Molding optical components with fine (e.g., micron-scale) features from optical adhesive or polymer can be difficult because the optical components often stick to the mold. If the component sticks to the mold, then either the component or the mold may be damaged or destroyed as the component is removed from the mold. This damage can be reduced or avoided altogether by illuminating the interface between the component and the mold with ultraviolet (UV) light before releasing the component from the mold. The UV light reduces the adhesive forces that cause the component and the mold to stick together, making it easier to remove the component from mold without damaging either the mold or the component.

A lens portion, a rib portion formed outside the lens portion, and a protruding portion protruding outward from a part of the rib portion are included, and the thickness of the rib portion is 1.4 times or more the thickness of an aperture end of a lens surface of the lens portion.

An optical element has a substrate body made from transparent plastic and a coating having multiple layers. The coating includes a hard lacquer layer adjoining the substrate. The coating has a diffusivity ensuring the absorption of water molecules passing through the coating in the substrate and the release of water molecules from the substrate through the coating from an air atmosphere on that side of the coating facing away from the substrate with a flow density which, proceeding from the equilibrium state of the quantity of water molecules absorbed in the substrate in an air atmosphere at 23° C. and 50% relative humidity, brings the setting of the equilibrium state of the quantity of water molecules absorbed in the substrate in an air atmosphere at 40° C. and 95% relative humidity within an interval not more than 10 h longer than for setting this equilibrium under corresponding conditions with an identical uncoated substrate.

There are provided a lens, a method of fabricating the lens, and a light scanning unit. The lens includes a lens portion having an effective optical surface, and a gate-side flange portion between the lens portion and a gate-side end of the lens. If the lens is disposed between two polarizers configured to polarize light linearly in perpendicular directions and is illuminated in an optical axis direction, interference fringes are generated on the lens, and peripheral interference fringes of the interference fringes extend continuously from the gate-side end and are longer than the gate-side flange portion.

An optical lens assembly includes a hollow retainer having an inner surface, an object-side opening, and an image-side opening, and an optical lens integrally formed with formation of the retainer and filled a portion of the retainer. The optical lens includes an object-side surface facing toward the object-side opening, and image-side surface facing toward the image-side opening, and a lateral surface extending from the object-side surface to the image-side surface. The retainer and the optical lens are aligned along an optical axis.

A thin ophthalmic lens stabilized through incorporation of flange around all or a portion of a perimeter of the thin lens.

Optical lenses and methods for manufacturing optical lenses are disclosed herein. Lenses having a reduced aperture size are also disclosed herein along with methods for making the same. The optical lenses disclosed herein can be made having improved optical properties. The lenses can be used in optical microscopes, including optical microscopes with a shorter optical path relative to conventional optical microscopes.

A method for making an improved contact lens with the steps of providing a mold with a space between the top surface and a bottom surface, and positioning a mat in the space of the mold, providing a bead of liquid polymer of predetermined size at a predetermined location on the surface of the mat, pressing the bead of liquid polymer into the mat between the top surface and the bottom surface of the mold to form an optical zone framed by a mat peripheral zone, exposing the optical zone and the peripheral zone with U-V radiation to harden the optical zone into a composite improved contact lens, removing the cross-linked improved contact lens from the mold, processing the peripheral zone surrounding the optical zone to have a fenestration surface having holes, the holes being through holes with predetermined diameters selected to pass larger proteins, lipids, metabolites.

A method for manufacturing an ophthalmic lens using an additive manufacturing technology, based on an optical element and initial manufacturing data, the initial manufacturing data including data defining a complementary portion to deposit on the optical element to form the ophthalmic lens from the optical element, includes the steps of: positioning the optical element on a support; determining a positioning error between the position of the optical element and a reference position on the support using a measurement directed to the optical element; determining a deterioration on the optical element; calculating updated manufacturing data taking into account initial manufacturing data and the determined positioning error; and manufacturing the ophthalmic lens using the updated manufacturing data by the additive manufacturing technology by depositing the complementary portion on the optical element to form the ophthalmic lens from the optical element. A manufacturing system for manufacturing an ophthalmic lens is also described.

A method for manufacturing an optical lens by additive manufacturing, includes steps of: depositing a first layer having a first thickness; —depositing a second layer, having a second thickness, onto the first layer, the second layer forming a first asperity with the first layer; depositing a third layer having a third thickness; depositing a fourth layer having a fourth thickness onto the third layer, thereby forming an intermediate optical element, the fourth layer forming a second asperity with the third layer; and smoothing the first asperity and the second asperity on the intermediate optical element, thereby forming the optical lens. The second thickness and the fourth thickness are different. A corresponding intermediate optical element is also described.