Apparatus for and method of correcting for astigmatism in a light beam reflected off of a light reflecting surface
Patent
·
OSTI ID:866158
- Pleasanton, CA
- Livermore, CA
A technique for adjustably correcting for astigmatism in a light beam is disclosed herein. This technique utilizes first means which defines a flat, rectangular light reflecting surface having opposite reinforced side edges and which is resiliently bendable, to a limited extent, into different concave and/or convex cylindrical curvatures about a particular axis and second means acting on the first means for adjustably bending the light reflecting surface into a particular selected one of the different curvatures depending upon the astigmatism to be corrected for and for fixedly maintaining the curvature selected. In the embodiment disclosed, the light reflecting surface is adjustably bendable into the selected cylindrical curvature by application of a particular bending moment to the reinforced side edges of the light reflecting surface.
- 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 4647164
- OSTI ID:
- 866158
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/359/
acting
adjustably
adjustably correcting
apparatus
application
astigmatism
axis
beam
beam reflected
bendable
bending
concave
convex
corrected
correcting
curvature
curvatures
cylindrical
defines
depending
disclosed
edges
embodiment
extent
fixedly
flat
light
light beam
light reflecting
limited
limited extent
maintaining
means
means acting
method
moment
opposite
particular
rectangular
reflected
reflecting
reflecting surface
reinforced
resiliently
selected
surface
technique
technique utilizes
utilizes
acting
adjustably
adjustably correcting
apparatus
application
astigmatism
axis
beam
beam reflected
bendable
bending
concave
convex
corrected
correcting
curvature
curvatures
cylindrical
defines
depending
disclosed
edges
embodiment
extent
fixedly
flat
light
light beam
light reflecting
limited
limited extent
maintaining
means
means acting
method
moment
opposite
particular
rectangular
reflected
reflecting
reflecting surface
reinforced
resiliently
selected
surface
technique
technique utilizes
utilizes