A package of a heat-bent polarizing sheet for producing an injection-molded polarizing lens and an injection-molded polarizing lens that uses said sheet is provided. The heat-bent polarizing sheet is cumulatively packaged by a non-adhesive isolation film so as to withstand moisture and then stored or transported and can be used in injection molding without performing preliminary drying as a pretreatment of injection molding and without substantial protective-film removal work.

A tool (10) for assisting an optician in removing lenses (42) from or inserting lenses into eyeglass frames (44) includes an elongated block of substantially rigid material (12) having a forward working end (14) and a rearward free end (16) opposite the working end, the portion between the free end and the working end functioning as a handle to be grasped by a person's hand. A first recess (24) is formed in the bottom surface (22) of the block along with a first curved surface (26) and a first hook (28). The first curved surface includes a rearward facing pointed edge (27). Similarly, a second recess (36) is formed in the top surface (20) of the block along with a second curved surface (38) and a second hook (40). The hooks (28, 40) are adapted to rest against the edge (46) of the frame (44) as the pointed edge (27) or the second curved surface (38) presses the lens (42) out of or into the frame (44) as the free end (16) of the tool is rotated.

A refractive optical component has a main body with a plurality m of optical layers extending between a front side and a back side, each layer having a thickness, wherein each of the layers extends over a region common to all layers, the common region being greater than the maximum thickness of the respective layer by at least a factor of 10, wherein the thickness of the layers varies over the extent thereof transversely to the principal axis, and wherein the main body has a refractive index curve (n=n(x, y, z)), modulated at least in the direction parallel to the principal axis, with a plurality of maxima and minima, a distance between adjacent maxima and minima ranging between 0.5 μm and 100 μm and a refractive index difference Δn between adjacent maxima and minima ranging between 10.sup.−4 and 0.3.

A photochromic polyurethane laminate wherein the photochromic polyurethane layer of the laminate has been crosslinked with an isocyanate-active prepolymer using a crosslinking agent. The crosslinking agent is formulated to have at least three functional groups that are reactive with functional groups of the polyurethane or of the isocyanate-active prepolymer. A method of making the photochromic polyurethane laminate includes steps of causing the crosslinking.

Provided is a base (1) for a flexible mold that is to be wound in an endless manner, and the base includes: an intermediate sheet (2); and first and second resin sheets (3, 5) bonded to both main surfaces of the intermediate sheet (2) through intermediation of first and second bonding layers (4, 6), respectively. The intermediate sheet (2) includes: first and second spacer sheets (7, 8), which are each made of a resin, and are arranged at one end portion and another end portion in a winding direction, respectively; and a glass sheet (9) arranged between those spacer sheets (7, 8).

A method of making a customized lens includes providing a first substrate having a first surface, the first surface being a non-flat surface; placing an optical film in contact with the first surface; bringing a layer of a first material into contact with the optical film; and curing the layer of the first material to form a lens. The optical film has a lower surface roughness than the first surface.

Disclosed is a method for manufacturing an optical lens including the following successive steps: a step of providing an optical lens attached to a blocking piece; a step of laminating a functional film on a surface of the optical lens; a step of obtaining an assembly constituted by the blocking piece, the optical lens and the functional laminated film; a step of cutting the excess film directly on the assembly, so as to reduce the film shape; and a step of deblocking the optical lens with the film, and the blocking piece.

A camera module and an electronic device having the same, and a method for manufacturing the camera module, wherein the fixed-focus camera module comprises a circuit board; a photosensitive element, which is conductively connected to the circuit board; a molded base, wherein the molded base is integrally molded on the circuit board and the photosensitive element, and the molded base forms a light window, so as to provide a light passage for the photosensitive chip through the light window; and an optical lens, wherein the optical lens is supported on the molded base and corresponds to the light window formed by the molded base, wherein the circuit board comprises a circuit board substrate and at least one electronic component, wherein the at least one electronic component is electrically connected to the circuit board substrate, wherein the circuit board substrate has a blank side, and wherein the blank side of the circuit board substrate is free of the at least one electronic component.

In a method for the manufacture of a transmissive optical system from a blank, material ablation is achieved on the blank with an ablative laser, and the pulse duration of the ablative laser is less than 1 ns, and preferably lies between 3 fs and 100 fs, or between 100 fs and 10 ps.

A three-dimensional printing device including a rigid optically transparent plate, a release film, an adhesive layer, a light source, and a reflection assembly is provided. The rigid optically transparent plate has a first surface and a second surface opposite the first surface, the release film is disposed on a side of the rigid optically transparent plate adjacent to the first surface, and the adhesive layer is arranged between the rigid optically transparent plate and the release film. The light source is disposed on a side of the rigid optically transparent plate adjacent to the second surface, and the reflection assembly includes at least one mirror and is arranged at a position capable of forming a light path from the light source to the rigid optically transparent plate.