公开(公告)号：US20130327930A1

公开(公告)日：2013-12-12

申请号：US13913025

申请日：2013-06-07

Applicant: MITUTOYO CORPORATION

Inventor： Kimitoshi Ono ,  Hiroaki Kawada

IPC: G01D5/347 ,  G02B7/02

CPC classification number: G01D5/34715 ,  G01D5/34 ,  G02B7/02

Abstract: An optical encoder includes a detection head. The detection head includes an optical system including a lens including a pair of bosses integrally formed with the lens and disposed with an optical axis of the lens therebetween, and an aperture plate having a pair of reference-pin-insertion holes disposed with an aperture therebetween; a housing including a pair of attachment portions and having a pair of lens-boss-insertion holes and a pair of reference-pin-insertion holes disposed on a central symmetry plane; a lens holder having a pair of lens-boss-insertion holes and a pair of reference-pin-insertion holes disposed on the central symmetry plane; and a pair of reference pins for positioning the lens holder and the aperture plate relative to the housing. An optical axis of the optical system is adjusted with respect to the bosses and the reference pins.

Abstract translation: 光学编码器包括检测头。 检测头包括光学系统，该光学系统包括透镜，该透镜包括一对与该透镜一体形成的凸起并且设置在其间的透镜的光轴;以及孔板，其具有设置有孔径的一对基准销插入孔 ; 壳体，包括一对安装部分，并且具有一对透镜凸台插入孔和设置在中心对称平面上的一对基准销插入孔; 具有一对透镜凸台插入孔和设置在中心对称平面上的一对基准销插入孔的透镜架; 以及一对用于相对于壳体定位透镜保持器和孔板的参考销。 光学系统的光轴相对于凸台和参考销进行调整。

公开(公告)号：US10416002B2

公开(公告)日：2019-09-17

申请号：US15784803

申请日：2017-10-16

Applicant: Mitutoyo Corporation

Inventor： Miyako Mizutani ,  Kimitoshi Ono ,  Fujio Maeda

IPC: G01D5/347

Abstract: Provided are a light source device that can achieve higher accuracy while maintaining reliability by reducing stray light, and a photoelectric encoder including the same. A light source device 2 includes a translucent member 10 configured to accommodate a light emitting unit 5 thereinside, and to make light emitted from the light emitting unit 5, into parallel light. The translucent member 10 includes an optical axis plane 11, an orthogonal plane 12, a reflection portion configured to make light from the light emitting unit 5, into parallel light, and a connection portion 14 formed by the optical axis plane 11 and the orthogonal plane 12 connecting to each other, and having a curved surface. A central axis AX of the curved surface is in an outside region of the translucent member 10, and a region between the optical axis plane 11 and the orthogonal plane 12.

公开(公告)号：US20170074686A1

公开(公告)日：2017-03-16

申请号：US15262412

申请日：2016-09-12

Applicant: Mitutoyo Corporation

Inventor： Kimitoshi Ono

IPC: G01D5/347 ,  H04N5/225 ,  G02B3/00 ,  G02B13/22 ,  G02B5/18

CPC classification number: G01D5/34715 ,  G01D5/34746 ,  G02B3/0062 ,  G02B5/18 ,  G02B13/22 ,  H04N5/2256

Abstract: A photoelectric encoder of the present invention includes: a scale which includes a grid scale; a light emitting portion which irradiates light toward the scale; a light receiving portion which detects an image of the grid scale of the scale; and a telecentric optical unit which is provided between the scale and the light receiving portion and forms the image of the grid scale on the light receiving portion, wherein the telecentric optical unit includes a first optical element which is disposed near the scale, a second optical element which is disposed near the light receiving portion in relation to the first optical element and is disposed so that a gap is formed between the second optical element and the first optical element, and an aperture which is provided in at least one of a face near the second optical element in the first optical element and a face near the first optical element in the second optical element.

Abstract translation: 本发明的光电编码器包括：包括栅格的刻度; 将光朝规模照射的发光部; 光接收部分，其检测标尺的网格尺度的图像; 以及远心光学单元，其设置在所述刻度尺和所述光接收部之间，并且在所述光接收部分上形成所述格栅的图像，其中所述远心光学单元包括设置在所述刻度附近的第一光学元件，第二光学单元 元件，其相对于第一光学元件设置在光接收部分附近，并且被布置成使得在第二光学元件和第一光学元件之间形成间隙，并且孔被设置在靠近 第一光学元件中的第二光学元件和第二光学元件中的第一光学元件附近的面。

公开(公告)号：US20160349490A1

公开(公告)日：2016-12-01

申请号：US15139543

申请日：2016-04-27

Applicant: Mitutoyo Corporation

Inventor： Kenji Okabe ,  Tatsuya Nagahama ,  Toru Yaku ,  Kimitoshi Ono

IPC: G02B13/22

Abstract: A telecentric optical apparatus that is capable of suppressing an increase in the number of components as well as achieving high precision optical axis alignment, is provided. The telecentric optical apparatus of the present invention is characterized in that it is provided with: a first telecentric lens surface that is provided on an object side; a second telecentric lens surface that is provided on an image side and that shares a focus position with the first telecentric lens surface; and an optical path trimming part that is provided, between the first telecentric lens surface and the second telecentric lens surface, in an outside region, which is located on a side further out than a light passing region having a center thereof located at the focus position, and that changes an optical path such that a light beam incident on the outside region is prevented from contributing to image formation.

Abstract translation: 提供了能够抑制部件数量增加以及实现高精度光轴对准的远心光学装置。 本发明的远心光学装置的特征在于具有：设置在物体侧的第一远心透镜面; 第二远心透镜表面，其设置在图像侧并与第一远心透镜表面共享焦点位置; 以及在位于第一远心透镜表面和第二远心透镜表面之间的外部区域中的光路修剪部分，该外部区域位于比位于焦点位置的中心的光通过区域更远的一侧 并且改变光路，从而防止入射在外部区域上的光束对图像形成有贡献。

公开(公告)号：US09097560B2

公开(公告)日：2015-08-04

申请号：US13913025

申请日：2013-06-07

Applicant: MITUTOYO CORPORATION

Inventor： Kimitoshi Ono ,  Hiroaki Kawada

IPC: G01D5/347 ,  G02B7/02 ,  G01D5/34

CPC classification number: G01D5/34715 ,  G01D5/34 ,  G02B7/02

Abstract: An optical encoder includes a detection head. The detection head includes an optical system including a lens including a pair of bosses integrally formed with the lens and disposed with an optical axis of the lens therebetween, and an aperture plate having a pair of reference-pin-insertion holes disposed with an aperture therebetween; a housing including a pair of attachment portions and having a pair of lens-boss-insertion holes and a pair of reference-pin-insertion holes disposed on a central symmetry plane; a lens holder having a pair of lens-boss-insertion holes and a pair of reference-pin-insertion holes disposed on the central symmetry plane; and a pair of reference pins for positioning the lens holder and the aperture plate relative to the housing. An optical axis of the optical system is adjusted with respect to the bosses and the reference pins.

Abstract translation: 光学编码器包括检测头。 检测头包括光学系统，该光学系统包括透镜，该透镜包括一对与该透镜一体形成的凸起并且设置在其间的透镜的光轴;以及孔板，其具有设置有孔径的一对基准销插入孔 ; 壳体，包括一对安装部分，并且具有一对透镜凸台插入孔和设置在中心对称平面上的一对基准销插入孔; 具有一对透镜凸台插入孔和设置在中心对称平面上的一对基准销插入孔的透镜架; 以及一对用于相对于壳体定位透镜保持器和孔板的参考销。 光学系统的光轴相对于凸台和参考销进行调整。