Drop-on-demand liquid emission using asymmetrical electrostatic device
    81.
    发明授权
    Drop-on-demand liquid emission using asymmetrical electrostatic device 失效
    使用不对称静电装置的按需喷液发射

    公开(公告)号:US06626520B1

    公开(公告)日:2003-09-30

    申请号:US10153990

    申请日:2002-05-23

    IPC分类号: B41J204

    CPC分类号: B41J2/14314

    摘要: A liquid emission device includes a chamber having a nozzle orifice. Separately addressable dual electrodes are positioned on opposite sides of a central electrode. The three electrodes are aligned with the nozzle orifice. A rigid electrically insulating coupler connects the two addressable electrodes. To eject a drop, an electrostatic charge is applied to the addressable electrode nearest to the nozzle orifice, which pulls that electrode away from the orifice, drawing liquid into the expanding chamber. The other addressable electrode moves in conjunction, storing potential energy in the system. Subsequently the addressable electrode nearest to the nozzle is de-energized and the other addressable electrode is energized, causing the other electrode to be pulled toward the central electrode in conjunction with the release of the stored elastic potential energy. This action pressurizes the liquid in the chamber behind the nozzle orifice, causing a drop to be ejected from the nozzle orifice.

    摘要翻译: 液体排放装置包括具有喷嘴孔的室。 单独寻址的双电极位于中心电极的相对侧上。 三个电极与喷嘴孔对齐。 刚性电绝缘耦合器连接两个可寻址电极。 为了喷射液滴,静电电荷施加到最接近喷嘴孔的可寻址电极,该电极将该电极拉离孔口,将液体引入扩张室。 其他可寻址电极一起移动,将势能存储在系统中。 随后,最接近喷嘴的可寻址电极被断电,另一个可寻址电极通电,使另一个电极与存储的弹性势能的释放一起被拉向中心电极。 这种作用使喷嘴孔后面的腔中的液体加压,导致从喷嘴口喷出的液滴。

    Electrostrictive valve for modulating a fluid flow

    公开(公告)号:US06626416B2

    公开(公告)日:2003-09-30

    申请号:US09735012

    申请日:2000-12-12

    IPC分类号: F16K3102

    摘要: An electrostrictive micro-valve is provided for modulating a fluid flow through a cannula or other narrow liquid conduit. The micro-valve includes a valve body having a passageway for conducting a flow of fluid, a valve element formed from a piece of viscoelastic material and disposed in the passageway, and a control assembly coupled to the viscoelastic material for electrostatically controlling the shape of the material to open or close the passageway. The valve element has a flat lower side connected to an inner wall of the passage of the valve body, and an upper side which faces an opposing wall within the passageway. The control assembly includes a pair of electrodes disposed over the upper and lower sides of the valve element. The electrode facing the lower side of the element is patterned so that localized electrostatic forces are generated across the viscoelastic material when a voltage is applied across both electrodes. Localized electrostatic forces generate a sinusoidal ripple throughout the viscoelastic material forming the valve element whose peak portions act as obstructions throughout the valve body that partially or completely obstruct a fluid flow.

    Ink jet print head cleaning
    84.
    发明授权
    Ink jet print head cleaning 失效
    喷墨打印头清洗

    公开(公告)号:US06517188B1

    公开(公告)日:2003-02-11

    申请号:US09641107

    申请日:2000-08-17

    IPC分类号: B41J2165

    CPC分类号: B41J2/16552 B41J2/185

    摘要: A self-cleaning printer includes a print head having a surface that is susceptible to a contaminate build up. A cleaning liquid containing a concentration of macroscopic cleaning particles is flowed in frictive contact with the contaminate such that a combined effect of frictive force and hydrodynamic shearing force acting on the contaminate effectively removes the contaminate from the surface. Preferably, the cleaning particles are adapted to attach to the contaminate. They may include polymeric beads such as polystyrene spheres. The cleaning particles preferably have surfaces to which polymeric chains are attached, the polymeric chains having end groups which adhere to the contaminate.

    摘要翻译: 自清洁打印机包括具有易受污染物积聚的表面的打印头。 包含浓缩的宏观清洁颗粒的清洗液体与污染物摩擦接触,使得作用在污染物上的摩擦力和流体力学剪切力的组合效应有效地从表面去除污染物。 优选地,清洁颗粒适于附着到污染物上。 它们可以包括聚合物珠,例如聚苯乙烯球。 清洁颗粒优选具有连接聚合物链的表面,聚合物链具有粘附于污染物的端基。

    Continuous tone microfluidic printing
    85.
    发明授权
    Continuous tone microfluidic printing 失效
    连续色调微流体印刷

    公开(公告)号:US06351274B1

    公开(公告)日:2002-02-26

    申请号:US09250202

    申请日:1999-02-16

    IPC分类号: G01D1516

    摘要: Apparatus for separating a receiver from a micro-fluidic contact print head after ink image pixels have been printed by the print head on the receiver, including a print head having a plurality of ink channels for delivering ink to the receiver when the receiver is in ink transfer contact with the print head; including an air supply device and air plenum which are associated with each ink channel and defining an air channel for conducting air to the air plenum; and the apparatus is effective after the ink has been transferred from the plurality of ink channels to the receiver for causing air to be delivered from the air supply device to the air channel and into the air plenum to exert a pressure which causes the separation of the receiver from the print head.

    摘要翻译: 用于在墨水图像像素已经被打印头打印在接收器上之后将接收器与微流体接触打印头分离的设备,包括具有多个墨水通道的打印头,用于当接收器处于墨水时将墨水输送到接收器 转印与打印头的接触; 包括空气供应装置和空气压力室,其与每个油墨通道相关联并且限定用于将空气传导到空气增压室的空气通道; 并且该装置在油墨从多个油墨通道转移到接收器之后是有效的,用于使空气从空气供应装置传送到空气通道并进入空气增压室,以施加压力,从而导致分离 接收器从打印头。

    Method of forming ink jet nozzle plates
    86.
    发明授权
    Method of forming ink jet nozzle plates 有权
    形成喷墨喷嘴板的方法

    公开(公告)号:US06238584B1

    公开(公告)日:2001-05-29

    申请号:US09257895

    申请日:1999-03-02

    IPC分类号: G11B5127

    摘要: A method for forming an ink jet nozzle plate includes providing a structure having a top substrate layer, a bottom substrate layer, and a buried layer disposed between the top substrate layer and the bottom substrate layer; selectively etching the top substrate layer to form a plurality of spaced ink cavities in the top substrate layer exposing portions of the buried layer; removing by etching the bottom substrate layer and bonding a base having ink delivery channels over the top substrate layer, with at least one channel corresponding to each ink cavity to thereby form the ink jet nozzle plate; and providing a mask having a plurality of openings over the buried layer and etching through such mask openings through the buried layer to the ink cavities to provide at least one bore region corresponding to each ink cavity to provide ink ejection access to such ink cavities so that the buried layer has portions which overhang the ink cavity.

    摘要翻译: 一种形成喷墨喷嘴板的方法包括提供一种具有顶部基底层,底部基底层和设置在顶部基底层和底部基底层之间的掩埋层的结构; 选择性地蚀刻顶部衬底层以在顶部衬底层中形成暴露部分埋层的多个间隔开的油墨腔; 通过蚀刻底部基底层并将具有墨水输送通道的基底结合在顶部基底层上,通过与每个墨水腔对应的至少一个通道从而形成喷墨喷嘴板; 以及提供掩模,其在所述掩埋层上方具有多个开口,并且通过所述掩模开孔蚀刻穿过所述掩埋层到所述墨腔,以提供对应于每个墨腔的至少一个孔区域,以提供对所述墨腔的墨喷射通路,使得 掩埋层具有伸出墨腔的部分。

    Microfluidic printing with optical density control
    87.
    发明授权
    Microfluidic printing with optical density control 失效
    具有光密度控制的微流控印刷

    公开(公告)号:US6042209A

    公开(公告)日:2000-03-28

    申请号:US901181

    申请日:1997-07-28

    IPC分类号: B41J2/175 B41J29/38

    CPC分类号: B41J2/175

    摘要: A microfluidic printing apparatus including at least one ink reservoir; a structure defining a plurality of chambers arranged so that the chambers form an array with each chamber being arranged to form an ink pixel; a plurality of microchannels connecting the reservoir to a chamber; a plurality of microfluidic pumps each being associated with a single microchannel for supplying ink from an ink reservoir through a microchannel for delivery to a particular chamber; and a structure for controlling the starting times of the microfluidic pumps and the time of separation of the receiver from the ink chambers so that the correct amount of ink is delivered from each chamber to each pixel on the receiver.

    摘要翻译: 一种微流体印刷装置,包括至少一个墨水容器; 限定多个室的结构,其布置成使得所述室形成阵列,每个室被布置成形成墨像素; 将储存器连接到室的多个微通道; 多个微流体泵各自与单个微通道相关联,用于通过微通道从墨水储存器供墨以输送到特定的室; 以及用于控制微流体泵的开始时间和接收器与墨水室分离的时间的结构,使得正确量的墨水从每个腔室传送到接收器上的每个像素。

    Camera and film for recording overlapping images
    88.
    发明授权
    Camera and film for recording overlapping images 失效
    用于记录重叠图像的相机和胶片

    公开(公告)号:US5842063A

    公开(公告)日:1998-11-24

    申请号:US740541

    申请日:1996-10-30

    摘要: A camera and film for recording overlapping visual images and digital data is disclosed. The camera includes a structure for recording the region of a film with visible light to record a visible image in one or more record layer(s) sensitized to visible light; and a structure for recording in the region of the film with non-visible light to record digital data in one or more record layer(s) sensitized to non-visible light, whereby overlapping visual and digital data images are recorded in the same region.

    摘要翻译: 公开了用于记录重叠的视觉图像和数字数据的相机和胶片。 相机包括用于记录具有可见光的胶片区域的结构,以将可见图像记录在对可见光敏感的一个或多个记录层中; 以及用于以不可见光在膜的区域中记录以在不可见光敏化的一个或多个记录层中记录数字数据的结构,由此在相同区域中记录重叠的视觉和数字数据图像。

    Charge coupled device (CCD) having high transfer efficiency at low
temperature operation
    89.
    发明授权
    Charge coupled device (CCD) having high transfer efficiency at low temperature operation 失效
    电荷耦合器件(CCD)在低温工作时具有高转印效率

    公开(公告)号:US5241199A

    公开(公告)日:1993-08-31

    申请号:US988380

    申请日:1992-12-08

    IPC分类号: H01L29/10 H01L29/768

    CPC分类号: H01L29/1062 H01L29/76841

    摘要: A charge coupled device having a layer of a semiconductor material on a surface of a substrate body of a semiconductor material. The layer is of a material which can be epitaxially deposited on the body with good crystalline quality. The material of the layer has a conduction band and/or valence band which is different from that of the body so as to provide a discontinuity in the energy level of the conduction band and/or valence band at the junction of the layer and the body during the operation of the charge coupled device. At least one electrode is over and insulated from the layer. The discontinuity in the conduction band and/or valence band creates a well in which photogenerated charge is collected.

    摘要翻译: 一种电荷耦合器件,其在半导体材料的衬底主体的表面上具有半导体材料层。 该层是可以以良好的结晶质量外延沉积在人体上的材料。 该层的材料具有不同于本体的导带和/或价带,以便在层和体的接合处的导带和/或价带的能级提供不连续性 在电荷耦合器件的操作期间。 至少有一个电极与该层结合并绝缘。 导带和/或价带的不连续性产生了收集光生电荷的阱。