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US3883883A Expired / Lapsed US ⏱️ 0.0 years remaining

Remote control device for camera

Assignee: Canon Inc
•
Filing: 1973-09-20
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Granted: 1975-05-13
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Expires: 1993-09-20
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Abstract

Abstract The image pick up optics and the image pick up tube of an image pick up device, such as a television camera are arranged so that they are opposed to the eye piece of the view finder of a photographic camera. The optical axes of the viewfinder and of the image pick up optics are coaxially aligned. The image pick up optics includes a distance defining ring which is releasably coupled to a fixed ring at a position, of the distance defining ring, in which the image of the object, provided by the image pick up optics, is formed on the light receiving plane of an image pick up tube of the image pick up device. A television monitor is connected to the image pick up device, and a distance defining ring of the photographic camera is operable by a driving source remotely controlled from the monitor.

Inventors

  • 👤 Yozo Sano
  • 👤 Sadahiko Tsuji
  • 👤 Yukio Mashimo
  • 👤 Masaharu Ito

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 16:55
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/38

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 287 words
A remote control photographing system comprising, in combination, a photographic camera having a viewfinder optical system including a photographing lens providing an image of a scene at a focusing plane; an image pick up device having an image pick up optical system including a distance adjusting means, for setting the distance of said image pick up optical system, and having an image pick up tube including a photosensitive plane for forming an image of a scene viewed by said image pick up optical system; displacement means operable to displace said image pick up device between a first position, in which the optical axis of said image pick up optical system is aligned with the optical axis of said viewfinder optical system for viewing of the image in the focusing plane of said viewfinder optical system, and a second position in which the optical axis of said image pick up system is out of alignment with that of said viewfinder optical system for direct viewing of a scene by said image pick up optical system; locking means operable to releasably latch said distance adjusting means at the shortest distance setting in which the image in the focusing plane of said viewfinder optical system is focused on the photosensitive plane of said pick up tube with said image pick up device in said first position; release means operable to release said locking means responsive to displacement of said image pick up device to said second position by said displacement means; and a television monitor connected to said image pick up tube and operable to display the image formed on said photosensitive plane, said television monitor including selectively operable operative means controlling said distance adjusting means and said displacement means.
Claim 2
Dependent Claim 287 words
A remote control photographing system comprising, in combination, a photographic camera having a viewfinder optical system including a photographing lens providing an image of a scene at a focusing plane; an image pick up device having an image pick up optical system including a distance adjusting means, for setting the distance of said image pick up optical system, and having an image pick up tube including a photosensitive plane for forming an image of a scene viewed by said image pick up optical system; displacement means operable to displace said image pick up device between a first position, in which the optical axis of said image pick up optical system is aligned with the optical axis of said viewfinder optical system for viewing of the image in the focusing plane of said viewfinder optical system, and a second position in which the optical axis of said image pick up system is out of alignment with that of said viewfinder optical system for direct viewing of a scene by said image pick up optical system; locking means operable to releasably latch said distance adjusting means at the shortest distance setting in which the image in the focusing plane of said viewfinder optical system is focused on the photosensitive plane of said pick up tube with said image pick up device in said first position; release means operable to release said locking means responsive to displacement of said image pick up device to said second position by said displacement means; and a television monitor connected to said image pick up tube and operable to display the image formed on said photosensitive plane, said television monitor including selectively operable operative means controlling said distance adjusting means and said displacement means.
Claim 3
Dependent Claim 44 words
A remote control photographing system, as claimed in claim 1, wherein said photographing lens of said viewfinder optical system of said photographic camera is a zoom lens having a zoom ring; said television monitor including further selectively operable operative means controlling said zoom ring.
Claim 4
Dependent Claim 51 words
A remote control photographing system, as claimed in claim 2, in which said zoom lens of said viewfinder optical system includes a distance adjusting ring for adjusting the distance of said zoom lens; said television monitor further including selectively operable operative means controlling said distance adjusting ring of said zoom lens.
Claim 5
Dependent Claim 66 words
A remote control photographing system, as claimed in claim 1, in which said image pick up optical system includes an image pick up lens having an entrance pupil; said viewfinder optical system including an eye point; said entrance pupil, in said first position of said image pick up device, being located on the optical axis of said viewfinder optical system with +5mm of said eye point.
Claim 6
Dependent Claim 37 words
A remote control photographing system, as claimed in claim 4, in which said viewfinder oPtical system includes a condenser lens and an eye piece, the optics of said image pick up optical system satisfying the following conditions:

References Cited (Backward Citations)

US2782253A Cited
US2838600A Cited
US2981791A Cited
US2968215A Cited
US3258531A Cited
US3198883A Cited
US3435136A Cited
US3364815A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-05-12 1978-11-11 1979-05-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-05-12 1982-11-11 1983-05-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-05-12 1986-11-11 1987-05-13 $7700.00 Window Closed / Lapsed

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