Patent · US Expired

Rotary scanning device

US5623385A · kind A · utility

2Cited by

7References

7Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Peter Gunschmann · Darmstadt, DE
Peter Lameli · Lampertheim, DE
Hartmut Willmann · Camburg, DE
Werner Maack · Seeheim-Jugenheim, DE

Key dates

Filing date	Sep 9, 1996
Grant date	Apr 22, 1997
Priority date	—
Expiry date	Sep 9, 2016

Classification

Technology area (CPC G)Physics
CPC primaryG11B5/53
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A rotary scanning device having a stationary upper and lower drum (1,2) is proposed, in which a cylindrical insert (15) with a servo head (16) is arranged in a radial bore (14) in the lower drum (2). The cylindrical insert (15) is secured to the circumference of a ring (18) which is concentrically supported in the lower drum (2) and which has an axial groove (19) in its circumferential surface for the adjustment of the angular position of the ring (18).

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