Apparatus for measuring the amount of sebum secreted by the skin

Details Apparatus for measuring the amount of sebum secreted by the skin Apparatus for measuring the amount of sebum secreted by the skin

1979-05-25

1980-09-30

Howell, Kyle L.

Surgery

Truss

Pad

356 36, 356 70, A61B 500, A61B 1000

Patent

active

042249503

ABSTRACT:
Apparatus for measuring the secretions of sebum of a skin sample of a living subject comprises a frosted glass plate spring urged to project from a casing (using a calibrated spring). When pressed against the forehead of a living subject the frosted plate retracts yieldably to collect sebum under reproducible conditions.
A reference scale inside the casing of the apparatus is illuminated from a known light source and is observed from outside by looking through the greasy plate. The sebum secretion is measured by changing the position of the scale, or changing the line thickness of a reference mark on the scale until a sharp, fine image of the reference mark can be seen.

REFERENCES:
patent: 2224123 (1940-12-01), Wilson
patent: 2291562 (1942-07-01), Reysa et al.
patent: 3906933 (1975-09-01), Tur et al.

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