Abstract: A method for making an apertured polymeric film web is disclosed herein. The polymeric film web may be utilized as a topsheet in an absorbent article and can provide fluid handling and softness benefits.

Abstract: Systems and methods for smoothing a lens are disclosed herein. A monomer used to make or augment the lens according to an additive method is deposited on the lens surface to be smoothed. A film or membrane with certain elastic properties is pressed against the layered (stepped) surface, with the monomer in between the lens and the membrane. The pressure of the membrane spreads the monomer over the surface of the lens, filling the spaces between the layered (stepped) surface and the membrane. A curing agent is applied to transition the monomer into a polymer coating matching the curve of the membrane. The membrane is removed, leaving a clean, smooth lens surface.

Abstract: The present invention relates to a light guide plate (LGP) capable of bidirectional focusing via a bidirectional micro-transmissive layer, a fabrication method of the LGP, an extrusion equipment, a backlight module and a display device. The LGP comprises a LGP substrate, the LGP substrate comprises at least one incident surface for receiving a light beam and one outgoing surface connected to the incident surface, a bidirectional micro-transmissive layer is provided in the LGP substrate, the bidirectional micro-transmissive layer comprises a plurality of micro-transmissive points having biconvex surfaces.

Abstract: An apparatus and method for manufacturing intraocular lenses (IOLs) is disclosed. Two mold components (an outer mold component and an inner mold component) of different composition may be employed. The outer mold may be composed of a metal or other refractory material and may serve as the outer die into which a lens forming material can be introduced. The inner mold component may be composed of a softer or more compliant material and may be deployed within the outer mold component. The IOL may be formed by casting the lens-forming material into a shape defined by the space between the two mold components. In certain embodiments, the present disclosure may reduce or eliminate flash in IOLs, improve alignment of their optical surfaces, and/or reduce or eliminate the need for bonded regions.

Abstract: A liquid crystal display device that includes an array substrate, an opposite substrate and a liquid crystal display layer is described. The array substrate includes a pixel electrode and a lower alignment layer. The pixel electrode has a plurality of slit portions extending in different directions. The lower alignment layer includes a reactive mesogen (RM) diamine is formed on the pixel electrode to induce an alignment direction of the liquid crystal molecules. An upper alignment layer is formed on a common electrode of the opposite substrate. The RM is cured at surfaces of the lower and upper alignment layers in response to ultraviolet (UV) light, so that liquid crystal molecules have a pretilt angle. Therefore, the aperture ratio and the response time may be improved, and afterimages may be decreased, so that display quality may be improved.

Abstract: The invention relates to a method and a device for producing at least one fiber Bragg grating in a waveguide, wherein the waveguide has at least one core having a first refractive index and the fiber Bragg grating contains a plurality of spatial regions which each occupy a partial volume of the core and have a second refractive index, wherein the spatial regions are each produced by the action of laser radiation on a partial volume of the core, wherein the laser radiation contains a plurality of pulse trains each containing a plurality of individual pulses, wherein the time interval between successive individual pulses is smaller than the time interval between successive pulse trains and the time interval between successive individual pulses is chosen between 10 ns and 100 ps or the pulse train has a duration of 50 fs to 50 ps.

Abstract: Disclosed are an optical member, a display device including the optical member and a method of fabricating the optical member. The display device includes a light source; a wavelength conversion member into which light generated from the light source is incident; and a display panel into which light is incident from the wavelength conversion member. The wavelength conversion member includes a receiving part having a pipe shape; a matrix in the receiving part; and a plurality of wavelength conversion particles disposed in the matrix to convert a wavelength of the light generated from the light source.

Abstract: An optical waveguide having a plurality of optical paths is formed on a substrate. A reflection mechanism is arranged above the optical waveguide. The reflection mechanism includes mirror components, each of which has an inclined reflective surface, and a mask having a plurality of openings. Laser is irradiated to the mirror components and optical path conversion inclined surfaces are formed in the plurality of optical paths at the same time by the laser reflected on the mirror components.

