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:
Oct. 16, 2007
Filed:
Mar. 29, 2006
Christopher N. Pannell, Orlando, FL (US);
Elliot S. Wachman, Lakewood, NJ (US);
Christopher N. Pannell, Orlando, FL (US);
Elliot S. Wachman, Lakewood, NJ (US);
Gooch and Housego PLC, Somerset, GB;
Abstract
An acousto-optic (AO) device for generating a highly apodized acoustic wave field includes a piezoelectric transducer crystal for emitting an acoustic wave having a ground electrode disposed on one side of the piezoelectric crystal, and a patterned electrode layer disposed on a side of the piezoelectric crystal opposite the ground electrode. The patterned electrode layer includes a continuous region proximate to its center and a discontinuous region, a pattern in the discontinuous region including a plurality of spaced apart features electrically connected to the continuous region. An AO interaction crystal which receives the acoustic wave is attached to the ground electrode or the patterned electrode layer. A feature size of the features in the pattern are sufficiently small to provide a fine structure far field condition for the acoustic wave in the AO interaction crystal underlying the discontinuous region beginning <5 mm measured from an interface between the piezoelectric crystal and the AO interaction crystal.