An electrooptical device includes a substrate, a mirror that is made up of a plurality of films which are arranged so as to be separated from the substrate on one plane of the substrate, and a supporting portion that is arranged between the substrate and the mirror, and has a portion which is connected to a portion of the mirror so as to support the mirror, in which the mirror includes a third mirror film which is a reflective metal film that is arranged on a side of the mirror which is opposite to the substrate, a second mirror film which is a high melting point metal film that is arranged between the reflective metal film and the substrate, and a first mirror film which is an antioxidative film that is arranged between the high melting point metal film and the substrate.

A reflector includes a low refractive index layer and a high refractive index layer. The low refractive index layer has a first average refractive index and has a laminated structure in which an AlN layer and a GaN layer are alternately laminated. The high refractive index layer has a second average refractive index higher than the first average refractive index and includes an InGaN layer.

An optical coating structure applied to the surface of an object having scattering structures introduced to the basal, upper or middle layers of a multilayer reflector to cause a particular (calculated) degree of scattering, or to the surface of a black/colour pigmented object. The scattering structures are mainly sub-micron in size, and arranged in a pseudo-random or non-periodic manner. Consequently they serve only to broaden the angular range of the light reflected at the surface normal from a multilayer reflector, or to provide (actual and/or perceived) reduced reflectivity of a surface by deflecting incident light through the surface rather than away from it or by scattering otherwise beam-like (narrow-angle) reflections from a surface into a broad-angle reflection. The scattering structures can include profile elements, which are in the form of elongate bars having convexly curved sides or hemispherical rods, that are introduced to a basal layer of a multilayer reflector.

This optical device comprises an ophthalmic lens and a light source emitting in the deep red and near infrared region. The ophthalmic lens has front and rear faces coated with interferential coatings. The mean reflectance of the rear interferential coating is lower than or equal to 2.5% for wavelengths ranging from 700 nm to a predetermined maximum wavelength lower than or equal to 2500 nm, at an angle of incidence lower than or equal to 45°. At an angle of incidence lower than or equal to 45°, for wavelengths ranging from 700 nm to the predetermined maximum wavelength, the mean reflectance of the front interferential coating is either lower than or equal to 2.5% if the source is directed towards the front face of the ophthalmic lens, or higher than or equal to 25% if the source is directed towards the rear face of the ophthalmic lens.

An optical element (1) for reflecting EUV radiation (4) includes: a substrate (2); a coating (3) applied to the substrate (2), which coating reflects the EUV radiation (4); a top layer (5) protecting the reflective coating (3), which top layer is applied to the reflective coating (3); and an intermediate layer (6) having at least one reactive material (7) which, together with an activating gas (O2) penetrating through a gap (5a) in the top layer 95), forms at least one reaction product (8) sealing the gap (5a). A related EUV lithography system has at least one such reflective optical element (1), and a related method for sealing a gap (5a) in the top layer (5) of such an optical element (1) are also disclosed.

An ultra lightweight mirror blank having a ribbed back side and a smooth front side. The mirror blank is comprised of a core made of fiber insulation strips, arranged to create a strong ribbed surface on the back of the blank. The core is sandwiched in between two or more plates of fused glass.

The invention relates to an optical lens comprising a substrate having a front main face and a rear main face, at least one main face of which being successively coated with a first high refractive index sheet which does not comprise any Ta.sub.2O.sub.5 layer, a second low refractive index sheet a third high refractive index sheet, a monolayer sub-layer having a thickness higher than or equal to 100 nm, and a multilayer interferential coating comprising a stack of at least one high refractive index layer and at least one low refractive index layer. A mean reflection factor selected from Ruv for UV light, Rv for visible light and RsNIR for near infrared light is higher than or equal to 10-15% on at least one main face.

A method for manufacturing substrate-transferred optical coatings, comprising: a) providing a first optical coating on a first host substrate as a base coating structure; b) providing a second optical coating on a second host substrate; c) bonding the optical coating of the base coating structure to the second optical coating, thereby obtaining one combined coating; d) detaching one of the first and the second host substrates from the combined coating; determining if the combined coating fulfills a predetermined condition; e) if the result of the determining step is negative, taking the combined coating together with the remaining host substrate as the base coating structure to be processed next and continuing with step b); f) if the result of the determining step is positive, providing an optical substrate and bonding the optical substrate to the combined coating; g) removing the other one of the first and the second host substrate.

A method for manufacturing hybrid optical coatings and hybrid mirror assemblies, including: a) providing a first optical coating having layers of alternating high and low refractive indices of crystalline materials on a first host substrate via an epitaxial growth technique; b) providing a second optical coating having layers of alternating high and low refractive indices of dielectric materials on a second host substrate via a physical vapor deposition (PVD) technique; c) directly bonding the first optical coating to the second optical coating; and d) removing the first host substrate.

A composite pane for a head-up display, includes a first pane having a first surface and a second surface, a second pane having a first surface and a second surface, and a thermoplastic intermediate layer, which is arranged between the second surface of the first pane and the first surface (III) of the second pane, an HUD region, and a first coating for reflecting p-polarized radiation and has exactly one electrically conductive layer based on silver, wherein a second coating for reducing the total transmitted thermal radiation is provided.