Partially segmented deformable mirror

Patent · Tue Jan 01 00:00:00 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 (United States)
• 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

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