US3375361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical illumination system
Assignee: Recon Optical Inc
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Filing: 1965-11-10
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Granted: 1968-03-26
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Expires: 1985-11-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Thompson
- 👤 Theodore J Schulze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:42
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/05; F; F21; F21V; F21V17/00; G03B9/00; G03B9/08; G03B2215/00; G03B2215/05; G03B2215/0514; G03B2215/0517; G03B2215/0525; G03B2215/0528; G03B2215/0532
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
AN OPTICAL ILLUMINATION SYSTEM FOR USE WITH A SOURCE OF ELECTRICAL ENERGY AND A CAMERA OF FOCAL LENGTH F1, COMPRISING A CONCAVE PRINCIPAL REFLECTOR OF FOCAL LENGTH F, FORWARD REFLECTOR MEANS COMPRISING AT LEAST ONE CYLNDRICAL REFLECTOR ELEMENT OF LENGTH L POSITIONED FACING THE PRINCIPAL REFLECTOR AT A DISTANCE F FROM IT, SAID REFLECTOR ELEMENT BEING FURTHER LOCATED AT A DISTANCE L/2 FROM THE OPTICAL AXIS OF SAID PRINCIPAL RELECTOR AND ORIENTED TO BE PERPENDICULAR TO THE PLANE DEFINED BY SAID AXIS AND THE MIDPOINT OF SAID ELEMENT, SUPPORT MEANS FOR SECURING SAID FORWARD REFLECTOR MEANS TO SAID PRINCIPAL REFLECTOR, AND A STRAIGHT TUBULAR LIGHT SOURCE POSITIONED WITHIN EACH CYLINDRICAL REFLECTOR ELEMENT.
Claim 2
Dependent Claim
112 words
AN OPTICAL ILLUMINATION SYSTEM FOR USE WITH A SOURCE OF ELECTRICAL ENERGY AND A CAMERA OF FOCAL LENGTH F1, COMPRISING A CONCAVE PRINCIPAL REFLECTOR OF FOCAL LENGTH F, FORWARD REFLECTOR MEANS COMPRISING AT LEAST ONE CYLNDRICAL REFLECTOR ELEMENT OF LENGTH L POSITIONED FACING THE PRINCIPAL REFLECTOR AT A DISTANCE F FROM IT, SAID REFLECTOR ELEMENT BEING FURTHER LOCATED AT A DISTANCE L/2 FROM THE OPTICAL AXIS OF SAID PRINCIPAL RELECTOR AND ORIENTED TO BE PERPENDICULAR TO THE PLANE DEFINED BY SAID AXIS AND THE MIDPOINT OF SAID ELEMENT, SUPPORT MEANS FOR SECURING SAID FORWARD REFLECTOR MEANS TO SAID PRINCIPAL REFLECTOR, AND A STRAIGHT TUBULAR LIGHT SOURCE POSITIONED WITHIN EACH CYLINDRICAL REFLECTOR ELEMENT.
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) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |