Английская Википедия:Apostilb

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The apostilb is an obsolete unit of luminance.[1] The SI unit of luminance is the candela per square metre (cd/m2). In 1942 Parry Moon proposed to rename the apostilb the blondel, after the French physicist André Blondel.[2] The symbol for the apostilb is asb.

The apostilb is defined in terms of another unit of luminance, the stilb (sb):

1 asb = 1/Шаблон:Pi ⋅ 10−4 sb
Шаблон:Pi asb = 1 cd/m2

Шаблон:Luminance conversions

Table of SI photometry quantities for reference

Шаблон:SI light units

See also

Other units of luminance:

References

Шаблон:Reflist