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:
May. 02, 2006
Filed:
Jul. 05, 2002
Shirou Sakai, Hamamatsu, JP;
Shirou Sakai, Hamamatsu, JP;
Hamamatsu Photonics K.K., Shizuoka, JP;
Abstract
A spectroscopic system according to the present inventioncomprises: an optical fiber bundlewhose emitting endis arranged in a vertical direction; a slitwhich is arranged so as to oppose the emitting endof the optical fiber bundle; spectroscopic element arrangement meanswhich can switchably arrange either a first diffraction gratingin which grooves extending along the vertical direction are arranged in a horizontal direction at a predetermined groove density, or a second diffraction gratingin which grooves extending along the vertical direction are arranged in the horizontal direction at a groove density larger than that of the first diffraction grating, on an optical path of light which is emitted from the emitting endof the optical fiber bundleand passes through the slit; and a photomultiplier tubein which a plurality of anodesextending along the vertical direction are arranged in the horizontal direction.