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    • 61. 发明申请
    • Scanning optical system
    • 扫描光学系统
    • US20010022680A1
    • 2001-09-20
    • US09790574
    • 2001-02-23
    • ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
    • Takashi Iizuka
    • G02B026/08
    • G02B26/126
    • Disclosed is a scanning optical system that includes a semiconductor laser; a polygon mirror that deflects and scans a light beam emitted from the laser; and an imaging optical system that forms a beam spot on a photoconductive drum. The imaging optical system consists of a curved surface mirror having a positive power mainly in the main scanning direction and an anamorphic lens having a positive power mainly in the auxiliary scanning direction. The anamorphic lens having an anamorphic surface whose optical axis is decentered from a reference ray that reaches the center of the scanning range. The sectional shape of the anamorphic surface in an auxiliary scanning direction being a non-circular curved line to correct coma in the auxiliary scanning direction. The anamorphic surface is a rotationally asymmetrical surface that is defined by a two dimensional polynomial expression.
    • 公开了一种包括半导体激光器的扫描光学系统; 多角镜,其偏转并扫描从激光发射的光束; 以及在感光鼓上形成束斑的成像光学系统。 成像光学系统由主要在主扫描方向上具有正功率的弯曲表面镜和主要在辅助扫描方向上具有正功率的变形镜组成。 变形透镜具有变形表面,其光轴偏离到达扫描范围中心的参考光线。 辅助扫描方向上的变形表面的截面形状是用于校正辅助扫描方向上的彗差的非圆弧曲线。 变形表面是由二维多项式表达式定义的旋转非对称表面。
    • 62. 发明申请
    • Autofocus distance-measuring optical system
    • 自动对焦测距光学系统
    • US20010021012A1
    • 2001-09-13
    • US09799618
    • 2001-03-07
    • Asahi Kogaku Kogyo Kabushiki Kaisha
    • Masami ShiraiRyota OgawaShinichi SuzukiHomu Takayama
    • G01C003/08G03B015/02G03B013/00G02B007/04G02B027/40G02B027/64
    • G01C3/08G02B7/34
    • An autofocus distance-measuring optical system includes a sighting telescope having an objective lens for sighting an object; an optical distance meter which includes a light-transmitting optical system for transmitting a measuring light via the, and a light-receiving optical system for receiving light reflected by the object; a focus detecting device for detecting a focus state of the sighting telescope; and a controller for controlling the sighting telescope to automatically focus on the object in accordance with the focus state detected by the focus detecting device. The focus detecting device is a phase-difference detection type which detects an in-focus state from a pair of images respectively formed by two light bundles which are passed through two different pupil areas. The two different pupil areas are positioned so as not to interfere with any optical elements of the optical distance meter.
    • 自动对焦距离测量光学系统包括具有用于瞄准物体的物镜的瞄准望远镜; 光学距离计,其包括用于透过测量光的透光光学系统和用于接收被物体反射的光的光接收光学系统; 用于检测瞄准望远镜的焦点状态的焦点检测装置; 以及控制器,用于根据由焦点检测装置检测到的焦点状态来控制瞄准望远镜以自动对准物体。 焦点检测装置是从通过两个不同光瞳区域的两个光束形成的一对图像中检测对焦状态的相位差检测型。 两个不同的光瞳区域被定位成不干涉光学距离计的任何光学元件。
    • 64. 发明申请
    • Zoom lens barrel
    • 变焦镜头镜筒
    • US20010017738A1
    • 2001-08-30
    • US09774123
    • 2001-01-31
    • Asahi Kogaku Kogyo Kabushiki Kaisha of Tokyo,Japan
    • Hiroshi NomuraNobuaki AokiYoshihiro YamazakiSatoru Nakamura
    • G02B015/14
    • G02B7/10
    • A selectable assembling device of a zoom lens barrel includes a stationary barrel having a female helicoid, and linear guide grooves spaced at 120 degree intervals; a cam ring including bottomed cam grooves; a linear guide barrel provided with linear guide projections and linear guide slots spaced at 120 degree intervals; and a plurality of lens frames provided with sliding projections spaced at 120 degree intervals, which are engaged in the linear guide slots of the linear guide barrel, each of the sliding projections including a cam follower which is fitted in a corresponding bottomed cam groove of the cam ring. Upon assembly, a relative angular position of assembly for the cam ring and the linear guide barrel can be selected from among three circumferential positions spaced at 120 degree intervals. A device for guiding a flexible circuit board is also provided.
    • 变焦透镜镜筒的可选装配装置包括具有阴螺纹的固定镜筒和间隔120度间隔的直线导向槽; 凸轮环,包括有底的凸轮槽; 线性引导筒设有线性引导突起和以120度间隔隔开的直线引导狭槽; 以及多个透镜框,设置有间隔120度间隔的滑动突起,其与直线导引筒的直线导引槽接合,每个滑动突起包括凸轮从动件,凸轮从动件装配在相应的底部凸轮槽中 凸轮环。 在组装时,可以从间隔120度间隔的三个圆周位置中选择用于凸轮环和线性引导筒的组件的相对角度位置。 还提供了用于引导柔性电路板的装置。
    • 65. 发明申请
    • Internet camera system
    • 互联网摄像系统
    • US20010017656A1
    • 2001-08-30
    • US09790610
    • 2001-02-23
    • ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
    • Yoshiyuki ArakiKiyoshi Negishi
    • H04N005/232H04N007/14
    • H04N7/142H04N7/148
    • An Internet camera system is provided with an Internet camera and a plurality of clients, each of which are connectable to a predetermined server on the Internet. The Internet camera includes an image capturing system that captures an image covering a relatively wide area, and a transmitting system that transmits the captured image to the server on the Internet. Each of the plurality of clients includes a downloading system that downloads the image from the predetermined server, a storage device that stored the downloaded image, an extracting system that extracts a desired part of the image stored in the storage device, and a display system that displays the part of the image extracted by the extracting system.
