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:
Dec. 04, 2012
Filed:
May. 20, 2009
Nobutaka Kumazaki, Hitachinaka, JP;
Satoshi Takahashi, Hitachinaka, JP;
Hirokazu Kato, Mito, JP;
Takanobu Haga, Kokubunji, JP;
Nobutaka Kumazaki, Hitachinaka, JP;
Satoshi Takahashi, Hitachinaka, JP;
Hirokazu Kato, Mito, JP;
Takanobu Haga, Kokubunji, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
A device and method for fluorescence observation have good operability, high sensitivity, and high acid reliability. The device is used for fluorescence observation using evanescent light. The angle of incidence of the excitation light is adjusted so that the excitation light is totally reflected from the surface of a substrate irrespective of the angle of the substrate surface. The method includes a step of shining the excitation light on the observation substrate while continuously varying the angle of the excitation light with respect to the observation substrate. In addition, the method includes a step of sensing the shone excitation light via optical sensors, and a step of setting the angle of total reflection according to the result of the sensing by the optical sensors. In the present device and method, the direction in which the shone excitation light travels varies with the angle of incidence.