发明名称 |
Acoustoelectric transducer using optical device |
摘要 |
An optical acoustoelectric transducer receives light reflected by a vibrating board and detects the displacement of the vibrating board. A surface-emitting luminescent device having a substantially uniform concentric intensity distribution of light emission is placed in the center of a common substrate. A photodetector element is provided to surround the luminescent device. A lens is also provided in the optical path between the substrate and the vibrating board to converge the light traveling toward and from the vibrating board.
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申请公布号 |
US2005163509(A1) |
申请公布日期 |
2005.07.28 |
申请号 |
US20020148468 |
申请日期 |
2002.05.31 |
申请人 |
KOBAYASHI OKIHIRO;MIYAHARA NOBUHIRO;TAKEDA TAMIO;HATTORI YUTAKA;MIYAZAWA HIROSHI |
发明人 |
KOBAYASHI OKIHIRO;MIYAHARA NOBUHIRO;TAKEDA TAMIO;HATTORI YUTAKA;MIYAZAWA HIROSHI |
分类号 |
H04R23/00;(IPC1-7):H04B10/00 |
主分类号 |
H04R23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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