Patent · US Expired

High speed package printer

US6252652A · kind A · utility

1Cited by
22References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 6, 1999
Grant dateJun 26, 2001
Priority date
Expiry dateMay 6, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B2227/005
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In a high speed package printer that produces photographs of varying size from film negatives, different cropping apertures are used with different lenses for different prints. In order to provide a large combination of different cropping apertures with different lenses the lenses and cropping apertures are separately selected for each print. The high speed package printer includes a light source, a diffusion plate, a plurality of cropping apertures on an aperture member which can be moved to select which aperture will block light from the diffusion plate. The light from the cropping aperture then passes through a negative for projection by a lens onto photographic paper for printing pictures. Separate means for moving the aperture member and for selecting which lens will receive light from a negative after it is provide a selection of all combinations of lenses and cropping apertures such that the photographs produced can have different sizes and shapes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.