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PCE
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IPC Subgroup
G01J 1/6

by measuring the pupil of the eye

Introduced: September 1968

Last revised: January 2006

Full Title

Photometry, e.g. photographic exposure meter > by measuring the pupil of the eye

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY