Provided is a method of preparing a transparent, non-elastomeric optical article including (1) combining to form a reaction mixture free of urethanation catalysts (a) a polyisocyanate component; and (b) an active hydrogen component of polyol and/or polythiol, and at least one compound containing both amine and hydroxyl functional groups; (2) allowing the polyisocyanate component to react with amine functional groups in the active hydrogen component to form an intermediate product including a polyurea prepolymer having hydroxyl functional groups in admixture with the polyol and/or polythiol and, optionally, the compound containing both amine and hydroxyl functional groups; (3) mixing the intermediate product with additional polyisocyanates and optionally a urethanation catalyst to form a second reaction mixture; (4) introducing the second reaction mixture to a mold to form a thermoset polymerizate; and (5) releasing the polymerizate from the mold. Optical films and articles prepared by the method also are provided.

Disclosed herein is an injection molding method for making optical thermoplastic lenses using 3Dprinted functional wafers. The method employs a variable injection molding cavity temperature that is heated to at least wafer Tg10 C.

Resin compositions, layers, and interlayers comprising two or more thermoplastic polymers and at least one RI balancing agent for adjusting the refractive index of at least one of the resins or layers is provided. Such compositions, layers, and interlayers exhibit enhanced optical properties while retaining other properties, such as impact resistance and acoustic performance.

A method for manufacturing a lamp for vehicles is disclosed in which a housing, a light conductor, and a clear lens are produced as one unit out of plastic in a 3-component injection procedure. The refractive index of the plastic of the clear lens is selected to be different from the refractive index of the plastic of the light conductor. The boundary between clear lens and the light conductor adjacent to it is formed with a structure. Because of the difference of the two refractive indexes and the structure at the given light admission on at least one light incoupling area at one end of the light conductor, light outcoupling areas are defined along the extent of the light conductor and out of the lamp. The invention furthermore relates to a side-view mirror arrangement of a vehicle having a lamp manufactured in this manner, preferably in the form of a blinker.

In a plate-type optical member for a multi-panel display device in which a plurality of individual display devices are joined and which includes junction area in which non-active areas of the individual display devices are arranged, the plate-type optical member includes plural optical fibers that have input ends opened to the lower part of the plate-type optical member and output ends opened to the upper part of the plate-type optical member and a resin support that supports the optical fibers. It is possible to guarantee image continuity in panel junction areas by disposing the plate-type optical member on the front surface of the multi-panel display device.

Resin compositions, layers, and interlayers comprising two or more thermoplastic polymers and at least one RI balancing agent for adjusting the refractive index of at least one of the resins or layers is provided. Such compositions, layers, and interlayers exhibit enhanced optical properties while retaining other properties, such as impact resistance and acoustic performance.

In a multi-panel display device in which plural individual display devices are joined, it is possible to guarantee image continuity in panel junction areas of the multi-panel display device by disposing a frame-type optical member, which includes a frame section having plural optical fibers and a central light-transmitting area, on the front surface of the multi-panel display device and optimizing structures of an inner inclined surface of the frame section of the frame-type optical member and optical fibers included in the frame section.

The present invention provides an optical fiber and method of making the same. The optical fiber includes a body for transmitting light. The body has an anisotropic refractive index wherein the anisotropic refractive index offsets changes in the refractive index of the fiber caused by bending the fiber. The fiber body may further include a core and cladding.

The invention relates to a method for manufacturing an ophthalmic lens having at least one optical function, comprising the step of providing a starting optical system of the lens, having a basic optical function and the step of additively manufacturing an additional optical element of the lens, by deposition of multiple predetermined bulking components made of at least one material having a predetermined refractive index, directly onto the front surface and/or the rear surface of the starting optical system; wherein the additive manufacturing step comprises the step of determining a manufacturing guideline for the additional optical element on the basis of the characteristics of said at least one optical function to be provided to the lens, the characteristics of said at least one basic optical function, the geometric characteristics of the starting optical system, and the predetermined refractive index of the material.

A mold for manufacturing a thermoset optical article having a high refractive index, a method for manufacturing the mold, and a method for manufacturing the article. The mold (1) is configured for manufacturing a thermoset optical article capable of being a poly thiourethane-based lens substrate having a refractive index of from 1.54 to 1.74, by casting a thermosetting material (6) into a molding cavity (5) of the mold, the mold comprising a mineral first mold part (2) having a mineral first inner surface (2a) modified by an organosilane mold-release agent. The modified first inner surface (4) comprises a product of a dehydration-condensation reaction of a hydrolysate of an aqueous alcohol solution of the organosilane mold-release agent applied to the mineral first inner surface (2a) and cured thereon, and the modified first inner surface (4) is devoid of a coating layer of particles and is configured to be directly in contact with the cast thermosetting material.