公开(公告)号：US20140333762A1

公开(公告)日：2014-11-13

申请号：US14271643

申请日：2014-05-07

Applicant: MITUTOYO CORPORATION

Inventor： Hiroyuki YOSHIDA ,  Masafumi YAMANAKA

IPC: H04N5/235

CPC classification number: H04N5/2355 ,  G02B7/38 ,  H04N5/23212

Abstract: An image measuring apparatus includes an image capturer capturing an image of a measured object and outputting image data; a memory storing a plurality of first measurement data including the image data; a transmitter transmitting the first measurement data stored in the memory; a controller controlling the image capturer, the memory, and the transmitter; and a position control system controlling a position of the image capturer and outputting second measurement data including focus position data of the image capturer. During position control, the controller capturers an image at a predetermined interval and stores in the memory the first measurement data and the second measurement data so as to be associated with each other. The transmitter transmits the first measurement data stored in the memory depending on a communication status.

Abstract translation: 图像测量装置包括：图像捕获器，其捕获测量对象的图像并输出图像数据; 存储包含图像数据的多个第一测量数据的存储器; 发送器，发送存储在存储器中的第一测量数据; 控制图像捕获器，存储器和发射器的控制器; 以及位置控制系统，其控制图像捕获器的位置并输出包括图像捕获器的焦点位置数据的第二测量数据。 在位置控制期间，控制器以预定的间隔捕获图像，并将第一测量数据和第二测量数据存储在存储器中以便彼此关联。 发射机根据通信状态发送存储在存储器中的第一测量数据。

公开(公告)号：US20200208965A1

公开(公告)日：2020-07-02

申请号：US16717320

申请日：2019-12-17

Applicant: MITUTOYO CORPORATION

Inventor： Satoru YOSHIDA ,  Tatsuya NAGAHAMA ,  Hitoshi ISOBE ,  Masafumi YAMANAKA ,  Naoto OITA ,  Koji KUBO ,  Yuko SHISHIDO ,  Nobuo OHBA ,  Takahisa OOTAKE ,  Hiroki MATSUI ,  Masanori ARAI ,  Shiro IGASAKI ,  Yuki KURAHASHI ,  Hiroshi SAKAI ,  Yutaka WATANABE

IPC: G01B11/24 ,  G02B21/36 ,  H04N5/225

Abstract: An image measurement apparatus, which functions as a non-contact profile-measuring device, includes: an image sensor as an image pick-up device; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from a workpiece to the image sensor; and a controller (image-pickup lens controller and image measurement processor) configured to control the variable focal length lens and process a detected image by the image sensor. The image measurement apparatus, which also functions as a non-contact displacement-detecting device, includes: an image sensor; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from the workpiece to the image sensor; and a controller (displacement-detection lens controller and profile measurement processor) configured to control the variable focal length lens and a detected image by the image sensor.

公开(公告)号：US20210164768A1

公开(公告)日：2021-06-03

申请号：US17106638

申请日：2020-11-30

Applicant: MITUTOYO CORPORATION

Inventor： Masafumi YAMANAKA

IPC: G01B11/02 ,  H04N5/232 ,  G02B27/00 ,  H04N5/225

Abstract: A height measurement device includes: a lens system; a lens controller to output a drive signal to the lens system; a continuous illuminator to continuously illuminate a workpiece; an image detector to detect an image of the workpiece; an image calculation unit to calculate an EDOF image on a basis of a detected image; a focal depth adjustment unit to cause an extended focal depth of the EDOF image to be increased or decreased by increasing or decreasing an amplitude of the drive signal; a focus determination unit to determine a focus state of a portion of interest of the workpiece included in the EDOF image; and a height measurement unit to measure an upper limit or a lower limit of the extended focal depth, the upper limit or the lower limit being based on a timing at which the focus state of the portion of interest has changed.