Patent · US Expired

Half-tone image recording system

US4110796A · kind A · utility

16Cited by
2References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 1, 1977
Grant dateAug 29, 1978
Priority date
Expiry dateMar 1, 1997

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N1/06
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

In an image-reproducing system in which a number of parallel light beams contribute to the formation of half-tone dot areas on a record medium and scan over the record medium together, a reversing prism is included in the beam path to permit the line fit or line overlap to be closely controlled. The prism also adjusts the spacing between beams in the scanning direction which is provided when a coherent light source is used to avoid interference between adjacent beams.

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