> Randall wrote:
> > Also important is the candlepower (brightness)
Glenn replied :
> Isn't the measure of brightness from an incandescent source called
> lumens these days?
As I understand it, they are different measurements, kind of like horsepower
and torque. Candlepower is a measure of the total light output of the bulb;
while lumens is the brightness in a particular direction.
One candela (the modern, color-corrected version of a candlepower) is one
lumen per steradian.
http://en.wikipedia.org/wiki/Candela
http://en.wikipedia.org/wiki/Steradian
Randall
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