Optical fiber type spectroscope and spectroscope system...

Details Optical fiber type spectroscope and spectroscope system... Optical fiber type spectroscope and spectroscope system...

2007-10-23

2007-10-23

Evans, F. L. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

C356S318000

Reexamination Certificate

active

11289315

ABSTRACT:
A spectroscope includes an optical fiber218, a collimator optical system231for collimating signal light come out from the optical fiber218, a spectroscopic element233for dispersing the signal light collimated by the collimator optical system231, a detector237composed of a plurality of detector elements237adisposed at least in a direction of dispersion and detecting the light dispersed by the spectroscopic element233, and a focusing optical system236for focusing the signal light come out from the detector237onto a detecting surface of the detector237. It is set such that the focusing optical system236makes a diameter of a spot of the signal light focused on the detecting surface of the detector237smaller than an arranged pitch of the detector237and a numerical aperture of the collimator optical system231is larger than that of the optical fiber218.

REFERENCES:
patent: 6909542 (2005-06-01), Sasaki
patent: 9-210783 (1997-08-01), None
patent: 2002-267933 (2002-09-01), None
patent: WO97/25915 (1997-07-01), None

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