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:
Jun. 19, 1990
Filed:
Oct. 12, 1989
Mark A Ealey, Ayer, MA (US);
Litton Systems, Inc., Lexington, MA (US);
Abstract
A deformable mirror construction is disclosed in which a difference in pressure between the front reflecting surface of the deformable mirror and an enclosed chamber behind the mirror's reflecting surface is used to restore the reflecting surface to its undeformed condition after its shape has been deformed by the selective operation of one or more electrodistortive actuators. A pump is associated with the chamber to produce at least a partial vacuum in the enclosed chamber. The use of a pressure differential to influence the shape of the mirror's reflecting surface avoids the need to have the actuators fastened to the reflecting surface, thereby permitting a construction which provides for the easy replacement of actuators. A preferred embodiment of the deformable mirror includes an apparatus for circulating a coolant through the mirror's faceplate to remove heat therefrom.