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1. 发明授权

US4507773A High efficiency precision laser beam switch 失效
标题翻译：高效精密激光束开关
公开(公告)号：US4507773A
公开(公告)日：1985-03-26
申请号：US426089
申请日：1982-09-28
申请人： James T. McCann , Lawrence W. Dobbins , Charles W. Reno
发明人： James T. McCann , Lawrence W. Dobbins , Charles W. Reno
IPC分类号： G11B7/0037 , G11B7/12 , G11B7/14 , G11B20/18 , G11B27/36 , G11B7/00
CPC分类号： G11B20/1816 , G11B27/36 , G11B7/0037 , G11B7/12 , G11B7/14
摘要： An optical beam switch is provided in a multiple beam optical disc record and playback system. Current systems for very high data rate optical disc mass memory apparatus include requirements for near-continuous recording of data using two separate turntables in a single apparatus. To reduce cost and complexities in the system as well as power requirements, the optical system includes a beam switch that allows a single record laser and modulator to be shared between two turntables. In accordance with the system a half-wave plate is shifted into and out of the beam path to effect polarization change of the light beam. A polarizing beam splitter, which follows the half-wave plate in the beam path, shifts the light beam in one of two directions depending upon the polarization of the light beam or, in other words, the position of the half-wave plate.
摘要翻译：在多光束光盘记录和重放系统中提供光束开关。用于非常高数据速率光盘大容量存储装置的当前系统包括在单个装置中使用两个单独的转盘来近距离记录数据的要求。为了降低系统的成本和复杂性以及功率需求，光学系统包括一个光束开关，允许单个记录激光器和调制器在两个转盘之间共享。根据该系统，半波片被移入和移出光束路径以实现光束的偏振变化。在光束路径中跟随半波片的偏振光束分离器根据光束的偏振或换算为半波片的位置而使光束沿两个方向之一移动。

2. 发明授权

US4793281A Unitized toner assembly for continuous electrostatic film medium 失效
标题翻译：用于连续静电薄膜介质的组合式调色剂组件
公开(公告)号：US4793281A
公开(公告)日：1988-12-27
申请号：US90630
申请日：1987-08-28
申请人： Lawrence W. Dobbins , Siu K. Luk
发明人： Lawrence W. Dobbins , Siu K. Luk
IPC分类号： G03G15/10 , G03G15/11 , G03G15/06
CPC分类号： G03G15/101 , G03G15/11
摘要： A liquid toner applicator for elongated photoconductive film medium on which a latent electrostatic image has been formed includes an upper bearing surface for supporting moving film medium, which is spaced from a conductive block having an upper surface. The conductive block has slots cut into a toning region of its upper surface. During operation, pressurized toner wells through the slots into the region between the lower surface of the film and the upper surface of the block. The toner tones the latent image. The upwelling toner spills into fluid channels, which carry the toner which is not used to a catch basin. From the catch basin, a toner pump recirculates the toner. Downstream form the toning region, a further slot cut into the block communicates with a vacuum source to squeegee away excess toner which is not associated with the toned image. An air knife downstream from the vacuum squeegee includes a slot cut an an angle through the block and a pressurized air source therefor. The air knife directs an airstream in a retrograde direction relative to the motion of the film to keep excess toner in the vicinity of the vacuum squeegee, to enhance its effect. The block is maintained at a potential relative to the film.
摘要翻译：用于其上形成静电潜像的细长的光导电膜介质的液体调色剂施加器包括用于支撑移动薄膜介质的上支承表面，其与具有上表面的导电块间隔开。导电块具有切割成其上表面的调色区的槽。在操作期间，加压调色剂孔通过狭槽进入膜的下表面和块的上表面之间的区域。调色剂调色潜影。上升流量调色剂溢出到流体通道中，该通道将未用于调色池的调色剂运送到流体通道中。调色剂泵从卡盘池中循环调色剂。下游形成调色区域，切入块中的另一个槽与真空源连通，以刮除与调色图像不相关的多余调色剂。来自真空刮板下游的气刀包括通过该块切割一角度的狭槽和用于其的加压空气源。气刀相对于膜的运动沿逆行方向引导气流，以将过量的调色剂保持在真空刮板附近，以增强其效果。该块被保持在相对于该胶片的电位。

3. 发明授权

US4344088A Variable-velocity film exposing and developing apparatus 失效
标题翻译：变速膜曝光显影装置
公开(公告)号：US4344088A
公开(公告)日：1982-08-10
申请号：US179424
申请日：1980-08-19
申请人： Stephen L. Corsover , Lawrence W. Dobbins , Paul B. Pierson
发明人： Stephen L. Corsover , Lawrence W. Dobbins , Paul B. Pierson
IPC分类号： G03B27/32 , H04N5/84 , H04N5/86
CPC分类号： H04N5/843 , G03B27/32
摘要： A photographic film recorder includes film-exposing apparatus having a laser light source for exposing the film, and a photographic film-developing apparatus. A film transport means transports the film at the same velocity through both the exposing apparatus and the developing apparatus, under control of a received film velocity signal. The time period each element of the film is in the developer varies inversely with film velocity. A plurality of transfer function look-up tables are provided for translating a received video density signal to a corresponding exposure signal for controlling the laser light source. Means responsive to the film velocity signal selects for use a transfer function look-up table which is appropriate for the time period each element of the film is in the developer.
摘要翻译：摄影胶片记录器包括具有用于曝光胶片的激光源的胶片曝光装置和照相胶片显影装置。胶片传送装置在接收的胶片速度信号的控制下，以相同的速度通过曝光装置和显影装置传送胶片。膜的每个元件在显影剂中的时间周期与膜速度成反比变化。提供了多个传递函数查找表，用于将接收到的视频浓度信号转换为用于控制激光光源的相应曝光信号。响应于胶片速度信号的装置选择使用传送函数查找表，其适合于电影的每个元素在显影器中的时间段。

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