US3860915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Matrix arrangement for operating optical elements
Assignee: GEIER KARL HEINZ
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Filing: 1973-06-29
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Granted: 1975-01-14
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Expires: 1993-06-29
Abstract
Abstract A matrix comprising optical elements, the optical properties of which being variable through an electro-magnetical field applied, said optical elements are connected in series to a first decoupling diode, and in parallel to a second diode, reversely connected to said first one and adapted to remove disturbing currents from said optical elements, being used as storage elements. The matrix may be constructed in semiconductor block techniques.
Inventors
- 👤 Karl-Heinz Geier
- 👤 Dietmar Schmidt
- 👤 Lothar Uhlmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:57
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/36; G02; G02F; G02F1/00; G02F1/01; G02F1/03; G02F1/055; G02F1/13; G02F1/133; G02F1/136; G02F1/1362; G02F1/1365; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
249 words
''''A two-dimensional matrix arrangement for operating optical elements, particularly for use in storages comprising a p-type semiconductor layer, an n-type semiconductor layer, said n-type semiconductor layer being an epitaxial layer to said p-type semiconductor layer, a p-type junction insulation in a frame-like arrangement for matrix formation adapted to divide said n-type semiconductor layer into pairs of different sized areas, each of said pairs being insulated from each other, said different sized areas being diffused in said n-type semiconductor layer, p-type areas, diffused in said pairs of different sized areas, said p-type areas having non-electrical connection to said ptype insulating frame, said p-type areAs, diffused in said pairs of different sized areas forming a pair of different sized diodes, the pairs of different sized p-type areas being connected with each other through a conducting layer, an insulating layer for covering the layers and areas mentioned hereinbefore, with the exception of said p-type areas, an optical element, the properties of which being variable by an electro-magnetical field applied, a first terminal being formed by said insulating layer and being electrically connected to said optical element a second terminal, being electrically connected to said optical element and being transparent, a plate being transparent and covering the entire matrix arrangement, and further conducting layers, being so arranged as to form columns and lines adapted to operate said optical element and for connecting the larger sized diode in parallel to said optical element, and the smaller sized diode in series to said optical element.''''
Claim 2
Dependent Claim
249 words
''''A two-dimensional matrix arrangement for operating optical elements, particularly for use in storages comprising a p-type semiconductor layer, an n-type semiconductor layer, said n-type semiconductor layer being an epitaxial layer to said p-type semiconductor layer, a p-type junction insulation in a frame-like arrangement for matrix formation adapted to divide said n-type semiconductor layer into pairs of different sized areas, each of said pairs being insulated from each other, said different sized areas being diffused in said n-type semiconductor layer, p-type areas, diffused in said pairs of different sized areas, said p-type areas having non-electrical connection to said ptype insulating frame, said p-type areAs, diffused in said pairs of different sized areas forming a pair of different sized diodes, the pairs of different sized p-type areas being connected with each other through a conducting layer, an insulating layer for covering the layers and areas mentioned hereinbefore, with the exception of said p-type areas, an optical element, the properties of which being variable by an electro-magnetical field applied, a first terminal being formed by said insulating layer and being electrically connected to said optical element a second terminal, being electrically connected to said optical element and being transparent, a plate being transparent and covering the entire matrix arrangement, and further conducting layers, being so arranged as to form columns and lines adapted to operate said optical element and for connecting the larger sized diode in parallel to said optical element, and the smaller sized diode in series to said optical element.''''
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |