公开(公告)号：US4368964A

公开(公告)日：1983-01-18

申请号：US176148

申请日：1980-08-07

申请人： Ulf R. Carlson

发明人： Ulf R. Carlson

IPC分类号： G03B21/00 ,  G03B23/04 ,  G03B23/08

CPC分类号： G03B23/042

摘要： The invention relates to a slide projector with automatic slide changer and stationary slide magazines (10,11) on each side of the optical pathway of the projector, the respective slide magazine (10,11) provided in the shortside with a feed and discharge opening for slide frames (8) which is located in the focal plane of the slide projector. Between the slide magazines (10,11) a slide frame transport device is located, which consists of two toothed belts (2,3) provided with external dog members (7) for transporting the slide frames (8) from one slide magazine (10) to the other (11), and vice versa. In the projection position of the slide projector support members (12,13 and, respectively, 16,17) facing to the toothed belts (2,3) are provided for the slide frames (8). Levers (20,21) are provided behind the toothed belts (2,3) directly in front of the respective slide magazine (10,11) for inserting the slide frames (8).

摘要翻译： 本发明涉及一种具有自动滑动变换器和在投影机的光学路径的每一侧上的固定滑动式杂志（10,11）的幻灯片投影仪，分别设置在短边的滑动盒体（10,11）具有进给和排出口 对于位于幻灯机的焦平面中的滑动框架（8）。 在滑架（10,11）之间，设置有一个滑动框架输送装置，它由两个齿形带（2,3）组成，该齿形带设置有用于将滑动框架（8）从一个滑动盒（10） ）到另一个（11），反之亦然。 在滑动框架（8）上设置面向齿形带（2,3）的滑动投影仪支撑构件（12,13和分别为16,17）的突出位置。 杆（20,21）直接位于相应的滑动仓（10,11）前方的带齿带（2,3）的后面，用于插入滑动框架（8）。

公开(公告)号：US4247184A

公开(公告)日：1981-01-27

申请号：US33354

申请日：1979-04-26

申请人： Robert M. Peterson

发明人： Robert M. Peterson

IPC分类号： G03B21/11 ,  G03B23/08

CPC分类号： G03B21/116

摘要： A microfilm reader with a projection system through which individual images on a piece of microfiche can be projected through a viewing screen. The reader has a base structure on which is mounted a carriage assembly which holds the microfilm and is mounted for horizontal movement relative to the base structure. A series of magnets mounted on the carriage assembly and base structure causes the carriage assembly to be magnetically held in predetermined positions. In one embodiment the predetermined magnetically held positions are identical to the distances between the individual images on the microfiche whereby images from the microfiche can be precisely positioned on the screen without the operator viewing the image on the screen.

摘要翻译： 具有投影系统的缩微胶片阅读器，通过该投影系统可以通过观看屏幕投影一片缩微胶片上的各个图像。 阅读器具有基座结构，在该基座上安装有支架微缩胶片的滑架组件，并安装成相对于底座结构水平移动。 安装在托架组件和基座结构上的一系列磁体使托架组件磁力保持在预定位置。 在一个实施例中，预定的磁力保持位置与缩微胶卷上的各个图像之间的距离相同，从而来自缩微胶片的图像可精确地定位在屏幕上，而不需要操作者在屏幕上观察图像。

公开(公告)号：US4185901A

公开(公告)日：1980-01-29

申请号：US849898

申请日：1977-11-09

申请人： Karl-Gunter Behr

发明人： Karl-Gunter Behr

IPC分类号： G03B21/625 ,  G03B21/60 ,  G03B21/28 ,  G03B23/08

CPC分类号： G03B21/625

摘要： A reading device for viewing microfilms, transparencies, fiches, and the like, comprising a plate-shaped projection screen made of transparent material supported on a frame structure with the projection screen disposed in a slanted position relative to the horizontal. The screen has on the viewing side a frosted surface and on the opposite side prism-shaped parts. A source of light is disposed into the frame structure beneath a carrier for placing an article to be projected thereon. A mirror assembly is disposed in the frame structure to reflect light rays passed from the light source through the article to the prism-shaped parts and through the projection screen. The prism-shaped parts are disposed in lengthwise rows and have prism surfaces extending at an angle with respect to the opposite side of the projection screen for deflecting the light rays reflected from the mirror assembly so as to project an image of the article within an angle converging toward a viewer situated above and in front of the screen. The prism surfaces progressively increase from the lower end of the screen through the upper end of the screen to provide substantially uniform illumination.

