发明名称 |
DEVICE FOR DETECTING PRESSURE FLUCTUATIONS, DISPLAY DEVICE, RECORDING DEVICE AND SOUND REPRODUCTION SYSTEM |
摘要 |
Part of the (synthetic material) substrate (8) of a display is combined with a light source, e.g. a LED (14) and a photodetector (20) to be used as an optical microphone. A membrane (11) is formed which deforms due to air pressure fluctuations caused by sound waves. The fluctuations are detected by the photodetector for further processing.
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申请公布号 |
KR20030017628(A) |
申请公布日期 |
2003.03.03 |
申请号 |
KR20037000606 |
申请日期 |
2003.01.15 |
申请人 |
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发明人 |
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分类号 |
H04R1/38;G01H9/00;G02F1/13;G02F1/13357;H04R23/00 |
主分类号 |
H04R1/38 |
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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