公开(公告)号：EP0434931A2

公开(公告)日：1991-07-03

申请号：EP90120920.5

申请日：1990-10-31

申请人： XEROX CORPORATION

发明人： Quate, Calvin F. ,  Hadimioglu, Babur ,  Rawson, Eric G.

IPC分类号： B41J2/04 ,  G10K11/30 ,  G10K11/34

CPC分类号： B41J2/14008 ,  B41J2002/14322 ,  G10K11/30

摘要： Acoustic radiators which are focused diffractively by multi-discrete-phase binary Fresnel lenses are provided for applications, such as acoustic ink printing. Standard semiconductor integrated circuit techniques are available for fabricating such lenses in compliance with design specifications having relatively tight tolerances, including specifications for integrated lens arrays demanding substantial precision in the relative spatial positioning of several lenses. The diffractive performance of these lenses simulate concave refractive lenses, even though the lenses preferably have generally flat geometries. To that end, the lenses advantageously are defined by patterning acoustically flat surfaces, such as an acoustically flat face of a substrate or, better yet, an acoustically flat face of a layer of etchable material which is grown or otherwise deposited on an acoustically flat surface of an etch resistant substrate.

摘要翻译： 通过多分离相位二进制菲涅尔透镜衍射聚焦的声辐射器可用于应用，如声学油墨印刷。 标准的半导体集成电路技术可用于制造这样的透镜，以符合具有相对严格公差的设计规范，其中包括对多个透镜的相对空间定位要求相当精确度的集成透镜阵列的规格。 这些透镜的衍射性能模拟凹折射透镜，即使透镜优选具有大致平坦的几何形状。 为此，透镜有利地通过图案化声学平坦表面（例如基底的声学平坦表面）或更好的是可蚀刻材料层的声学平坦表面来限定，其可生长或以其他方式沉积在声平面上 的耐蚀刻衬底。

公开(公告)号：EP0400955A3

公开(公告)日：1991-01-30

申请号：EP90305805.5

申请日：1990-05-29

申请人： XEROX CORPORATION

发明人： Khuri-Yakub, Butrus T. ,  Elrod, Scott A. ,  Quate, Calvin F. ,  Rawson, Eric G. ,  Hadimioglu, Babur B.

IPC分类号： B41J2/015

CPC分类号： B41J2/14008 ,  B41J2002/14322

摘要： An acoustic ink printer (10) comprises a pool of liquid ink (14) having a free surface in intimate contact with the inner face of a perforated membrane (32). The printer (10) addresses all pixel positions within its image field via substantially-uniform, relatively large diameter apertures (33) which extend through the membrane (32) on centers that are aligned with respective ones of the pixel positions. In operation, one or more focused acoustic beams (16) selectively eject individual droplets of ink from the ink menisci that extend across the apertures (33). Accordingly, the membrane (32) is positioned, and the bias pressure applied (14) to the ink is selected, so that the menisci essentially remain within the focal plane of such beam or beams (16).

公开(公告)号：EP0683048A2

公开(公告)日：1995-11-22

申请号：EP95303120.0

申请日：1995-05-09

申请人： XEROX CORPORATION

发明人： Hadimioglu, Babur B. ,  Quate, Calvin F. ,  Elrod, Scott A. ,  Rawson, Eric G. ,  Lim, Martin

IPC分类号： B41J2/14 ,  B41J2/16 ,  B41J2/04

CPC分类号： B41J2/14008 ,  B41J2/145 ,  B41J2002/14387 ,  B41J2002/14483

摘要： A material deposition head (200; Fig.6) having lithographically defined ejector units (10). Beneficially, each ejector unit includes a plurality of lithographically defined droplet ejectors (10). Each droplet ejector (10) includes an acoustic transducer (20) and a lens (30) for focussing the acoustic energy onto the surface of a liquid (14). Furthermore, methods of fabricating such lithographically defined material deposition heads (200; Fig.6) are also described.

