Systems and methods for a multiple angle light scattering...

Details Systems and methods for a multiple angle light scattering... Systems and methods for a multiple angle light scattering...

2006-06-13

2009-11-10

Punnoose, Roy (Department: 2886)

Optics: measuring and testing

By particle light scattering

With photocell detection

C356S336000

Reexamination Certificate

active

07616311

ABSTRACT:
A particle detection system uses a reflective optic comprising a curved surface to detect high angle scattered light generated by a particle in a liquid medium, when a laser beam is incident on the particle. When the particles transit the laser beam, light is scattered in all directions and is described by MIE scattering theory for particles about the size of the wavelength of light and larger or Rayleigh Scattering when the particles are smaller than the wavelength of light. By using the reflective optic, the scattered light can be detected over angles that are greater than normally obtainable.

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PCT/US06/23043, International Search Report and Written Opinion of the International Searching Authority mailed Sep. 12, 2007.

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