Optical construction including lens film and mask
Various embodiments of an optical construction and an electronic device that includes such optical construction are disclosed. The optical construction includes a lens film having an outermost structured first major surface and an opposing outermost substantially planar second major surface. The structured first major surface includes a plurality of microlenses. The optical construction further includes a mask disposed adjacent to the second major surface of the lens film, where the mask includes a polymeric layer, a nanoparticle layer, and plurality of laser-ablated openings disposed through the mask. The openings are aligned to the microlenses in a one-to-one correspondence.
1 . An optical construction comprising:
a lens film comprising an outermost structured first major surface and an opposing outermost substantially planar second major surface, the structured first major surface comprising a plurality of microlenses; and
a mask disposed adjacent to the second major surface of the lens film and comprising a polymeric layer, a nanoparticle layer, and plurality of laser-ablated openings disposed through the mask, the openings aligned to the microlenses in a one-to-one correspondence, wherein the nanoparticle layer comprises nanoparticles that are sintered together after the openings are infrared laser ablated through the mask, wherein the nanoparticles are visibly transparent at least from about 450 nm to about 650 nm and infrared absorbing.
2 . The optical construction of claim 1 , wherein the polymeric layer is adapted to absorb light.
3 . The optical construction of claim 1 , wherein the nanoparticle layer is adapted to reflect a first portion of light incident thereon and absorb a second portion of light incident thereon.
4 . The optical construction of claim 1 , wherein the polymeric layer comprises potassium tungsten oxide nanoparticles.
5 . The optical construction of claim 1 , wherein the polymeric layer comprises mixed-valent tungsten oxide nanoparticles.
6 . The optical construction of claim 1 , wherein the polymeric layer comprises silica nanoparticles.
7 . The optical construction of claim 1 , wherein the polymeric layer comprises metal nanoparticles disposed within the polymeric layer.
8 . The optical construction of claim 1 , wherein the nanoparticles of the nanoparticle layer comprise functionalized nanoparticles.
9 . The optical construction of claim 1 , wherein the nanoparticle layer is adapted to absorb light comprising a wavelength of at least 400 nm and no greater than 1500 nm.
10 . The optical construction of claim 1 , wherein the nanoparticles of the nanoparticle layer comprise metal nanoparticles.
11 . The optical construction of claim 1 , wherein the nanoparticles of the nanoparticle layer comprise oxide nanoparticles.
12 . The optical construction of claim 1 , wherein the nanoparticles of the nanoparticle layer comprise plasmonic nanoparticles.
13 . The optical construction of claim 1 , wherein the nanoparticle layer comprises a single layer of the nanoparticles.
14 . An electronic device comprising:
an optical construction comprising:
a lens film comprising an outermost structured first major surface and an opposing outermost substantially planar second major surface, the structured first major surface comprising a plurality of microlenses; and
a mask disposed adjacent to the second major surface of the lens film and comprising a polymeric layer, a nanoparticle layer, and a plurality of infrared laser-ablated openings disposed through the mask, the openings aligned to the microlenses in a one-to-one correspondence, wherein the nanoparticle layer comprises nanoparticles that are sintered together after the openings are laser ablated through the mask, and wherein the nanoparticles are visibly transparent at least from about 450 nm to about 650 nm and infrared absorbing; and
an optical sensor disposed adjacent to the optical construction such that the mask is disposed between the lens film and the optical sensor.
15 . The device of claim 14 , wherein the optical sensor comprises a plurality of sensor pixels aligned to the microlenses of the plurality of microlenses and the openings of the plurality of openings in a one-to-one correspondence.
16 . The device of claim 14 , wherein the nanoparticle layer of the mask is disposed between the second major surface of the lens film and the polymeric layer.
17 . The device of claim 14 , wherein the nanoparticle layer of the mask is disposed at least partially within the polymeric layer.
18 . A biometric or bioanalytic assembly comprising the electronic device of claim 14 .
19 . A molecular analysis assembly comprising the electronic device of claim 14 .