Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1989-12-27
1992-08-11
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310344, H01L 4108
Patent
active
051382148
ABSTRACT:
A piezoelectric transducer arranged to allow the adjustment of its oscillation frequency. The piezoelectric transducer comprises a piezoelectric member which is encased in an airtight housing having at least one portion which allows transmission of light. The piezoelectric member has on its surfaces electrodes and is coupled to one end portions of electrical conductors the other end portions of which extend toward the external of said airtight housing. Also housed in the airtight housing is a deposition member which is evaporated in response to illumination of a light beam. The deposition member is provided so as to face the light-transmitting portion of the airtight housing.
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Nakai Toshiyuki
Nishikawa Yukio
Tanaka Junji
Budd Mark O.
Dougherty Thomas M.
Matsushita Electric - Industrial Co., Ltd.
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