发明公开
- 专利标题： Acoustic printheads
- 专利标题（中）： 声学打印头
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申请号： EP87311225.4申请日： 1987-12-18
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公开(公告)号： EP0272154A2公开(公告)日： 1988-06-22
- 发明人: Elrod, Scott Alan , Khuri-Yakub, Butrus T. , Quate, Calvin F. , Vanzandt, Thomas Roy
- 申请人： XEROX CORPORATION
- 申请人地址： Xerox Square - 020 Rochester New York 14644 US
- 专利权人： XEROX CORPORATION
- 当前专利权人： XEROX CORPORATION
- 当前专利权人地址： Xerox Square - 020 Rochester New York 14644 US
- 代理机构： Weatherald, Keith Baynes
- 优先权： US944490 19861219
- 主分类号： B41J2/04
- IPC分类号： B41J2/04
摘要：
A printhead (11) for an acoustic printer comprises one or more acoustic microlenses (12), each of which brings an acoustic beam (13) to focus approximately at the free surface (15) of a pool (14) of ink for ejecting individual droplets (16) of ink from the pool (14) on demand. As used herein, an "acoustic microlens" is defined as being an acoustic lens (12) having an aperture diameter (A) which is less than an order of magnitude greater than the wavelength of the incident acoustic wave (i. e., the acoustic wave which illuminates the lens).
公开/授权文献
- EP0272154B1 Acoustic printheads 公开/授权日：1993-09-15
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