Apparatus and method for photometric measurement of oil present

Details Apparatus and method for photometric measurement of oil present Apparatus and method for photometric measurement of oil present

1982-06-22

1985-01-22

McGraw, Vincent P.

Optics: measuring and testing

With sample preparation

356 70, 356244, G01N 110, G01N 3326

Patent

active

044948697

ABSTRACT:
A photometric skin condition analyzer is provided which exploits the light refraction and Rayleigh scattering from small particles, such as droplets of oil, deposited on optically smooth sampling surfaces of a sampling pellet. Light emitted from an optical source is passed through the sampling surface and focused onto an optical detector. The output signal of the detector is displayed to give an indication of the degree of oiliness of the skin.

REFERENCES:
patent: 2059374 (1936-11-01), Logan et al.
patent: 2766653 (1956-10-01), Martin et al.

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