Spectrometer and spectrally separating method

Details Spectrometer and spectrally separating method Spectrometer and spectrally separating method

2006-05-02

2006-05-02

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By shade or color

With color transmitting filter

C356S416000, C250S226000

Reexamination Certificate

active

07038778

ABSTRACT:
A light from a light source is transmitted through a sample cell and is made incident into a spectroscopic portion. The spectroscopic portion comprises interference filters which transmit light components different in wavelengths and photodiodes corresponding to the respective interference filters. Dielectric films to compose an interference filter have relatively satisfactory features to reflect a light component of wavelengths other than a light component of a wavelength to be transmitted. At each interference filter, an incident light is split into a light component to be transmitted and a light component to be reflected. By making the reflected light component into an incident light into a following-order interference filter, light components of nine wavelength types are detected.

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