US3071875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for correcting parallax
Assignee: General Precision Inc
•
Filing: 1959-02-12
•
Granted: 1963-01-08
•
Expires: 1979-02-12
Abstract
No abstract record available.
Inventors
- 👤 Harold S Hemstreet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:35
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/30; G09B9/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A VISUAL DISPLAY SYSTEM FOR FLIGHT SIMULATOR APPARATUS FOR CORRECTING PERSPECTIVE IN AN IMAGE HAVING ITS HORIZON PROJECTED PERPENDICULAR TO A SCREEN TILTED FROM THE VERTICAL BUT HAVING ITS HORIZON VIEWED ALONG A HORIZONTAL LINE OF SIGHT WHICH FORMS AN ACUTE ANGLE WITH SAID SCREEN, COMPRISING MEANS FOR MODIFYING THE IMAGE TO BE PROJECTED INCLUDING MEANS TO PARALLELLY SHIFT THE AXIS OF THE CAMERA WHICH PROVIDES SAID IMAGE AND THE AXIS OF THE OPTICAL SYSTEM OF SAID CAMERA OUT OF ALIGNMENT WITH EACH OTHER, AND MEANS CONTROLLING THE AIMING MEANS OF SAID CAMERA IN ACCORDANCE WITH THE AMOUNT OF SAID SHIFT.
Claim 2
Dependent Claim
102 words
IN A VISUAL DISPLAY SYSTEM FOR FLIGHT SIMULATOR APPARATUS FOR CORRECTING PERSPECTIVE IN AN IMAGE HAVING ITS HORIZON PROJECTED PERPENDICULAR TO A SCREEN TILTED FROM THE VERTICAL BUT HAVING ITS HORIZON VIEWED ALONG A HORIZONTAL LINE OF SIGHT WHICH FORMS AN ACUTE ANGLE WITH SAID SCREEN, COMPRISING MEANS FOR MODIFYING THE IMAGE TO BE PROJECTED INCLUDING MEANS TO PARALLELLY SHIFT THE AXIS OF THE CAMERA WHICH PROVIDES SAID IMAGE AND THE AXIS OF THE OPTICAL SYSTEM OF SAID CAMERA OUT OF ALIGNMENT WITH EACH OTHER, AND MEANS CONTROLLING THE AIMING MEANS OF SAID CAMERA IN ACCORDANCE WITH THE AMOUNT OF SAID SHIFT.
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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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |