Patent · US Expired

Optical printer comprising light switching elements

US4480257A · kind A · utility

5Cited by
2References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 28, 1983
Grant dateOct 30, 1984
Priority date
Expiry dateJan 28, 2003

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2/465
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

An optical printer includes magneto-optical storage elements (light switching elements) formed on a carrier body (substrate) of comparatively small dimensions. The light switching elements LZ on the substrate T are combined so as to form groups M which are separated from one another by an equidistant space a. Each group M is associated with a self-focusing lens LS so that the distances between all image points of a plurality of groups M on a record carrier Z are equal.

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