Lux

From International Dictionary of Marine Aids to Navigation
Jump to navigation Jump to search

2-1-060

Lumen per Square Metre

The SI Unit: of illuminance. The illuminance produced by a luminous flux of one lumen uniformly distributed over a surface of area one square metre.

Symbol: lx, lm/m2 1 lx = 1 lm/m2

Other metric Unit: phot (ph)

Non-metric units footcandle (fc)

sea-mile candela (s.m.c.)

1 fc = 1 lumen per square foot (lm/ft2)

1 s.m.c. = 1 lumen per square sea-mile

1 lx = 10-4 phot = footcandle

= 3.43 x 106 sea-mile candela

C.I.E.(modified)




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

International System of Units

square metre

second

metre

Contrast

Celsius (previously Centigrade)

Capacitance

charge current

Intensity

Illuminance

Energy

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM