Prereceptoral filters. The CVRL functions are provided either as ascii csv (comma separated values) files, as ascii xml (extensible markup language) files, as html tables, which appear in your browser window, or as dynamic graphical plots. Select the data format and the data stepsize, and click the "Submit" button. The other functions are provided as ascii csv files. Click on for the data files or "Plot" for a graphical plot. For further details and references click .
Wyszecki & Stiles (1967; 1982)
Lens density spectrum proposed by Stockman, MacLeod & Johnson (1993)
van Norren & Vos (1974)
Wyszecki & Stiles (1967;1982)