EXTENDED BLACKBODY CALCULATOR

The calculation assumes a large (extended) blackbody source with specific lens (Optics), dewar window (Window), and filter transmission values. The filter can have up to two different wavelength bands. Enter nothing or 0 into one of the bands to disable that band. Note that overlapping bands are allowed though are not physically realizable.

 The blackbody temperature and the various elements that determine the system f/# have the ability to specify the units for the values. After a units change, the value displayed is converted to the new units.

The calculated parameters are shown in the beige box in real-time and include the total integrated focal plane flux (or radiance) in photon or power units along with the sensitivity of this flux (radiance) to a 1 Kelvin temperature change.

Any errors are indicated with calculated results of 0 or with yellow backgrounds in the errant parameter entry boxes.

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