US4900914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide-angle viewing window with a plurality of optical structures
Assignee: Carl Zeiss AG
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Filing: 1988-05-25
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Granted: 1990-02-13
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Expires: 2008-05-25
Abstract
Abstract The invention is directed to a viewing window having a wide-angle view. This window is realized by subdividing the space to be viewed into sectors which requires the utilization of several different prismatic bodies.
Inventors
- 👤 Horst Raff
- 👤 Rolf Traeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:32
CPC Classifications
G; G02; G02B; G02B3/00; G02B3/02; G02B3/08; G02B13/00; G02B13/06; G02B13/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
106 words
A viewing window for detecting radiation within a wide-angle region entering through the window, the viewing window comprising: a plurality of optical structures defining respective different individual prisms for receiving said radiation; said prisms being arranged in a planar array and defining respective entrance angles for said radiation with said angles being different for every viewing angle; detector means defining a plurality of discrete areas for receiving respective images thereon; and, a plurality of imaging units arranged behind respective ones of said prisms so as to permit each of said imaging units to image the prism corresponding thereto onto a selected one of said discrete areas.
Claim 2
Dependent Claim
106 words
A viewing window for detecting radiation within a wide-angle region entering through the window, the viewing window comprising: a plurality of optical structures defining respective different individual prisms for receiving said radiation; said prisms being arranged in a planar array and defining respective entrance angles for said radiation with said angles being different for every viewing angle; detector means defining a plurality of discrete areas for receiving respective images thereon; and, a plurality of imaging units arranged behind respective ones of said prisms so as to permit each of said imaging units to image the prism corresponding thereto onto a selected one of said discrete areas.
Claim 3
Dependent Claim
68 words
The viewing window of claim 1, said prisms being first prisms; a plurality of second prisms arranged behind corresponding ones of said first prisms to form a plurality of pairs of prisms; and, said imaging units being a plurality of optical members disposed between the two prisms of each of said pairs of prisms, respectively, for focusing the rays of the radiation corresponding to the pair of prisms.
Claim 4
Dependent Claim
62 words
The viewing window of claim 1, said detector means being photosensitive detector means; and, said wide-angle region being subdivided into a plurality of component solid-angle regions of radiation corresponding to respective ones of said prisms; and, each of said units including a plurality of objectives for imaging the radiation of the corresponding solid-angle region onto the selected one of said discrete areas.
Claim 5
Dependent Claim
16 words
The viewing window of claim 3, each of said objectives including at least one converging lens.
Claim 6
Dependent Claim
18 words
The viewing window of claim 1, said prisms conjointly defining a flat surface facing toward said wide-angle region.
Claim 7
Dependent Claim
21 words
The viewing window of claim 5, comprising a protective window disposed in front of said flat surface defined by said prisms.
Claim 8
Dependent Claim
42 words
The viewing window of claim 6, said prisms having respective surfaces for receiving said radiation and for defining said flat surface, said surfaces of said prisms and said protective window conjointly defining a space therebetween; and, fluid means disposed in said space.
Claim 9
Dependent Claim
23 words
The viewing window of claim 1, said prisms being mounted so as to cause said individual regions to be arranged as a matrix.
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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) | 1993-02-12 | 1993-08-14 | 1994-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-12 | 1997-08-14 | 1998-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-12 | 2001-08-14 | 2002-02-13 | $7700.00 | Window Closed / Lapsed |