This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionLuminosityCurve3.svg
English: Luminosity curves (luminous efficiency functions) of color normal (black, solid), deuteranope (green, dashed) and protanope (red, dotted).
Adapted from User:Raoul NK to be color blind friendly.
Date
Source
Own work
Author
Curran919
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.