Particle sensor with fiber optic conductor

Details Particle sensor with fiber optic conductor Particle sensor with fiber optic conductor

1997-06-26

1998-03-24

Font, Frank G.

Optics: measuring and testing

For size of particles

By particle light scattering

356338, G01N 1502, G01N 2100

Patent

active

057318751

ABSTRACT:
The new particle sensor is used for assaying particles and includes a light source comprising one or a plurality of light-emitting laser diodes. Light from each diode propagates along a flexible conduit or "light pipe," preferably a separate fiber optic strand. The sensor has a low voltage power supply and drives the diodes at 1-5 VDC. Light from one or bundled fiber optic strand(s) is focused by a focusing lens to provide an intense light beam for small-particle detection. For improved design flexibility, the light source may be mounted independently of the light beam long axis.

REFERENCES:
patent: 4140395 (1979-02-01), Kreikebaum
patent: 4728190 (1988-03-01), Knollenberg
patent: 4871251 (1989-10-01), Preikschat et al.
patent: 5181082 (1993-01-01), Jeannotte et al.
patent: 5394489 (1995-02-01), Koch
patent: 5467189 (1995-11-01), Kreikebaum et al.
Opto Power Corporation--High Power Diode Lasers Brochure, Jul. 1994--4 pages.

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