Top Qs
Timeline
Chat
Perspective
Flick (physics)
Unit of spectral radiance From Wikipedia, the free encyclopedia
Remove ads
In optical engineering and telecommunications engineering, the flick is a unit of spectral radiance. One flick corresponds to a spectral radiance of 1 watt per steradian per square centimeter of surface per micrometer of span in wavelength (W·sr−1·cm−2·μm−1). This is equivalent to 1010 watts per steradian per cubic meter (W·sr−1·m−3). In practice, spectral radiance is typically measured in microflicks (10−6 flicks).[1] One microflick is equivalent to 10 kilowatts per steradian per cubic meter (kW·sr−1·m−3).[2]
Remove ads
History
In radio astronomy, the unit flik was coined by a group at Lockheed in Palo Alto, California as a substitute for the SI derived unit W cm−2 sr−1 μm−1, or watts divided by centimeters squared, steradians, and micrometers.[3] While originally used only at Lockheed, many in the radio astronomy field adopted its use.
References
Wikiwand - on
Seamless Wikipedia browsing. On steroids.
Remove ads