System and methods for damping lens ringing

    公开(公告)号:US09681049B2

    公开(公告)日:2017-06-13

    申请号:US14693656

    申请日:2015-04-22

    Abstract: Methods and systems are disclosed for damping unwanted vibrations or ringing of a lens in an imaging device. For example, one method includes determining a target distance to move a lens, and dividing the target distance into multiple steps having at least a first step and a subsequent step, moving the lens, via an actuator, by the first step, thereby causing a first vibration, retrieving a damping parameter indicative of a time delay, the damping parameter being based on at least one characteristic of the actuator and the number of steps, and repeating said moving the lens at least one subsequent step after delaying the subsequent step by one of the damping parameters, each moving the lens a subsequent step causing a subsequent vibration, and the damping parameters affecting the vibration such that the first and subsequent vibrations at least in part modify each other to lower overall vibration.

    ACTUATOR RING CHARACTERISTIC MEASUREMENT METHOD
    42.
    发明申请
    ACTUATOR RING CHARACTERISTIC MEASUREMENT METHOD 有权
    执行器环特性测量方法

    公开(公告)号:US20160061780A1

    公开(公告)日:2016-03-03

    申请号:US14693681

    申请日:2015-04-22

    Abstract: Methods and systems are disclosed for determining at least one actuation characteristic of an imaging device. For example, one method includes determining a target distance to move a lens by an actuator to focus a scene on an image sensor, where moving the lens by the actuator causes an associated lens vibration having at least one actuation characteristic, determining a scan sequence having a plurality of successive measurements, each measurement having at least a first measurement parameter and subsequent measurement parameter, each measurement parameter including at least one step and at least one time delay, moving the lens the target distance for each successive measurement based on the measurement parameters of each successive measurement, measuring a performance indicator of each successive measurement, and determining at least one actuation characteristic based on the first measurement parameter of the measurement having the highest performance indicator.

    Abstract translation: 公开了用于确定成像装置的至少一个致动特性的方法和系统。 例如,一种方法包括确定由致动器移动透镜的目标距离以将场景聚焦在图像传感器上,其中由致动器移动透镜导致具有至少一个致动特性的相关联的透镜振动,确定具有 多个连续测量,每个测量具有至少第一测量参数和随后的测量参数,每个测量参数包括至少一个步骤和至少一个时间延迟,基于所述测量参数将所述透镜移动到每个连续测量的所述目标距离 测量每个连续测量的性能指标,以及基于具有最高性能指标的测量的第一测量参数来确定至少一个致动特性。

    Reading apparatus and composite apparatus
    43.
    发明授权
    Reading apparatus and composite apparatus 有权
    阅读设备和复合设备

    公开(公告)号:US09118799B2

    公开(公告)日:2015-08-25

    申请号:US14189276

    申请日:2014-02-25

    Abstract: A reading apparatus includes a reading unit and a movement-restriction unit that restricts a movement of the reading unit. The reading unit includes a reading portion for reading an image, a holding portion that holds the reading portion. The holding portion has a first surface. The reading unit further includes a sliding portion that moves in contact with the movement-restriction unit. The sliding portion has a second surface facing the first surface. A first region is provided between the first surface of the holding portion and the second surface of the sliding portion so as to form a predetermined gap.

    Abstract translation: 读取装置包括读取单元和限制读取单元的移动的移动限制单元。 读取单元包括读取图像的读取部,保持读取部的保持部。 保持部具有第一面。 读取单元还包括与移动限制单元接触地移动的滑动部。 滑动部分具有面向第一表面的第二表面。 第一区域设置在保持部分的第一表面和滑动部分的第二表面之间,以形成预定间隙。

    Image forming apparatus
    44.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08570624B2

    公开(公告)日:2013-10-29

    申请号:US13074192

    申请日:2011-03-29

    Abstract: An image forming apparatus includes: an apparatus main body with an opening formed on an upper face thereof; an original document reading device that opens and closes the opening; an original document holder that is supported openably and closably by the original document reading device; a first lock mechanism that locks opening and closing of the original document reading device with respect to the apparatus main body; and a second lock mechanism that locks opening and closing of the original document holder with respect to the original document reading device, in which the first lock mechanism and the second lock mechanism are disposed inside a cabinet of the original document reading device.

    Abstract translation: 图像形成装置包括:具有形成在其上表面上的开口的装置主体; 打开和关闭开口的原始文件读取装置; 由原始文件读取装置可开启和关闭地支撑的原始文件夹; 第一锁定机构,其相对于装置主体锁定原稿读取装置的打开和关闭; 以及第二锁定机构,其相对于原稿文档读取装置锁定原稿保持器的打开和关闭,其中第一锁定机构和第二锁定机构设置在原稿读取装置的机壳内。

    IMAGE READING DEVICE AND IMAGE FORMING APPARATUS
    46.
    发明申请
    IMAGE READING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
    图像读取装置和图像形成装置

    公开(公告)号:US20100214623A1

    公开(公告)日:2010-08-26

    申请号:US12569949

    申请日:2009-09-30

    Applicant: Mitsuo SHIMIZU

    Inventor: Mitsuo SHIMIZU

    Abstract: There is provided an image reading device including: a light source; an image forming unit including plural optical members that receive reflection light reflected from the document and form an image from the received light; plural light receiving units that receive the light formed into an image by the image forming unit and convert the light to an electric signal; a storing unit that stores plural kinds of correction data; a detecting unit that detects an amount of relative positional shift between a light receiving unit and the image forming unit for each light receiving unit; and a correcting unit that selects correction data suitable for each light receiving unit from the plural kinds of correction data stored in the storing unit based on the detected amount of relative positional shift, and corrects the electric signal converted by each light receiving unit based on the correction data.

    Abstract translation: 提供了一种图像读取装置,包括:光源; 图像形成单元,包括接收从文件反射的反射光并从接收的光形成图像的多个光学部件; 多个光接收单元,其接收由图像形成单元形成为图像的光,并将光转换为电信号; 存储单元,存储多种校正数据; 检测单元,其检测每个光接收单元的光接收单元和图像形成单元之间的相对位置偏移量; 以及校正单元,其基于检测到的相对位置偏移量,从存储在存储单元中的多种校正数据中选择适合于每个光接收单元的校正数据,并且根据所检测的相对位置偏移量来校正由每个光接收单元转换的电信号 校正数据。

    Image reader for use in image forming apparatus
    49.
    发明授权
    Image reader for use in image forming apparatus 失效
    用于图像形成装置的图像读取器

    公开(公告)号:US06788435B2

    公开(公告)日:2004-09-07

    申请号:US09749549

    申请日:2000-12-28

    Abstract: An image reader of the present invention comprises a fluctuation detector that can be connected to the external equipment by means of an image data input-output section, and can subject image data, continuous in a first direction and outputted as image information on a test chart is photoelectrically converted by means of a CCD sensor when a mirror set or the test chart is moved in the first direction, to Fourier conversion, thereby obtaining the frequency of a fluctuation of the obtained image data and a maximum value of the amplitude thereof. If the obtained maximum value of the fluctuation amplitude is greater than a given value, the fluctuation detector is used to compare the frequency of the fluctuation and the natural frequency of a drive motor for generating driving force for moving the mirror set or the image. If the fluctuation frequency and the natural frequency are not equal, the value of current supplied to the drive motor is increased.

    Abstract translation: 本发明的图像读取装置包括:波动检测器,其能够通过图像数据输入输出部连接到外部设备,并且可以将图像数据沿第一方向连续地作为图像信息输出到测试图上 当反射镜组或测试图沿​​第一方向移动时,通过CCD传感器进行光电转换,进行傅里叶变换,从而获得所获得的图像数据的波动频率和其幅度的最大值。 如果获得的波动幅度的最大值大于给定值,则波动检测器用于比较用于产生用于移动镜像组或图像的驱动力的驱动马达的波动频率和固有频率。 如果波动频率和固有频率不相等,则提供给驱动马达的电流值增加。

    Tension adjustable mechanism for reciprocatingly moving print/read head device
    50.
    发明授权
    Tension adjustable mechanism for reciprocatingly moving print/read head device 有权
    用于往复运动的打印/读取头装置的张力可调机构

    公开(公告)号:US06690494B1

    公开(公告)日:2004-02-10

    申请号:US09357660

    申请日:1999-07-20

    Inventor: Noriyuki Yamada

    Abstract: The invention includes a driving pulley mounted to a carriage driving motor fixed to a chassis frame of a facsimile apparatus, a following pulley mounted to a bracket that is movably mounted along a guide groove provided in a chassis frame, and a timing belt rotated around the driving pulley and the following pulley. The top end of a guide shaft protruded from a base block of the bracket, is movably supported by a support portion uniformly protruded from the chassis frame. A compression spring provided to the guide shaft is arranged between the support portion and the bracket, and presses the bracket to apply tension to the timing belt. The bracket is restricted so as not to approach the driving pulley using a stopper fixed to the chassis frame. Therefore, the tension of the timing belt for reciprocatingly moving the carriage mounting the print head, is not loosened.

    Abstract translation: 本发明包括安装到固定到传真机的机架框架上的滑架驱动马达的驱动滑轮,安装在托架上的随动滑轮,其沿着设置在底盘框架中的引导槽可移动地安装, 驱动滑轮和下一个滑轮。 从支架的基座突出的引导轴的顶端由从底盘框架均匀地突出的支撑部分可移动地支撑。 设置在引导轴上的压缩弹簧被布置在支撑部分和支架之间,并且按压支架以向同步带施加张力。 支架被限制,以便不使用固定在底盘框架上的止动件接近驱动滑轮。 因此,用于使安装打印头的托架往复移动的同步带的张力不松动。

Patent Agency Ranking