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EP0516274A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Multichannel optical measuring system

Assignee: Kowa Co Ltd
•
Filing: 1992-04-16
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Granted: —
•
Expires: 2012-04-16
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Abstract

Abstract A multichannel optical measuring system comprises an arrangement whereby light from a single light source (1) is directed through a condenser lens (8), and then through a multiple interference filter arrangement (4) in which filters can be selected to select light of prescribed wavelengths, and multiple bundles of quartz optical fibers (51) are used to project the light of the selected wavelengths at glass measurement cuvettes containing biological cell samples (9) that are the measurement targets. This multiple optical fiber arrangement makes it possible to irradiate a multiplicity of glass measurement cuvettes using just one light source and one related optical system, thereby achieving a measurement system that is smaller and more resource-efficient.

Inventors

  • 👤 Yoshiaki Shirasawa

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 18:10
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/251; G01N21/253; G01N21/62; G01N21/63; G01N21/64; G01N2021/6417; G01N2021/6421; G01N2201/00; G01N2201/04; G01N2201/0461; G01N2201/08; G01N2201/0826

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 51 words
A multichannel optical measuring system for measuring optical responses of samples illuminated by light of differing wavelengths, comprising multibranch optical fiber means (5) that is used to illuminate a plurality of measurement sample cuvettes (9) containing samples with illuminating light from a single light source (1) and optical system (2, 4).
Claim 2
Dependent Claim 38 words
An apparatus as set forth in claim 1 in which the multibranch optical fiber means (5) is comprised of non-fluorescent filler (52) and a plurality of quartz optical fibers (51) randomly divided into a plurality of multistrand bundles.
Claim 3
Dependent Claim 44 words
An apparatus as set forth in claim 1 or 2 in which the measurement sample cuvettes (9) are round glass cuvettes and means are provided to attenuate stray light from the illuminating light from the multibranch optical fiber means and measurement sample cuvette autofluorescence.
Claim 4
Independent Claim 71 words
An apparatus as set forth in one of claims 1 to 3 in which a common photosensor (8) is used to measure the intensity of illuminating light transmitted by measurement sample cuvettes (9) along an optical axis at right-angles to the optical axis of the illuminating light from the multibranch optical fiber means (5), and the intensity of fluorescent light produced by the illuminating light from the multibranch optical fiber means.

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