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US 8,323,854 B2Granted
Photopolymer media with enhanced dynamic range
AssigneeAkonia Holographics LLC
InventorFredric R. Askham
Life of this patent
Estimating the term…
Abstract
Dynamic range enhancing dopants for photopolymeric media are described. Also described are optical articles using these dopants and methods for making such optical articles.
Claims113
An article comprising:
- a support matrix comprising a polyurethane;
- a photoactive monomer;
- a photoinitiator;
- and
- a dynamic range enhancing dopant bound to the support matrix by an immobilizing group;
- wherein the dynamic range enhancing dopant comprises a radical trap group and an immobilizing group;
- wherein the article has a dynamic range that is at least about 1.1 times the value of the dynamic range of the same article without the dynamic range enhancing dopant;
- and
- wherein the dynamic range enhancing dopant has the following formula:
6 more elements
An article comprising:
- a support matrix comprising a polyurethane;
- a photoactive monomer;
- a photoinitiator;
- and
- a dynamic range enhancing dopant bound to the support matrix by an immobilizing group;
- wherein the dynamic range enhancing dopant comprises a radical trap group and an immobilizing group;
- wherein the article has a dynamic range that is at least about 1.1 times the value of the dynamic range of the same article without the dynamic range enhancing dopant;
- and
- wherein the dynamic range enhancing dopant has the following formula:
6 more elements
An article comprising:
- a support matrix comprising a polyurethane;
- a photoactive monomer;
- a photoinitiator;
- and
- a dynamic range enhancing dopant bound to the support matrix by an immobilizing group;
- wherein the dynamic range enhancing dopant comprises a radical trap group and an immobilizing group;
- wherein the article has a dynamic range that is at least about 1.1 times the value of the dynamic range of the same article without the dynamic range enhancing dopant;
- and
- wherein the dynamic range enhancing dopant has the following formula:
6 more elements
An article comprising:
- a support matrix comprising a polyurethane;
- a photoactive monomer;
- a photoinitiator;
- and
- a dynamic range enhancing dopant bound to the support matrix by an immobilizing group;
- wherein the dynamic range enhancing dopant comprises a radical trap group and an immobilizing group;
- wherein the article has a dynamic range that is at least about 1.1 times the value of the dynamic range of the same article without the dynamic range enhancing dopant;
- and
- wherein the dynamic range enhancing dopant has the following formula:
6 more elements
An article comprising:
- a support matrix comprising a polyurethane;
- a photoactive monomer;
- a photoinitiator;
- and
- a dynamic range enhancing dopant bound to the support matrix by an immobilizing group;
- wherein the dynamic range enhancing dopant comprises a radical trap group and an immobilizing group;
- wherein the article has a dynamic range that is at least about 1.1 times the value of the dynamic range of the same article without the dynamic range enhancing dopant;
- and
- wherein the dynamic range enhancing dopant has the following formula:
6 more elements
An article comprising:
- a support matrix comprising a polyurethane;
- a photoactive monomer;
- a photoinitiator;
- and
- a dynamic range enhancing dopant bound to the support matrix by an immobilizing group;
- wherein the dynamic range enhancing dopant comprises a radical trap group and an immobilizing group;
- wherein the article has a dynamic range that is at least about 1.1 times the value of the dynamic range of the same article without the dynamic range enhancing dopant;
- and
- wherein the dynamic range enhancing dopant has the following formula:
6 more elements
An article comprising:
- a support matrix comprising a polyurethane;
- a photoactive monomer;
- a photoinitiator;
- and
- a dynamic range enhancing dopant bound to the support matrix by an immobilizing group;
- wherein the dynamic range enhancing dopant comprises a radical trap group and an immobilizing group;
- wherein the article has a dynamic range that is at least about 1.1 times the value of the dynamic range of the same article without the dynamic range enhancing dopant;
- and
- wherein the dynamic range enhancing dopant has the following formula:
6 more elements
An article comprising:
- a support matrix comprising a polyurethane;
- a photoactive monomer;
- a photoinitiator;
- and
- a dynamic range enhancing dopant bound to the support matrix by an immobilizing group;
- wherein the dynamic range enhancing dopant comprises a radical trap group and an immobilizing group;
- wherein the article has a dynamic range that is at least about 1.1 times the value of the dynamic range of the same article without the dynamic range enhancing dopant;
- and
- wherein the dynamic range enhancing dopant has the following formula:
6 more elements
An article comprising:
- a support matrix comprising a polyurethane;
- a photoactive monomer;
- a photoinitiator;
- and
- a dynamic range enhancing dopant bound to the support matrix by an immobilizing group;
- wherein the dynamic range enhancing dopant comprises a radical trap group and an immobilizing group;
- and
- wherein the article has a dynamic range that is at least about 1.1 times the value of the dynamic range of the same article without the dynamic range enhancing dopant;
- and
- wherein the photoactive monomer has the following formula:
7 more elements
Dependencies are inferred from the claim text.