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US4728973A Expired / Lapsed US ⏱️ 0.0 years remaining

Camera on which a front converter can be mounted

Assignee: Minolta Co Ltd
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Filing: 1987-06-02
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Granted: 1988-03-01
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Expires: 2007-06-02
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Abstract

Abstract A camera on which a front converter can be mounted and wherein a picture image of a high quality over an entire picture plane can be obtained and an aperture of a front converter can be reduced while a photographing magnification of the camera can be increased without the necessity of much expense. The camera comprises trimming designating means for designating a trimming condition in which an area smaller than a normal photograph area is printed. Upon operation of the trimming designating means, encoding means operates to encode a trimming signal on a film so as to designate the trimming condition upon printing from the film. When a front converter is mounted on the camera, judging means detects this, and controlling means thereupon operates the trimming designating means to designate the trimming condition.

Inventors

  • 👤 Nobuyuki Taniguchi
  • 👤 Takeo Hoda
  • 👤 Yoshiaki Hata
  • 👤 Yoshinobu Kudo
  • 👤 Manabu Inoue
  • 👤 Hiroshi Ueda

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 13:00
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/04; G03B19/07; G03B17/00; G03B17/02; G03B17/12

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 100 words
A camera on which a front converter can be mounted, comprising: judging means for judging whether or not a front converter is mounted on said camera; trimming designating means for designating a trimming condition in which an area smaller than a normal photograph area is printed; encoding means operable in response to operation of said trimming designating means for encoding a trimming signal indicative of the trimming condition on a film; and controlling means operable when said judging means judges that a front converter is mounted on said camera for operating said trimming designating means to designate the trimming condition.
Claim 2
Dependent Claim 100 words
A camera on which a front converter can be mounted, comprising: judging means for judging whether or not a front converter is mounted on said camera; trimming designating means for designating a trimming condition in which an area smaller than a normal photograph area is printed; encoding means operable in response to operation of said trimming designating means for encoding a trimming signal indicative of the trimming condition on a film; and controlling means operable when said judging means judges that a front converter is mounted on said camera for operating said trimming designating means to designate the trimming condition.
Claim 3
Dependent Claim 48 words
A camera as claimed in claim 1, wherein said controlling means determines, when said judging means judges that no front converter is mounted on said camera, whether or not said trimming designating means is to be operated in response to a set condition of a manually operable member.

References Cited (Backward Citations)

US3490844A Cited
JPS5426721A Cited
JPS60145428A Cited
US4583831A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-03-01 1991-08-31 1992-03-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-03-01 1995-08-31 1996-03-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-03-01 1999-08-31 2000-03-01 $7700.00 Window Closed / Lapsed

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