Patent US3255304A successfully refreshed from Google Patents.
US3255304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alignment of television camera
Assignee: RCA Corp
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Filing: 1962-03-29
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Granted: 1966-06-07
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Expires: 1982-03-29
Abstract
No abstract record available.
Inventors
- 👤 Sidney L Bendell
- 👤 Robert A Dischert
- 👤 William J Cosgrove
- 👤 Henry N Kozanowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:19
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/10; H04N23/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
IN A COLOR TELEVISION CAMERA COMPRISING A LUMINANCE SIGNAL PICKUP TUBE RESPONSIVE TO ALL COLOR COMPONENTS OF LIGHT ADMITTED TO THE CAMERA AND A PLURALITY OF CHROMINANCE SIGNAL PICKUP TUBES RESPECTIVELY RESPONSIVE TO SELECTED COLOR COMPONENTS OF LIGHT ADMITTED TO THE CAMERA, AND A CATHODE RAY TUBE VIEW FINDER ADAPTED FOR RESPONSE TO SIGNALS FROM ANY SELECTED ONE OF SAID PICKUP TUBES, APPARATUS FOR ADJUSTING SAID CAMERA FOR OPERATION COMPRISING IN COMBINATION: MEANS INCLUDING CALIBRATING PULSES OF SELECTED AMPLITUDE TO PRODUCE A STANDARDIZING LIGHT BAR ON SAID VIEW FINDER SCREEN REPRESENTATIVE OF A STANDARD INTENSITY OF SUBSTANTIALLY WHITE LIGHT; MEANS TO PRODUCE AN INPUT LIGHT BAR ON SAID VIEW FINDER SCREEN REPRESENTATIVE OF THE INTENSITY OF LIGHT ADMITTED TO SAID CAMERA; MEANS INCLUDING SIGNALS DERIVED RESPECTIVELY FROM SAID PICKUP TUBES TO PRODUCE AN OUTPUT SIGNAL LIGHT BAR ON SAID VIEW FINDER SCREEN REPRESENTATIVE OF THE LIGHT IMPINGING UPON SAID RESPECTIVE TUBES; MEANS FOR CONTROLLING THE LIGHT ADMITTED TO THE CAMERA THAT SAID INPUT LIGHT BAR IS EQUAL IN INTENSITY TO SAID STANDARDIZING LIGHT BAR; AND MEANS FOR SEPARATELY ADJUSTING THE AMPLITUDE OF THE OUTPUT SIGNALS DERIVED FROM SAID RESPECTIVE PICKUP TUBES SO THAT SAID OUTPUT SIGNAL LIGHT BAR IS EQUAL IN INTENSITY TO SAID STANDARDIZING AND INPUT LIGHT BARS.
Claim 2
Dependent Claim
209 words
IN A COLOR TELEVISION CAMERA COMPRISING A LUMINANCE SIGNAL PICKUP TUBE RESPONSIVE TO ALL COLOR COMPONENTS OF LIGHT ADMITTED TO THE CAMERA AND A PLURALITY OF CHROMINANCE SIGNAL PICKUP TUBES RESPECTIVELY RESPONSIVE TO SELECTED COLOR COMPONENTS OF LIGHT ADMITTED TO THE CAMERA, AND A CATHODE RAY TUBE VIEW FINDER ADAPTED FOR RESPONSE TO SIGNALS FROM ANY SELECTED ONE OF SAID PICKUP TUBES, APPARATUS FOR ADJUSTING SAID CAMERA FOR OPERATION COMPRISING IN COMBINATION: MEANS INCLUDING CALIBRATING PULSES OF SELECTED AMPLITUDE TO PRODUCE A STANDARDIZING LIGHT BAR ON SAID VIEW FINDER SCREEN REPRESENTATIVE OF A STANDARD INTENSITY OF SUBSTANTIALLY WHITE LIGHT; MEANS TO PRODUCE AN INPUT LIGHT BAR ON SAID VIEW FINDER SCREEN REPRESENTATIVE OF THE INTENSITY OF LIGHT ADMITTED TO SAID CAMERA; MEANS INCLUDING SIGNALS DERIVED RESPECTIVELY FROM SAID PICKUP TUBES TO PRODUCE AN OUTPUT SIGNAL LIGHT BAR ON SAID VIEW FINDER SCREEN REPRESENTATIVE OF THE LIGHT IMPINGING UPON SAID RESPECTIVE TUBES; MEANS FOR CONTROLLING THE LIGHT ADMITTED TO THE CAMERA THAT SAID INPUT LIGHT BAR IS EQUAL IN INTENSITY TO SAID STANDARDIZING LIGHT BAR; AND MEANS FOR SEPARATELY ADJUSTING THE AMPLITUDE OF THE OUTPUT SIGNALS DERIVED FROM SAID RESPECTIVE PICKUP TUBES SO THAT SAID OUTPUT SIGNAL LIGHT BAR IS EQUAL IN INTENSITY TO SAID STANDARDIZING AND INPUT LIGHT BARS.
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |