B29D11/0073

Optical structure and method of fabricating the same

An optical structure is provided. The optical structure includes an optical element and a plurality of protrusions. The optical element has a planarized top surface. The plurality of protrusions are disposed on the planarized top surface, wherein each of the plurality of protrusions independently has a size in the subwavelength dimensions.

LENTICULAR OPTICAL COMPOSITE FILM, PREPARATION METHOD THEREFOR, AND 3D DISPLAY
20230019555 · 2023-01-19 ·

A lenticular optical composite film, a preparation method therefor, and a 3D display are provided. The lenticular optical composite film comprises: a first polarizer; and a lenticular grating, bonded with the first polarizer, including a first lenticular array and a second lenticular array, wherein surfaces, away from each other, of the first lenticular array and the second lenticular array are planes, and surfaces, facing each other, of the first lenticular array and the second lenticular array are concave-convex complementary, and the first polarizer is attached to the lenticular grating. The lenticular optical composite film is easy to clean and laminate, and has a good optical effect.

SILICONE OPTICS

Silicone-containing light fixture optics. A method for manufacturing an optical component may include mixing two precursors of silicone, opening a first gate of an optic forming device, moving the silicone mixture from the extrusion machine into the optic forming device, cooling the silicone mixture as it enters the optic forming device, filling a mold within the optic forming device with the silicone mixture, closing the first gate, and heating the silicone mixture in the mold to at least partially cure the silicone. Alternatively, a method for manufacturing an optical component may include depositing a layer of heat cured silicone optical material to an optical structure, arranging one or more at least partially cured silicone optics on the layer of heat cured silicone optical material, and heating the heat cured silicone optical material to permanently adhere the one or more at least partially cured silicone optics to the optical structure.

RESIN FILM, METHOD FOR PRODUCING RESIN FILM, AND DISPLAY APPARATUS
20230017197 · 2023-01-19 ·

Resin films and the like capable of improving viewing angle characteristics and antireflection characteristics, for example, when the resin film is applied to a display are provided. The resin film includes a low-refractive-index layer 17 and an anisotropic diffusion layer 16. The low-refractive-index layer 17 has a refractive index of 1.40 or less. The anisotropic diffusion layer 16 anisotropically diffuses light. The anisotropic diffusion layer 16 contains anisotropic particles 162 and a resin portion 161. The anisotropic particles 162 have an anisotropic shape and a longitudinal direction aligned along one direction. The resin portion 161 diffuses the anisotropic particles 162 and is formed of a resin. A reflectivity of the resin film excluding a specular reflection light component is 1.0% or less.

Method for injection molding weld line free minus power lens elements

A method for injection molding of a weld line free minus power lens element comprises injecting a melt of thermoplastic material at a temperature higher than a glass transition temperature (Tg) of the thermoplastic material in an initial molding cavity delimited by two facing mold inserts, wherein the melt of thermoplastic material comprises at least one UV absorber. During the injecting, the two facing mold inserts are moved toward one another to define a final molding cavity whose volume is less than that of the initial molding cavity. After cooling and disassembling of the two facing mold inserts, the weld line free minus power lens element is recovered. One of the two facing mold inserts comprises a flat surface facing the initial molding cavity, thereby to form a flat surface on one side of the weld line free minus power lens element. The other of the two facing mold inserts comprises a convex surface facing the initial molding cavity, thereby to form a concave surface on an opposite side of the weld line free minus power lens element.

Method for mounting functional elements in a lens

A method for mounting functional elements in a lens includes mounting the functional elements on a foil, applying a closed contour alignment surface of an alignment tool having a central opening surrounded by the closed contour on the foil portion opposite to the mounted function elements, applying underpressure on the central opening to maintain the foil portion with the mounted functional elements on the alignment tool, cutting a flap including the foil portion and supporting the functional elements out of the foil, positioning and aligning the flap through actuator, fixing the position of the flap against the adjacent foil surface, embedding the foil with the mounted functional elements in a predetermined distance to the front surface of a mould, and casting and curing the lens with the embedded foil.

Single packet reflective polarizer with thickness profile tailored for low color at oblique angles

Multilayer optical film reflective polarizers previously considered to have excessive off-axis color can provide adequate performance in an LC display in an “on-glass” configuration, laminated to a back absorbing polarizer of the display, without any light diffusing layer or air gap in such laminate. The reflective polarizer is a tentered-one-packet (TOP) multilayer film, having only one packet of microlayers, and oriented using a standard tenter such that birefringent microlayers in the film are biaxially birefringent. The thickness profile of optical repeat units (ORUs) in the microlayer packet is tailored to avoid excessive perceived color at normal and oblique angles. Color at high oblique angles in the white state of the display is reduced by positioning thicker ORUs closer to the absorbing polarizer, and by ensuring that, with regard to a boxcar average of the ORU thickness profile, the average slope from an ORU(600) to an ORU(645) does not exceed 1.8 times the average slope from an ORU(450) to the ORU(600).

Phase difference compensation element, liquid crystal display device, and projection image display device
11550091 · 2023-01-10 · ·

A phase difference compensation element, including: a transparent substrate; a first optical anisotropic layer that includes an inorganic material, and has a C-plate retardance; and a second optical anisotropic layer that includes an inorganic material, and includes an oblique angle vapor deposition film that does not have an O-plate retardance, wherein the phase difference compensation element including the first optical anisotropic layer and the second optical anisotropic layer in combination has a quasi-O-plate retardance.

Laminate structure with embedded cavities and related method of manufacture
11692685 · 2023-07-04 · ·

An integrated laminate structure adapted for application in the context of solar technology, wafer technology, cooling channels, greenhouse illumination, window illumination, street lighting, traffic lighting, traffic reflectors or security films, includes a first carrier element such as a piece of plastic or glass, optionally having optically substantially transparent material enabling light transmission therethrough, a second carrier element provided with at least one surface relief pattern including a number of surface relief forms and having at least one predetermined optical function relative to incident light, the second carrier element optionally including optically substantially transparent material enabling light transmission therethrough, the first and second carrier elements being laminated together such that the at least one surface relief pattern has been embedded within the established laminate structure and a number of related cavities have been formed at the interface of the first and second carrier elements. An applicable method of manufacture is presented.

Optical body, film adhesive body, and method for manufacturing optical body
11693156 · 2023-07-04 · ·

There is provided a novel, improved optical body, the micro concave-convex structure of which can be protected without the use of a protective film, a film adhesive body, and a method for manufacturing an optical body, the optical body including: an optical film, on one surface of which is formed a first micro concave-convex structure in which an average cycle of concavities and convexities is less than or equal to a visible light wavelength; and a master film that covers the first micro concave-convex structure. The master film is provided with a second micro concave-convex structure formed on a surface that faces the first micro concave-convex structure, the second micro concave-convex structure is made of a cured curing resin, and has a reverse shape of the first micro concave-convex structure, and the optical film and the master film are separable from each other.