US3309162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical high speed adjustable focusing zone plate
Assignee: International Business Machines Corp
•
Filing: 1963-06-28
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Granted: 1967-03-14
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Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
- 👤 Kurt M Kosanke
- 👤 Werner W Kulcke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:54
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/23; G02B; G02B5/00; G02B5/18; G02B5/1876; G02F1/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
AN ADJUSTABLE FOCUSING SYSTEM COMPRISING: A SOURCE OF COLLIMATED, HIGH FREQUENCY ELECTROMAGNETIC RADIATION, AN ELECTRO-OPTIC SUBSTANCE WHICH WILL EXHIBIT A BIREFRINGENT ELECTRO-OPTIC EFFECT AT POINTS DISPLACED FROM THE CENTER OF AN ELECTRIC FIELD A DISTANCE PROPORTIONAL TO THE MAGNITUDE OF THE ELECTRIC FIELD, ELECTRIC POTENTIAL MEANS TO IMPRESS AN ELECTRIC FIELD IN A PATTERN ACROSS SAID ELECTRO-OPTIC SUBSTANCE AT SUCH LOCATIONS AND OF SUCH MAGNITUDE THAT BIREFRINGENT EFFECTS OCCUR WHICH DEFINE A FIRST FRESNEL ZONE PLATE TO SAID RADIATION, AND MEANS TO VARY SAID ELECTRIC FIELD PATTERN SO THAT THE BIREFRINGENT EFFECTS DEFINE A SECOND FRESNEL ZONE PLATE TO SAID RADIATION WHICH CAUSES FOCUSING AT A POINT DIFFERENT FROM SAID FIRST FRESNEL ZONE PLATE.
Claim 2
Dependent Claim
114 words
AN ADJUSTABLE FOCUSING SYSTEM COMPRISING: A SOURCE OF COLLIMATED, HIGH FREQUENCY ELECTROMAGNETIC RADIATION, AN ELECTRO-OPTIC SUBSTANCE WHICH WILL EXHIBIT A BIREFRINGENT ELECTRO-OPTIC EFFECT AT POINTS DISPLACED FROM THE CENTER OF AN ELECTRIC FIELD A DISTANCE PROPORTIONAL TO THE MAGNITUDE OF THE ELECTRIC FIELD, ELECTRIC POTENTIAL MEANS TO IMPRESS AN ELECTRIC FIELD IN A PATTERN ACROSS SAID ELECTRO-OPTIC SUBSTANCE AT SUCH LOCATIONS AND OF SUCH MAGNITUDE THAT BIREFRINGENT EFFECTS OCCUR WHICH DEFINE A FIRST FRESNEL ZONE PLATE TO SAID RADIATION, AND MEANS TO VARY SAID ELECTRIC FIELD PATTERN SO THAT THE BIREFRINGENT EFFECTS DEFINE A SECOND FRESNEL ZONE PLATE TO SAID RADIATION WHICH CAUSES FOCUSING AT A POINT DIFFERENT FROM SAID FIRST FRESNEL ZONE PLATE.
References Cited (Backward Citations)
US3067413A
Cited
US3227034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |