公开(公告)号：US5138340A

公开(公告)日：1992-08-11

申请号：US624117

申请日：1990-12-06

申请人： Robert A. Sprague ,  Mark S. Bernstein ,  Robert P. Kowalski ,  David L. Hecht ,  David L. Steinmetz ,  David E. Kizer ,  Robert L. Thornton

发明人： Robert A. Sprague ,  Mark S. Bernstein ,  Robert P. Kowalski ,  David L. Hecht ,  David L. Steinmetz ,  David E. Kizer ,  Robert L. Thornton

IPC分类号： G06K15/12

CPC分类号： G06K15/12

摘要： A technique for producing pixel patterns at different selected wavelengths. A diode laser is repeatedly pulsed and has its temperature changed from pulse to pulse, which causes the output wavelength to change. This allows pixel patterns to be interlaced by the use of dispersive elements such as prisms in the optical train. A temperature shift of about 15.degree. C. provides a wavelength shift of about 30 angstroms, which is usable. A temperature shift of 20.degree. C.-30.degree. C. or more is preferable. The temperature shifts may be accomplished by supplying specific currents below threshold and above threshold. For two-wavelength operation, the laser is driven at a first bias current below threshold for a first non-illumination interval, at a first pulse current above threshold for a first illumination interval, at a second bias current below threshold for a second non-illumination interval, and a second pulse current above threshold for a second illumination interval. The bias currents are sufficiently different so as to establish different operating temperatures for the illumination intervals. The temperature shifts may also be accomplished at least in part by use of an auxiliary heater.

摘要翻译： 用于产生不同选定波长的像素图案的技术。 二极管激光器被反复脉冲并且其温度从脉冲变为脉冲，这导致输出波长改变。 这允许像素图案通过使用诸如光学列中的棱镜的色散元件来隔行扫描。 约15℃的温度偏移提供约30埃的波长位移，这是可用的。 温度变化优选为20℃-30℃以上。 温度漂移可以通过提供低于阈值和高于阈值的特定电流来实现。 对于双波长操作，对于第一非照明间隔，激光器以低于第一非照明间隔的第一偏置电流被驱动，在第一照明间隔的第一脉冲电流高于阈值时，在第二非 - 照明间隔和第二脉冲电流高于第二照明间隔的阈值。 偏置电流充分不同，从而为照明间隔建立不同的工作温度。 至少部分地通过使用辅助加热器也可以实现温度漂移。

公开(公告)号：US5495269A

公开(公告)日：1996-02-27

申请号：US863650

申请日：1992-04-03

申请人： Scott A. Elrod ,  David L. Steinmetz

发明人： Scott A. Elrod ,  David L. Steinmetz

IPC分类号： G06F3/041 ,  G06F3/038 ,  G06F3/042 ,  G09G3/02

CPC分类号： G06F3/0386 ,  G06F3/0425

摘要： Collaborative work on an interactive system is facilitated by accurately capturing and displaying information on an interactive system, wherein multiple persons may work together for supplying and receiving information with a single large area display. A large area electronic writing system is provided which employs a large area display screen, an image projection system, and an image receiving system including a light emitting pen. The display screen is designed with the imaging surface in front of the substrate, with a thin abrasion resistant layer protecting the imaging surface from the pen tip. The screen is held together with dowel pins pressed through the layers, and is curved to provide pressure for holding the layers together and mechanical rigidity against flexure during writing. The imaging surface disperses light from both the projection system and the light pen. The image receiving system comprises a very large aperture lens for gathering light energy from the light spot created by the light emitting pen. The amount of energy from the light spot which reaches the integrating detector is more critical to accurate pen position sensing than the focus of the light spot, so that the aperture of the lens is more important than its imaging quality. The light emitting pen is modified to additionally disperse light at its tip.

摘要翻译： 通过准确地捕获和显示交互式系统上的信息，有助于交互式系统的协同工作，其中多个人可以一起工作，以提供和接收单个大面积显示的信息。 提供了一种采用大面积显示屏，图像投影系统和包括发光笔的图像接收系统的大面积电子书写系统。 显示屏被设计成具有在基板之前的成像表面，并且薄的耐磨层保护成像表面免受笔尖的影响。 屏幕与通过层压制的定位销一起保持，并且弯曲以提供压力以将层保持在一起，并且在书写期间抵抗机械刚度抵抗弯曲。 成像表面分散来自投影系统和光笔的光。 图像接收系统包括用于从由发光笔产生的光斑聚集光能的非常大的光圈透镜。 到达积分检测器的光斑的能量量对于准确的笔位置感测比光点的焦点更为关键，使得透镜的孔径比其成像质量更重要。 修改发光笔以在其尖端附加地分散光。

公开(公告)号：US5111220A

公开(公告)日：1992-05-05

申请号：US640661

申请日：1991-01-14

申请人： Babur B. Hadimioglu ,  Butrus T. Khuri-Yakub ,  David L. Steinmetz

发明人： Babur B. Hadimioglu ,  Butrus T. Khuri-Yakub ,  David L. Steinmetz

IPC分类号： B41J2/16 ,  B41J2/015 ,  B41J2/14

CPC分类号： B41J2/14008

摘要： A method of fabricating an acoustic ink printhead with an integrated liquid level control layer is presented. With standard photolithographic techniques, acoustic lenses and ink supply channels are defined in a substrate. Apertures are created in a spacer layer plate to define cavities to hold the ink reservoirs for each ejector. Corresponding alignment holes also made in the substrate and in the spacer layer plate. With spheres matching the size of the alignment holes, the spheres engage the alignment holes to precisely align the apertures in the spacer layer plate with the acoustic lenses in the substrate. The plate and substrate are then bonded for an integrated acoustic printhead with liquid level control by capillary action.

摘要翻译： 提出了一种制造具有集成液位控制层的声学墨水打印头的方法。 在标准光刻技术中，声透镜和供墨通道被限定在基板中。 在间隔层板中产生孔以限定用于保持每个喷射器的油墨储存器的空腔。 在衬底和间隔层板中也制成相应的对准孔。 利用与对准孔的尺寸匹配的球体，球体与对准孔接合，以使间隔层板中的孔与衬底中的声透镜精确对准。 然后通过毛细作用将板和衬底粘合用于具有液位控制的集成声学打印头。