    • 互联网摄像机系统具有互联网摄像机和多个客户机,每个客户机可连接到互联网上的预定服务器。 因特网摄像机包括拍摄覆盖相对较宽区域的图像的图像拍摄系统,以及将拍摄图像发送到因特网上的服务器的发送系统。 多个客户端中的每一个包括从预定服务器下载图像的下载系统,存储下载图像的存储装置,提取存储在存储装置中的图像的期望部分的提取系统,以及显示系统, 显示由提取系统提取的图像的一部分。
    • 66. 发明申请
    • Film-back exchangeable camera
    • 电影可更换相机
    • US20010014217A1
    • 2001-08-16
    • US09779638
    • 2001-02-09
    • ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
    • Masakatsu Hori
    • G03B017/26G03B019/12
    • G03B17/26G03B19/12
    • In a film back exchangeable camera provided with a camera body, an exchangeable film back is removably attached to the camera body. A light shielding member is removably attached to the film back so that the light shielding member prevents a film in the film back from being exposed when the light shielding member is attached to the film back, and so that the film is permitted to be exposed when the light shielding member is removed from the film back. The camera further includes film back attachment detecting means for detecting attachment of the film back to the camera body, light shielding member attachment detecting means for detecting attachment of the light shielding member to the film back, release lock means for switching a shutter between an operable state and an inoperable state; and viewfinder lock means for switching a viewfinder between an observable state and an unobservable state, so that the shutter being brought into the inoperable state by the release lock means and the viewfinder is brought into the unobservable state by the viewfinder lock means when attachment of the film back to the camera body is detected by the film back attachment detecting means and attachment of the light shielding member to the film back is detected by the light shielding member attachment detecting means.
    • 在具有照相机主体的胶卷可更换相机中,可更换的胶片背面可移除地附接到照相机主体。 遮光构件可拆卸地附接到胶片背面,使得当遮光构件附接到胶片背面时,遮光构件防止胶片背面的膜暴露,并且使得当膜 遮光构件从胶片背面去除。 照相机还包括用于检测胶片与相机主体的连接的胶片背部附件检测装置,用于检测遮光部件与胶卷背面的附着的遮光部件附着检测装置,用于在可操作 状态和不可操作状态; 以及取景器锁定装置,用于在可观察状态和不可观察状态之间切换取景器,使得通过释放锁定装置使快门处于不可操作状态,并且当附着在取景器锁定装置上时,取景器被取景器状态 通过遮光构件附着检测装置检测由胶片背面附着检测装置检测到的相机体的胶片和遮光构件与胶片背面的附着。
    • 68. 发明申请
    • Photometry device
    • 测光装置
    • US20010010762A1
    • 2001-08-02
    • US09771582
    • 2001-01-30
    • ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
    • Isamu HiraiYoshikazu Iida
    • G03B007/00G03B007/099
    • G03B7/09976
    • A photometry device for a camera is provided with a normal light sensor having spectral sensitivity characteristics close to visual sensitivity characteristics, a plurality of colorimetric sensors having spectral sensitivity characteristics that are different from those of the normal light sensor, an exposure amount determining system that determines an exposure amount of an object in accordance with an output of the normal light sensor. A color of the object is determined in accordance with the outputs of the plurality of colorimetric sensors and an external light sensor that measures an external light illuminating the object at spectral sensitivity characteristics corresponding to each of the plurality of colorimetric sensors. Then, based on the determined color, an exposure compensation amount is determined.
    • 用于照相机的测光装置设置有具有接近视觉灵敏度特性的光谱灵敏度特性的普通光传感器,具有与普通光传感器不同的光谱灵敏度特性的多个比色传感器,确定 根据正常光传感器的输出的物体的曝光量。 根据多个比色传感器的输出和外部光传感器确定对象的颜色,该外部光传感器以对应于多个比色传感器中的每一个的光谱灵敏度特性来测量照射对象的外部光。 然后,基于所确定的颜色,确定曝光补偿量。
    • 69. 发明申请
    • Optical low-pass filter
    • 光学低通滤波器
    • US20010010594A1
    • 2001-08-02
    • US09771581
    • 2001-01-30
    • ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
    • Masahiro Oono
    • G02B005/30G02B027/28
    • G02B27/46H04N5/2254
    • An optical low-pass filter used in association with an imaging element which has a plurality of pixels arranged in vertical and horizontal direction with regularity, is provided with first through third birefringent plates arranged in the order from a light incident side. The low-pass filter separates an incident ray into four rays, a separation width of the rays in the vertical direction being nullv, and a separation width of the rays in the horizontal direction being nullh. A separation angles of the first through third birefringent plates are null, (nullnull90null) and 0null, respectively, and separation widths of the first through third birefringent plates are (nullvnullsin null), (nullvnullcos null) and nullh, respectively.
    • 与具有沿垂直和水平方向布置的多个像素的成像元件相关联地使用的光学低通滤波器设置有从光入射侧依次排列的第一至第三双折射板。 低通滤波器将入射光线分成四条光线,垂直方向上的光线的分离宽度为Δttav,而水平方向上的光线的分离宽度为三角形。 第一至第三双折射板的分离角分别为θ(θ-90°)和0°,第一至第三双折射板的分离宽度分别为(deltavxsinθ),(deltavxcosθ)和deltah。