Color printer

• US 3,237,513 A
• Filed: 02/06/1962
• Issued: 03/01/1966
• Est. Priority Date: 02/06/1962
• Status: Expired due to Term

• Current Assignee: Alex W. Dreyfoos, George W. Mergens
• Original Assignee: Alex W. Dreyfoos, George W. Mergens
• Inventors: Dreyfoos, Alex W., Mergens, George W.
• Application Number:
  US04/171,448
• Time in Patent Office: 1,484 Days
• US Class Current: 355/38
• CPC Class Codes: G03B 27/735 in dependence upon automatic analysis of the original

Claims

1. A COLOR PRINTER COMPRISING A NEGATIVE CARRIER FOR HOLDING A COLOR NEGATIVE , AN EASEL FOR SUPPORTING A PHOTOGRAPHIC EMULSION, A SOURCE OF LIGHT FOR DIRECTING LIGHT THROUGH SAID NEGATIVE ONTO SAID EMULSION, AND VARIABLE FILTER MEANS INTERMEDIATE TO SAID NEGATIVE AND SAID EASEL FOR MAINTAINING THE COLOR BALANCE OF THE LIGHT INPINGING ON SAID EASEL CONSTANT FOR DIFFERENT NEGATIVE IN SAID NEGATIVE CARRIER, SAID VARIABLE FILTER MEANS CONSISTING OF A PAIR OF MOVABLE COMBINATION FILTER WEDGES INCLUDING VARIABLE DENSITY CYAN, YELLOW AND MAGENTA DYES, THE SMALL CENTER PORTION OF EACH OF SAID COMBINATION FILTER WEDGES BEING CLEAR AND THE BOTTOM AND TOP PORTIONS, OF EACH COMBINATION FILTER WEDGE, EACH BEING PROVIDED WITH A VARIABLE DENSITY AREA OF ONE OF SAID DYES, THE DENSITY OF THE DYES INCREASING FROM A MINIMUM AT A POINT ADJACENT THE CLEAR CENTER PORTION OF THE COMBINATION FILTER WEDGE TO A MAXIMUM AT THE BOTTOM AND TOP OF THE COMBINATION FILTER WEDGE, WHEREIN ONE OF SAID COMBINATION FILTER WEDGES IS PROVIDED WITH A FIRST VARIABLE DENSITY AREA OF ONE OF SAID DYES AND A SECOND VARIABLE DENSITY AREA OF ANOTHER OF SAID DYES AND SAID OTHER COMBINATION FILTER WEDGE IS PROVIDED WITH A FIRST VARIABLE DENSITY AREA OF THE FIRST OF SAID DYES AND A SECOND VARAIBLE DENSITY AREA OF SAID OTHER DYE.