Stock material or miscellaneous articles – Composite – Of epoxy ether
Reexamination Certificate
2006-02-28
2006-02-28
Sellers, Robert (Department: 1712)
Stock material or miscellaneous articles
Composite
Of epoxy ether
C252S582000, C252S586000, C359S240000, C359S241000, C359S265000, C359S321000, C359S577000, C359S580000, C359S582000, C359S589000, C359S614000, C428S413000, C523S456000, C523S458000
Reexamination Certificate
active
07005186
ABSTRACT:
A new damage resistant and tolerant optical element is disclosed. Prior art solid or liquid host matrices are replaced by a soft crosslinked polymer or similar host material. The viscoelastic properties of the matrix host material are controlled during formation so that there are regions of different softness, of stiffness, within the matrix, to form a stiffness gradient. Preferably, the matrix will be softest at a preselected focal plane where maximum electromagnetic radiation or energy output may be expected. The host matrix is doped with an appropriate dopant having a concentration distribution, preferably such that the concentration of dopant is highest in the region where the host matrix material is most soft. Two important disclosed example embodiments are an optical limiter and a solid state dye laser.
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Brandelik Donna M.
Brant Mark C.
Campbell Angela L.
DeRosa Michael E.
McLean Daniel G.
AFMCLO/JAZ
Sellers Robert
Sinder Fredric L.
The United States of America as represented by the Secretary of
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