US4786149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for optical image processing
Assignee: Siemens AG
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Filing: 1987-05-20
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Granted: 1988-11-22
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Expires: 2007-05-20
Abstract
Abstract For electro-optical image conversion as well as for optical image processing by spatial filtering, a two-dimensional optical filter is provided which comprises a microstructured grid, the openings of which are designed as a matrix of windows, the windows being provided with electrostatically movable thin-film closures. The window openings are controlled by electrostatic charges which are provided by an electron beam. This matrix of light valves can preferably be used as a electro-optical converter as well as a Fourier filter in an optical computer.
Inventors
- 👤 Eckhardt Hoenig
- 👤 Burkhard Lischke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:50
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/42; G02B27/46; G02B26/00; G02B26/02; G06; G06E; G06E3/00; G06E3/001; G06E3/005
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
63 words
An arrangement for optical image processing by spatial filtering, particularly for converting electronic image information into optical image information and for Fourier transformation, comprising a two-dimensional optical filter comprising a microstructured grid having windows, the windows being provided with electrostatically movable thin-film terminations, and further comprising electron beam means for controlling the position of the thin-film terminations thereby opening and closing the windows.
Claim 2
Dependent Claim
63 words
An arrangement for optical image processing by spatial filtering, particularly for converting electronic image information into optical image information and for Fourier transformation, comprising a two-dimensional optical filter comprising a microstructured grid having windows, the windows being provided with electrostatically movable thin-film terminations, and further comprising electron beam means for controlling the position of the thin-film terminations thereby opening and closing the windows.
Claim 3
Dependent Claim
69 words
The arrangement recited in claim 1, wherein the grid comprises a carrier provided with a microstructured matrix of window openings having thin-film closures, said thin film closures comprising metal film means which are connected to ribs of the windows in an electrically insulating manner and being arranged self-supportingly above the opening of the windows and being movable by electrostatic charging in the direction of a normal to the film.
Claim 4
Dependent Claim
13 words
The arrangement recited in claim 2, wherein the films comprise amorphous metal films.
Claim 5
Dependent Claim
24 words
The arrangement recited in claim 1, wherein the filter is associated with an electrostatic auxiliary grid for controlling the total opening of the windows.
References Cited (Backward Citations)
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US3886310A
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US3977771A
Cited
US4182623A
Cited
US4235522A
Cited
US4351589A
Cited
US4698602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-22 | 1992-05-23 | 1992-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-22 | 1996-05-23 | 1996-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-22 | 2000-05-23 | 2000-11-22 | $7700.00 | Window Closed / Lapsed |