Glass has a refractive index of 1.55 or more, and has, in an x-ray absorption fine structure (XAFS) analysis of platinum, a peak intensity ratio expressed by A.sub.max/A.sub.ave of 1.13 or more, where A.sub.max denotes a maximum value of a white line within an energy range of 13,270 eV to 13,290 eV, and A.sub.ave denotes an average absorption in an energy range of 13,290 eV to 13,390 eV.

Provided is a near infrared absorbing glass excellent in each of weather resistance, resistance to denitrification, and optical properties even if not containing fluorine. A near infrared absorbing glass containing, in % by mass, 25 to 60% P.sub.2O.sub.5, 2 to 19% Al.sub.2O.sub.3, 10 to 45% RO (where R is at least one selected from Mg, Ca, Sr, and Ba), 0 to 13% ZnO, 12% to 20% (exclusive of 12% and 20%) K.sub.2O, 0 to 12% Na.sub.2O, and 0.3 to 20% CuO.

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 glass composition comprises a germanosilicate glass containing 5-35 mol % ZnO. The glass composition has a relatively high refractive index, good glass-forming ability, and UV-shielding properties.

An optical glass has a refractive index (n.sub.d) of 1.64 or more. A P value represented by the following formula (1) is in a range of 7.0<P value<10.0: P value=log(A.sub.450×P.sub.450+A.sub.550×P.sub.550+A.sub.650×P.sub.650+A.sub.750×P.sub.750) (1). A.sub.450, A.sub.550, A.sub.650 and A.sub.750 are absorbances of the optical glass with a plate thickness of 10 mm at a wavelength of 450 nm, 550 nm, 650 nm and 750 nm, respectively. P.sub.450, P.sub.550, P.sub.650 and P.sub.750 are radiances of light having a wavelength of 450 nm, 550 nm, 650 nm and 750 nm, respectively, at 1,300° C. according to Planck's radiation law. All of internal transmittances in terms of a 10-mm thickness at wavelengths of 450 nm, 550 nm, 650 nm and 750 nm are 91% or more.

An optical glass has a refractive index (n.sub.d) of 1.64 or more. A P value represented by the following formula (1) is in a range of 7.0<P value<10.0: P value=log(A.sub.450×P.sub.450+A.sub.550×P.sub.550+A.sub.650×P.sub.650+A.sub.750×P.sub.750) (1). A.sub.450, A.sub.550, A.sub.650 and A.sub.750 are absorbances of the optical glass with a plate thickness of 10 mm at a wavelength of 450 nm, 550 nm, 650 nm and 750 nm, respectively. P.sub.450, P.sub.550, P.sub.650 and P.sub.750 are radiances of light having a wavelength of 450 nm, 550 nm, 650 nm and 750 nm, respectively, at 1,300° C. according to Planck's radiation law. All of internal transmittances in terms of a 10-mm thickness at wavelengths of 450 nm, 550 nm, 650 nm and 750 nm are 91% or more.

A soda lime glass plate has, on the basis of oxides, a total sulfur content in terms of SO.sub.3 of 0.001 to 0.2% in mass %, a total iron content in terms of Fe.sub.2O.sub.3 of 0.15 to 0.4% in mass %, and a total tin content in terms of SnO.sub.2 of 0.02 to 1% in mass %, and has a mass proportion of a divalent iron in terms of Fe.sub.2O.sub.3 in the total iron in terms of Fe.sub.2O.sub.3 of 45 to 70%. The soda lime glass plate has, as a conversion value for a 3.85 mm-thickness glass plate, a visible light transmittance Tv_A of 70% or more, a total solar transmittance Tts of 63.7% or less, and c* in the L*a*b* color space of 4 or less.

A soda lime glass plate has, on the basis of oxides, a total sulfur content in terms of SO.sub.3 of 0.001 to 0.2% in mass %, a total iron content in terms of Fe.sub.2O.sub.3 of 0.15 to 0.4% in mass %, and a total tin content in terms of SnO.sub.2 of 0.02 to 1% in mass %, and has a mass proportion of a divalent iron in terms of Fe.sub.2O.sub.3 in the total iron in terms of Fe.sub.2O.sub.3 of 45 to 70%. The soda lime glass plate has, as a conversion value for a 3.85 mm-thickness glass plate, a visible light transmittance Tv_A of 70% or more, a total solar transmittance Tts of 63.7% or less, and c* in the L*a*b* color space of 4 or less.

The invention relates to an optical lens comprising a substrate having a front main face and a rear main face, at least one of the main faces comprising a multilayer antireflection coating having a stack of at least one high refractive index layer and at least one low refractive index layer, wherein the multilayer antireflection coating(s) present on the main face(s) provide(s) the optical lens with an average blue light reflection factor R.sub.m.sup.B1 within a wavelength range of from 420 nm to 450 nm, which is higher than or equal to 17%, for an angle of incidence ranging from 0° to 15°, and the multilayer antireflection coating provides said at least one main face with a mean light reflection factor R.sub.v between 380 nm and 780 nm lower than or equal to 0.5%, for an angle of incidence ranging from 0° to 15°.

An automotive LiDAR glazing with at least one glass sheet having an absorption coefficient lower than 5 m.sup.−1 in the wavelength range from 750 to 1650 nm and having an external face and an internal face. An infrared-based remote sensing device emitting and/or receiving p-polarized laser signal in the wavelength range from 750 to 1650 nm is placed on the internal face of the glass sheet.