Varying irradiance and exposure time to achieve a specified energy density affects phototherapy outcomes in this model. Variation of exposure time and irradiance may account for conflicting results in the literature. Further studies of these effects are warranted.

A digital cinema projector developed by Eastman Kodak Company, utilizing three JVC QXGA liquid crystal displays (LCDs), and providing 12,000 lumens, 2,000:1 contrast, and 3 Mpixel resolution, is described. This system, which has a novel optical configuration, wire grid polarizers and polarization compensators, provides high contrast at low F#, a large color gamut, and minimal stress birefringence at high power.

Abstract— A digital cinema projector that utilizes three JVC QXGALCDs, and provides 12,000 lumens, 2000:1 contrast, and 3‐Mpixel resolution was developed. This system, which was described in a prior paper (see Ref. 10), has a novel optical configuration based on the use of intermediate imaging optics and wire‐grid polarizers and is described in greater detail in this paper. The polarization optics, including the polarization compensators, contribute to a system that provides high contrast at a low f/#, with a wide color gamut and minimal color shading at high power.