US4906407A
Expired / Lapsed
US
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Azomethine compositions having nonlinear optical properties
Assignee: CNA Holdings LLC
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Filing: 1989-03-20
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Granted: 1990-03-06
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Expires: 2009-03-20
Abstract
Abstract In one embodiment this invention provides a novel class of azomethine compounds which exhibit nonlinear optical response, such as 4-(4-dimethylaminobenzylideneamino)-4'-nitrostilbene: ##STR1##
Inventors
- 👤 Ronald N. DeMartino
- 👤 Hyun-Nam Yoon
- 👤 James B. Stamatoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:29
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3611; C; C07; C07C; C07C251/00; C07C251/02; C07C251/24; C07C255/00; C07C255/61
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
100 words
In a light switch or light modulator device with an organic nonlinear optical component, the improvement which comprises said optical component consisting of a transparent solid medium which is a blend of constituents comprising (1) a host thermoplastic polymer; and (2) a guest organic compound exhibiting nonlinear optical response which corresponds to the formula: ##STR25## where X 1 is --NR 2 R 2 , --OR 2 or --SR 2 ; R 1 is hydrogen or methyl; R 2 is hydrogen or a C 1 -C 20 alkyl group; and Z 1 is --NO 2 , --CN or --CF 3 .
Claim 2
Dependent Claim
100 words
In a light switch or light modulator device with an organic nonlinear optical component, the improvement which comprises said optical component consisting of a transparent solid medium which is a blend of constituents comprising (1) a host thermoplastic polymer; and (2) a guest organic compound exhibiting nonlinear optical response which corresponds to the formula: ##STR25## where X 1 is --NR 2 R 2 , --OR 2 or --SR 2 ; R 1 is hydrogen or methyl; R 2 is hydrogen or a C 1 -C 20 alkyl group; and Z 1 is --NO 2 , --CN or --CF 3 .
Claim 3
Dependent Claim
19 words
A device in accordance with claim 1 wherein the organic nonlinear optical component has an external field-induced molecular orientation.
References Cited (Backward Citations)
US3697595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |