发明申请
- 专利标题： Projector
- 专利标题（中）： 投影机
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申请号： US10916209申请日： 2004-08-11
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公开(公告)号： US20060033882A1公开(公告)日： 2006-02-16
- 发明人: Kinya Matsuzawa , Yoshiki Fukui , Shinichi Miyazaki
- 申请人： Kinya Matsuzawa , Yoshiki Fukui , Shinichi Miyazaki
- 主分类号： G03B31/00
- IPC分类号： G03B31/00
摘要：
A projector including an ultrasonic speaker that includes an ultrasonic transducer capable of oscillating an acoustic signal in a wide frequency band and reproduces signal sound in the audio frequency band, and a projector main body that includes a projecting optical system that projects a video image on a projecting surface. The ultrasonic speaker and the projector main body are integrated with each other.
公开/授权文献
- US07210785B2 Projector 公开/授权日：2007-05-01
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