Framing apparatus for a medical scanning camera

• US 4,956,665 A
• Filed: 07/03/1989
• Issued: 09/11/1990
• Est. Priority Date: 07/03/1989
• Status: Expired due to Fees

• Current Assignee: Polaroid Corporation (PLR IP Holdings LLC)
• Original Assignee: Polaroid Corporation (PLR IP Holdings LLC)
• Inventors: Niles, Thomas J.
• Primary Examiner(s): Wintercorn, Richard A.
• Application Number:
  US07/375,191
• Time in Patent Office: 435 Days
• Field of Search: 355/1, 355/21, 355/39, 355/44, 355/50, 354/76, 354/79, 354/80, 354/292, 354/295
• US Class Current: 355/50
• CPC Class Codes: G03B 17/52 of the Land type
• CPC Class Codes: G03B 27/50 with slit or like diaphragm moving over original for progressive exposure G03B27/34 takes precedence ; projection optics per se G03B27/525

Abstract

Hand held compact apparatus, e.g. a camera, for photographically copying a portion of an illuminated image includes a member that enables a camera operator to accurately frame and/or preview a portion of the image prior to its exposure, a portion that becomes blocked from view when the camera is placed in its exposure position. In operation a camera operator places the framing and/or previewing member in direct contact with a selected portion of a backlighted film transparency, prior to its exposure. When framing and/or previewing is complete, the operator rotates the pivotally attached camera into its image copying or exposure position. An opening through the framing and/or previewing member and an opening in the camera housing through which the image must pass for image copying purposes become mechanically aligned with one another when the camera is rotated into its exposure position, thereby enabling an accurately framed photograph of the selected transparency portion to result.

Claims

1. Photograhic apparatus for precisely selecting copying a portion of an illuminated image, comprising:

a housing having an opening therein for the passage of image-carrying light therethrough;

means for locating photosensitive material at a plane within said housing;

image-transferring means mounted within said housing in a lighttight relation with respect to said housing opening, said image transferring means being actuatable for transferring image-carrying light entering said housing opening to said plane.

a frame member having an opening therein for precise placement over a selected portion of said illuminated image;

means for coupling said frame member to said housing such that said housing may be moved between a framing position where said frame member is placed over the selected illuminated image portion and where it does not block a camera operator'"'"'s view of said selected image portion, and an exposure position where the housing opening is in registration with the frame opening in preparation for photographically copying said selected illuminated image portion; and

means for actuating said image-transferring means to thereby transfer image-carrying light entering said housing opening to said plane and to photosensitive material located thereat.

2. The apparatus of claim 1 wherein said coupling means includes means for pivotally coupling said frame member to an external surface of said apparatus housing.

3. The apparatus of claim 1 wherein said frame member includes a hand grip projecting from a side of thereof to facilitate the placement of said frame member against the illuminated image by an apparatus operator for the subsequent photographic copying of the selected illuminated image portion.

4. The apparatus of claim 3 wherein said housing includes a handgrip to facilitate the movement of said apparatus between its said framing and exposure positions by the apparatus operator.

5. The apparatus of claim 1 wherein said frame member includes means for supporting the illuminated image in a plane defined by an outer surface of a projection of said frame member.

6. The apparatus of claim 5 wherein said illuminated image supporting means comprises a plurality for projection with each projection having an outer surface and with the outer surface of each projection collectively defining said plane.

7. The apparatus of claim 1 wherein said housing opening and said frame member opening are rectangular.

8. A method of precisely framing a selected portion of an illuminated image with a photographic camera of the type having a housing that includes an opening for the passage of image-carrying light therethrough, which camera functions by placing the housing opening in an exposure position over the selected image portion where it obsecures the view thereof by a camera operator during the subsequent photographic copying thereof, comprising the steps of:

attaching a frame member to the camera housing such that it is manually movable between an exposure position where the frame member opening is in registration with the camera housing opening and a frame position out of registration with the housing opening where a camera operator has an unobstructed view of the frame member opening;

placing the frame member over the selected image portion when the frame member is in its framing position; and

manually moving the camera housing into the exposure position with its opening in registration with the frame member opening for the subsequent photographic copying of the selected image portion by the camera.