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    • 16. 发明授权
    • Multi-beam scanning device
    • 多光束扫描装置
    • US06636340B1
    • 2003-10-21
    • US09619692
    • 2000-07-19
    • Yoshihiro HamaYasushi SuzukiTaminori OdanoSusumu Mikajiri
    • Yoshihiro HamaYasushi SuzukiTaminori OdanoSusumu Mikajiri
    • G02B2608
    • H04N1/506G02B26/123
    • A multi-beam scanning device is provided with a light source that emits a plurality of light beams, a polygonal mirror that deflects the light beams emitted by the light source to scan, and an optical system that converges the deflected light beams on a plurality of objects to be scanned. The optical system includes an optical path turning system that turns optical paths of the deflected light beams, respectively. The optical path turning system is constructed such that optical path lengths of the optical path of the deflected light beams are the same, and one of the optical paths directed to an object located farthest from the polygonal mirror consists of two linear paths and one turning portion at which a beam is deflected.
    • 多光束扫描装置设置有发射多个光束的光源,使由光源发射的光束偏转扫描的多面镜,以及将偏转的光束会聚在多个光束上的多个光束 要扫描的对象 光学系统包括分别转动偏转光束的光路的光路转向系统。 光路转向系统被构造为使得偏转光束的光路的光路长度相同,并且指向位于离多面镜最远的物体的光路中的一个由两条直线路径和一个转向部分组成 光束偏转。
    • 18. 发明授权
    • Liquid crystal device with plural ferroelectric or antiferroelectric
layer tilt angles per pixel
    • 每个像素具有多个铁电或反铁电层倾斜角的液晶装置
    • US5764328A
    • 1998-06-09
    • US793462
    • 1997-02-26
    • Sachiko KawadaYasushi SuzukiShinya KondoRintarou Takahashi
    • Sachiko KawadaYasushi SuzukiShinya KondoRintarou Takahashi
    • G02F1/1337G02F1/141G02F1/13
    • G02F1/133753G02F1/1416G02F2001/133761
    • A liquid crystal device used for electro-optical devices, in which each parameter of the liquid crystal having layer structures is specified to provide a liquid crystal high in stress resistance and capable of gray scale display. The liquid crystal held between a pair of parallel substrates is either ferroelectric or antiferroelectric and represents layer structures. A plurality of substrate interface tilt angles can be set for the layer structures. The layer structures can be configured asymmetric or symmetric about a plane intermediate between the parallel substrates. With this configuration, a liquid crystal device is constructed having a plurality of layer structures including at least one layer structure, which has (1) a substrate interface layer tilt angle of 0.degree. to 3.degree. and the c director pretilt of 3.degree. to 5.degree., or (2) a substrate interface layer tilt angle of 4.degree. to 7.degree. and the c director pretilt of 0.degree. to 3.degree., or (3) a substrate interface layer tilt angle of 8.degree. to 20 .degree. and the c director pretilt of 9.degree. to 90.degree. or less.
    • PCT No.PCT / JP96 / 01834 Sec。 371日期1997年2月26日 102(e)日期1997年2月26日PCT提交1996年7月2日PCT公布。 出版物WO97 / 02510 日期1997年1月23日用于电光装置的液晶装置,其中具有层结构的液晶的每个参数被规定为提供高应力阻力并能够进行灰度显示的液晶。 保持在一对平行基板之间的液晶是铁电体或反铁电体,并且表示层结构。 可以为层结构设置多个基板界面倾斜角。 层结构可以围绕平行衬底之间的平面不对称或对称地构造。 利用该结构,构成了具有多个层结构的液晶装置,该层结构具有至少一层结构,该层结构具有(1)基板界面层倾斜角为0〜3°,c导体预倾斜为3°〜5° DEG,或(2)基板界面层倾斜角为4°至7°,c导体预倾斜为0°至3°,或(3)基板界面倾斜角为8°至20°,c导体 预倾斜9°〜90°以下。