A light flux controlling member includes a lens body and a cut part. The lens body and the cut part are an integrally molded article composed of a cured product of a liquid resin composition. The cut part extends outward from the entire circumference of the outer peripheral part of the lens body in plan view of the light flux controlling member. The cut part includes the outward-facing end surface bearing a blade mark or a melting mark. In the front-rear direction of the light flux controlling member, the distance between the bottom surfaces of the cut part and the lens body is 20 μm or more.

A light guide structure for a backlight module is provided. A light source of the backlight module emits a light beam. The light beam is guided by the light guide structure. The light guide structure includes a plate body and a light-shielding layer. The plate body includes a light-transmissible plate, a light-guiding plate and a reflecting plate. The light-guiding plate has a lateral surface. The light-transmissible plate has a light-transmissible plate lateral surface. The reflecting plate has a reflecting plate lateral surface. The lateral surface of the light-guiding plate, the light-transmissible plate lateral surface and the reflecting plate lateral surface are collaboratively formed as a plate body lateral surface. The plate body lateral surface is covered by the light-shielding layer. The light beam from the light source is blocked by the light-shielding layer.

A fixture used in the manufacture of an eyepiece, to cut the eyepiece to a particular shape, and a method of using the fixture to cut the eyepiece to have a desired shape. Embodiments are directed to a configurable fixture to align, hold, and protect a plastic sheet (e.g., a wafer) while a laser cutting apparatus is cutting one or more eyepieces out of the wafer. During the cutting, the fixture protects the eyepieces from reflected laser light by providing voids around the laser cutting lines, and by supporting each eyepiece near its perimeter. The fixture can be quickly rearranged for different eyepieces, different eyepiece shapes, and/or different plastic sheet sizes.

An optical assembly (200) including an encapsulated multilayer optical film (250). Methods of making and using such optical assemblies also are disclosed.

A light-guide optical element (LOE) and methods of manufacture are disclosed. The LOE includes a transparent substrate having a first refractive index, the substrate having a pair of parallel external surfaces along a length thereof, and a plurality of mutually parallel at least partially reflective internal surfaces, the mutually parallel internal surfaces being angled obliquely relative to the pair of external surfaces; and a transparent polymer resin encapsulating at least a part of the substrate to form an encapsulated structure, the polymer resin having a second refractive index that is matched to the first refractive index; wherein the encapsulated structure comprises a pair of parallel external surfaces of optical quality formed from the resin.

A diamond turning station having a drum able to be rotated about an axis C and a diamond tip. A piece to be machined P is installed on the drum as follows: the piece to be machined P is offset by a distance D from the rotation axis of the drum; the piece to be machined P is placed so that there is a mean angle Theta between the axis C and a cutting profile corresponding to the active surfaces, the angle Theta being as follows: Theta=arccos (D/Ry), where Ry is a radius of curvature required in the long direction of the microstructures. Next, the diamond tip is moved along the cutting profile of the microstructures, while actuating the rotation of the drum, so as to machine all the microstructures on the surface of the piece to be machined P.

A lens element intended to be worn in front of an eye of a wearer having a refraction area having a refractive power based on a prescription for said eye of the wearer, an a plurality of at least two optical elements having an optical function of not focusing an image on the retina of the eye of the wearer, wherein the refraction area comprises a plurality of respectively independent island-shaped areas, the refraction area is formed as the area other than the optical elements and each refraction island shape area is within one optical element.

The present disclosure relates to an ophthalmic lens treatment method, comprising heating, in a humidified environment, a semi-finished lens (20) to a predetermined temperature, the semi-finished lens (20) containing a base lens (10) and a film structure (2) of a predetermined thickness, and surfacing the semi-finished lens (20) to a predetermined power, wherein the predetermin ed temperature is a temperature above a softening temperature of the film structure (2), the humidity of the humidified environment is between 30% and 99% and the predetermined thickness of the film structure (2) is between 200 .Math.m and 800 pm.

A method implemented by computer for processing an unfinished optical lens member for manufacturing an optical lens, the unfinished optical lens member having an unfinished surface and an aspherical finished surface having a first reference system with a first reference point, and the optical lens to be manufactured including first and second surfaces, the first surface including a second reference system with a second reference point and included in the aspherical finished surface of the lens member, the method including: providing an unfinished optical lens member data; providing an optical function; providing a reference point position; providing an optical lens parameter; determining a reference system; determining a first surface dataset; and determining a second surface dataset.

A combined corrective lens engaged with a lens shield and method therefor is provided. The lens shield is formed of a first lens portion which is subsequently engaged with an independently formed projecting portion. One surface of the projecting portion is configured for grinding to a prescription lens. The combined lens can include light filtering medium or layers only in the projecting portion or in both the projecting portion and first lens portion since the components are formed in advance and joined.