Simple exponential functions describing the absorbance bands of visual pigment spectra

Vision Res. 1993 May;33(8):1011-7. doi: 10.1016/0042-6989(93)90237-q.


Literature data for visual pigment spectra are formally treated by assuming that the spectra consist of a summation of absorbance bands, that the shape of the bands is invariant according to the Mansfield-MacNichol transform and that this shape is described by simple exponential functions. A new template for constructing visual pigment spectra from peak wavelengths is derived.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Cattle
  • Mathematics
  • Retinal Pigments / chemistry*
  • Spectrum Analysis
  • Vitamin A / analysis


  • Retinal Pigments
  • Vitamin A