US3572893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steroscopic image display device
Assignee: United States Department of the Navy
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Filing: 1969-04-14
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Granted: 1971-03-30
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Expires: 1989-04-14
Abstract
Abstract An image display system for an aircraft having first and second fiber optic bundles connecting separate periscopes and projection lens and having a first mirror for reflecting images from said projection lens to a spherical mirror which reflects these images into the eyes of an observer.
Inventors
- 👤 Harold F Bennett
- 👤 Howard T Betz
- 👤 Ronald L Ohlhaber
- 👤 Donald A Pontarelli
- 👤 Arthur V Appel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:30
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G02B27/0101
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
122 words
A stereoscopic device for viewing a remote area comprising, first and second optical pickups oriented in the direction of said remote area, a first reflecting mirror, first and second projection lenses for projecting an image from said optical pickups to said first reflecting mirror, said first projection lens being optically coupled to said first optical pickup by a first fiber optic bundle, said second projection lens being optically coupled to said second optical pickup by a second fiber optic bundle, and an aspheric mirror positioned to receive images from said first reflecting mirror and reflect said images to first and second exit pupils whereby an observer can position his eyes near said exit pupils to obtain stereoscopic vision of said remote area.
Claim 2
Dependent Claim
122 words
A stereoscopic device for viewing a remote area comprising, first and second optical pickups oriented in the direction of said remote area, a first reflecting mirror, first and second projection lenses for projecting an image from said optical pickups to said first reflecting mirror, said first projection lens being optically coupled to said first optical pickup by a first fiber optic bundle, said second projection lens being optically coupled to said second optical pickup by a second fiber optic bundle, and an aspheric mirror positioned to receive images from said first reflecting mirror and reflect said images to first and second exit pupils whereby an observer can position his eyes near said exit pupils to obtain stereoscopic vision of said remote area.
Claim 3
Dependent Claim
23 words
A stereoscopic device for viewing a remote area as set forth in claim 1 wherein said first and second optical pickups are periscopes.
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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |