公开(公告)号：US20200159033A1

公开(公告)日：2020-05-21

申请号：US16487261

申请日：2017-05-01

Applicant: Shimadzu Corporation

Inventor： Takeshi MAJI

IPC: G02B27/10 ,  G02B7/18 ,  G02B7/198

Abstract: In a beam splitter assembly 7, a beam splitter 22 is supported at three points by three bent portions 41 of a first spacer 24. Therefore, the beam splitter 22 can be prevented from being affected by the surface accuracy of a holder 21. Further, in the beam splitter assembly 7, the first spacer 24 faces the peripheral edge portion of the beam splitter 22. Each bent portion 41 is configured by bending each outer projection piece. Therefore, the external shape of the first spacer 24 can be prevented from becoming larger than the external shape of the beam splitter 22. And it is possible to suppress that the size of the holder 21 for providing the first spacer 24 becomes large. As a result, the miniaturization of the beam splitter assembly 7 can be realized.

公开(公告)号：US20200249413A1

公开(公告)日：2020-08-06

申请号：US16712276

申请日：2019-12-12

Applicant: Shimadzu Corporation

Inventor： Takeshi MAJI ,  Shinya WAKUDA

IPC: G02B7/00 ,  G01J3/02 ,  G01J3/42 ,  G02B27/14

Abstract: A beam splitter assembly includes a beam splitter, a holder that holds the beam splitter, and a first spacer group arranged between the beam splitter and the holder. The first spacer group includes three first spacer pieces. Each of the three first spacer pieces includes a first optical element holder and a first positioning portion. The holder includes three first spacer piece acceptance recesses. Each of the first spacer piece acceptance recesses is in a shape corresponding to the first positioning portion. The three first spacer pieces are accommodated in the three first spacer piece acceptance recesses, respectively. The first optical element holder of each of the three first spacer pieces abuts on the beam splitter.

公开(公告)号：US20180119782A1

公开(公告)日：2018-05-03

申请号：US15799402

申请日：2017-10-31

Applicant: SHIMADZU CORPORATION

Inventor： Takeshi MAJI ,  Shunsuke ATSUMI

IPC: F16H25/20 ,  G02B5/00

CPC classification number: F16H25/2003 ,  F16H2025/204 ,  F16H2025/2059 ,  F16H2025/2075 ,  G02B5/003 ,  G02B5/005 ,  G02B21/0004 ,  G02B21/04 ,  G02B21/088 ,  G02B21/361

Abstract: Provided is an aperture-plate moving mechanism, including: a drive block 308 fixed to an aperture plate 301; a linear motion guide 306 for allowing the drive block to move along an axis while preventing the drive block from moving in other directions; a feed screw 302 laid in a direction of the axis; a nut member 305 having a threaded hole engaged with the feed screw, the nut member being prevented from rotating due to a rotation of the feed screw; and an urging member 309 for pressing the drive block onto the nut member in the direction of the axis. With respect to the direction of the axis, the contact portion of either the drive block or the nut member is a convex surface, while the contact portion of the other member is a concave surface having a larger radius of curvature than the convex surface.

公开(公告)号：US20230314219A1

公开(公告)日：2023-10-05

申请号：US18011019

申请日：2021-03-19

Applicant: SHIMADZU CORPORATION

Inventor： Tomoki SASAYAMA ,  Yugo ISHIHARA ,  Takeshi MAJI ,  Tomoyo TAO

IPC: G01J3/44 ,  G01J3/02 ,  G01N21/65

CPC classification number: G01J3/4412 ,  G01J3/0216 ,  G01J3/0229 ,  G01J3/0237 ,  G01J3/021 ,  G01J3/0218 ,  G01N21/65 ,  G01J3/0297

Abstract: Microscopic Raman spectroscopy device that detects and analyzes Raman scattering light emitted from sample irradiated with excitation light includes: laser light source that emits excitation light; spectrometer for measuring spectrum of the Raman scattering light; wavelength discriminator such as a dichroic filter that reflects the excitation light emitted from the laser light source toward the sample and transmits Raman scattering light emitted from the sample toward the spectrometer; condenser lens arranged between wavelength discriminator and the spectrometer for condensing the Raman scattering light passing through the wavelength discriminator; aperture arranged between the condenser lens and the spectrometer for limiting Raman scattering light incident on the spectrometer; adjusting means for adjusting to match a position of spot image of Raman scattering light condensed by condensing lens with a position of the aperture so that light amount of Raman scattering light passing through the aperture is maximized.

公开(公告)号：US20180120552A1

公开(公告)日：2018-05-03

申请号：US15799193

申请日：2017-10-31

Applicant: SHIMADZU CORPORATION

Inventor： Takeshi MAJI ,  Shunsuke ATSUMI

IPC: G02B21/36 ,  G01N21/35 ,  G02B5/00

CPC classification number: G02B21/362 ,  G01N21/35 ,  G01N2201/063 ,  G02B5/005

Abstract: Provided is an aperture-plate drive mechanism including an aperture-plate open-close mechanism and a rotation mechanism for rotating the open-close mechanism. The open-close mechanism includes: drive blocks 308 fixed to a pair of aperture plates 301; a linear motion guide 306 allowing the drive blocks to move along an axis; a feed screw 302 parallel to the axis, on which a pair of helical threads proceedimg in opposite directions formed; nut members 305 each of which is provided in a manner to be engaged with one of the pair of helical threads and is prevented from rotating due to a rotation of the feed screw; an urging member 309 for pressing the drive blocks onto the nut members, respectively; and a distance adjustment member 310 placed between one drive block and the corresponding nut member, for adjusting the distance between them. With this mechanism, a discrepancy between the open-close center of the aperture plates from the rotation center can be cancelled even after the mechanism is assembled.