Patent Document ID: 9372145
Application ID: 14395258
Patent Flag: 1

Claim One:
1. A device for quantifying the photoprotective performance of a material, the device comprising: (a) a sample supply and control apparatus comprising: (I) a cell having controlled optical properties, the cell capable of containing a sample comprising one or more photosensitive entities; (II) a sample temperature sensor for monitoring the temperature of the sample within the cell; (III) a temperature control for maintaining the cell at a specified temperature between about −20° C. and about 100° C.; (IV) a dry air supply for delivering low-humidity air to one or more exposed surfaces of the cell; and (V) an agitator for maintaining sample homogeneity within the cell; (b) a light generation and control apparatus comprising: (I) a light source, wherein the light source generates a light beam with a spectral signature between about 290 and about 1000 nm and an intensity between about 0.01 and about 5 W/cm 2 ; (II) a light beam collimating lens; (III) an infrared filter; (IV) a shutter; and (V) an iris; and (c) a test material holder positioned between the light generation and control apparatus and the sample supply and control apparatus such that, when a test material is placed in the test material holder, the light beam impinges upon the test material and any penetrating light impinges upon the cell.