Patent classifications
B29D11/00884
METHOD FOR MANUFACTURING SPECTACLE LENS
Provided is a method for manufacturing a spectacle lens, wherein: the spectacle lens includes a lens substrate having microprotrusions on at least one surface, and a coating film formed on the surface of the lens substrate that has the microprotrusions; and the method includes forming the coating film by applying an application liquid, through spin-coating, to the surface of the lens substrate that has the microprotrusions.
COATING METHOD
A coating method includes a) supplying a coating liquid including a resin to a lens surface of a lens body made of a resin, the lens surface being on one side of the lens body, and b) forming a film of the coating liquid on the lens surface by rotating the lens body around a predetermined rotational axis. The film of the coating liquid is a buffer layer provided between the lens body and an anti-reflection layer. When the lens surface is a convex surface, the viscosity of the coating liquid is about 8 mPa.Math.s or more and about 26 mPa.Math.s or less and a number of revolutions of the lens body in the step b) is about 4500 rpm or more and about 30000 rpm or less.
Spin coater for applying multiple coatings to an optical substrate
A spin coater that can be used to apply multiple coating compositions over an optical substrate, is described. The spin coater includes, a coater bowl configured to collect excess coating material expelled from an optical substrate being coated, a rotatable chuck configured to receive and rotate the optical substrate in the bowl during coating, a plurality of coating reservoirs, each containing a coating material, and an indexable coating reservoir platform containing the plurality of reservoirs and configured to index a selected reservoir into a dispensing position above the coater bowl. The spin coater can include or have associated therewith at least one curing station, in which each curing station is independently configured to cure at least partially at least one applied coating material. Each curing station can include at least one of a thermal curing station, a UV curing station, and/or an IR curing station.
LENS MANUFACTURING METHOD
A lens manufacturing method includes dropping a coating liquid including a resin onto a lens surface of a lens body made of a resin, the lens surface being on one side of the lens body and the lens body being retained in a stationary state, and maintaining the stationary state until the coating liquid reaches the outer edge of the lens surface, and removing an excess of the coating liquid from the lens surface by rotating the lens body around a predetermined rotational axis and forming a film of the coating liquid on the lens surface, the film becoming a covering layer. Preferably, in the dropping of the coating liquid, the stationary state is maintained until the coating liquid reaches the whole of the outer edge of the lens surface.
Method for Imparting an Optical Element with a Light Influencing Property in a Gradient Pattern
A method for imparting an optical element with at least one light influencing property in a gradient pattern. The method includes (a) providing an optical substrate having first and second surfaces; (b) depositing a first composition over the first surface of the optical substrate so as to provide a first treated surface region and an untreated surface region, the first composition including a material which provides a light influencing property; (c) depositing a second composition over the optical substrate of (b) to provide a second treated surface region over the untreated surface region and over a portion of the first treated surface region to form a first overlap region; and (d) spinning the optical substrate of (c) thereby providing the optical element having a light influencing property in a gradient pattern.
GAP FILL OF IMPRINTED STRUCTURE WITH SPIN COATED HIGH REFRACTIVE INDEX MATERIAL FOR OPTICAL COMPONENTS
Embodiments of the present disclosure generally relate to a method for forming an optical component, for example, for a virtual reality or augmented reality display device. In one embodiment, the method includes forming a first layer on a substrate, and the first layer has a first refractive index. The method further includes pressing a stamp having a pattern onto the first layer, and the pattern of the stamp is transferred to the first layer to form a patterned first layer. The method further includes forming a second layer on the patterned first layer by spin coating, and the second layer has a second refractive index greater than the first refractive index. The second layer having the high refractive index is formed by spin coating, leading to improved nanoparticle uniformity in the second layer.
SPIN COATING SYSTEM AND METHOD
Provided herein is an improved spin coating system and a method of using the spin coating machine to produce an optical article. The system includes at least one dispensing arm assembly. The holder assembly is moveable along a substantially vertical axis. The dispensing arm assembly has a base and at least one arm having a first end and a second end and is moveable along a horizontal axis. The at least one arm is operably coupled to the base at the first end and operably coupled to at least one applicator at the second end, and the applicator is capable of being positioned along the substantially vertical axis. The method includes depositing a primer layer onto a lens using the dispensing arm assembly, followed by a hard coating, and drying and cooling the substrate using a drying/cooling station that is positioned substantially along the substantially vertical axis.
Fresnel lens with textured draft surfaces
A method for preparing a die for molding of a Fresnel lens includes obtaining a first die block that defines at least one or more portions of a Fresnel lens. The one or more portions defined in the first die block correspond to a plurality of slope facets and a plurality of draft facets. The method also includes adding textures to one or more portions of the first die block that correspond to at least a portion of the plurality of draft facets. A method of making a Fresnel lens includes obtaining the first die block, obtaining a second die block, and coupling the first and the second die blocks. The method also includes providing a molding material into a space defined between the first and the second die blocks, curing the molding material, and removing the Fresnel lens from the first and/or the second die block.
Optical element, manufacturing method thereof, and optical apparatus
An optical element is provided that includes a base having a smooth surface and a rough surface on one surface thereof, an antireflection film having an irregularity structure on a surface of the antireflection film over the smooth surface of the base, and a light shielding film over the rough surface, wherein the irregularity structure of the antireflection film has an average height of 50 nm or less in an overlapping portion, in which an edge portion of the antireflection film and an edge portion of the light shielding film overlap each other over the smooth surface.
Functional laminated spectacle lens having functional layer formed by spin-coating
A functional laminated spectacle lens is provided which includes, as constituent layers, an outer lens, a polarizing film, and an inner lens. A functional layer is formed on at least one of the constituent layers. Another constituent layer is laminated on and joined to the functional layer through an adhesive layer. The functional layer is formed using a spin coating material which is obtained by incorporating a functional pigment into an acrylic urethane resin containing, as a main component, an acrylic polyol containing 4-hydroxybutyl acrylate, and, as a curable component, a polyisocyanate. Once the spin coating material cures, the required functional pigment is reliably maintained in the functional layer by a three-dimensional network structure, the migration of the functional pigment into an adjacent resin monomer-containing layer is prevented, and the functional pigment is made less susceptible to the effect of an organic peroxide contained in the resin.