The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2020
Filed:
Mar. 22, 2018
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Shinji Taniguchi, Tokyo, JP;
Kyosuke Yamane, Tokyo, JP;
Kenichi Sabatake, Tokyo, JP;
Naoki Goto, Tokyo, JP;
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An object is the provision of an optical measuring device that can be carried readily due to its reduced size and that can suppress the incidence of light other than detection light upon a light receiving unit and thus can obtain a measurement result with high accuracy. The optical measuring device includes a first light guiding path forming body having therein a first light guiding path formed by a through hole extending linearly for allowing measurement light from a light source to be incident on a measuring position in which a measurement sample is disposed, and a second light guiding path forming body having therein a second light guiding path formed by a through hole extending linearly for guiding detection light having exited from the measuring position to a light receiving unit. In the measuring position, the measurement light is incident and the detection light is exited through a sample bracket having a sample tube receiving hole into which the s sample tube loaded with the measurement sample is inserted. The second light guiding path forming body is formed from a light-absorbing material. Whole of the second light guiding path is formed surrounded by an inner wall surface of the through hole in the second light guiding path forming body. A relational expression (1) described below is satisfied when d represents a diameter of the second light guiding path of the second light guiding path forming body and L represents a length of the second light guiding path of the second light guiding path forming body.3≤≤15.  Relational expression (1):