1
1. INTRODUCTION
The meter is an easy-to-use, precision photometric meter
designed for use in the field, laboratory, or production floor. The
meter measures luminous flux from source such as LED’s, small
lamps, and fibre-illuminators. The meter features a 75mm
diameter integrating shpere that collects the total light entering
the sphere measurement port.
The integrating is the ideal optical device for measuring luminous
flux from a source placed inside the sphere or just outside the
sphere sample port.
It meets CIE photopic spectral response, f ’
1
≦
6%.
The meter is compact, tough and easy to handle owing to its
construction.
The light sensitive component used in the meter is a very
stable, long-life silicone photo diode and spectral response filter.
Measure LED’s, small lamps, and fibre-illuminators.
Measure narrowband and broadband sources.
Measure highly divergent sources.
Reduced sensitivity to light source alignment.
Reduced sensitivity to polarization.
Omits error introduced from detector area non-uniformities.
U.S. Pat. No. Des. 446,135
Taiwan Pat. No. M 342502