摘要翻译： 具有光刻定义的喷射器单元（10）的材料沉积头（200;图6）。 有利地，每个喷射器单元包括多个光刻定义的液滴喷射器（10）。 每个液滴喷射器（10）包括声学换能器（20）和用于将声能聚焦到液体（14）的表面上的透镜（30）。 此外，还描述了制造这种光刻定影材料沉积头（200;图6）的方法。

公开(公告)号：EP0549244A1

公开(公告)日：1993-06-30

申请号：EP92311465.6

申请日：1992-12-16

申请人： XEROX CORPORATION

发明人： Rawson, Eric G.

IPC分类号： B41J2/045 ,  B41J2/055

CPC分类号： B41J2/14008 ,  B41J2002/14322 ,  B41J2002/14475

摘要： In response to the foregoing need, the cap structures (31) that are provided by this invention for controlling the free ink surface levels (13) of acoustic ink printers (11) are characterized by having aperture configurations (42,52) that are more or less equally subdivided into "reflectively balanced" sectors that radially differ from each other by ¼ of the dominant wavelength of the surface ripple waves that are generated by the droplet ejection process (12). The ½ wavelength difference in the radii of the two generally equal reflectively balanced fractional parts of these apertures (42,52) causes the dominant frequency components of the retroreflected ripple waves to destructively interfere with each other in the critical central regions of the apertures.

摘要翻译： 响应于上述需要，由本发明提供的用于控制声墨水打印机（11）的自由墨水表面（13）的盖结构（31）的特征在于具有更多的孔结构（42,52） 或更少等同地细分为通过液滴喷射过程（12）产生的表面波纹波的主波长的1/4的彼此径向不同的“反射平衡”扇区。 这些孔（42,52）的两个大致相等的反射平衡分数部分的半径中的1/2波长差导致回射纹波的主要频率分量在孔的关键中心区域中相互干涉 。

公开(公告)号：EP0400955A2

公开(公告)日：1990-12-05

申请号：EP90305805.5

申请日：1990-05-29

申请人： XEROX CORPORATION

发明人： Khuri-Yakub, Butrus T. ,  Elrod, Scott A. ,  Quate, Calvin F. ,  Rawson, Eric G. ,  Hadimioglu, Babur B.

IPC分类号： B41J2/015

CPC分类号： B41J2/14008 ,  B41J2002/14322

摘要： An acoustic ink printer (10) comprises a pool of liquid ink (14) having a free surface in intimate contact with the inner face of a perforated membrane (32). The printer (10) addresses all pixel positions within its image field via substantially-uniform, relatively large diameter apertures (33) which extend through the membrane (32) on centers that are aligned with respective ones of the pixel positions. In operation, one or more focused acoustic beams (16) selectively eject individual droplets of ink from the ink menisci that extend across the apertures (33). Accordingly, the membrane (32) is positioned, and the bias pressure applied (14) to the ink is selected, so that the menisci essentially remain within the focal plane of such beam or beams (16).

摘要翻译： 声音墨水打印机（10）包括具有与多孔膜（32）的内表面紧密接触的自由表面的液体墨水池（14）。 打印机（10）通过基本上均匀的相对较大直径的孔（33）来解决其图像场内的所有像素位置，孔径（33）在与像素位置中的相应位置对准的中心处延伸穿过膜（32）。 在操作中，一个或多个聚焦声束（16）选择性地从穿过孔（33）延伸的油墨半月板喷射墨滴。 因此，膜（32）被定位，并且选择施加到油墨上的偏压（14），使得半月板基本上保持在这种梁或梁（16）的焦平面内。

公开(公告)号：EP0081349A1

公开(公告)日：1983-06-15

申请号：EP82306437.3

申请日：1982-12-03

申请人： XEROX CORPORATION

发明人： Rawson, Eric G.

