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公开(公告)号：US5467152A
公开(公告)日：1995-11-14
申请号：US234916
申请日：1994-04-28
IPC分类号： G03B21/132 , G03B21/28 , G03B23/12 , G03B23/02
CPC分类号： G03B23/125 , G03B21/132 , G03B21/28 , Y10S353/03
摘要： An improved overhead projector which allows for automated feeding of transparencies from input and output trays positioned within a body of the projector. The feed mechanism is reversible to allow previously viewed transparencies to be repositioned over a light source on a table of the projector and seen on a display screen. The transparency trays include retractable mechanisms allowing them to be switched from receiving or delivering transparencies into a feed path. An optical projection head includes an adjustable mechanism to automatically reorient a projected image for transparencies in landscape or portrait views. The adjustable mechanism includes a first mirror which is adjustable to reflect light transmitted from the light source directly from the transparency toward the display screen, or to present a thin vertical profile allowing a light image to reflect off second and third mirrors before reflecting again off the first mirror and toward the display screen. The entire feed and reorientation assemblies can be remotely controllable via a hand-held device and control system.
摘要翻译： 一种改进的高架投影仪，其允许从位于投影仪主体内的输入和输出托盘自动馈送透明胶片。 馈送机构是可逆的，以允许先前观看的透明胶片在投影仪的桌子上的光源上重新定位并且在显示屏幕上看到。 透明度托盘包括可伸缩机构，允许它们从接收或输送透明胶片切换到进给路径。 光学投影头包括可调节的机构，用于以横向或纵向视图自动重新调整投影图像的投影图像。 可调节机构包括可调整的第一反射镜，以将从光源发射的光直接从透明体反射到显示屏，或呈现薄的垂直轮廓，允许光图像反射离开第二和第三反射镜，然后再次反射 第一个镜子和朝向显示屏幕。 整个进料和重新定向组件可以通过手持式设备和控制系统进行远程控制。
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公开(公告)号：US5428416A
公开(公告)日：1995-06-27
申请号：US242175
申请日：1994-05-13
IPC分类号： G03B21/132 , G03B21/30 , G03B21/00
CPC分类号： G03B21/132 , G03B21/30 , Y10S353/03
摘要： An overhead projector includes an opening in its bottom to accommodate a pivoting mirror. This opening is closed by two doors which pivot to support the projector in use. The projector includes latches which retain the doors in the closed position and gravity cams which retain the doors in the open position, but which automatically release the doors when the projector is placed on its side.
摘要翻译： 高架投影仪在其底部包括开口以容纳枢转反射镜。 这个开口由两个门关闭，这些门枢转以支持投影机的使用。 投影机包括将门保持在关闭位置的闩锁和将门保持在打开位置的重力凸轮，但是当投影仪放置在其侧面时自动释放门。
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公开(公告)号：US5382991A
公开(公告)日：1995-01-17
申请号：US242291
申请日：1994-05-13
IPC分类号： G03B21/132 , G03B21/30 , G03B21/00
CPC分类号： G03B21/30 , G03B21/132 , Y10S353/03
摘要： A mounting for the projection head of an overhead projector allows the head to pivot through an arc of 90.degree. between a position for operation and a position for transportation. A position lock secures the projection head in either of the two positions.
摘要翻译： 用于高架投影仪的投影头的安装件允许头部在操作位置和运输位置之间枢转90度的弧度。 位置锁将投影头固定在两个位置中的任一位置。
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公开(公告)号：US5325137A
公开(公告)日：1994-06-28
申请号：US935946
申请日：1992-08-27
申请人： Toshio Konno , Shintaro Nakagaki , Ichiro Negishi , Tetsuji Suzuki , Fujiko Tatsumi , Ryusaku Takahashi
发明人： Toshio Konno , Shintaro Nakagaki , Ichiro Negishi , Tetsuji Suzuki , Fujiko Tatsumi , Ryusaku Takahashi
IPC分类号： G03B21/132 , H04N9/31 , G03B21/28
CPC分类号： G03B21/132 , H04N9/3102 , Y10S353/03
摘要： An overhead projector for irradiating a spatial light modulator with reading light to read out a subject image written in the spatial light modulator with writing light and projecting the subject image read out with the reading light, wherein the spatial light modulator consists of photoconductive layer for receiving the writing light coming from a subject to reproduce the subject image, light modulating layer formed by a liquid crystal of which molecules are arranged in a homeotropic orientation for modulating the reading light of which a waveband is limited to a prescribed range according to the subject image reproduced in the photoconductive layer, and a dielectric mirror having wavelength selectivity for reflecting the reading light with the waveband modulated by the light modulating layer.
摘要翻译： 一种用于用读取光照射空间光调制器的高架投影仪，用写入光读出写在空间光调制器中的被摄体图像，并投射用读取光读出的被摄体图像，其中空间光调制器由用于接收的光电导层 来自被摄体的写入光再现被摄体图像，由其分子以垂直取向排列的液晶形成的光调制层，用于根据被摄体图像将波段限制在规定范围内的读取光 在光电导层中再现的介质镜和具有由光调制层调制的波段反射读取光的波长选择性的介电镜。
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公开(公告)号：US5231434A
公开(公告)日：1993-07-27
申请号：US861284
申请日：1992-03-31
IPC分类号： G03B21/132
CPC分类号： G03B21/132 , Y10S353/03
摘要： An overhead projector (OHP) presentation system uses a liquid crystal display (LCD) panel to project electronically stored graphic images. The OHP preferably includes an integrated computer having a plurality of output ports for connection to various peripheral devices. A novel interface card is also used to provide electrical connections between the computer and the LCD panel, providing the further benefit of aligning the transmissive portion of the panel with the stage of the overhead projector.
摘要翻译： 高架投影仪（OHP）演示系统使用液晶显示器（LCD）面板来投影电子存储的图形图像。 OHP优选地包括具有用于连接到各种外围设备的多个输出端口的集成计算机。 新颖的接口卡还用于在计算机和LCD面板之间提供电连接，提供将面板的透射部分与高架投影仪的平台对准的进一步的益处。
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公开(公告)号：US5059020A
公开(公告)日：1991-10-22
申请号：US625312
申请日：1990-12-10
申请人： Jean A. Genieis
发明人： Jean A. Genieis
IPC分类号： G03B21/132 , G03B27/62
CPC分类号： G03B21/132 , G03B27/6264 , Y10S353/03 , Y10S353/05
摘要： A device of the invention is associated with a projector including a horizontal platform on which document sheets are placed one after the other in order to project images thereof on a screen. The device includes two removable cassettes each fitted with levers carried by respective shafts actuated by respective electromagnets. Above the leading edge of each cassette there are two transverse shafts carrying return pulleys over which belts pass for driving the top document from a stack of documents in the cassette. The device includes a horizontal plate which is positioned in alignment with the platform of the projector. An application lies in projecting images during a lecture.
摘要翻译： 本发明的装置与投影仪相关联，该投影仪包括水平平台，文档片材一个接一个地放置在该水平平台上，以便将图像投影在屏幕上。 该装置包括两个可拆卸的盒，每个可拆卸的盒都装有由相应的电磁铁驱动的相应轴承载的杆。 在每个盒的前缘上方有两个横向轴，带有返回皮带轮，皮带通过，用于从盒中的一叠文件驱动顶部文件。 该装置包括与投影仪的平台对准定位的水平板。 应用程序在于在演讲中投影图像。
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公开(公告)号：US4976429A
公开(公告)日：1990-12-11
申请号：US281252
申请日：1988-12-07
申请人： Dietmar Nagel
发明人： Dietmar Nagel
CPC分类号： G03B21/00 , A63F13/08 , A63F13/25 , G03B21/006 , G06F3/033 , Y10S353/03
摘要： A portable, hand-held display and control apparatus for operatively demountably receiving an interactive electronic video game module includes a housing formed of a central body and a pair side-mounted, outwardly-extending arms by which the housing is grasped by a user. Illuminating elements within the housing project images from a substantially transparent screen of the video game module onto a remote viewing and display surface. A plurality of switches and like control elements on the housing arms are user-actuatable for interactive control of the video game.
摘要翻译： 用于可操作地拆卸地接收交互式电子游戏模块的便携式手持式显示和控制装置包括由中心体和一对侧面安装的向外延伸的臂形成的壳体，通过该臂由使用者抓住壳体。 外壳内的照明元件从视频游戏模块的基本上透明的屏幕将图像图像显示在远程观看和显示表面上。 壳体臂上的多个开关和类似的控制元件是用户可致动的，用于视频游戏的交互控制。
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公开(公告)号：US4968134A
公开(公告)日：1990-11-06
申请号：US367052
申请日：1989-06-16
申请人： Kenichi Shimizu , Shigeru Suzuki , Kazuaki Iizuka
发明人： Kenichi Shimizu , Shigeru Suzuki , Kazuaki Iizuka
IPC分类号： G03B21/132
CPC分类号： G03B21/132 , Y10S353/03
摘要： An overhead projector comprises, a main body, a light source disposed in the main body for emitting a light, a Fresnel lens disposed on an upper surface of the main body, an internal mirror for reflecting the emitted light toward the Fresnel lens, disposed rotatably in the main body such that a portion of the internal mirror is protruded from a bottom of the main body to an outside of the main body upon a use of the projector and is accommodated in the main body upon a non-use of the projector, an arm connected with the main body at one longitudinal end thereof, a projection lens held by the other longitudinal end of the arm for focusing the reflected light which has passed through the Fresnel lens and an original for a projection placed on the Fresnel lens, and a projection mirror for directing the focused light from the projection lens toward a screen.
摘要翻译： 高架投影仪包括主体，设置在主体中用于发光的光源，设置在主体上表面的菲涅耳透镜，用于将发射的光反射到菲涅尔透镜的内反射镜，可旋转地 在主体中使得内镜的一部分在使用投影仪时从主体的底部突出到主体的外部，并且在不使用投影仪时被容纳在主体中， 在主体的一个纵向端与主体连接的臂，由臂的另一纵向端部保持的投影透镜，用于聚焦已经通过菲涅耳透镜的反射光和用于放置在菲涅耳透镜上的投影的原稿，以及 用于将来自投影透镜的聚焦光引导到屏幕的投影镜。
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公开(公告)号：US4952053A
公开(公告)日：1990-08-28
申请号：US234592
申请日：1988-08-22
申请人： Karl-Gunther Behr
发明人： Karl-Gunther Behr
IPC分类号： G03B21/132 , G03B21/20
CPC分类号： G03B21/132 , Y10S353/03
摘要： The invention concerns a transparency overhead projector having an illumination unit of which the height has been extremely reduced. The main component of the illumination unit is a specular surface comprising mutually parallel, mirrorized prismatic shoulders either on its top or on its lower side, which reflect the light from at least one lateral source toward the Fresnel lens, the platen and the projecting lens. The specular surface may be plane, however it may also be curved in circular, hyperbolic etc. manner in the longitudinal direction of the prismatic shoulders. This curvature may be constant or it may vary. Further, the specular surface also may be twisted, that is, it may also be curved in a direction orthogonal to the prismatic shoulders, and this curvature also may be constant or variable. However the prism angles of the individual prismatic shoulders are always individually determined so that the light shall appear to come from a source which seems to be mounted centrally along the optical axis underneath the Fresnel lens.
摘要翻译： 本发明涉及具有高度已经极大降低的照明单元的透明度高架投影仪。 照明单元的主要部件是镜面，其包括在其顶部或其下侧上相互平行的镜像棱镜肩部，其反射来自至少一个侧向光源的光朝向菲涅尔透镜，压板和投影透镜。 镜面可以是平面的，但是也可以在棱镜肩的纵向上以圆形，双曲线等方式弯曲。 该曲率可以是恒定的，也可以是变化的。 此外，镜面也可以是扭曲的，也就是说，它也可以在与棱镜肩正交的方向上弯曲，并且该曲率也可以是恒定的或可变的。 然而，各个棱柱肩的棱镜角度总是单独确定，使得光应该看起来似乎是沿着菲涅耳透镜下方的光轴中心地安装的源。
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公开(公告)号：US4944586A
公开(公告)日：1990-07-31
申请号：US444000
申请日：1989-11-30
申请人： Bruce M. Rightmyre
发明人： Bruce M. Rightmyre
IPC分类号： G03B21/132
CPC分类号： G03B21/132 , Y10S353/03 , Y10S353/05
摘要： A cassette web transport mechanism is placed upon an overhead image projector. Multiple overhead projector slides are conveniently secured in a roll of the web. The web is moved in forward or reverse direction by remote control in order to display the desired slide through the projector.
摘要翻译： 盒式磁带传送机构放置在架空图像投影仪上。 多个高架投影仪幻灯片方便地固定在卷筒纸上。 通过遥控器将纸张向前或向后移动，以便通过投影机显示所需的幻灯片。
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