Aspects of the disclosure relate to preventing unauthorized screen capture activity. A computing platform may detect, via an infrared sensor associated with a computing device, an infrared signal from a second device attempting an unauthorized image capture of contents being displayed by a display device of the computing device. Subsequently, the computing platform may determine, via the computing platform, the contents being displayed by the display device. Then, the computing platform may retrieve a record of the contents being displayed by the display device. Then, the computing platform may determine a risk level associated with the infrared signal. Subsequently, the computing platform may perform, via the computing platform and based on the risk level, a remediation task to prevent the unauthorized image capture.

A laminate glass-ceramic article is provided that includes: a core glass layer having a first coefficient of thermal expansion (CTE); and a plurality of clad glass-ceramic layers, each having a CTE that is lower than or equal to the first CTE of the core glass layer. A first of the clad glass-ceramic layers is laminated to a first surface of core glass layer and a second of the clad glass-ceramic layers is laminated to a second surface of the core glass layer. Further, a total thickness of the plurality of clad glass-ceramic layers is from about 0.05 mm to about 0.5 mm. In addition, each of the glass-ceramic layers includes: an alumino-boro-silicate glass, 0 mol %≤MoO.sub.3≤15 mol %, and 0 mol %≤WO.sub.3≤15 mol %, the WO.sub.3 (mol %) plus the MoO.sub.3 (mol %) is from 0.7 mol % to 19 mol %.

A glass sheet contains, as represented by mass percentage based on oxides, SiO.sub.2: 65-75%, Al.sub.2O.sub.3: 0-20%, MgO: 0-5%, CaO: 2-20%, Na.sub.2O: 5-20%, K.sub.2O: 0-10%, total iron in terms of Fe.sub.2O.sub.3 (t-Fe.sub.2O.sub.3): 0.2-1.0%, TiO.sub.2: 0.65-1.5%, and CeO.sub.2: 0.1-2.0%. A ratio of the content of MgO to RO is 0.20 or less, where RO is a total amount of MgO, CaO, SrO and BaO. Fe-redox is from 30 to 57%. The glass sheet has a visible light transmittance Tv_A of 65% or more, a solar transmittance Te of 50% or less, and a dominant wavelength Dw of transmitted light of from 508 to 580 nm, in terms of a 3.9-mm thickness of the glass sheet. A value of A=([t-Fe.sub.2O.sub.3]×Fe-redox)/[TiO.sub.2] is from 20 to 40, where [t-Fe.sub.2O.sub.3] is the content of t-Fe.sub.2O.sub.3 and [TiO.sub.2] is the content of TiO.sub.2.

A glass-ceramic includes a silicate-containing glass and crystals within the silicate-containing glass. The crystals include non-stoichiometric tungsten and/or molybdenum sub-oxides, and the crystals are intercalated with dopant cations.

Aspects of the disclosure relate to preventing unauthorized screen capture activity. A computing platform may detect, via an infrared sensor associated with a computing device, an infrared signal from a second device attempting an unauthorized image capture of contents being displayed by a display device of the computing device. Subsequently, the computing platform may determine, via the computing platform, the contents being displayed by the display device. Then, the computing platform may retrieve a record of the contents being displayed by the display device. Then, the computing platform may determine a risk level associated with the infrared signal. Subsequently, the computing platform may perform, via the computing platform and based on the risk level, a remediation task to prevent the unauthorized image capture.

Aspects of the disclosure relate to preventing unauthorized screen capture activity. A computing platform may detect, via an infrared sensor associated with a computing device, an infrared signal from a second device attempting an unauthorized image capture of contents being displayed by a display device of the computing device. Subsequently, the computing platform may determine, via the computing platform, the contents being displayed by the display device. Then, the computing platform may retrieve a record of the contents being displayed by the display device. Then, the computing platform may determine a risk level associated with the infrared signal. Subsequently, the computing platform may perform, via the computing platform and based on the risk level, a remediation task to prevent the unauthorized image capture.

Optically transparent glass ceramic materials comprising a glass phase containing and a crystalline tungsten bronze phase comprising nanoparticles and having the formula M.sub.xWO.sub.3, where M includes at least one H, Li, Na, K, Rb, Cs, Ca, Sr, Ba, Zn, Cu, Ag, Sn, Cd, In, Tl, Pb, Bi, Th, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and U, and where 0<x<1. Aluminosilicate and zinc-bismuth-borate glasses comprising at least one of Sm.sub.2O.sub.3, Pr.sub.2O.sub.3, and Er.sub.2O.sub.3 are also provided.

The present disclosure provides glass, which has a composition expressed in terms of mole percent, comprising: P.sub.2O.sub.5: 38 to 65%; Al.sub.2O.sub.3: 2 to 15%; CuO: 8 to 25%; Rn.sub.2O: 5 to 40%; RO: 1 to 30%; and V.sub.2O.sub.5: 0 to 3%, wherein Li.sub.2O/Rn.sub.2O is 0.4 to 1.0, and (Li.sub.2O+CuO)/P.sub.2O.sub.5 is 0.3 to 1.2; wherein the content of Rn.sub.2O is the total content of Li.sub.2O, Na.sub.2O, and K.sub.2O; and wherein the content of RO is the total content of MgO, CaO, SrO, and BaO. Through reasonable component design, the glass obtained by the present disclosure has excellent crystallization resistance in the case of high Cu content; moreover, the glass of the present disclosure is suitable for chemical strengthening, and the glass products obtained after chemical strengthening have excellent bending strength.

A near-infrared cut filter glass has: an average transmittance in a wavelength range of 400-550 nm of 50-92%; a transmittance at a wavelength of 700 nm of 40-92%; an average transmittance in a wavelength range of 850-950 nm of 0.0001-70%; and an average transmittance in a wavelength range of 1200-2500 nm of 0.0001-60%.

Provided is a Li.sub.2O—Al.sub.2O.sub.3—SiO.sub.2-based crystallized glass that has a high permeability to light in an ultraviolet to infrared range and is less susceptible to breakage. A Li.sub.2O—Al.sub.2O.sub.3—SiO.sub.2-based crystallized glass contains, in terms of % by mass, 40 to 90% SiO.sub.2, 1 to 10% Li.sub.2O, 5 to 30% Al.sub.2O.sub.3, 0 to 20% SnO.sub.2, over 0 to 20% ZrO.sub.2, 0 to below 2% TiO.sub.2, 0 to 10% MgO, and 0 to 10% P.sub.2O.sub.5 and includes a β-spodumene solid solution precipitated as a main crystalline phase.