Patent classifications
B29D11/0049
Resin product, method of making resin product, interchangeable lens, and optical device
A resin product including an antireflection surface includes a plurality of first concave portions, a plurality of second concave portions, and a component surface. The first concave portions have opening widths equal to or larger than 1 μm and equal to or smaller than 300 μm. The second concave portions are formed on each of the plurality of first concave portions and have opening widths equal to or larger than 10 nm and equal to or smaller than 1 μm. The component surface is configured to surround each of the plurality of first concave portions.
OPHTHALMIC LENSES AND THEIR MANUFACTURE BY IN-MOLD MODIFICATION
Provided is a method for forming an ophthalmic lens as well as a lens formed by such method. The method includes the curing of a reactive monomer mixture within a mold assembly under conditions to permit incorporation of functional features into selective portions of the ophthalmic lens.
METHOD OF MANUFACTURING ACHROMATIC LENS
In a method of manufacturing an achromatic lens according to an embodiment of the present disclosure, the achromatic lens in which a first lens and a second lens are integrally molded is manufactured by using mold processing, so that chromatic aberration correction ability may be improved without using an adhesive or a separate instrument to fix the first lens and the second lens to each other.
METHOD AND SYSTEM FOR MOLDING OF THERMOPLASTIC OPTICAL POLYMERS
Provided herein are methods of molding thermoplastic polymers into optical elements. The optical elements in the form of cylindrical discs, semi-finished lens blanks or finished lenses are compression molded at high temperature typically above thermoplastic polymers softening temperature and under high pressure. The semi-finished lens blanks and finished lenses are molded using front and back glass molds inside a mold assembly which reshapes the cylindrical discs that are either previously molded or cut out from thick slab. Also provided are methods for producing single vision and progressive addition lens prescriptions.
Method and system for molding of thermoplastic optical polymers
Provided herein are methods of molding thermoplastic polymers into optical elements. The optical elements in the form of cylindrical discs, semi-finished lens blanks or finished lenses are compression molded at high temperature typically above thermoplastic polymers softening temperature and under high pressure. The semi-finished lens blanks and finished lenses are molded using front and back glass molds inside a mold assembly which reshapes the cylindrical discs that are either previously molded or cut out from thick slab. Also provided are methods for producing single vision and progressive addition lens prescriptions.
METHOD AND SYSTEM FOR MOLDING OF THERMOPLASTIC OPTICAL POLYMERS
Provided herein are methods of molding thermoplastic polymers into optical elements. The optical elements in the form of cylindrical discs, semi-finished lens blanks or finished lenses are compression molded at high temperature typically above thermoplastic polymers softening temperature and under high pressure. The semi-finished lens blanks and finished lenses are molded using front and back glass molds inside a mold assembly which reshapes the cylindrical discs that are either previously molded or cut out from thick slab. Also provided are methods for producing single vision and progressive addition lens prescriptions.
RESIN PRODUCT, METHOD OF MAKING RESIN PRODUCT, INTERCHANGEABLE LENS, AND OPTICAL DEVICE
A resin product including an antireflection surface includes a plurality of first concave portions, a plurality of second concave portions, and a component surface. The first concave portions have opening widths equal to or larger than 1 m and equal to or smaller than 300 m. The second concave portions are formed on each of the plurality of first concave portions and have opening widths equal to or larger than 10 nm and equal to or smaller than 1 m. The component surface is configured to surround each of the plurality of first concave portions.
HIDDEN LIGHTING FILM LENS FORMATION APPARATUS AND HIDDEN LIGHTING FILM LENS
Proposed is a hidden lighting lens formation apparatus. In a film formation process, a transmissivity-adjustable film having a flange whose rear surface is fixed to a top portion overlapping a lens hidden lighting section, an end portion of a both-end portion rear surface, and a fixation hole is manufactured. In an injection formation process, the film is fixed with a cavity sidewall, a film insertion portion, and a protrusion in a cavity in a mold. A lens and a bezel are formed by injecting resin through injection molding. As a result, the film absorbs film-forming dispersion for high-frequency formation. Additionally, when a lens, together with the film, is formed through insertion injection, a desired pattern can be formed without causing an inconsistent shape of an end portion of the film in the cavity in the mold and pushing the end portion of the film.
Reusable lens molds and methods of use thereof
The present invention general related to a method and a reusable mold for making a contact lens, comprising a first mold half having a first mold surface in contact with a hydrogel contact lens forming composition and a second mold half having a second mold surface in contact with the lens forming composition, wherein the first mold half and the second mold half are configured to receive each other such that a cavity is formed between the first mold surface and the second mold surface, wherein the cavity defines the shape of a contact lens to be molded, wherein the lens forming composition is polymerizable and/or crosslinkable by an actinic radiation, wherein at least one of the mold halves having an absorbing antireflective coating, wherein the reusable mold is a non-plastic mold.
OPTIMIZATION OF PROCESS PARAMETERS FOR LENS WITH MICRO-LENS DESIGN
Injection-compression molding apparatus and methods to form a lens in a mold insert by an injecting a polymer into an internal cavity of the mold insert until a pressure of the internal cavity exceeds a predetermined force value, the first mold side being fixed and the second mold side being moveable and configured to apply a force generating the internal cavity pressure. The method includes controlling a first temperature of the first mold side to be in a range of 4 degrees Fahrenheit to 10 degrees Fahrenheit greater than a second temperature of the second mold side and controlling a coining compression distance of the second mold side to be in a range of 0.008 inches to 0.018 inches.