Method and apparatus for exposing and viewing at same station

• US 4,508,437 A
• Filed: 08/01/1983
• Issued: 04/02/1985
• Est. Priority Date: 08/01/1983
• Status: Expired due to Term

• Current Assignee: Polaroid Corporation (PLR IP Holdings LLC)
• Original Assignee: Polaroid Corporation (PLR IP Holdings LLC)
• Inventors: Johnson, Bruce K.
• Primary Examiner(s): MATHEWS, ALAN A
• Application Number:
  US06/519,085
• Time in Patent Office: 610 Days
• Field of Search: 354/77, 354/78, 354/83, 354/84, 354/85, 354/86, 354/76, 354/154, 354/155, 354/181, 354/212, 354/219, 354/224, 354/225
• US Class Current: 396/33
• CPC Class Codes: G03B 17/52 of the Land type

Abstract

Method and photographic apparatus are disclosed for use in allowing exposing and viewing of image recording units of the self-developing type at the same station within the apparatus.

Claims

1. A photographic apparatus for use in automatically exposing film units having a photosensitive area at a focal plane and for allowing processed ones of these units to be viewed at the same focal plane comprising:

means for directing image forming light rays from a scene to be photographed to the focal plane;

means for storing film units before and after exposure of the units;

means operable for causing distribution of processing fluid over the photosensitive area of the film unit prior to viewing of the film unit;

means for controlling passage of scene light to the focal plane for exposing the photosensitive area at the focal plane;

optical means for optically permitting viewing of the scene images prior to exposure and for permitting viewing of the film units at the same focal plane following exposure; and

,

film handling means operable in response to initiation of a cycle for advancing an unexposed one of the stored units to the focal plane and for selectively exposing the unit at the focal plane, said film handling means including means being operable for presenting the film unit at the focal plane for viewing.

2. The apparatus of claim 1 wherein said handling means is operable to return the film unit to said storing means following exposure and said viewing means being operable for returning said unit from said storing means to the same focal plane for viewing.

3. The apparatus of claim 1 wherein said handling means is operable to maintain the film unit at the same focal plane following exposure and said viewing means is operable to permit viewing of the film unit at the same focal position prior to return of the film unit to said storing means, said handling means being operable to return the film unit to said storing means following viewing thereof.

4. The apparatus of claim 2 wherein said means for distributing the processing fluid over the photosensitive area is operable to do so prior to exposing of the film unit at said focal plane.

5. The apparatus of claim 4 wherein said processing means is operable upon advancement of the film unit from said storing means to the focal plane for causing distribution of processing fluid over the photosensitive area.

6. The apparatus of claim 5 wherein said optical means includes a viewfinding lens, and means cooperable with said viewfinding lens and said means for directing image forming light rays from a scene to the focal plane for providing a through-the-lens viewing system and capable of inverting and reverting images of the film unit at said viewfinder lens.

7. The apparatus of claim 6 wherein said means for permitting viewing of the unit includes a light blocking member which is movable to block scene light from the viewfinding lens reaching the film unit at the focal plane during exposure and is movable to unblock the viewfinding lens following exposure.

8. The apparatus of claim 7 wherein said means for permitting viewing of the unit includes means cooperable with said optical means and being operable for projecting artificial illumination at a processed and exposed ones of the film unit while at the focal plane so as to project images of the film unit to said viewfinding lens and for generally simultaneously blocking scene light from said means for directing scene light to said viewfinding lens during viewing of the film unit.

9. A camera for exposing, developing and viewing photographic film units, said camera comprising:

means for directing scene light along a first given path to form an image at the camera focal plane;

shutter means actuatable for blocking transmission of scene light along said first path;

optical means for transmitting light along a second path from said focal plane for viewing an image of the scene;

blocking means operable for blocking transmission of light back along said second path to said focal plane;

storage means for storing a plurality of film units;

film handling means operable for advancing a film unit between said storage means and said focal plane;

processing means operable for distributing a processing fluid across at least a predetermined area of a film unit;

illuminating means operable for illuminating a film unit located at said film plane;

an actuator operable in a first mode for automatically controlling said blocking means, said shutter means, said film handling means, and said processing means so as to block said first and second light paths, advance an unexposed film unit to said focal plane for exposure, distribute said fluid across said area of said film, expose said film unit, and then advance the now exposed film unit to said storage means, and in a second mode for automatically controlling said blocking means, said film handling means, and said illuminating means to automatically advance or retain an exposed and developed film unit to said focal plane, unblock said second path and illuminate the film unit at said focal plane to permit viewing thereof; and

,

actuatable means for selecting said first or second mode.

10. A camera for exposing, developing and viewing photographic film units, said camera comprising:

means for directing scene light along a first given path to form an image at the camera focal plane;

shutter means actuatable for blocking transmission of scene light along said first path;

optical means for transmitting light along a second path from said focal plane for viewing an image of the scene;

blocking means operable for blocking transmission of light back along said second path to said focal plane;

storage means for storing a plurality of both unexposed and exposed and developed film units;

film handling means operable for advancing a film unit between said storage means and said focal plane;

processing means for distributing a processing fluid across at least a predetermined area of a film unit responsive to advancement of an unexposed unit to said focal plane;

an actuator operable in a first mode for automatically controlling said blocking means, said shutter means, said film handling means, and said processing means to block said first and second light paths, to advance an unexposed film unit to said focal plane for exposure, to distribute said fluid across said area of said film unit, unblocking and again blocking said first light path to provide an exposure in said film unit, and then advance the now exposed film unit to said storage means, and in a second mode for unblocking said light path subsequent to said exposure, but prior to removal of the now exposed and developed film unit from the exposure plane so as to permit viewing of said film unit thereat; and

,

actuatable means for selecting said first or second mode.

11. A method of exposing and viewing a film unit at the focal plane;

advancing an unexposed film unit from a storage area to the focal plane;

distributing processing fluid on the film unit prior to exposure thereof;

exposing the film unit;

imbibing the film unit while at the focal plane;

viewing the film unit while at the focal plane; and

,

returning the film unit from the focal plane to a storage area.