IPC分类号： G02B7/26

CPC分类号： G02B6/2808 ,  G02B6/2804 ,  G02B6/4203 ,  G02B6/425

摘要： A fused uniconically tapered termination (11) for the optical fibers (13) of a star configured optical communication network which may be used as a divider or as a combiner for coupling a light source (12) or a photodetector, respectively, to the fibers (13) of such a network. Such a termination is particularly well suited for use with a biconically tapered coupler to provide parallel inputs or outputs for such a network.

摘要翻译： 用于星形配置的光通信网络的光纤（13）的熔融单锥形终端（11），其可以用作分隔器或用于将光源（12）或光电检测器分别耦合到光纤的组合器 （13）。 这样的终端特别适用于双锥形耦合器以提供用于这种网络的并行输入或输出。

公开(公告)号：EP0549243B1

公开(公告)日：1997-03-19

申请号：EP92311464.9

申请日：1992-12-16

申请人： XEROX CORPORATION

发明人： Rawson, Eric G. ,  Elrod, Scott A. ,  Hadimioglu, Babur B. ,  Quate, Calvin F. ,  Khuri-Yakub, Butrus T.

IPC分类号： B41J2/045 ,  B41J2/055

CPC分类号： B41J2/14008 ,  B41J2002/14322

公开(公告)号：EP0549244B1

公开(公告)日：1996-11-13

申请号：EP92311465.6

申请日：1992-12-16

申请人： XEROX CORPORATION

发明人： Rawson, Eric G.

IPC分类号： B41J2/045 ,  B41J2/055

CPC分类号： B41J2/14008 ,  B41J2002/14322 ,  B41J2002/14475

公开(公告)号：EP0550192A3

公开(公告)日：1993-11-10

申请号：EP92311381.5

申请日：1992-12-14

申请人： XEROX CORPORATION

发明人： Hadimioglu, Babur B. ,  Khuri-Yakub, Butrus T. ,  Rawson, Eric G.

IPC分类号： B41J2/04

CPC分类号： B41J2/14008 ,  B41J2002/14322

摘要： A printhead for an acoustic ink printer has a piezoelectric transducer (11,12,13) on one surface of a substrate (10). A layer (14) of a dielectric material is provided on the surface of the transducer away from the substrate. A Fresnel lens (15) is formed in the surface of the dielectric layer away from the transducer, for focusing sound energy near the surface of a body of ink adjacent the dielectric layer. A pit (19) may be formed in the substrate under the transducer. The transducer may be a body (12) of piezoelectric material sandwiched between a pair of electrodes (11,13), the lower electrode of which has a thickness that is a quarter wave at the excitation frequency of the transducer. An anti-reflective coating (30) may be provided on the lower surface of the substrate, with a body (31) of an absorptive material abutting the anti-reflective layer, or an absorptive material (32) having an acoustic impedance approximately matching that of the substrate may be coated on the lower surface of the substrate.

公开(公告)号：EP0550193A1

公开(公告)日：1993-07-07

申请号：EP92311382.3

申请日：1992-12-14

申请人： XEROX CORPORATION

发明人： Hadimioglu, Babur B. ,  Rawson, Eric G. ,  Khuri-Yakub, Butrus T.

IPC分类号： B06B1/06

CPC分类号： B06B1/067 ,  B41J2/14008

摘要： An acoustic ink printer transducer comprises a piezoelectric layer (13) positioned between two suitable electrode materials (12,14). To enable ejection of a number of different ink droplet sizes from the acoustic ink printer, thereby facilitating grey scale printing, the piezoelectric layer (13) and one (14) of the electrode layers have an acoustic thickness of λ/4, where λ is the wavelength at the fundamental resonant frequency ω o of the transducer.

摘要翻译： 一种声控喷墨打印机换能器包括两个合适的电极材料（12,14）之间定位的压电体层（13）。 为了使一些从声学喷墨打印机，不同的墨滴大小的喷出从而便于灰度打印，压电体层（13）和所述电极层中的一个（14）具有与拉姆达/ 4，其中的λ是声厚度 波长在换能器的基本共振频率ω-O操作。