Abstract: Disclosed is a process of physical vapor deposition of a material layer on surfaces of a plurality of substrates (11), wherein the plurality of substrates (11) are arranged on a dome (12) which rotates according to a dome rotation axis (300); the material to be deposited is vacuum evaporated thanks to an energy beam from a target (13); the energy beam interacts with a beam impact surface of the target chosen within the list consisting of a part of a main surface (15) and a part of an edge (14) of the target and wherein the material diffuses from the target to the substrates around a main diffusion axis (100) which intersects the dome (12) at an intersection point, I; and the angle ? between the dome rotation axis (300) and the main diffusion axis (100) is chosen within the ranges of +5° to +40° or ?5° to ?40°.

Abstract: The present invention relates to a process of physical vapor deposition of a material layer on surfaces of a plurality of substrates (11), wherein:—the plurality of substrates (11) are arranged on a dome (12) which rotates according to a dome rotation axis (300);—the material to be deposited is vacuum evaporated thanks to an energy beam from a target (13);—the energy beam interacts with a beam impact surface of the target chosen within the list consisting of a part of a main surface (15) and a part of an edge (14) of the target and wherein the material diffuses from the target to the substrates around a main diffusion axis (100) which intersects the dome (12) at an intersection point, I; and—the angle ? between the dome rotation axis (300) and the main diffusion axis (100) is chosen within the ranges of +5° to +40° or ?5° to ?40°.

Abstract: The invention relates to an optical article having antireflection properties, optionally antistatic properties, having a high thermal and abrasion resistance, as well as the method for producing the same. The article of the invention comprises a substrate and, starting from the substrate: a sub-layer comprising a SiO2-based layer, said SiO2-based layer having a thickness greater than or equal to 75 nm et free from Al2O3; and a multilayered antireflection coating comprising a stack consisting in at least one high refractive index layer and at least one low refractive index layer, all the low refractive index layers of which comprising a mixture of SiO2 and Al2O3, and the high refractive index layers of which are not layers that do absorb in the visible region comprising a substoichiometric titanium oxide and reducing the relative visible light transmission factor (Tv) of the optical article by at least 10% as compared to a same article without any of said visible light absorbing layers.

Abstract: The invention relates to an optical article having antireflection properties, optionally antistatic properties, having a high thermal and abrasion resistance, as well as the method for producing the same. The article of the invention comprises a substrate and, starting from the substrate: a sub-layer comprising a SiO2-based layer, said SiO2-based layer having a thickness greater than or equal to 75 nm et free from Al2O3; and a multilayered antireflection coating comprising a stack consisting in at least one high refractive index layer and at least one low refractive index layer, all the low refractive index layers of which comprising a mixture of SiO2 and Al2O3, and the high refractive index layers of which are not layers that do absorb in the visible region comprising a substoichiometric titanium oxide and reducing the relative visible light transmission factor (Tv) of the optical article by at least 10% as compared to a same article without any of said visible light absorbing layers.

Abstract: An antireflection, antistatic transparent coating for an optical article, comprising at least one electrically conductive layer, wherein said electrically conductive layer contains at least one metal and has a thickness lower than or equal to 1 nm. The invention also relates to a an optical article having two main faces, at least one which being coated with the above antireflection, antistatic transparent coating and a process for depositing the above antireflection, antistatic transparent coating onto said optical article.

Abstract: The present invention relates to an optical article having anti-reflection properties and high thermal resistance, comprising a substrate having at least one main face coated with a multi-layer anti-reflection coating comprising a stack of at least one high refractive index layer and at least one low refractive index layer, wherein the ratio: R T = sum ? ? of ? ? the ? ? physical ? ? thicknesses ? ? of ? ? the low ? ? refractive ? ? index ? ? layers ? ? of ? ? the ? anti ? - ? reflection ? ? coating sum ? ? of ? ? the ? ? physical ? ? thicknesses ? ? of ? ? the high ? ? refractive ? ? index ? ? layers ? ? of ? ? the ? anti ? - ? reflection ? ? coating is higher than 2.1.

Abstract: The present invention relates to an optical article having anti-reflection properties and high thermal resistance, comprising a substrate having at least one main face coated with a multi-layer anti-reflection coating comprising a stack of at least one high refractive index layer and at least one low refractive index layer, wherein the ratio: R T = sum ? ? of ? ? the ? ? physical ? ? thicknesses ? ? of ? ? the low ? ? refractive ? ? index ? ? layers ? ? of ? ? the ? anti ? - ? reflection ? ? coating sum ? ? of ? ? the ? ? physical ? ? thicknesses ? ? of ? ? the high ? ? refractive ? ? index ? ? layers ? ? of ? ? the ? anti ? - ? reflection ? ? coating is higher than 2.1.

Abstract: An antireflection, antistatic transparent coating for an optical article, comprising at least one electrically conductive layer, wherein said electrically conductive layer contains at least one metal and has a thickness lower than or equal to 1 nm. The invention also relates to a an optical article having two main faces, at least one which being coated with the above antireflection, antistatic transparent coating and a process for depositing the above antireflection, antistatic transparent coating onto said optical article.

Abstract: A distribution mask including at least two separate blanking panels (22), one of which is mounted mobile. The two blanking panels (22) are substantially coplanar, and, controlled by a common control unit (23), both mounted continuously mobile between two extreme positions, namely, a close position, and for which the space (E) between them is minimal, and a spaced position, for which the space (E) is on the contrary at its maximum. The invention is particularly applicable to antiglare treatment of ophthalmic lenses.