公开(公告)号：US20190078935A1

公开(公告)日：2019-03-14

申请号：US16189141

申请日：2018-11-13

Applicant: Hitachi High-Tech Analytical Science Limited

Inventor： Jukka Hassi

IPC: G01J3/443 ,  G01N21/71 ,  G01J3/02 ,  G01N21/65 ,  G01N21/359

Abstract: According to an example embodiment, a detector assembly for use in analysis of elemental composition of a sample by using optical emission spectroscopy is provided, the detector assembly comprising a rotatable element that is rotatable about an axis and that has attached thereto a laser source for generating laser pulses for invoking optical emission on a surface of the sample, which laser source is arranged to generate laser pulses focused at a predefined distance from said axis at a predefined distance from a front end of the detector assembly, and an optical receiver for capturing optical emission invoked by said laser pulses.

公开(公告)号：US20180259393A1

公开(公告)日：2018-09-13

申请号：US15913199

申请日：2018-03-06

Applicant: Hitachi High-Tech Analytical Science Limited

Inventor： Tuomas PYLKKANEN ,  Esa RAIKKONEN

IPC: G01J3/02 ,  G01N21/71 ,  G01J3/18

CPC classification number: G01J3/0208 ,  G01J3/0256 ,  G01J3/18 ,  G01J3/2803 ,  G01J3/36 ,  G01J3/443 ,  G01N21/718

Abstract: An optical spectrometer arrangement is provided. According to an example, the optical spectrometer arrangement includes a linear array detector for receiving light at a predefined range of wavelengths, a point detector for receiving light at a predefined wavelength that is outside said predefined range of wavelengths, and an arrangement of a collimating optical element, a diffracting optical element, and a focusing optical element that are arranged to provide at least a first optical path that guides incoming light at said predefined range of wavelengths to the linear array detector via the collimating optical element, the diffracting optical element and the focusing optical element, and a second optical path that guides incoming light at said predefined wavelength to the point detector via the collimating optical element, the diffracting optical element and one of the collimating optical element and the focusing optical element.

公开(公告)号：US10527496B2

公开(公告)日：2020-01-07

申请号：US16189141

申请日：2018-11-13

Applicant: Hitachi High-Tech Analytical Science Limited

Inventor： Jukka Hassi

IPC: G01J3/30 ,  G01J3/443 ,  G01J3/02 ,  G01N21/71 ,  G01N21/359 ,  G01N21/65

Abstract: According to an example embodiment, a detector assembly for use in analysis of elemental composition of a sample by using optical emission spectroscopy is provided, the detector assembly comprising a rotatable element that is rotatable about an axis and that has attached thereto a laser source for generating laser pulses for invoking optical emission on a surface of the sample, which laser source is arranged to generate laser pulses focused at a predefined distance from said axis at a predefined distance from a front end of the detector assembly, and an optical receiver for capturing optical emission invoked by said laser pulses.