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US4690531A Expired / Lapsed US ⏱️ 0.0 years remaining

Low cost telephoto and normal lens camera with an extendable flash

Assignee: Eastman Kodak Co
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Filing: 1985-06-24
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Granted: 1987-09-01
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Expires: 2005-06-24
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Abstract

Abstract A still camera comprised of a dual, normal and telephoto, lens with flash, incorporates features which allow controlling several camera functions with a single sliding multi-position flash housing. Position "normal" configures the camera so that the viewfinder has a normal field of view, the flash is unextended, and an objective lens of normal focal length is in exposure position. Position "tele" configures the camera so that the viewfinder has a narrow field of view, a telephoto lens is in exposure position, and the flash is fully extended. Additional positions of the flash housing and lens and viewfinder are also disclosed.

Inventors

  • 👤 David E. Hansen
  • 👤 Richard R. Kelbe
  • 👤 Dana W. Wolcott

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 15:36
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/04; G03B19/07; G03B15/00; G03B15/02; G03B15/03; G03B15/05; G03B2215/00; G03B2215/05; G03B2215/0503; G03B2215/0507

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 215 words
In a camera including means for providing a source of flash illumination having means adjustable for varying the illumination projected toward a photographic subject, a viewfinder adjustable to provide relatively wide-angle and relatively narrow-angle views of a scene, and lens apparatus movable for focusing said camera according to the distance between said camera and a subject to be photographed, the improvment comprising: control means for controlling jointly said lens apparatus, said flash source, and said viewfinder, said control means having: (1) a first condition in which (i) said lens apparatus is focused at a relatively short distance, (ii) said flash source is positioned at a first distance from the lens apparatus, and (iii) said viewfinder is adjusted to provide a relatively wide-angle view of a photographic scene including a photographic subject situated at such relatively short distance, (2) a second condition in which (i) said lens apparatus is focused at a relatively remote distance, (ii) said flash source is positioned at a second distance from the lens apparatus greater than said first distance, and (iii) said viewfinder is adjusted to provide a relatively narrow-angle view of a photographic scene including a subject situated at the remote distance, and (3) a third condition in which said lens apparatus, said viewfinder and said flash source are covered.
Claim 2
Dependent Claim 215 words
In a camera including means for providing a source of flash illumination having means adjustable for varying the illumination projected toward a photographic subject, a viewfinder adjustable to provide relatively wide-angle and relatively narrow-angle views of a scene, and lens apparatus movable for focusing said camera according to the distance between said camera and a subject to be photographed, the improvment comprising: control means for controlling jointly said lens apparatus, said flash source, and said viewfinder, said control means having: (1) a first condition in which (i) said lens apparatus is focused at a relatively short distance, (ii) said flash source is positioned at a first distance from the lens apparatus, and (iii) said viewfinder is adjusted to provide a relatively wide-angle view of a photographic scene including a photographic subject situated at such relatively short distance, (2) a second condition in which (i) said lens apparatus is focused at a relatively remote distance, (ii) said flash source is positioned at a second distance from the lens apparatus greater than said first distance, and (iii) said viewfinder is adjusted to provide a relatively narrow-angle view of a photographic scene including a subject situated at the remote distance, and (3) a third condition in which said lens apparatus, said viewfinder and said flash source are covered.
Claim 3
Dependent Claim 414 words
In a camera including means for providing a source of flash illumination having means adjustable for varying the illumination projected toward a photographic subject, a viewfinder adjustable to provide relatively wide-angle and relatively narrow-angle views of a scene, and lens apparatus movable for focusing said camera according to the distance between said camera and a subject to be photographed, the improvment comprising: control means for controlling jointly said lens apparatus, said flash source, and said viewfinder, said control means having: (1) a first condition in which (i) said lens apparatus is focused at a relatively short distance, (ii) said flash source is positioned at a first distance from the lens apparatus, (iii) said viewfinder is adjusted to provide relatively wide-angle view of a photographic scene including a photographic subject situated at such relatively short distance, and (2) a second condition in which (i) said lens apparatus is focused at a relatively remote distance, (ii) said flash source is positioned at a second distance from the lens apparatus greater than said first distance, and (iii) said viewfinder is adjusted to provide a relatively narrow-angle view of a photographic scene including a subject situated at the remote distance, said viewfinder comprising a turret containing a relatively wide-angle lens and a relatively narrow-angle lens, a viewing aperture into said housing, means for disposing said relatively wide-angle lens set in alignment with said viewing aperture in said first condition and for disposing said relatively narrow angle lens set in alignment with said viewing aperture in said second condition, said lens apparatus comprising alens turret arranged for rotatable motion with respect to an exposure aperture, said lens turret containing a lens providing a relatively wide-angle image of a scene and a lens providing a relatively narrow-angle image of a scene, and an overcenter spring arranged to hold one or the other of said lenses in alignment with said exposure aperture, said flash source including a flash housing which is selectively positionable in a first position proximate to said lens apparatus and a second position distant from said lens apparatus, said flash housing having first means for engaging said viewfinder turret and second means for engaging said lens turret, and said control means including said flash housing whereby said turrets are disposed with the wide-angle lenses operatively positioned when said flash housing is disposed in its first position and said turrets are disposed with the narrow angle lenses operatively positioned when said flash housing is disposed in its second position.
Claim 4
Dependent Claim 414 words
In a camera including means for providing a source of flash illumination having means adjustable for varying the illumination projected toward a photographic subject, a viewfinder adjustable to provide relatively wide-angle and relatively narrow-angle views of a scene, and lens apparatus movable for focusing said camera according to the distance between said camera and a subject to be photographed, the improvment comprising: control means for controlling jointly said lens apparatus, said flash source, and said viewfinder, said control means having: (1) a first condition in which (i) said lens apparatus is focused at a relatively short distance, (ii) said flash source is positioned at a first distance from the lens apparatus, (iii) said viewfinder is adjusted to provide relatively wide-angle view of a photographic scene including a photographic subject situated at such relatively short distance, and (2) a second condition in which (i) said lens apparatus is focused at a relatively remote distance, (ii) said flash source is positioned at a second distance from the lens apparatus greater than said first distance, and (iii) said viewfinder is adjusted to provide a relatively narrow-angle view of a photographic scene including a subject situated at the remote distance, said viewfinder comprising a turret containing a relatively wide-angle lens and a relatively narrow-angle lens, a viewing aperture into said housing, means for disposing said relatively wide-angle lens set in alignment with said viewing aperture in said first condition and for disposing said relatively narrow angle lens set in alignment with said viewing aperture in said second condition, said lens apparatus comprising alens turret arranged for rotatable motion with respect to an exposure aperture, said lens turret containing a lens providing a relatively wide-angle image of a scene and a lens providing a relatively narrow-angle image of a scene, and an overcenter spring arranged to hold one or the other of said lenses in alignment with said exposure aperture, said flash source including a flash housing which is selectively positionable in a first position proximate to said lens apparatus and a second position distant from said lens apparatus, said flash housing having first means for engaging said viewfinder turret and second means for engaging said lens turret, and said control means including said flash housing whereby said turrets are disposed with the wide-angle lenses operatively positioned when said flash housing is disposed in its first position and said turrets are disposed with the narrow angle lenses operatively positioned when said flash housing is disposed in its second position.
Claim 5
Dependent Claim 32 words
The invention according to claim 2 wherein spring means is provided to urge said flash housing to said second position, and means for selectively holding said flash housing in said first position.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-08-31 1991-03-02 1991-09-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-08-31 1995-03-02 1995-09-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-08-31 1999-03-02 1999-09-01 $7700.00 Window Closed / Lapsed

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