| CPC G02B 5/26 (2013.01) [G02B 5/206 (2013.01); G02B 5/208 (2013.01); G02B 5/22 (2013.01); G02B 5/223 (2013.01); G02B 5/281 (2013.01)] | 9 Claims |

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1. An article comprising an optical filter, the optical filter configured to provide near-infrared transmission such that a near-infrared pattern can be sensed through the optical filter, wherein the optical filter comprises:
a wavelength selective scattering layer, wherein the wavelength selective scattering layer has an average visible scattering of greater than 10%,
a wavelength selective reflective layer, and
at least one wavelength selective absorbing layer, wherein each wavelength selective layer is configured to transmit near-infrared wavelengths,
wherein the optical filter has a visible transmittance of less than 5% and a near-infrared transmittance of greater than 75% for wavelengths greater than 900 nm.
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