Light beam scanning apparatus which controls power and spot shape of
light beam
    101.
    发明授权
    Light beam scanning apparatus which controls power and spot shape of light beam 失效
    光束扫描装置,用于控制光束的光束和斑点形状

    公开(公告)号:US5959655A

    公开(公告)日:1999-09-28

    申请号:US653395

    申请日:1996-05-24

    摘要: A light beam scanning apparatus in which laser power and spot shape of an emitted laser beam are controlled, has a laser control signal generating part for changing a picture signal to a laser power control signal and a spot shape control signal, a laser power control current generating part which is driven by the laser power control signal, a spot shape control current generating part which is driven by the shape control signal, and a laser beam emission part for emitting a laser beam having a laser power and a spot shape which are controlled by the control signals via a commonly used light wave guiding part, wherein the control signal generating part generates or corrects the control signals based on at least one of the difference between the laser power of a beam to be emitted and a detected laser power, the difference between the spot shape of a beam to be emitted and a detected laser power, a detected temperature at the laser beam emission part, and an effective light emission pixel number.

    摘要翻译: 控制发射激光束的激光功率和斑点形状的光束扫描装置具有激光控制信号产生部分,用于将图像信号改变为激光功率控制信号和光斑形状控制信号,激光功率控制电流 由激光功率控制信号驱动的发光部分,由形状控制信号驱动的光斑形状控制电流产生部分,以及激光束发射部分,用于发射具有被控制的激光光焦度和光斑形状的激光束 通过所述控制信号经由通常使用的光波导部,其中,所述控制信号生成部基于所发射的光束的激光功率与所检测的激光功率的差异中的至少一个来生成或校正所述控制信号, 要发射的光束的光斑形状与检测到的激光功率之间的差异,激光束发射部分处的检测温度和有效发光像素 el号码。

    Process for purifying water
    102.
    发明授权
    Process for purifying water 失效
    净化水的工艺

    公开(公告)号:US5607595A

    公开(公告)日:1997-03-04

    申请号:US338493

    申请日:1994-12-20

    摘要: A process and device for purifying water of the type wherein activated carbon is subjected to regeneration. Tap water is contacted with activated carbon fibers characterized by a narrow micropore distribution and a high adsorption speed, to eliminate by adsorption residual chlorine, harmful trihalomethane compounds and smelly substances such as 2-methylisoborneol and geosmin that are present in tap water. Activated carbon fibers having a modal micropore diameter of about 1.8-3.0 nm, preferably, 2.0-2.7 nm, are used to cause the large-molecular-weight smelly substances to be intensively and selectively adsorbed by the activated carbon fibers. In non-use, the activated carbon fibers are occasionally heated at a temperature of 100.degree.-120.degree. C. whereby trihalomethane compounds adsorbed in the activated carbon fibers are desorbed so that the adsorption capability of activated carbon fibers with respect to trihalomethanes is restored. Accordingly, trihalomethanes as well as smelly substances can be eliminated for a long period without requiring replacement of activated carbon fiber cartridge, while using a limited amount of activated carbon fibers.

    摘要翻译: PCT No.PCT / JP94 / 00518 Sec。 371日期1994年12月20日第 102(e)日期1994年12月20日PCT 1994年3月30日PCT公布。 公开号WO95 / 00442 日期1995年1月5日一种用于净化活性炭再生的类型的水的方法和装置。 自来水与活性炭纤维接触,其特征在于窄的微孔分布和高吸附速度,通过吸附剩余的氯,有害的三卤代甲烷化合物和自来水中存在的2-甲基异山梨醇和地塞米松等有害物质来消除。 使用具有约1.8-3.0nm的模态微孔直径,优选为2.0-2.7nm的活性碳纤维,使大分子量臭味物质被活性炭纤维集中和选择性地吸附。 在不使用时,活性碳纤维偶尔在100-120℃的温度下加热,由此吸附在活性碳纤维中的三卤代甲烷化合物被解吸,从而恢复活性炭纤维相对于三卤甲烷的吸附能力。 因此,在使用有限量的活性炭纤维的同时,可以长时间地消除三卤甲烷和臭味物质,而不需要更换活性炭纤维筒。

    Light scanning device with plural radii scanning lens system
    103.
    发明授权
    Light scanning device with plural radii scanning lens system 失效
    具有多个半径扫描透镜系统的光扫描装置

    公开(公告)号:US5451997A

    公开(公告)日:1995-09-19

    申请号:US240506

    申请日:1994-05-10

    CPC分类号: H04N1/1135

    摘要: A light scanning device has a light deflector for deflecting a light beam in a scanning mode which is outputted by a light source, and a scanning lens for compensating or reducing an amount of shift in scanning position which is due to the error of the light deflector. The device also forms an image of the light beam thus deflected. At least one surface of the scanning lens is non-arcuate when a section is taken with a plane which is perpendicular to the surface scanned with the light beam and which contains the normal of the section taken with the surface. Owing to this construction, the light scanning device is suitable for a high precision laser printer.

    摘要翻译: 光扫描装置具有用于使由光源输出的扫描模式偏转光束的光偏转器,以及用于补偿或减少由于导光板的误差引起的扫描位置偏移量的扫描透镜 。 该装置还形成如此偏转的光束的图像。 当使用垂直于用光束扫描的表面的平面拍摄部分并且其包含与表面取得的部分的法线时,扫描透镜的至少一个表面是非弓形的。 由于这种结构,光扫描装置适用于高精度激光打印机。

    Absolute measuring apparatus using laser and scanning mirrors
    105.
    发明授权
    Absolute measuring apparatus using laser and scanning mirrors 失效
    使用激光和扫描镜的绝对测量装置

    公开(公告)号:US5388115A

    公开(公告)日:1995-02-07

    申请号:US61555

    申请日:1993-05-17

    IPC分类号: G01B9/02 H01S3/10 G01C3/00

    摘要: An absolute length measuring apparatus comprising light sources, a beam splitter, an object of measurement, a scanning mirror, a light receiver, sampling parts and a distance measuring part. The light sources emit alternately a plurality of coherent light beams having different wavelengths. The beam splitter splits the coherent light beam from the light sources into two optical paths. The object of measurement is located on one of the two optical paths stemming from the beam splitter. The scanning mirror is located on the other optical path stemming from the beam splitter and made movable in the direction of optical axis. The light receiver receives both the reflected light beam from the object of measurement and the reflected light beam from the scanning mirror through the beam splitter. The sampling parts generate sampling signals of various wavelengths by sampling the output of the light receiver every time the light sources emit a coherent light beam while scanned by the scanning mirror. The distance measuring part assumes a synthetic wavelength signal having a wavelength sufficiently greater than any individually generated wavelength based on the phase relations of the sampling signals, and measures the distance to the object of measurement in accordance with the synthetic wavelength signal.

    摘要翻译: 一种包括光源,分束器,测量对象,扫描镜,光接收器,采样部件和距离测量部件的绝对长度测量装置。 光源交替发射具有不同波长的多个相干光束。 分束器将来自光源的相干光束分成两个光路。 测量对象位于源于分束器的两条光路之一上。 扫描镜位于从分束器引出的另一光路上,并使其沿光轴方向移动。 光接收器接收来自测量对象的反射光束和来自扫描镜的反射光束通过分束器。 采样部件通过在扫描反射镜扫描时每次光源发出相干光束时,对光接收器的输出进行采样,来产生各种波长的采样信号。 距离测量部分基于采样信号的相位关系假设具有足够大于任何单独生成的波长的波长的合成波长信号,并且根据合成波长信号测量到测量对象的距离。

    Electrophotographic toner composition
    106.
    发明授权
    Electrophotographic toner composition 失效
    电子照相色调剂组成

    公开(公告)号:US5320925A

    公开(公告)日:1994-06-14

    申请号:US879287

    申请日:1992-05-07

    IPC分类号: G03G9/08 G03G9/097

    CPC分类号: G03G9/0819 G03G9/09716

    摘要: An electrophotographic toner composition comprising (A) toner particles with an average particle diameter of 9 .mu.m or less comprising at least a binder resin and a colorant, and (B) an additive, wherein the additive is a fine metal oxide powder surface coated with at least one agent for imparting hydrophobic property selected from the group consisting of the following formulae (1), (2) and (3):R.sub.1 Si(X).sub.3R.sub.1 R.sub.2 Si(X).sub.2R.sub.1 R.sub.2 R.sub.3 Si(X).sub.1wherein R.sub.1 represents a substituted or unsubstituted alkyl group having a molecular weight of 113 or more, R.sub.2 and R.sub.3 each represents hydrogen, an alkyl group or an allyl group, and X represents chlorine, an alkoxy group or an acetoxy group. The toner composition causes no impaction to a carrier and no adhesion of the toner particles to a photoreceptor, and can form stable, sufficient images for a long time.