摘要翻译： 一种用于观看微缩胶片，透明胶片，折痕等的读取装置，包括由支撑在框架结构上的透明材料制成的板状投影屏幕，其中投影屏幕相对于水平面倾斜设置。 屏幕在观察侧具有磨砂表面，并且在相对侧的棱镜形部件上。 光源被放置在载体下方的框架结构中，用于放置待投影的物品。 反射镜组件设置在框架结构中以将从光源通过的光线通过物品反射到棱镜形部分并通过投影屏幕。 棱柱形部分设置在纵向列上并且具有相对于投影屏幕的相对侧以一定角度延伸的棱镜表面，用于偏转从反射镜组件反射的光线，以将物品的图像投影在一定角度内 会聚到位于屏幕上方和前方的观察者。 棱镜表面从屏幕的下端逐渐增加通过屏幕的上端，以提供基本均匀的照明。

公开(公告)号：US4184764A

公开(公告)日：1980-01-22

申请号：US917178

申请日：1978-06-20

申请人： David C. Bailey ,  Robert E. Klein

发明人： David C. Bailey ,  Robert E. Klein

IPC分类号： G03B27/60 ,  G03B27/58 ,  G03B23/08

CPC分类号： G03B27/60

摘要： A film supporting and positioning system includes a film holding or gripping head for engaging an edge portion of the film and supporting the same in a cantilever fashion. The gripping head may include a frictional contact gripping arrangement or a vacuum head by which the film is held along one edge thereof. The gripping head is displaceable in a plurality of orthogonal directions so that the film may be inserted into and oriented relative to the image plane of an optical recording/reproducing system. In the vicinity of this image plane, a film support bearing is provided, in order that a prescribed region of the film, in which information may be recorded may be properly irradiated by a light beam. Preferably, the film support bearing is provided by a fluid bearing platen which is thermodynamically non-throttling.

摘要翻译： 薄膜支撑和定位系统包括用于接合薄膜的边缘部分并以悬臂方式支撑薄膜的薄膜保持或夹持头。 夹头可以包括摩擦接触夹持装置或真空头，通过该真空头，膜沿其一个边缘被保持。 夹持头可在多个正交方向上移动，使得胶片可以插入光学记录/再现系统的图像平面并相对于光学记录/再现系统的图像平面定向。 在该图像平面附近，设置膜支撑轴承，以便可以通过光束适当地照射可以记录信息的胶片的规定区域。 优选地，薄膜支撑轴承由热力学非节流的流体轴承压板提供。

公开(公告)号：US4174890A

公开(公告)日：1979-11-20

申请号：US872093

申请日：1978-01-25

申请人： Delmar R. Johnson ,  John R. Flint ,  Thomas R. Wells ,  Rolf B. Erikson ,  Bruce A. Rady

发明人： Delmar R. Johnson ,  John R. Flint ,  Thomas R. Wells ,  Rolf B. Erikson ,  Bruce A. Rady

IPC分类号： G03B21/11 ,  G06K17/00 ,  G03B23/08 ,  G03B21/14 ,  G03B23/12 ,  G06K7/00

CPC分类号： G03B21/11 ,  G06K17/0019

摘要： An electronically controlled photographic image utilization device is arranged to transport a roll of microfilm having all images printed thereon in separate photographic areas, each area being arranged in a microfiche-type format. The photographic image utilization device has an automatic call-up feature so that any given photographic area may be selected in a first dimension and projected responsive to the push of a button, the operation of a rotary switch or both. A special bar code is printed along the edge of the film and used in conjunction with a closed loop film control system to eliminate the need for precise, clock-controlled synchronization between the film transport and the code reading. Preferably, the bar code is read by optical electronic sensors. Responsive thereto, the electronic control system accurately positions a selected photographic image, on the microfilm, within a viewing area. Thereafter, and while the film transport is being held stationary, any image on the microfilm may be selected for projection by a manual movement in second and third dimensions of a simple lens positioning mechanism which is small, compact, and easily moved. The reader may also be operated manually so that the automatic controls may be bypassed, if desired.

