Patent · US Active

Motor for optical systems

US8264104B2 · kind B2 · utility

7Cited by

11References

9Claims

0Family size

Assignee

Karl Storz GmbH & Co. KG · DE

Inventor

Stephan Schrader · Kleinmachnow, DE

Key dates

Filing date	Oct 9, 2009
Grant date	Sep 11, 2012
Priority date	—
Expiry date	Jun 29, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG02B7/102
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A motor for optical systems, for example endoscopes, has a stator with two permanent magnets having poles which are disposed in the same direction and are magnetically interconnected by a flux return element. A coil is disposed between the magnets. Laterally of each magnet, a pole shoe is also magnetically coupled with the flux return element. A slider of the motor includes a yoke of a soft magnetic material, which yoke is in magnetic engagement with the permanent magnets of the stator. When the coil is excited with a current, the slider can be displaced from its rest position along a longitudinal direction.

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