Patent · US Expired

Method for making a holographic mirror

US5145756A · kind A · utility

14Cited by

5References

11Claims

0Family size

Assignee

Saint-Gobain Vitrage · FR

Inventors

Wilbert Windeln · Heinsberg, DE
Manfred-Andreas Beeck · Gifhorn, DE
Norbert Bartonitscheck · Stolberg, DE

Key dates

Filing date	Jul 15, 1991
Grant date	Sep 8, 1992
Priority date	—
Expiry date	Jul 15, 2011

Classification

Technology area (CPC G)Physics
CPC primaryG03H2222/36
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A holographic mirror is made by a process of continuous exposure. For this purpose, a photosensitive layer (10) is exposed strip by strip in a direction crosswise to that in which the layer is exposed by two interfering beams (6, 6'). Film (11) bearing photosensitive layer (10) is continuously moved in the longitudinal direction (F) at a speed that ensures sufficient exposure of the layer. The procedure makes it possible to produce holograms of any length in one direction.

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