illuminance2troland: Convert from luminance to troland and effective troland

In CVD: Color Vision Deficiencies

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

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

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

Example output

CVD documentation built on May 2, 2019, 1:58 p.m.