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US 12,071,515 B2Granted
High dynamic range two-stage photopolymers
AssigneeThe Regents of the University of Colorado, a body corporate
InventorsMarvin D. Alim, Christopher N. Bowman, Sudheendran Mavila, Robert R. McLeod
Life of this patent
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Abstract
The present invention, in one aspect, relates to monomers and photopolymers that exhibit a high refractive index. The photopolymers of the invention have properties suitable for fabricating holographic optical elements (HOEs).
Claims20
A monomer of formula (I):
- wherein:
- each instance of Y is independently O, S, or NH;
- each instance of R2 is independently selected from the group consisting of:
- x is 1 or 2, wherein:
- x is 1 and R1 is independently selected from the group consisting of:
- or
- x is 2 and R1 is independently selected from the group consisting of:
- and
- R3 is selected from the group consisting of:
- and
- R4 is selected from the group consisting of H and —CH3;
- R5 is selected from the group consisting of H, optionally substituted C1-C6 alkyl, optionally substituted C1-C6 heteroalkyl, optionally substituted C2-C6 alkenyl, optionally substituted C2-C6 heteroalkenyl, optionally substituted C2-C6 alkynyl, and optionally substituted C2-C6 heteroalkynyl.
9 more elements
Dependencies are inferred from the claim text.