    摘要翻译: 一种电子照相调色剂组合物,其包含(A)平均粒径为9μm或更小的调色剂颗粒至少包含粘合剂树脂和着色剂,和(B)添加剂,其中所述添加剂是涂覆有金属氧化物粉末表面的金属表面 至少一种赋予选自下式(1),(2)和(3)的疏水性的试剂:R1Si(X)3 R1R2Si(X)2 R1R2R3Si(X)1其中R1表示取代或 未取代的分子量为113以上的烷基,R2和R3各自表示氢,烷基或烯丙基,X表示氯,烷氧基或乙酰氧基。 调色剂组合物不会对载体造成冲击,并且不会使调色剂颗粒粘附到感光体上,并且可以长时间形成稳定的足够的图像。

    Positively chargeable carrier
    107.
    发明授权
    Positively chargeable carrier 失效
    可积极承运人

    公开(公告)号:US5288578A

    公开(公告)日:1994-02-22

    申请号:US882023

    申请日:1992-05-13

    IPC分类号: G03G9/097 G03G9/113 G03G9/10

    摘要: A positively chargeable carrier for developing electrostatic charge images having good surface staining resistance and good environmental reliance of charging is disclosed, which comprises a core material having formed thereon an interlayer having a triboelectrification controlling function and having a nitrogen atom content of from 5 ppm to 75 ppm based on the weight of the core material, and a releasable coated layer formed on the interlayer. A two-component developer using the carrier is also disclosed.

    摘要翻译: 公开了一种用于显影具有良好的表面耐污染性和良好的充电环境依赖性的静电荷图像的可带正电的载体,其包括在其上形成有具有摩擦带电控制功能并且氮原子含量为5ppm至75的中间层的芯材料 基于芯材的重量的ppm,以及形成在中间层上的可剥离的涂层。 还公开了使用载体的双组分显影剂。

    Laser scanner
    108.
    发明授权
    Laser scanner 失效
    激光扫描仪

    公开(公告)号:US5270850A

    公开(公告)日:1993-12-14

    申请号:US925787

    申请日:1992-08-07

    CPC分类号: G02B26/125 G02B13/0005

    摘要: A laser scanner which includes a rotary polyhedral mirror for scanning a light beam from a laser light source, and an F.theta. lens system which includes first and second lenses through which the light beam is radiated onto a scanning plane. The first lens of the F.theta. lens system is provided on the rotary polyhedral mirror side and is constructed with a joined lens, to increase the degree of design of the first lens. This design freedom for the F.theta. lens system improves the F.theta. characteristic (i.e., characteristic of displacement on a scanning plane), the field curvature characteristic (i.e., characteristic of image defocusing on the scanning plane) and similar problems.

    摘要翻译: 一种激光扫描器,其包括用于扫描来自激光光源的光束的旋转多面体镜,以及包括第一透镜和第二透镜的Fθ透镜系统,光束通过该透镜系统辐射到扫描平面上。 Fθ透镜系统的第一透镜设置在旋转多面体镜侧,并且由接合透镜构成,以增加第一透镜的设计程度。 Fθ透镜系统的这种设计自由度提高了Fθ特性(即扫描平面上的位移特性),场曲率特性(即扫描平面上的图像散焦的特性)和类似的问题。

    Light deflecting system with rotating mirror
    110.
    发明授权
    Light deflecting system with rotating mirror 失效
    具有旋转镜的光偏转系统

    公开(公告)号:US4934781A

    公开(公告)日:1990-06-19

    申请号:US304554

    申请日:1989-02-01

    摘要: The rotating mirror light deflecting system employs a non-circular dynamic gas bearing providing dynamic pressure to radially support the shaft. The bearing is provided internally with a multiplicity of grooves or embankments whereby dynamic gas pressure is increased to enhance rigidity. The bearing radially moves as a whole with damping according to a movement of the shaft, thus permitting nondestructive movement of the shaft and absorption of the resonant energy of the shaft. The shaft and the bearing will not come in contact with each other, and oscillation energy of the shaft is absorbed or dissipated by an external viscous or hysteresis resistance of the bearing therefore resonance oscillation is attenuated on the instant it occurs. Since the resonance point is high due to bearing surface rigidity, whirling is hard to arise, however, if whirling does arise, then the bearing and the shaft move together to attenuate oscillation energy of the shaft, therefore oscillation and whirling is put down immediately.

    摘要翻译: 旋转镜光偏转系统使用提供动态压力的非圆形动态气体轴承来径向支撑轴。 轴承内部设置有多个槽或堤,从而增加动态气体压力以增强刚度。 根据轴的运动,轴承整体上具有阻尼的径向运动,从而允许轴的非破坏性运动和轴的共振能量的吸收。 轴和轴承不会彼此接触,并且轴的振动能量被轴承的外部粘性或磁滞阻力吸收或消散,因此谐振振荡在其发生的瞬间被衰减。 由于共振点由于轴承表面的刚度而高,因此很难产生旋转,但如果发生旋转,则轴承和轴一起移动,以减弱轴的振荡能量,因此立即放下振动和旋转。