Luster detector

Details Luster detector Luster detector

1992-06-16

1994-11-22

McGraw, Vincent P.

Optics: measuring and testing

Of light reflection

With diffusion

356445, 356375, 356376, 356429, 2503411, 250353, G01N 2147

Patent

active

053673794

ABSTRACT:
A luster detector arranged such that an output light beam of an LED is applied to a surface through a light projecting lens as an irradiating light beam having a predetermined width. Rays of light reflected from the surface are applied through a condenser lens to a line sensor. Of the rays of light reflected from the surface, the rays of light reflected regularly form a light spot on a light detecting section extending in the longitudinal direction of the light detecting section. Hence, even if the light receiving position is shifted, the light detecting operation is positively achieved. A detecting circuit determines the light reception distribution of the sensor to detect the luster of the surface.

REFERENCES:
patent: 4553033 (1985-11-01), Hubble, III et al.
patent: 4846578 (1989-07-01), Morita et al.

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