US4948216A
Expired / Lapsed
US
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Optical devices having layers of low molecular weight organic materials and methods for making
Assignee: Eastman Kodak Co
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Filing: 1988-11-21
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Granted: 1990-08-14
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Expires: 2008-11-21
Abstract
Abstract There is disclosed an optical device comprising a support having thereon a transparent amorphous layer of a low molecular weight organic compound, said layer having a glass transition temperature above about 50° C. Also disclosed is a method for making the device including the step of vacuum depositing the organic compound on the support. Particularly preferred devices are integrated optical devices which include a pattern of a second index of refraction or effective index of refraction in the layer, which pattern can define an optical element.
Inventors
- 👤 John C. Brazas, Jr.
- 👤 Delwyn E. Machiele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:37
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/122
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
30 words
An optical device comprising a support having thereon a transparent amorphous layer of a low molecular weight organic compound, said layer having a glass transition temperature above about 50° C.
Claim 2
Dependent Claim
30 words
An optical device comprising a support having thereon a transparent amorphous layer of a low molecular weight organic compound, said layer having a glass transition temperature above about 50° C.
Claim 3
Dependent Claim
17 words
An optical device according to claim 1, wherein said glass transition temperature is above about 100° C.
Claim 4
Dependent Claim
20 words
An optical device according to claim 1, wherein said layer comprises a mixture of said low molecular weight organic compounds.
Claim 5
Dependent Claim
51 words
An optical device according to claim 1, wherein said low molecular weight organic compound is a phenylindan compound of the structure: ##STR29## wherein R and R 1 are independently selected from the group consisting of nitro, amino, carboxyl, foramido groups, carbamoyl groups and heterocyclic groups derived from amino or carboxyl groups.
Claim 6
Dependent Claim
51 words
An optical device according to claim 1, wherein said low molecular weight organic compound is a phthalimide compound of the structure: ##STR30## wherein R and R 1 are independently selected from the group consisting of nitro, amino, carboxyl, foramido groups, carbamoyl groups and heterocyclic groups derived from amino or carboxyl groups.
Claim 7
Independent Claim
48 words
A method of making an optical device comprising a support having thereon a transparent amorphous layer of a low molecular weight organic compound, said layer having a glass transition temperature above about 50° C., said method comprising the step of vacuum depositing said organic compound onto said support.
Claim 8
Independent Claim
48 words
A method of making an optical device comprising a support having thereon a transparent amorphous layer of a low molecular weight organic compound, said layer having a glass transition temperature above about 50° C., said method comprising the step of vacuum depositing said organic compound onto said support.
Claim 9
Dependent Claim
56 words
An integrated optic device comprising a support having thereon a transparent amorphous layer for light propagation having a first refractive index, said layer comprising a low molecular weight organic compound having a glass transition temperature above about 50° C., said layer further comprising a pattern having a second refractive index said pattern defining an optical element.
Claim 10
Dependent Claim
56 words
An integrated optic device comprising a support having thereon a transparent amorphous layer for light propagation having a first refractive index, said layer comprising a low molecular weight organic compound having a glass transition temperature above about 50° C., said layer further comprising a pattern having a second refractive index said pattern defining an optical element.
Claim 11
Dependent Claim
29 words
An integrated optic device according to claim 7, wherein said pattern having a second refractive index is formed by an increased thickness in said layer corresponding to said pattern.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-13 | 1994-02-12 | 1994-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-13 | 1998-02-12 | 1998-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-13 | 2002-02-12 | 2002-08-14 | $7700.00 | Window Closed / Lapsed |