INFRARED LIGHT SHIELDING FILM, METHOD FOR INSTALLING INFRARED LIGHT SHIELDING FILM, AND METHOD FOR PREVENTING OCCURRENCE OF IRIS ON INFRARED LIGHT SHIELDING FILM

摘要

The objective of the present invention is to provide: an infrared light shielding film which is prevented from interference patterns (iris irregularity) under a three-wavelength fluorescent lamp and has excellent adhesiveness and durability; a method for installing the infrared light shielding film; and a method for preventing the occurrence of iris on the infrared light shielding film. An infrared light shielding film according to the present invention comprises, on at least one surface of a base, an infrared light reflecting layer unit, which is configured by laminating a plurality of low-refractive-index layers and a plurality of high-refractive-index layers, and a specific functional layer. This infrared light shielding film is characterized in that: the low-refractive-index layers or the high-refractive-index layers in the infrared light reflecting layer unit contain metal oxide fine particles; and the specific functional layer laminated on the infrared light reflecting layer unit has a total thickness of 10μm or more.