US3126446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for optical focusing
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
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Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:00
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/40; H; H04; H04N; H04N23/00; H04N23/10; H04N23/13; H04N23/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
AN OPTICAL SYSTEM COMPRISING AN OBJECTIVE LENS IN FIXED LONGITUDINAL POSITION WITH RESPECT TO AN IMAGE PLANE, TWO IMAGE RELAY LENSES LOCATED IN THE LIGHT PATH BETWEEN SAID OBJECTIVE LENS AND SAID IMAGE PLANE, A FIELD LENS LOCATED IN SAID PATH BETWEEN SAID OBJECTIVE AND RELAY LENSES, AND MEANS FOR SIMULTANEOUSLY MOVING SAID FIELD LENS AND THE ONE OF SAID RELAY LENSES NEAREST SAID FIELD LENS AXIALLY IN LIKE DIRECTION AND MAGNITUDE ALONG SAID PATH TO FOCUS SAID SYSTEM.
Claim 2
Dependent Claim
79 words
AN OPTICAL SYSTEM COMPRISING AN OBJECTIVE LENS IN FIXED LONGITUDINAL POSITION WITH RESPECT TO AN IMAGE PLANE, TWO IMAGE RELAY LENSES LOCATED IN THE LIGHT PATH BETWEEN SAID OBJECTIVE LENS AND SAID IMAGE PLANE, A FIELD LENS LOCATED IN SAID PATH BETWEEN SAID OBJECTIVE AND RELAY LENSES, AND MEANS FOR SIMULTANEOUSLY MOVING SAID FIELD LENS AND THE ONE OF SAID RELAY LENSES NEAREST SAID FIELD LENS AXIALLY IN LIKE DIRECTION AND MAGNITUDE ALONG SAID PATH TO FOCUS SAID SYSTEM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |