Multilayer optical film and glass laminate including same

A multilayer optical film comprising:

• a plurality of alternating polymeric first and second layers numbering at least 20 in total, each of the first and second layers having an average thickness of less than about 500 nm;
• and
• optically absorptive material dispersed in at least one layer of the multilayer optical film, wherein for a substantially normally incident light and for each of two mutually orthogonal polarization states, the multilayer optical film has an average optical transmittance in a visible wavelength range extending from about 450 nm to about 650 nm of about 0.5% to about 40%, an average optical reflectance in the visible wavelength range of less than about 40%, and an average optical reflectance in an infrared wavelength range extending from about 850 nm to about 1200 nm of greater than about 60%, and wherein for a light incident on the multilayer optical film from an illuminant D65, the multilayer optical film reflects and transmits portions of the incident light as reflected and transmitted lights having, in a CIE L*a*b* color space, respective “b*” colorimetric parameters br1* and bt1* for an incident angle of less than about 10 degrees and respective “b*” colorimetric parameters br2* and bt2* for an incident angle of about 60 degrees, a magnitude of a difference between each of br1* and br2*, and bt1* and bt2* being less than about 35.

A multilayer optical film comprising:

• a plurality of alternating polymeric first and second layers numbering at least 20 in total, each of the first and second layers having an average thickness of less than about 500 nm;
• and
• optically absorptive material dispersed in at least one layer of the multilayer optical film, wherein for a substantially normally incident light and for each of two mutually orthogonal polarization states, the multilayer optical film has an average optical transmittance in a visible wavelength range extending from about 450 nm to about 650 nm of about 0.5% to about 40%, an average optical reflectance in the visible wavelength range of less than about 40%, and an average optical reflectance in an infrared wavelength range extending from about 850 nm to about 1200 nm of greater than about 60%, and wherein for a light incident on the multilayer optical film from an illuminant D65 at an incident angle, the multilayer optical film transmits a portion of the incident light as a transmitted light having, in a CIE L*a*b* color space, an “a*” colorimetric parameter at* and a “b*” colorimetric parameter bt*, a magnitude of each of at* and bt* remaining less than about 35 as the incident angle varies continuously from less than about 10 degrees to at least about 40 degrees.

A multilayer optical film comprising:

• a plurality of alternating polymeric first and second layers numbering at least 20 in total, each of the first and second layers having an average thickness of less than about 500 nm;
• and
• optically absorptive material dispersed in at least one layer of the multilayer optical film, wherein for a substantially normally incident light and for each of two mutually orthogonal polarization states, the multilayer optical film has an average optical transmittance in a visible wavelength range extending from about 450 nm to about 650 nm of about 0.5% to about 40%, an average optical reflectance in the visible wavelength range of less than about 40%, and an average optical reflectance in an infrared wavelength range extending from about 850 nm to about 1200 nm of greater than about 60%, and wherein for a light incident on the multilayer optical film from an illuminant D65 at an incident angle, the multilayer optical film reflects a portion of the incident light as a reflected light having, in CIE L*a*b* color space, an “a*” colorimetric parameter ar* and a “b*” colorimetric parameter br*, a magnitude of each of ar* and br* remaining less than about 45 as the incident angle varies continuously from less than about 10 degrees to at least about 40 degrees.