Reflection type projector
    1.
    发明授权
    Reflection type projector 失效
    反射式投影仪

    公开(公告)号:US5534955A

    公开(公告)日:1996-07-09

    申请号:US424635

    申请日:1995-04-19

    IPC分类号: G03B21/08 G03B21/28 G03B21/00

    摘要: A reflection prevention film coats a backside of a stage glass by a vacuum evaporation and coating, etc. A light from a metal halide lamp is not reflected on the back of the stage glass by the reflection preventing film, and is transmitted through the stage glass and is reflected on a surface of the stage glass and a transparent manuscript. The light reflected on the surface of the stage glass and the transparent manuscript enters a projection lens unit and appears as a spot light on a screen, but because the light is not reflected on the backside of the stage glass, so that the amount of the light, which causes the spot light, can be reduced. As a result, the spot light on the screen is inconspicuous.

    摘要翻译: 反射防止膜通过真空蒸发和涂布等涂覆在台玻璃的背面。来自金属卤化物灯的光不被反射防止膜反射在舞台玻璃的背面,并且透过舞台玻璃 并且反射在舞台玻璃的表面和透明原稿上。 反射在舞台玻璃的表面上的光和透明原稿进入投影透镜单元,并在屏幕上显示为斑点光,但由于光没有反射在舞台玻璃的背面,所以, 可以减少引起点光的光。 结果,屏幕上的聚光灯不显眼。

    Overhead projector
    2.
    发明授权
    Overhead projector 失效
    难搞的项目

    公开(公告)号:US5317350A

    公开(公告)日:1994-05-31

    申请号:US034463

    申请日:1993-03-19

    IPC分类号: G03B21/132 G03B21/08

    CPC分类号: G03B21/132 Y10S353/04

    摘要: An overhead projector has a stage on which original material is placed. The stage has a Fresnel mirror. An electrostatic attracting structure is integral with the Fresnel mirror. The attracting structure includes a conductive membrane of ceramic and a resinous dielectric/protective layer. The conductive membrane consists of a pair of comb-shaped electrodes, which interfinger in coplanar fashion, and are covered by the dielectric/protective layer for insulation and protection. A power supply device applies a high voltage of direct current to the electrodes. The original material is attracted electrostatically by the electrodes, and can be kept flat on the stage. In a preferred embodiment, the power supply device incorporates a self-starting blocking oscillator, which is adapted to boost the voltage sufficiently for electrostatic attraction.

    摘要翻译: 高架投影仪具有放置原始材料的阶段。 舞台上有菲涅尔镜。 静电吸引结构与菲涅尔反射镜是一体的。 吸引结构包括陶瓷的导电膜和树脂电介质/保护层。 导电膜由一对梳状电极组成,其共同的方式连接在一起,并被绝缘和保护的电介质/保护层覆盖。 电源装置向电极施加高电压的直流电。 原材料被电极静电吸引,并可在平台上保持平坦。 在优选实施例中,电源装置包括自启动阻塞振荡器,其适于将电压充分提升以用于静电吸引。

    Projector of reflection type
    3.
    发明授权
    Projector of reflection type 失效
    反射型投影机

    公开(公告)号:US5642926A

    公开(公告)日:1997-07-01

    申请号:US715630

    申请日:1996-09-18

    摘要: A projector of a reflection type has a transparent stage plate on which a transparent original sheet is set. A lamp illuminates the original sheet through the stage plate. A Fresnel mirror is laid on an upside of the original sheet, and reflects light from the original sheet in a convergent manner. The light from the Fresnel mirror is reflected away from the stage plate. The light is again reflected, and incident upon a projecting lens, which projects an image of the original sheet to a screen. A housing contains the Fresnel mirror in movable fashion. An inserting slot is formed in the housing, into which the original sheet is inserted during supply of the original sheet. Photo sensors operate to detect a front edge of the original sheet inserted through the inserting slot. It is also detected that the original sheet is set on the stage plate. An ejector switch is operated for ejection of the original sheet. A solenoid shifts the Fresnel mirror up away from a set position in response to a signal from the photo sensors or the ejector switch. The Fresnel mirror is shifted down to the set position in response to a sheet setting signal, to lie on the original sheet. A sheet feeder roller moves the original sheet from the inserting slot to the stage plate during the supply, and moves the original sheet out of the housing during the ejection of the original sheet.

    摘要翻译: 反射型投影仪具有设置有透明原稿的透明台板。 一个灯通过舞台板照亮原稿。 菲涅耳镜被放置在原稿的上侧,并以收敛的方式反射来自原稿的光。 来自菲涅耳镜的光从舞台板反射离开。 光再次被反射并入射到投影透镜上,该投影透镜将原始片材的图像投影到屏幕上。 一个壳体以可移动的方式包含菲涅耳镜。 插入槽形成在壳体中,原稿在原稿的供给期间被插入其中。 照片传感器用于检测通过插入插槽插入的原稿的前边缘。 还检测到原稿被放置在平台上。 操作喷射器开关以排出原稿。 响应于来自光传感器或喷射器开关的信号,螺线管将菲涅耳镜向上移动远离设定位置。 菲涅耳镜响应于纸张设置信号向下移动到设定位置,位于原稿上。 供纸辊在供给期间将原稿从插入槽移动到台板,并且在原稿的弹出期间将原稿从原稿移出外壳。

    Magneto-optical recording medium and method of making the same
    5.
    发明授权
    Magneto-optical recording medium and method of making the same 失效
    磁光记录介质及其制造方法

    公开(公告)号:US4808456A

    公开(公告)日:1989-02-28

    申请号:US102848

    申请日:1987-09-30

    IPC分类号: G11B11/10 G11B7/24 G11B11/105

    CPC分类号: G11B11/10582 Y10S428/90

    摘要: A magneto-optical recording medium comprises a substrate, a magneto-optical recording layer formed of a rare earth metal-transition metal alloy and a dielectric protective layer overlaid in this order on the substrate, and a rare earth metal layer overlaid on an edge face of the magneto-optical recording layer. The magneto-optical recording medium wherein the substrate is annular is made by forming the magneto-optical recording layer, covering the recording region on the magneto-optical recording layer with an annular mask having an outer diameter not larger than the outer diameter of the magneto-optical recording layer and/or an inner diameter not smaller than the inner diameter of the magneto-optical recording layer, overlaying the rare earth metal layer on an outer edge face and/or an inner edge face of the magneto-optical recording layer by dispersing rare earth metal particles toward the annular mask, removing the annular mask, and overlaying the dielectric protective layer on the magneto-optical recording layer.

    摘要翻译: 磁光记录介质包括基板,由稀土金属 - 过渡金属合金形成的磁光记录层和在基板上依次重叠的介电保护层和覆盖在边缘面上的稀土金属层 的磁光记录层。 其中基片是环形的磁光记录介质是通过形成磁光记录层制成的,用磁光记录层上的记录区用外径不大于磁光的外径的环形掩模 - 光学记录层和/或不小于磁光记录层的内径的内径,在磁光记录层的外边缘面和/或内边缘面上覆盖稀土金属层,通过 将稀土金属颗粒分散到环形掩模,去除环形掩模,并将介电保护层覆盖在磁光记录层上。

    Optical disk substrate
    6.
    发明授权
    Optical disk substrate 失效
    光盘基板

    公开(公告)号:US4802160A

    公开(公告)日:1989-01-31

    申请号:US104271

    申请日:1987-10-05

    CPC分类号: G11B7/24 G11B7/26

    摘要: An optical disk substrate has a surface on which a pre-groove for light beam tracking is formed. Non-pregrooved regions on the substrate surface on which the pregroove is formed are subjected to surface roughing processing to improve adhesion of the substrate surface in the non-pregrooved regions to a film which is to be overlaid on the optical disk substrate.

    摘要翻译: 光盘基板具有形成用于光束跟踪的预槽的表面。 在其上形成预制槽的基板表面上的非预浸渍区域进行表面粗化处理,以改善非预浸渍区域中的基板表面与要重叠在光盘基板上的膜的粘合性。

    Magneto-optical recording medium
    7.
    发明授权
    Magneto-optical recording medium 失效
    磁光记录介质

    公开(公告)号:US4789606A

    公开(公告)日:1988-12-06

    申请号:US37884

    申请日:1987-04-13

    IPC分类号: G11B5/64 G11B11/105

    摘要: A magneto-optical recording medium comprises a transparent substrate, a magneto-optical recording layer formed on the transparent substrate and containing a rare earth metal-transition metal alloy, and a thin film containing at least either one of platinum and palladium and formed at least on one surface of the magneto-optical recording layer. Or, the magneto-optical recording medium comprises the transparent substrate, and a magneto-optical recording layer formed on the transparent substrate by alternately overlaying a plurality of thin layers containing a rare earth metal-transition metal alloy, and a plurality of thin layers containing at least either one of platinum and palladium.

    摘要翻译: 磁光记录介质包括透明基板,形成在透明基板上并含有稀土金属 - 过渡金属合金的磁光记录层,以及至少含有铂和钯中的至少一种的薄膜,至少形成 在磁光记录层的一个表面上。 或者,磁光记录介质包括透明基板和通过交替地叠加多个含有稀土金属 - 过渡金属合金的薄层而形成在透明基板上的磁光记录层,以及多个含有 铂和钯中的至少一种。

    Air-fuel ratio control circuit for an internal combustion engine
    9.
    发明授权
    Air-fuel ratio control circuit for an internal combustion engine 失效
    用于内燃机的空燃比控制电路

    公开(公告)号:US4462366A

    公开(公告)日:1984-07-31

    申请号:US475506

    申请日:1983-03-15

    CPC分类号: F02D41/1481

    摘要: An air-fuel ratio control circuit for an internal combustion engine comprising a low-pass filter, a hysteresis type comparator, and delay timer, wherein output signals from an exhaust gas sensor are transmitted through the low-pass filter to the hysteresis type comparator and then to the delay timer. A pulse motor for controlling an air-fuel ratio is driven at high speeds for a specified period of time determined by the delay timer in either forward or reverse direction which is determined by the output of the comparator at each time when the output of the comparator is inverted and is driven at low speeds after the specified period of time has elapsed, wherein the time constant of the low-pass filter is set longer than the delay time of the delay timer.

    摘要翻译: 一种用于内燃机的空燃比控制电路,包括低通滤波器,滞后型比较器和延迟定时器,其中来自废气传感器的输出信号通过低通滤波器传输到滞后型比较器, 然后到延迟定时器。 用于控制空燃比的脉冲电机在正向或反向的延迟定时器确定的指定时间段内被驱动,该延迟定时器由比较器的输出确定,每次当比较器的输出 在经过规定时间后以低速驱动,其中低通滤波器的时间常数被设定为比延迟定时器的延迟时间长。

    Electrostatic copying method for forming multiple copies
    10.
    发明授权
    Electrostatic copying method for forming multiple copies 失效
    用于形成多份拷贝的静电复印方法

    公开(公告)号:US4172722A

    公开(公告)日:1979-10-30

    申请号:US676388

    申请日:1976-04-12

    摘要: This invention provides an electrostatic copying method for forming multiple copies by repeating the process of developing an electrostatic latent image formed on an electrophotographic insulating material with a dry developer comprising electroscopic powder and carrier particles and the process of transferring the thus developed image onto a transfer sheet continuously without erasing said latent image, said carrier particles consisting of an essentially homogeneous ferromagnetic oxide having an apparent electric conductivity in the range of 10.sup.-11 -10.sup.-5 .OMEGA..sup.-1 cm.sup.-1, thereby rendering it possible to form multiple copies compared with the conventional copying methods.

    摘要翻译: 本发明提供一种静电复印方法,用于通过重复利用包含电致粉末和载体颗粒的干显影剂显影形成在电子照相绝缘材料上的静电潜像的方法来形成多个拷贝,以及将如此显影的图像转印到转印片上 连续地不擦除所述潜像,所述载体颗粒由具有在10-11-10-5欧米亚-1厘米-1范围内的表观电导率的基本上均匀的铁磁性氧化物组成,从而使得可以与 常规复印方法。