INTERIOR LIGHT TRAPPING LININGAll lenses are lined with a specially engineered light absorbing surface that is equally effective at all angles of incidence. Unlike “decorative” flocking grades, the fibers of this lining won’t shed on any of the optical surfaces. The material is 100% synthetic based, so it's not damaged by moisture. This “light trapping lining” has been added because prism based anamorphic lenses produce reflections that occur within the prism enclosure. This stray light can decrease on screen contrast as any light that reaches the screen unintentionally will do. The lining is designed to absorb 99% of all visible light. For comparison, typical flat black paint absorbs about 95% of all light. This results in a 4% advantage when applying this special lining. Please see material specification and spectral reflectivity response graph below
Material Specifications
Weight per area: ___________.___0.89 oz./ft² (0.27 kg/m²)
Thickness: ____________________0.023 - 0.025" (0.58 - 0.64 mm)
(uncompressed)
Avg. visible reflectivity @ 0 deg.: _less than 0.4%
Avg. visible reflectivity @ 80 deg.: less than 0.7%
Thermal expansion coeff: ________42 x 10(-6) in/in/F
______________________________(75 x 10(-6)m/m/K)
Environmental temp range: ______-30º to 150º F (-35º to 65º C)
Spectral Reflectivity Response Graph
