Patent · US Expired

Scanning device for a laser beam focus

US6631020B2 · kind B2 · utility

2Cited by

8References

5Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Jacques Paris · St-Estève, FR
Patrick Rouannet · Pont-Saint-Esprit, FR

Key dates

Filing date	Jul 16, 2002
Grant date	Oct 7, 2003
Priority date	—
Expiry date	Jul 16, 2022

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2018/20359
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The focal distance (f) of a laser (1) beam (2) is adjusted by projecting the beam (2) onto the center of a mirror (3) of variable curvature and controlled by a depression circuit or by electrostatic forces. Thus the focus (4) can be displaced in a direction which is inaccessible to the usual means such as turning but rigid mirrors.

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