US3555987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Focal plane shutter system
Assignee: Individual
•
Filing: 1968-02-07
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Granted: 1971-01-19
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Expires: 1988-02-07
Abstract
Abstract A focal plane shutter system is disclosed wherein an electrically controlled high-speed ceramic lattice shutter array is interposed between first and second lens mosaics whereby light from an object incident on the first lens mosaic through a field lens is focused in the form of a plurality of image fragments on the ceramic lattice shutter array for high-speed shuttering and selective transmission therethrough and wherein the selectively transmitted light is focused by the second lens mosaic to form a reconstituted image on a film plane. The second lens mosaic may be eliminated and the film plane placed immediately adjacent the ceramic lens shutter array when light from an object incident on the first lens mosaic is focused to a plurality of intense spots representative of the image rather than to a plurality of image fragments.
Inventors
- 👤 Iben Browning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:49
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/03; G02F1/055; G02F1/0556; G02F1/0551; G03; G03B; G03B9/00; G03B9/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
144 words
A focal plane shutter system comprising: a first lens mosaic adapted to form a plurality of image fragments from an image incident thereon in a plane spaced from said lens mosaic; a ceramic lattice shutter array comprising a plate of ferroelectric ceramic material having an anisotropic optical response while polarized and a plurality of electrodes across the surface of said plate for externally applying electric polarizing fields to localized portions of the plate, said ceramic lattice being positioned in the image plane of said first lens mosaic, a second lens mosaic spaced from said ceramic lattice on the side opposite said first lens mosaic and adapted to receive light transmitted through the ceramic lattice and focus said light to form a reconstituted image in a plane spaced from said second lens mosaic; and control means for electrically controlling the electrodes of the ceramic lattice.
Claim 2
Dependent Claim
144 words
A focal plane shutter system comprising: a first lens mosaic adapted to form a plurality of image fragments from an image incident thereon in a plane spaced from said lens mosaic; a ceramic lattice shutter array comprising a plate of ferroelectric ceramic material having an anisotropic optical response while polarized and a plurality of electrodes across the surface of said plate for externally applying electric polarizing fields to localized portions of the plate, said ceramic lattice being positioned in the image plane of said first lens mosaic, a second lens mosaic spaced from said ceramic lattice on the side opposite said first lens mosaic and adapted to receive light transmitted through the ceramic lattice and focus said light to form a reconstituted image in a plane spaced from said second lens mosaic; and control means for electrically controlling the electrodes of the ceramic lattice.
Claim 3
Dependent Claim
73 words
The focal plane shutter system of claim 1 with each of the lenses of said first lens mosaic constructed and positioned to form an image of the image fragment incident thereon on only a portion of said plate in between said electrodes and each of the lenses of said second lens mosaic constructed and positioned to form a reconstituted image of only the light transmitted through the ceramic lattice in between said electrodes.
Claim 4
Dependent Claim
39 words
A focal plane shutter system as set forth in claim 1 wherein there is further provided an objective lens and a field lens spaced from the objective lens for focusing light from an object on said first lens mosaic.
Claim 5
Dependent Claim
29 words
A focal plane shutter system as set forth in claim 1 wherein there is further provided a photographic film plane in the image plane of said second lens mosaic.
Claim 6
Dependent Claim
121 words
A focal plane shutter system comprising: a lens mosaic adapted to focus light incident thereon to a plurality of intense spots representative of the light incident on said lens mosaic in a plane spaced from said lens mosaic; a ceramic lattice shutter array comprising a plate of ferroelectric ceramic material having an anisotropic optical response when polarized and a plurality of electrodes positioned across the area of said plate for externally applying electric polarizing fields to localized portions of the plate, said ceramic lattice being positioned in the image plane of said lens mosaic; and control means for electrically controlling the electrodes of said ceramic lattice for shuttering and selectively transmitting the spots of light incident thereon from said lens mosaic.
Claim 7
Dependent Claim
121 words
A focal plane shutter system comprising: a lens mosaic adapted to focus light incident thereon to a plurality of intense spots representative of the light incident on said lens mosaic in a plane spaced from said lens mosaic; a ceramic lattice shutter array comprising a plate of ferroelectric ceramic material having an anisotropic optical response when polarized and a plurality of electrodes positioned across the area of said plate for externally applying electric polarizing fields to localized portions of the plate, said ceramic lattice being positioned in the image plane of said lens mosaic; and control means for electrically controlling the electrodes of said ceramic lattice for shuttering and selectively transmitting the spots of light incident thereon from said lens mosaic.
Claim 8
Dependent Claim
29 words
A focal plane shutter system as set forth in claim 5 wherein there is further provided an objective lens for focusing light from an object onto said lens mosaic.
Claim 9
Dependent Claim
27 words
A focal plane shutter system as set forth in claim 5 wherein there is further provided a photographic film in the image plane of said lens mosaic.
Claim 10
Dependent Claim
92 words
A focal plane shutter system as set forth in claim 5 wherein there is a photographic film mounted in the image plane of said lens mosaic, said photographic film being mounted for advancement across the image plane of said lens mosaic and wherein said lens mosaic is oriented with respect to the direction of advancement of said film whereby the exposure streak on said film produced by any lens of the lens mosaic is substantially nonoverlapping with the exposure streaks on said film produced by any other lenses of the lens mosaic.
Claim 11
Dependent Claim
138 words
A focal plane shutter system comprising: a lens mosaic adapted to focus light incident thereon to a plurality of intense spots representative of the light incident on said lens mosaic in a plane spaced from said lens mosaic; a ceramic lattice shutter array comprising a plate of ferroelectric ceramic material having an anisotropic optical response when polarized and a plurality of electrodes positioned across the area of said plate for externally applying electric polarizIng fields to localized portions of the plate, said ceramic lattice being positioned with respect to said lens mosaic to focus substantially all the focused spots of light on portions of the plate intermediate the plurality of electrodes; and control means for electrically controlling the electrodes of said ceramic lattice for shuttering and selectively transmitting the spots of light incident thereon from said lens mosaic.
Claim 12
Dependent Claim
138 words
A focal plane shutter system comprising: a lens mosaic adapted to focus light incident thereon to a plurality of intense spots representative of the light incident on said lens mosaic in a plane spaced from said lens mosaic; a ceramic lattice shutter array comprising a plate of ferroelectric ceramic material having an anisotropic optical response when polarized and a plurality of electrodes positioned across the area of said plate for externally applying electric polarizIng fields to localized portions of the plate, said ceramic lattice being positioned with respect to said lens mosaic to focus substantially all the focused spots of light on portions of the plate intermediate the plurality of electrodes; and control means for electrically controlling the electrodes of said ceramic lattice for shuttering and selectively transmitting the spots of light incident thereon from said lens mosaic.
Claim 13
Dependent Claim
30 words
A focal plane shutter system as set forth in claim 9 wherein a screen is positioned next to the ceramic lattice shutter array on the side opposite the lens mosaic.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |