US4259688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
TV camera
Assignee: Canon Inc
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Filing: 1979-06-04
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Granted: 1981-03-31
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Expires: 1999-06-04
Abstract
Abstract A TV camera which can detect any object distance. The image pick-up surface of the TV camera is divided into an object image forming surface and a range finding image forming surface. The object distance can be detected by reading the range finding image.
Inventors
- 👤 Mitsuhiro Tokuhara
- 👤 Tetsuo Sueda
- 👤 Kazuo Tanaka
- 👤 Ryusho Hirose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:47
CPC Classifications
G; G01; G01C; G01C3/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
A TV camera comprising: an image pick-up device for forming an image of an object for TV display on an object image forming portion of the image pick-up screen of the image pick-up device, and a range finding optical system for forming a range finding image of said object, including information of the distance between said object and the TV camera, on a range finding image forming portion of said image pick-up screen, said range finding image forming portion being in non-overlapping disposition with respect to said object image forming portion.
Claim 2
Dependent Claim
91 words
A TV camera comprising: an image pick-up device for forming an image of an object for TV display on an object image forming portion of the image pick-up screen of the image pick-up device, and a range finding optical system for forming a range finding image of said object, including information of the distance between said object and the TV camera, on a range finding image forming portion of said image pick-up screen, said range finding image forming portion being in non-overlapping disposition with respect to said object image forming portion.
Claim 3
Dependent Claim
17 words
The TV camera according to claim 1, wherein said image pick-up device includes an image pick-up tube.
Claim 4
Dependent Claim
18 words
The TV camera according to claim 1, wherein said image pick-up device includes a solid image pick-up element.
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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |