US3305293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catadioptric optical system
Assignee: Applied Biosystems Inc
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Filing: 1963-03-20
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Granted: 1967-02-21
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Expires: 1983-03-20
Abstract
No abstract record available.
Inventors
- 👤 Offner Abe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:50
CPC Classifications
G; G02; G02B; G02B17/00; G02B17/08; G02B17/0884; G02B17/0804; G02B17/0808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A CATADIOPTRIC ANASTIGMATIC OPTICAL SYSTEM HAVING A RELATIVELY FLAT FIELD COMPRISING IN ALIGNMENT ALONG AN OPTICAL AXIS: A PRIMARY CONCAVE SPHERICAL MIRROR; A REFRACTIVE SPHERICAL SHELL POSITIONED IN FRONT OF SAID PRIMARY MIRROR AND HAVING ITS OUTER CONVEX SURFACE FACING THE REFLECTING CONCAVE SURFACE OF SAID PRIMARY MIRROR; SAID OUTER CONVEX SURFACE OF SAID SHELL BEING RENDERED REFLECTIVE IN ITS CENTRAL AREA SO AS TO ACT AS A SECONDARY CONVEX MIRROR TO RAYS OF LIGHT CONVERGED BY SAID PRIMARY CONCAVE MIRROR; THE TWO OPTICAL SURFACES OF SAID SHELL BEING PARTS OF SUBSTANTIALLY CONCENTRIC SPHERES SO THAT THE CENTERS OF CURVATURE OF SAID SURFACES ARE SUBSTANTIALLY AT A SINGLE COINCIDENT POINT; SAID REFRACTIVE SHELL BEING OF SUCH CONSTRUCTION AND OPTICAL MATERIAL AS TO SUBSTANTIALLY CORRECT THE COMBINED SPHERICAL ABERRATION OF SAID SPHERICAL PRIMARY MIRROR AND CENTRAL REFLECTING SURFACE OF SAID SHELL; AND A SINGLE FRONT REFRACTIVE ELEMENT, CONSISTING OF A SINGLE REFRACTIVE MATERIAL, OF RELATIVELY LOW POWER POSITIONED IN FRONT OF SAID SHELL; THE OPTICAL CENTER OF SAID REFRACTIVE ELEMENT BEING LOCATED SUBSTANTIALLY AT SAID SINGLE COINCIDENT POINT; THE DIOPTRIC POWER OF SAID REFRACTIVE SHELL, P, AND THE DIOPTRIC POWER OF SAID FRONT REFRACTIVE ELEMENT PC, ESSENTIALLY SATISFYING THE RELATION:
Claim 2
Dependent Claim
199 words
A CATADIOPTRIC ANASTIGMATIC OPTICAL SYSTEM HAVING A RELATIVELY FLAT FIELD COMPRISING IN ALIGNMENT ALONG AN OPTICAL AXIS: A PRIMARY CONCAVE SPHERICAL MIRROR; A REFRACTIVE SPHERICAL SHELL POSITIONED IN FRONT OF SAID PRIMARY MIRROR AND HAVING ITS OUTER CONVEX SURFACE FACING THE REFLECTING CONCAVE SURFACE OF SAID PRIMARY MIRROR; SAID OUTER CONVEX SURFACE OF SAID SHELL BEING RENDERED REFLECTIVE IN ITS CENTRAL AREA SO AS TO ACT AS A SECONDARY CONVEX MIRROR TO RAYS OF LIGHT CONVERGED BY SAID PRIMARY CONCAVE MIRROR; THE TWO OPTICAL SURFACES OF SAID SHELL BEING PARTS OF SUBSTANTIALLY CONCENTRIC SPHERES SO THAT THE CENTERS OF CURVATURE OF SAID SURFACES ARE SUBSTANTIALLY AT A SINGLE COINCIDENT POINT; SAID REFRACTIVE SHELL BEING OF SUCH CONSTRUCTION AND OPTICAL MATERIAL AS TO SUBSTANTIALLY CORRECT THE COMBINED SPHERICAL ABERRATION OF SAID SPHERICAL PRIMARY MIRROR AND CENTRAL REFLECTING SURFACE OF SAID SHELL; AND A SINGLE FRONT REFRACTIVE ELEMENT, CONSISTING OF A SINGLE REFRACTIVE MATERIAL, OF RELATIVELY LOW POWER POSITIONED IN FRONT OF SAID SHELL; THE OPTICAL CENTER OF SAID REFRACTIVE ELEMENT BEING LOCATED SUBSTANTIALLY AT SAID SINGLE COINCIDENT POINT; THE DIOPTRIC POWER OF SAID REFRACTIVE SHELL, P, AND THE DIOPTRIC POWER OF SAID FRONT REFRACTIVE ELEMENT PC, ESSENTIALLY SATISFYING THE RELATION:
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |