公开(公告)号：US20160147055A1

公开(公告)日：2016-05-26

申请号：US14947401

申请日：2015-11-20

Applicant: MITUTOYO CORPORATION

Inventor： Eisuke MORIUCHI ,  Toshio KAWASAKI ,  Yukimasa NISHIO

IPC: G02B21/08 ,  F21K99/00

CPC classification number: G02B21/084

Abstract: An LED ring light including a holding frame having a generally annular shape in a plan view and an aperture into which an objective lens can be inserted around a center of the holding frame; an LED substrate held inside the holding frame in a generally frusto-conical shape; and a plurality of LEDs arranged on an inner circumferential surface of the LED substrate. The LED substrate is divided at a plurality of locations in a circumferential direction of the inner circumferential surface of the holding frame by arranging a plurality of substrates side by side.

Abstract translation: 一种LED环形灯，包括在平面图中具有大致环形形状的保持框和可围绕所述保持框的中心插入物镜的孔; 保持框架内的大致截头圆锥形状的LED基板; 以及布置在所述LED基板的内周面上的多个LED。 LED基板通过并排布置多个基板而在保持框架的内周面的圆周方向上的多个位置分割。

公开(公告)号：US20140139133A1

公开(公告)日：2014-05-22

申请号：US14082474

申请日：2013-11-18

Applicant: Mitutoyo Corporation

Inventor： Toshio KAWASAKI

IPC: H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0812 ,  H05B33/0818 ,  Y02B20/343 ,  Y02B20/346

Abstract: In an image measuring device that performs, on a work piece to be measured, low brightness continuous illumination and one of stroboscopic illumination and continuous illumination with high brightness, a common high-brightness LED is used, and driving circuits are switched between pseudo-continuous illumination and one of stroboscopic illumination and continuous illumination. In the pseudo-continuous illumination, an average brightness is reduced by pulse lighting. In the stroboscopic illumination, high brightness light is emitted instantaneously. The switching between the pseudo-continuous illumination and one of the stroboscopic illumination and continuous illumination may be performed by changing a lighting cycle of the high-brightness LED.

Abstract translation: 在图像测量装置中，在被测量工件上进行低亮度连续照明和高亮度的频闪照明和连续照明之一，使用普通的高亮度LED，驱动电路在伪连续 照明和频闪照明和连续照明之一。 在伪连续照明中，通过脉冲照明降低平均亮度。 在频闪照明中，立即发出高​​亮度光。 可以通过改变高亮度LED的点亮周期来执行伪连续照明与频闪照明和连续照明之一之间的切换。