Powder fiber optic probe having angled end in NIR optical analyz

Details Powder fiber optic probe having angled end in NIR optical analyz Powder fiber optic probe having angled end in NIR optical analyz

1990-11-28

1992-11-24

McGraw, Vincent P.

Optics: measuring and testing

Of light reflection

With diffusion

25022729, G01N 2131, G01N 2147

Patent

active

051667568

ABSTRACT:
In an optical instrument for infrared spectral analysis of powder, an improved fiber optic probe is provided. Fiber optics carry light to and from the probe and the fiber optics terminate in the probe in a fiber optic endface. A sapphire rod is positioned to abut the fiber optic endface. The sapphire rod has a distal endface arranged at slightly less than one-half the maximum acceptance angle of the optic fibers in the probe.

REFERENCES:
patent: 4180331 (1979-12-01), Lundstrom
patent: 4449535 (1984-05-01), Renault
patent: 4737006 (1988-04-01), Warbrick
patent: 4753530 (1988-06-01), Knight et al.

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