The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 1989
Filed:
Jan. 07, 1988
Mark A Ealey, Juno, FL (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A magnetodistortive acutator arrangement for a flexible mirror that is mounted on a support includes an array of magnetodistortive actuators. Each of these actuators includes an elongated core of a highly magnetically permeable material stationarily mounted on the support, centered on a longitudinal axis and having two axially spaced end portions, a solenoid coil surrounding one of the end portions of the core and operative when energized for generating an electromagnetic field which permeates the core and has a high intensity region extending beyond the other of the end portions of the core, an active member of a magnetodistortive material connected to the core and extending axially beyond the other end portion thereof at least partially through the high-intensity region of the electromagnetic field for the latter to cause a change at least the axial dimension of the active member, and a transmitting member which applies this change to the flexible mirror. The coils of adjacent actuators are axially staggered relative to one another so as not to overlap each other.