Photographic printing apparatus with exposure position rectifying and method thereof

• US 5,786,909 A
• Filed: 12/16/1993
• Issued: 07/28/1998
• Est. Priority Date: 04/17/1992
• Status: Expired due to Fees

• Current Assignee: Noritsu Koki Co., Ltd.
• Original Assignee: Noritsu Koki Co., Ltd.
• Inventors: Oka, Takayuki, Tsuji, Masaaki, Nakao, Hiroto, Maeda, Hisahiro, Miyawaki, Hiroshi, Akira, Toshiro, Itojima, Mitsuhiko
• Primary Examiner(s): Coles, Sr., Edward L.
• Assistant Examiner(s): Williams, Kimberly A.
• Application Number:
  US08/162,188
• Time in Patent Office: 1,685 Days
• Field of Search: 354/105, 354/114, 354/115, 354/119, 354/121, 354/125, 354/190, 354/75, 354/76, 354/159, 358/527, 359/354, 359/676, 359/694, 359/811, 359/813, 355/40, 355/55, 355/56, 396/89, 396/133, 396/298, 395/101, 395/102
• US Class Current: 358/527
• CPC Class Codes: G03B 13/18 Focusing aids
• CPC Class Codes: G03B 27/32 Projection printing apparatus, e.g. enlarger, copying camera
• CPC Class Codes: G03B 27/522 Projection optics for electro-photographic copiers in particular G03G15/04
• CPC Class Codes: G03B 27/53 Automatic registration or positioning of originals with respect to each other or the photosensitive layer
• CPC Class Codes: G03B 27/588 Supply rolls; Cutting arrangements
• CPC Class Codes: G03B 35/14 Printing apparatus specially adapted for conversion between different types of record G03B42/08 takes precedence

Abstract

A photographic printing apparatus including a lens controlled to be positioned at a printing position, immediately adjacent a film negative, during photographic printing operation of the apparatus and at a normal position, displaced from the film negative, during other operations of the apparatus. Positioning the lens at the normal position, displaced from the film negative, enables the lens to be more easily protected and adjusted. The apparatus further includes a sample print detector apparatus comprising a CCD camera for capturing the sample print for display on a video monitor with a print position recognizing cursor. Key-subject points are specified with the cursor and mismatch between the key-subject points is determined in order to provide correction of filming-position. A rotating mechanism is also provided for rotating a negative mask member, lens member and exposure station by an identical angle of rotation to obtain a predetermined angle of exposure. Moving elements are provided for the enlarging lens and exposure station in order to execute printing by trimming. The apparatus also has an edge-shaper for machining photographic paper cut by a cutter to remove wastes on the frontal region of the leading edge of the photographic paper. The edge-shaper machines in a direction perpendicular to the direction in which the photographic paper advances through the apparatus, and the removed wastes are routed to a waste-box by a suction mechanism.

Claims

1. A three-dimensional (3D) photographic printing apparatus provided with an enlarging lens, comprising:

a lens supporting member for supporting said enlarging lens;

a guide member for moving said lens supporting member in a direction of a light axis of said enlarging lens; and

means for controlling said guide member to position said enlarging lens at a first distance, adjacent a film negative, during 3D photographic printing operation of said 3D photographic printing apparatus and at second distance, greater than said first distance, during other operations of said 3D photographic printing apparatus.