Patent US3271575A successfully refreshed from Google Patents.
US3271575A
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Catoptric radiometric detector
Assignee: Barnes Engineering Co
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Filing: 1961-12-04
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Granted: 1966-09-06
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Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Falbel Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:58
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/12; G01; G01J; G01J1/00; G01J1/02; G01J1/04; G01J1/0407; G01J1/0411; G01J1/0414; G01J1/0422; G02B17/00; G02B17/02; G02B17/06; G02B17/0605; G02B17/061; G02B17/08; G02B17/0852
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN INSTRUMENT FOR DETECTING OPTICAL RADIATION FROM TARGETS COMPRISING IN COMBINATION AND IN OPTICAL ALIGNMENT, (A) OPTICAL IMAGING MEANS POSITIONED TO PRODUCE A REAL IMAGE OF THE TARGETS SUBSTANTIALLY IN THE FOCAL PLANE OF THE IMAGING MEANS, (B) A TRUNCATED CONE IN THE OPTICAL PATH BETWEEN THE OPTICAL IMAGING MEANS AND THE FOCAL PLANE, THE INNER SURFACE OF SAID CONE BEING REFLECTIVE AT THE WAVELENGTH OF THE RADIATION TO BE DETECTED, (C) A RADIATION DETECTING ELEMENT MOUNTED AT THE TRUNCATED END OF THE CONE, (D) THE CONE ANGLE AND CONE LOCATION BEING SUCH THAT THE CONE APEX, IF THE CONE HAD NOT BEEN TRUNCATED, WOULD BE LOCATED IN THE FOCAL PLANE, AND (E) THE TRUNCATION BEING CHOSEN SO THAT THE DIAMETER OF A CIRCLE CIRCUMSCRIBED ABOUT AN IMAGE POLYGON CENTERED AT THE POINT IN THE FOCAL PLANE WHERE THE
Claim 2
Dependent Claim
139 words
AN INSTRUMENT FOR DETECTING OPTICAL RADIATION FROM TARGETS COMPRISING IN COMBINATION AND IN OPTICAL ALIGNMENT, (A) OPTICAL IMAGING MEANS POSITIONED TO PRODUCE A REAL IMAGE OF THE TARGETS SUBSTANTIALLY IN THE FOCAL PLANE OF THE IMAGING MEANS, (B) A TRUNCATED CONE IN THE OPTICAL PATH BETWEEN THE OPTICAL IMAGING MEANS AND THE FOCAL PLANE, THE INNER SURFACE OF SAID CONE BEING REFLECTIVE AT THE WAVELENGTH OF THE RADIATION TO BE DETECTED, (C) A RADIATION DETECTING ELEMENT MOUNTED AT THE TRUNCATED END OF THE CONE, (D) THE CONE ANGLE AND CONE LOCATION BEING SUCH THAT THE CONE APEX, IF THE CONE HAD NOT BEEN TRUNCATED, WOULD BE LOCATED IN THE FOCAL PLANE, AND (E) THE TRUNCATION BEING CHOSEN SO THAT THE DIAMETER OF A CIRCLE CIRCUMSCRIBED ABOUT AN IMAGE POLYGON CENTERED AT THE POINT IN THE FOCAL PLANE WHERE THE
References Cited (Backward Citations)
DE227346C
Cited
US2788708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |