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    • 75. 发明授权
    • Image forming apparatus with transfer material guide
    • 具有转印材料导轨的成像设备
    • US06678494B2
    • 2004-01-13
    • US10097444
    • 2002-03-14
    • Hiroshi KidaHirokazu YamauchiYoshiaki Masuda
    • Hiroshi KidaHirokazu YamauchiYoshiaki Masuda
    • G03G1516
    • G03G15/657G03G15/167
    • An object of the invention is to convey a transfer material properly and securely in a simple structure even where space allowance is limited. An image forming apparatus has a photoconductive body and a transfer device composed of a transfer roller. After a developer image formed on the photoconductive body is electrostatically transferred onto a sheet by the transfer roller, a rear end of the sheet having passed through opposed regions of the transfer roller and the photoconductive body is, by a guiding roller arranged at a downstream side of the opposed portions along a sheet conveying path, guided in conveyance from a non-transferred surface of the transfer material so that it is kept out of contact with the transfer roller.
    • 本发明的目的是即使在限制空间容限的情况下,也能以简单的结构适当且牢固地传送转印材料。 图像形成装置具有感光体和由转印辊构成的转印装置。 在形成在感光体上的显影剂图像通过转印辊静电转印到片材上之后,通过布置在下游侧的引导辊,通过转印辊和感光体的相对区域的片材的后端 沿着纸张传送路径的相对部分,从传送材料的未转印表面导出,以使其与转印辊不接触。
    • 76. 发明授权
    • Sheet discharge processing device
    • 片材放电处理装置
    • US5868387A
    • 1999-02-09
    • US719212
    • 1996-09-25
    • Hiroshi KidaNorio HontaniMasanori KatoMasanori TakedaKiyohide Ochi
    • Hiroshi KidaNorio HontaniMasanori KatoMasanori TakedaKiyohide Ochi
    • G03G15/00B65H15/00B65H29/00B65H29/58B65H29/60B65H39/10
    • B65H15/00B65H29/008B65H29/58B65H2301/44822B65H2404/611B65H2404/6111
    • First and second switchback convey paths are arranged to be symmetrical about the convey path between an inlet and a discharge path. First and second detection sensors are arranged on the first and second switchback convey paths, respectively, to detect sheets conveyed therein. A switching gate is rotatably placed between the respective convey paths. The switching gate is constituted by a first reverse guide path for causing the inlet to communicate with the first switchback convey path and also causing the discharge path to communicate with the first switchback convey path, and a second reverse guide path for causing the discharge path to communicate with the second switchback convey path and also causing the inlet to communicate with the second switchback convey path. The switching gate is switched in a state wherein the trailing end of a conveyed sheet is detected by the first detection sensor on the first switchback convey path, but no sheet is detected by the second detection sensor on the second switchback convey path. With this operation, switching control can be accurately performed without leaving the trailing end of a sheet in any of the guide paths of the switching gate.
