System for measuring transmission of light

A system for measuring transmission of light through a pair of eyeglasses including at least one eyeglass lens mounted in an eyeglass frame with a position of wear, the system comprising:

• a light source that simulates the solar spectrum over at least a portion of the range of wavelengths from about 280 nm to about 700 nm;
• a support sized and shaped as a human head for mounting the eyeglasses, the support having features corresponding to a nose, an ear and an eye, wherein the nose and ear are configured to mount the eyeglasses with the position of wear relative to the eye;
• and
• a light detector coupled to the support at the eye.

A system for comparing the transmission of light through first and second eyeglasses, respectively having first and second eyeglass lenses, the system comprising:

• a light source;
• first and second supports for respectively mounting the first and second eyeglasses, the first and second supports having about the same distance from and mirror orientation to the light source;
• and
• first and second light detectors respectively coupled to the first and second supports and positioned to receive light from the light source transmitted through the first and second eyeglass lenses.