Measurement result display device and measurement result display method

    公开(公告)号:US10279376B2

    公开(公告)日:2019-05-07

    申请号:US15884834

    申请日:2018-01-31

    摘要: Provided are a measurement result display device and a measurement result display method which are capable of making a list of how much difference is present between an allowable value and a measurement value of each measurement item measured by a measuring instrument, in a visually discriminable state. An allowable upper limit value indicator 21 and an allowable lower limit value indicator 22 are disposed at display positions which are set in advance in a measurement result image 20 as positions indicating an allowable upper limit value and an allowable lower limit value, and a measurement value indicator 23 is disposed at a display position calculated from display positions of the allowable upper limit value indicator 21 and allowable lower limit value indicator 22 and a measurement value measured by the measurement unit 10.

    OTDR measurement apparatus and control method

    公开(公告)号:US11632172B2

    公开(公告)日:2023-04-18

    申请号:US17470458

    申请日:2021-09-09

    摘要: It is possible to allow a user to easily distinguish between an event at a place to be resolved and an event at a place having no problem on a path of a PON communication network to be measured. A light intensity distribution of return light is processed in a time-series order to detect an event at each position on a network. A parameter N1 relating to the total number of splitters present on a path of the network is specified, the number N2 of detections of the total number of splitters detected as an event is recognized, and in a case where “N1>N2”, a last detected event is associated with one optical splitter and is further displayed as an “uncertain splitter” in distinction from a normal splitter.

    End face inspection device and focused image data acquisition method therefor

    公开(公告)号:US10521922B2

    公开(公告)日:2019-12-31

    申请号:US15920920

    申请日:2018-03-14

    发明人: Ryota Takasu

    摘要: Provided is an end face inspection device capable of inspecting different end face shapes without replacing an adapter for attachment. An end face inspection device includes: an optical system that forms an image of an end face of a test object, which is fixed at a predetermined position, at a position of an image sensor; and a focus detection section that acquires image data, which is output by the image sensor, and determines whether or not the end face is brought into focus in the image data. The focus detection section acquires a plurality of the image data pieces, in which parts of the end face are brought into focus by changing a focal position of the optical system by a predetermined distance at a time, and acquires focused image data by synthesizing the respective parts brought into focus in the plurality of image data pieces.