Patent US3202039A successfully refreshed from Google Patents.
US3202039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical system for a color television camera
Assignee: US Philips Corp
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Filing: 1961-06-27
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Granted: 1965-08-24
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Expires: 1981-06-27
Abstract
No abstract record available.
Inventors
- 👤 Lang Hendrik De
- 👤 Bouwhuis Gijsbertus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:35
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/10; H04N23/13; H04N23/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
AN OPTICAL SYSTEM FOR A COLOR TELEVISION CAMERA HAVING A CAMERA TUBE FOR EACH OF A PLURALITY OF COMPONENT COLORS OF AN OBJECT COMPRISING AN OBJETIVE LENS AND BETWEEN THE OBJECTIVE LENS AND EACH TUBE A COLOR SEPARATING PRISM SYSTEM HAVING A NON-REFLECTING OPTICAL AXIS AND INCLUDING A PLURALITY OF PRISMS, SAID PRISMS BEING SEPARATED FROM ONE ANOTHER BY AN AIR SPACE BOUNDED BY SURFACES OF THE PRISMS WHICH INTERSECT THE NON-REFLECTING OPTICAL AXIS AND AT LEAST ONE OF SAID PRISMS BEING SEPARATED FROM SAID OBJECTIVE LENS BY AN AIR SPACE, A DICHROIC LAYER ADJACENT EACH OF SAID BOUNDING SURFACES AND INTERSECTING THE NON-REFLECTING OPTICAL AXIS, SAID BOUNDING SURFACES AND SAID DICHROIC LAYERS EACH FORMING ANGLES OF LESS THAN 30* WITH PLANES WHICH ARE AT RIGHT ANGLES TO THE NONREFLECTING OPTICAL AXIS, SAID PRISMS BEING SO POSITIONED
Claim 2
Dependent Claim
137 words
AN OPTICAL SYSTEM FOR A COLOR TELEVISION CAMERA HAVING A CAMERA TUBE FOR EACH OF A PLURALITY OF COMPONENT COLORS OF AN OBJECT COMPRISING AN OBJETIVE LENS AND BETWEEN THE OBJECTIVE LENS AND EACH TUBE A COLOR SEPARATING PRISM SYSTEM HAVING A NON-REFLECTING OPTICAL AXIS AND INCLUDING A PLURALITY OF PRISMS, SAID PRISMS BEING SEPARATED FROM ONE ANOTHER BY AN AIR SPACE BOUNDED BY SURFACES OF THE PRISMS WHICH INTERSECT THE NON-REFLECTING OPTICAL AXIS AND AT LEAST ONE OF SAID PRISMS BEING SEPARATED FROM SAID OBJECTIVE LENS BY AN AIR SPACE, A DICHROIC LAYER ADJACENT EACH OF SAID BOUNDING SURFACES AND INTERSECTING THE NON-REFLECTING OPTICAL AXIS, SAID BOUNDING SURFACES AND SAID DICHROIC LAYERS EACH FORMING ANGLES OF LESS THAN 30* WITH PLANES WHICH ARE AT RIGHT ANGLES TO THE NONREFLECTING OPTICAL AXIS, SAID PRISMS BEING SO POSITIONED
References Cited (Backward Citations)
US2672072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |