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:
May. 30, 2006
Filed:
Jun. 22, 2004
Kimihiko Shibuya, Mino, JP;
Toshimi Nishiyama, Hirakata, JP;
Yoshiaki Ishimura, Yawata, JP;
Hiroyuki Takeuchi, Eniwa, JP;
Kimihiko Shibuya, Mino, JP;
Toshimi Nishiyama, Hirakata, JP;
Yoshiaki Ishimura, Yawata, JP;
Hiroyuki Takeuchi, Eniwa, JP;
Abstract
An acousto optic element comprises optically transparent acousto optic medium having light incoming plane, light outgoing plane facing light incoming plane, transducer joining plane, and inclined plane tilted to transducer joining plane and piezoelectric transducer on which two opposing planes i.e., electrode layers and are formed and the transducer is connected to transducer joining plane of acousto optic medium through one of the electrode layers, wherein a deposited layer or a coating layer is formed on at least one of ultrasonic transducer or the acousto optic medium, the layer preventing ultrasonic waves generated by oscillation of ultrasonic transducer leaking onto acousto optic medium as a leakage-ultrasonic wave and propagating there, thus obtaining a high light-fading ratio.