    • 第一和第二回转输送路径布置成关于入口和排出路径之间的输送路径对称。 第一和第二检测传感器分别布置在第一和第二转回传送路径上,以检测在其中传送的纸张。 开关门可旋转地设置在相应的输送路径之间。 切换闸门由第一反向引导路径构成,用于使入口与第一回转输送路径连通并且还使排出路径与第一回转输送路径连通;以及第二反向引导路径,用于使排出路径 与第二转向输送路径通信,并且还使得入口与第二回转输送路径连通。 在第一回转输送路径上的第一检测传感器检测到传送的纸张的后端,但是在第二转回传送路径上没有检测到第二检测传感器的纸张的状态下,切换门被切换。 通过这种操作,可以精确地执行切换控制,而不将片的尾端留在切换门的任何引导路径中。
    • 77. 发明授权
    • Color projection type display apparatus having three liquid displays of
same structure
    • 具有三个相同结构的液体显示器的彩色投影型显示装置
    • US5691785A
    • 1997-11-25
    • US659562
    • 1996-06-10
    • Masahiro UsuiHiroshi KidaShinsuke ShikamaMitsushige Kondo
    • Masahiro UsuiHiroshi KidaShinsuke ShikamaMitsushige Kondo
    • G02B27/28H04N9/31G02F1/1335
    • H04N9/3105G02B27/283H04N9/3167
    • The present invention provides a color projector utilizing three liquid crystal display elements. The natural light is separated into illuminating rays of red, green and blue colors by a dichroic mirror, each of these illuminating rays being used to illuminate the corresponding one of the liquid crystal display elements. Each of the liquid crystal display elements is controlled by a desired image signal with respect to its transmittance at each pixel. After passed through the liquid crystal display elements, three kinds of colored illuminating rays are again synthesized by the other dichroic mirror to form a light beam which in turn is enlarged and projected by a projecting lens on a screen. By providing light source means including means for converting the natural light into the linearly polarized beam, the illuminating rays may have their polarizing angles coincide with each other without any loss of light. As the linearly polarized beam is reflected by the mirror system, the illuminating rays of red, green and blue colors are changed with respect to their polarizing angels. Depending on the changed polarizing angles, the polarizing angle of the light rays incident on each of the liquid crystal display elements may be adjusted to remove any loss of light.
    • 本发明提供一种利用三个液晶显示元件的彩色投影仪。 通过二向色镜将自然光分离为红色,绿色和蓝色的照射光,这些照射光用于照射相应的一个液晶显示元件。 每个液晶显示元件通过相对于其在每个像素处的透射率的期望的图像信号来控制。 在通过液晶显示元件之后,再次通过另一个分色镜合成三种彩色照明光线,以形成光束,该光束又由投影透镜放大并投影在屏幕上。 通过提供包括用于将自然光转换成线偏振光束的装置的光源装置,照射光线可以使它们的偏振角度彼此一致而没有任何光损失。 当线偏振光束被反射镜系统反射时,红色,绿色和蓝色的照明光线相对于其极化天使而改变。 根据变化的偏振角,可以调整入射到每个液晶显示元件上的光线的偏振角,以消除任何光的损失。
    • 78. 发明授权
    • Projection display device
    • 投影显示设备
    • US5622418A
    • 1997-04-22
    • US409822
    • 1995-03-24
    • Akira DaijogoHiroshi KidaShinsuke Shikama
    • Akira DaijogoHiroshi KidaShinsuke Shikama
    • F21V21/10H04N9/31G03B21/14
    • G03B21/16G03B21/2026G03B21/2053G03B33/12H04N9/3105H04N9/3144H04N9/315H04N9/3152
    • A projection display device comprises: a diaphragm for the illuminating system disposed in the vicinity of a focal point of the light collected by the concave mirror; a collimation lens for rendering parallel the light passing through the aperture of the first diaphragm; a scattering-type liquid crystal light valve for forming forming image on its displaying surface; a field lens for converging the light rendered parallel by the collimation lens; a projection lens having an entrance pupil disposed in the vicinity of a focal point of the light converged by the field lens; and a second diaphragm having an aperture and provided in the projection lens. An aperture varying section of the first diaphragm varies the aperture diameter of the diaphragm of the illuminating system, and the other aperture varying section varies the aperture diameter of the diaphragm of the projection lens, thereby varying the diameter of an entrance pupil.
    • 一种投影显示装置,包括:用于照明系统的隔膜,设置在由凹面镜收集的光的焦点附近; 用于使平行于穿过第一隔膜的孔的光平行的准直透镜; 用于在其显示表面上形成成像图像的散射型液晶光阀; 用于会聚由准直透镜平行渲染的光的场透镜; 投影透镜,其具有设置在由所述场透镜会聚的光的焦点附近的入射光瞳; 以及具有孔径并设置在投影透镜中的第二光阑。 第一光阑的光圈变化部分改变照明系统的光阑的孔径,另一个光圈变化部分改变投影透镜的光阑的孔径直径,从而改变入射光瞳的直径。