outer shells having outer surfaces. The vertices have inner walls which are approximately perpendicular to the mirror surface and make planar contacts with the outer surfaces of the outer shells. The adhesive which is used on these contact surfaces tends to contract when it dries but the outer shells can bend and serve to minimize the tendency of the mirror to warp.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5016997
• OSTI ID: 867824
• Country of Publication: United States
• Language: English

Related Subjects

/359/372/
actuator
actuators
adhesive
approximately
approximately perpendicular
bend
contact
contact surface
contacts
continuous
contract
deep
deformable
deformable mirror
direction
direction normal
displacing
divided
dries
formed
front
front surface
grooves
inner
inner wall
inner walls
inserted
minimize
mirror
mirror surface
mutually
normal
outer
outer shell
outer shells
outer surface
outer surfaces
partially
partially segmented
perpendicular
planar
plate
plurality
receptacle
segmented
segmented deformable
separated
serve
shells
smooth
supported
surface
surfaces
tendency
tends
transducer
transducer supported
triangular
vertices
walls
warp