摘要翻译： 电子控制的摄影图像利用装置被布置成将具有印刷在其上的所有图像的一卷缩微胶片输送到单独的照相区域中，每个区域以缩微胶片型格式排列。 摄影图像利用装置具有自动呼叫特征，使得可以在第一维度中选择任何给定的拍摄区域，并且响应于按钮的按下，旋转开关的操作或两者而投射。 沿胶片边缘印有特殊的条形码，并与闭环胶卷控制系统一起使用，以消除电影传输和代码读取之间精确的时钟控制同步的需要。 优选地，条形码由光学电子传感器读取。 响应于此，电子控制系统将所选择的摄影图像精确地定位在可视区域内的微缩胶片上。 此后，当胶片传送被保持静止时，可以通过在尺寸小，紧凑且容易移动的简单透镜定位机构的第二和第三尺寸中通过手动移动来选择缩微胶卷上的任何图像。 读取器也可以手动操作，以便如果需要可以绕过自动控制。

公开(公告)号：US4168887A

公开(公告)日：1979-09-25

申请号：US897748

申请日：1978-04-17

申请人： George J. Yevick

发明人： George J. Yevick

IPC分类号： G03B21/11 ,  G03B23/08

CPC分类号： G03B21/116

摘要： An indexing construction for microfiche elements of the type wherein the microfiche is provided with integral lens elements to define a lensfiche. The improvement comprises altering surface(s) of the microfiche to thereby define a plurality of indexing nodules. These nodules cooperate with complementary nodules on either a viewing screen or a hardness member. By virtue of this construction both alignments of the lensfiche and indexing thereof relative to a viewing screen are facilitated.

摘要翻译： 用于这种类型的缩微胶片元件的分度结构，其中缩微胶片具有用于限定透镜的整体透镜元件。 该改进包括改变缩微胶片的表面，由此限定多个分度结节。 这些结节与观察屏幕或硬度部件上的互补结节配合。 由于这种结构，镜片的相对和观看屏幕的两个对准方式都比较容易。

公开(公告)号：US4165162A

公开(公告)日：1979-08-21

申请号：US826551

申请日：1977-08-22

申请人： Gerald J. Frey

发明人： Gerald J. Frey

IPC分类号： G03B23/12 ,  G03B23/08

CPC分类号： G03B23/125

摘要： A slide magazine insertable in a side opening in a slide projector and comprising a plastic body with a continuous rail having two elongated sidewalls and two arcuate endwalls, and a cross-plate giving the body an H-shaped transverse cross-section. A grooved drive shaft is rotatably mounted within one arcuate endwall, and a plurality of plastic slide holders are slidably mounted on the rail, each having a dovetail-like notch in its inner side receiving the rail, two detent fingers extending toward each other on the inner side of the rail, and a slotted slide-holding frame on the outer side. The magazine body is divided into relatively movable end sections that are urged together by a spring for pressing the stack of holders toward the shaft, and the track is shaped to tilt the holders toward the shaft for positive pick-up of the detent fingers by the grooves in the shaft, to feed the holders around the rail, the grooves and the fingers having mating V-shaped cross-sections. Slideways span the gaps in the rail between the end sections to support the holders across the gaps, through the fingers, independently of the rail.

摘要翻译： 插入幻灯投影仪侧面开口中的滑动盒，包括具有连续轨道的塑料体，其具有两个细长侧壁和两个弧形端壁，以及向主体提供H形横截面。 一个带槽的驱动轴可旋转地安装在一个弧形端壁内，并且多个塑料滑动架可滑动地安装在轨道上，每个在其轨道上的内侧具有燕尾形的槽口，两个棘爪指状物 轨道的内侧和外侧的开槽滑动保持框架。 药盒主体被分成相对可动的端部部分，其通过弹簧推动在一起，用于将保持器堆叠朝向轴按压，并且轨道成形为使支架朝向轴倾斜，以通过 轴中的凹槽，以使托架围绕导轨进给，凹槽和手指具有配合的V形横截面。 滑道跨越端部部分之间的轨道中的间隙，以跨越间隙，通过手指支撑支架，而与导轨无关。

