Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1998-06-15
2000-01-18
Kim, Robert
Optics: measuring and testing
By particle light scattering
With photocell detection
356337, 356 731, G01N 2100
Patent
active
060161957
ABSTRACT:
The present invention relates to a fiber optic detector for detection of scattered light or fluorescent light from a liquid suspension, comprising: a lighting optical fiber for transmitting light to a lighting optical fiber outlet; a first gradient index lens disposed at the lighting optical fiber outlet to parallelize light; a detecting optical fiber for transmitting back-scattered light from a detecting optical fiber inlet; a second gradient index lens disposed at the detecting optical fiber inlet to parallelize back-scattered light; and at least one means for focusing parallelized light transmitted from the lighting optical fiber on a point and for focusing light back-scattered from the point to the second gradient index lens of the detecting optical fiber for transmission by the detecting optical fiber.
REFERENCES:
patent: 4099875 (1978-07-01), McMahon
patent: 5141312 (1992-08-01), Thompson
Wiese, H. and Horn, D., "Single-mode fibers in fiber-optic quasielastic light scattering: A study of the dynamics of concentrated latex dispersions", May 15, 1991, J. Chem. Phys. 94(10), American Institute of Physics, pp. 6429-6443.
Ansari, Rafat R. et al., "Microemulsion characterization by the use of a noninvasive backscatter fiber optic probe", Jul. 20, 1993, Applied Optics, vol. 32, No. 21, pp. 3822-3827.
Rogers, Richard B. et al., "A Compact Laser Light Scattering Instrument for Microgravity Research", 1996, Photon Correlation & Scattering, 1996 Technical Digest Series, vol. 14, pp. 40-42.
Ricka, Jaroslav, "Dynamic light scattering with single-mode and multimode receivers", May 20, 1993, Applied Optics, vol. 32, No. 15, pp. 2860-2875.
ALV-Laser Vertriebsgesellschaft mbH
Kim Robert
Ratliff Reginald
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