illuminance2troland: Convert from luminance to troland and effective troland

Description Usage Arguments Value Author(s) References Examples

Description

illuminance2troland convert from illuminance (lux) to conventional retinal illuminance (troland) and effective troland (trolands per effective area). luminance2troland convert from luminance (cd/m^2) to troland and effective troland.

Usage

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luminance2troland(Lv, d=NA)
illuminance2troland(Ev, lumFactor, d=NA)

Arguments

d

diameter in mm

Lv

luminance (cd/m^2)

Ev

illuminance (lux)

lumFactor

luminance factor

Value

troland

conventional retinal illuminance (troland)

effectivetroland

effective troland (trolands per effective area)

Author(s)

Jose Gama

References

#Smith, VC, Pokorny, J, and Yeh, T: The Farnsworth-Munsell 100-hue test in cone excitation space. Documenta Ophthalmologica Proceedings Series 56:281-291, 1993.

Examples

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# Pupil area in mm^2 for diameter = 2 mm
## Not run: illuminance2troland(2)


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