G02B1/116

OPTICAL ARTICLE COMPRISING AN INTERFERENCE COATING WITH HIGH REFLECTIVITY IN THE ULTRAVIOLET REGION
20170351119 · 2017-12-07 ·

The present invention relates to a transparent ophthalmic lens comprising a substrate having a main front face and a main rear face, said main front face being coated with a multilayer interference coating, preferably an anti-reflection coating, comprising a stack of at least one layer have a refractive index greater than 1.6 and at least one layer having a refractive index less than 1.55, characterised in that: the mean reflection factor on said main front face coated with said interference coating, between 350 nm and a wavelength between 380 and 400 nm, preferably between 350 and 380 nm, weighted by the function W(I), is greater than or equal to 35% for at least one angle of incidence between 0° and 17°; the light reflection factor at 400 nm on said main front face coated with said interference coating is less than or equal to 35% for at least one angle of incidence between 0° and 17°.

LIGHT EMITTING DEVICE ARRAY

A light emitting device array is provided. The light emitting device array comprises a light emitting stack, a first electrical contact layer, an array of second electrical contacts, and an anti-reflection layer. The light emitting stack has a light emitting surface and a contact surface. The light emitting surface and the contact surface define opposing sides of the light emitting stack. The light emitting stack comprises a plurality of Group III-nitride layers including a first semiconducting layer provided towards the light emitting surface of the light emitting stack, a second semiconducting layer provided towards the contact surface, and an active layer arranged between the first semiconducting layer and the second semiconducting layer, the active layer configured to generate light having a first wavelength. The light emitting surface and the contact surface are parallel to each other and aligned with the plurality of Group III-nitride layers. The first electrical contact layer is provided on the light emitting stack and is configured to be in electrical contact with the first semiconducting layer. The array of second electrical contacts is provided on the contact surface of the light emitting stack. Each second electrical contact defines a light emitting device between the first semiconducting layer and the second electrical contact. Each of the second electrical contacts is spaced apart from the other second electrical contacts to form a two-dimensional array of light emitting devices. The anti-reflection layer is provided on the light emitting surface. The anti-reflection layer is configured to increase a light extraction efficiency of the light generated by the light emitting stack.

MULTILAYER COATING FOR OPTICAL SOLAR REFECTOR
20230176257 · 2023-06-08 ·

A product comprising a substrate and a multilayer coating for the thermal control of a surface comprising a first inner layer intended to be deposited on said surface, a second intermediate layer applied on said first inner layer and a third outer layer applied on said second intermediate layer in which: said first inner layer comprises a co-dispersion of conductive nanoparticles and dielectric nanoparticles

MULTILAYER COATING FOR OPTICAL SOLAR REFECTOR
20230176257 · 2023-06-08 ·

A product comprising a substrate and a multilayer coating for the thermal control of a surface comprising a first inner layer intended to be deposited on said surface, a second intermediate layer applied on said first inner layer and a third outer layer applied on said second intermediate layer in which: said first inner layer comprises a co-dispersion of conductive nanoparticles and dielectric nanoparticles

UV-TRANSPARENT CONDUCTING FILMS, OPTICAL STACK, AND METHODS OF MAKING THE SAME

The present disclosure relates to transparent conducting films (TCF). In particular, the disclosed TCF are transparent to ultraviolet (UV) light. The TCF can be grown by radio frequency (RF) sputtering and remain in the advantageous perovskite phase. Optical stacks made of substrates with deposited TCF are also disclosed.

POLARIZATION PLATE, PRODUCTION METHOD THEREFOR, AND OPTICAL APPARATUS
20230168422 · 2023-06-01 ·

This polarization plate is a polarization plate with a wire grid structure, having a transparent substrate, a plurality of projections which are formed on a first surface of the transparent substrate, extend in a first direction, and are arrayed at a pitch that is shorter than the wavelength of the used light region, and an antireflection layer which is formed on a second surface of the transparent substrate on the opposite side from the first surface, wherein surfaces of the plurality of projections and a surface of the antireflection layer are covered with protective films respectively formed from a second dielectric material.

SPECTACLE LENS AND SPECTACLES

Provided a spectacle lens including a lens base material and a multilayer film provided on each surface of an eyeball-side surface and an object-side surface of the lens base material, in which a mean reflectance R.sub.B(object) in a wavelength range of 430 to 450 nm measured on the object-side surface of the spectacle lens is equal to or more than 1.00%, and a mean reflectance R.sub.UV(eye) in a wavelength range of 280 to 380 nm measured on the eyeball-side surface of the spectacle lens is less than or equal to 15.00%.

Nucleation layer for thin film metal layer formation

A conductive film is formed on a flexible polymer support by applying a seed layer comprising gallium oxide, indium oxide, magnesium oxide, zinc oxide or mixture (including mixed oxides) thereof to the flexible polymer support, and applying an extensible, visible light-transmissive metal layer over the seed layer. The seed layer oxide desirably promotes deposition of the subsequently-applied metal layer in a more uniform or more dense fashion, or promotes earlier formation (viz., at a thinner applied thickness) of a continuous metal layer. The resulting films have high visible light transmittance and low electrical resistance.

Nucleation layer for thin film metal layer formation

A conductive film is formed on a flexible polymer support by applying a seed layer comprising gallium oxide, indium oxide, magnesium oxide, zinc oxide or mixture (including mixed oxides) thereof to the flexible polymer support, and applying an extensible, visible light-transmissive metal layer over the seed layer. The seed layer oxide desirably promotes deposition of the subsequently-applied metal layer in a more uniform or more dense fashion, or promotes earlier formation (viz., at a thinner applied thickness) of a continuous metal layer. The resulting films have high visible light transmittance and low electrical resistance.

Antireflective lens for infrared rays having four layers of specified refractive indices

Disclosed are an antireflective lens for infrared rays that eliminates wavelengths in an infrared region to thus improve an antireflective effect and a method of manufacturing the same. The antireflective lens for infrared rays may be an antireflective lens used in an infrared band. The antireflective lens includes a lens base part including a base refractive material having a refractive index of about 3.0 or greater and an antireflective coating part formed on a front surface of the lens base part.