公开(公告)号：US4140376A

公开(公告)日：1979-02-20

申请号：US777772

申请日：1977-03-15

申请人： Peter J. Hall

发明人： Peter J. Hall

IPC分类号： G03B21/11 ,  G03B23/08 ,  G03B21/20

CPC分类号： G03B21/115

摘要： A microfiche reader according to the present invention includes a housing consisting of a hood portion and a base portion, a screen located within the hood portion and visible through the front end of the hood, a combined microfiche carriage and index holder, a lens assembly and a projection system. The combined microfiche carriage and index holder serves to accurately locate the microfiche with respect to the index grid. By reason of the fact that there is no relative movement between the index grid and the microfiche in use, it is always possible to accurately locate the microfiche with respect to the projection system by reference to the index grid. The index grid is illuminated by an index illuminating lens carried by the housing. The illuminating lens is located in a fixed relationship with respect to the projection path which again contributes to the facility with which the microfiche may be accurately located in the projection path. The lens assembly includes a support plate mounted above the microfiche carriage and a slide member mounted in the support plate and a pair of lens members mounted in the slide members so that either one may be located in the projection path as required. The projection system includes a demountable modular unit which may be easily mounted in and removed from the housing. A prefocussed lamp is mounted on the modular unit and the position of the prefocussed lamp with respect to the modular unit may be adjusted so as to vary the length of the illuminating path between the prefocussed lamp and the condenser means whereby the optical system may be adjusted to accommodate objective lenses having different characteristics. The projection system consists of a prefocussed lamp which projects a beam of light onto a cold mirror which reflects the beam of light through an optical condenser which in turn directs the beam of light through the microfiche to an objective lens mounted thereabove. A first surface mirror is mounted in the housing and reflects the beam of light emitted from the objective lens to a viewing screen mounted in the housing. The viewing screen consists of a unitary body of molded plastics material having an image receiving surface formed with a concave spherical curvature. The image receiving surface may be plated with a suitable coating to form an image reflecting coating thereon.

公开(公告)号：US4128319A

公开(公告)日：1978-12-05

申请号：US831566

申请日：1977-09-08

申请人： Ernest J. Clarke

发明人： Ernest J. Clarke

IPC分类号： G03B21/11 ,  G03B23/08 ,  G03B1/48

CPC分类号： G03B21/115

摘要： A cover plate for a microform reader. The reader includes a carrier for holding a microform, with the cover plate being pivotally mounted on the carrier for movement between open and closed positions. A spring interconnects the cover plate and the carrier and coacts with an inclined surface in the reader to progressively add energy to the spring as the carrier is moved to a first position from a second position to enable the spring to automatically lift the cover plate as the carrier is moved towards the first position to permit the removal and insertion of a microform in the carrier.

摘要翻译： 用于微型读卡器的盖板。 阅读器包括用于保持微型镜的载体，其中盖板可枢转地安装在载体上以在打开和关闭位置之间移动。 当载体从第二位置移动到第一位置时，弹簧将盖板和载体互连并与读取器中的倾斜表面共同作用，以逐渐向弹簧增加能量，以使得弹簧能够自动提升盖板 载体移动到第一位置以允许在载体中移除和插入微型体。

公开(公告)号：US4094599A

公开(公告)日：1978-06-13

申请号：US826550

申请日：1977-08-22

申请人： Gerald J. Frey

发明人： Gerald J. Frey

IPC分类号： G03B21/20 ,  G03B23/12 ,  G03B1/48 ,  G03B23/08

CPC分类号： G03B21/2093 ,  G03B23/125

摘要： A slide projector for use with magazines of the flexible type in which slides are supported for movement around a closed-loop path and are swingable one by one into and out of a slide-projection station about an axis defined by a rotary drive shaft. The magazine has individual clip-type slide-holding elements that slide along an endless path and have frames in which slides are held. A condensing lens is mounted and guided for movement from a normal operating position close to the slide-projection station and in the path of the slides, to a retracted position out of the path, with a combined reciprocating and swinging motion, and is moved back and forth by a rotary crank mechanism that is driven by the slide-feeding mechanism, to shift the lens rapidly out of and back into the operating position during each slide change, with a dwell in the retracted position for the change.

摘要翻译： 一种用于柔性类型的幻灯片放映机，其中滑块被支撑以围绕闭环路径运动，并且可绕着由旋转驱动轴限定的轴线一个一个地摆放到滑动投影站中。 杂志具有单独的夹式滑动保持元件，其沿着无尽路径滑动并且具有保持滑块的框架。 聚光透镜被安装和引导，以便从靠近滑动投影台的正常操作位置移动并且在滑块的路径中移动到缩回位置，通过组合的往复和摆动运动，并且被移回 并且通过由滑动进给机构驱动的旋转曲柄机构，在每次滑动更换期间将透镜快速移开并返回到操作位置，同时停留在缩回位置以进行改变。