公开(公告)号：US20230146740A1

公开(公告)日：2023-05-11

申请号：US17980641

申请日：2022-11-04

Applicant: JASCO CORPORATION

Inventor： Kenichi AKAO ,  Yuji HIGUCHI ,  Tsubasa ASATSUMA

IPC: G01J3/02 ,  G01J3/453

CPC classification number: G01J3/0264 ,  G01J3/021 ,  G01J3/4535 ,  G01J3/027

Abstract: A spectrometer capable of providing information, to a measurer, necessary for determining whether a sample set to the spectrometer is a sample expected by the measurer or not before a main measurement includes a data processor and a display. The data processor calculates a preliminary spectral information of the sample based on at least n of a latest detected signal and a BKG information retained in advance, calculates and updates the preliminary spectral information based on at least n of the latest detected signal and the BKG information again, and repeats these calculations and updates. The display shows the preliminary spectral information that is calculated and updated in the preview display. The data processor starts integration of N (N>n) of the detected signal during a preview display of the preliminary spectral information, and acquires a spectral information of the sample.

公开(公告)号：US20190086332A1

公开(公告)日：2019-03-21

申请号：US16089146

申请日：2017-03-23

Applicant: JASCO CORPORATION

Inventor： Noriaki SOGA ,  Tetsuji SUNAMI ,  Tsubasa ASATSUMA ,  Hiroshi SUGIYAMA ,  Jun KOSHOBU

IPC: G01N21/552 ,  G01N21/3563

CPC classification number: G01N21/552 ,  G01N21/3563

Abstract: An ATR optical instrument condensing an infrared light to a sample-side surface of a ATR crystal to measure a total reflection absorption spectrum includes: an incident-side ellipsoidal mirror condensing the infrared light to the sample-side surface at an incident angle equal to or larger than a critical angle θc inside; an exiting-side ellipsoidal mirror condensing a total reflection light from the sample-side surface; dichroic mirrors guiding an illumination light coaxially to the ellipsoidal mirrors; and a ZnS lens condensing a visible light from the sample-side surface to observe a contact state of the sample. The dichroic mirrors are configured to guide the illumination light to the ellipsoidal mirrors such that the illumination light is condensed to the sample-side surface at an angle less that a critical angle θc′ of the visible light. Accordingly, the ATR optical instrument becomes compact, and can visually observe the contact state of the sample surface.