George Wald
![](/Images/godic/202502/20/George_Wald_nobel2314.jpg")
![Wald plotted the absorbance of rod pigment (black curve), then later the absorbance of cone pigments (red, green, and blue curves)](/Images/godic/202502/20/Cone-response.svg2314.png")
George David Wald (November 18, 1906 – April 12, 1997) was an American scientist who is best known for his work with pigments in the retina. He won a share of the 1967 Nobel Prize in Physiology or Medicine with Haldan Keffer Hartline and Ragnar Granit.