Abstract: The invention is directed to a reusable mold for making a contact lens and the reusable mold has at least one of the mold halves is made from an oxide glass having a Knoop Hardness less than HK 350. The invention is also directed to a method for making an optical part by single point diamond turning an oxide glass having a Knoop Hardness HK less than 350.

Abstract: An injection molding method includes a supply step of simultaneously supplying molten resins to a cavity portion from two gate portions and an associating step of associating the molten resins supplied from the two gate portions in a central part of the cavity portion. The supply step supplies the molten resins to the cavity portion from the two gate portions which substantially face each other around the cavity portion. The associating step includes at least one of a first step in the supply step of simultaneously starting the supply of the molten resins to the cavity portion from the two gate portions, and a second step in the supply step of simultaneously starting the injection of the molten resins into the cavity portion from the two gate portions at the same injection rate.

Abstract: Methods of making optical films and optical stacks are described. A method of making an optical stack includes providing a thermoform tool centered on a tool axis and having an external surface rotationally asymmetric about the tool axis; heating an optical film resulting in a softened optical film; conforming the softened optical film to the external surface while stretching the softened film along at least orthogonal first and second directions away from the tool axis resulting in a conformed optical film rotationally asymmetric about an optical axis of the conformed film where the optical axis coincident with the tool axis; cooling the conformed optical film resulting in a symmetric optical film rotationally symmetric about the optical axis; and molding an optical lens on the symmetric optical film resulting in the optical stack.

Abstract: The method of manufacturing of this invention is capable of providing an eyeglass lens free from uneven coloring or peeling of a colored layer having a gradation pattern.

Abstract: Methods for manufacturing an ophthalmic lens with an insert using voxel-based lithography techniques, wherein at least a portion of one surface may be free-formed from a reactive mixture are set forth herein. An ophthalmic lens precursor may be formed on a substrate with an arcuate optical quality surface via a source of actinic radiation controllable to cure a definable portion of a volume of reactive mixture, wherein the control may be on a voxel by voxel basis.

Abstract: A contact lens storage case of limited life and predetermined usage to further the safe and effective use of contact lenses by ensuring patient compliance through both limiting case use over a set period of time and discouraging reuse and topping-off of the disinfecting and storage solution. Generally, the self-destruction consists of the case developing a leak in a pre-determined fashion as a result of the change in properties of a material in a limited area of the case following exposure of the case to the storage solution.

Abstract: The present invention general related to a method and a reusable mold for making a contact lens, comprising a first mold half having a first mold surface in contact with a silicone containing lens forming composition and a second mold half having a second mold surface in contact with the lens forming composition. The first mold half and the second mold half are configured to receive each other such that a cavity is formed between the first mold surface and the second mold surface, wherein the cavity defines the shape of a contact lens to be molded. The lens forming composition is polymerizable and/or crosslinkable by a UV radiation, wherein at least one of the mold halves is made from an oxide glass material having a UV transmission cut-off wavelength no less than 390 nm and a specific gravity higher than 3.5.

Abstract: The present invention general related to a method and a reusable mold for making a contact lens, comprising a first mold half having a first mold surface in contact with a silicone containing lens forming composition and a second mold half having a second mold surface in contact with the lens forming composition. The first mold half and the second mold half are configured to receive each other such that a cavity is formed between the first mold surface and the second mold surface. The cavity defines the shape of a contact lens to be molded. The lens forming composition is polymerizable and/or crosslinkable by actinic radiation. The reusable mold has at least one of the mold halves is made from chalcogenide glasses, Zinc Selenide or Zinc Sulfide.

Abstract: Disclosed in this specification is a process for manufacturing a thermochromic contact lens. The process includes (1) selecting a photoinitiator that absorbs at a first wavelength and at least one thermochromic dye that displays substantial absorption at the first wavelength when the dye is at a first temperature and exhibits at least an 80% reduction in absorbance at the first wavelength at a second temperature, (2) maintaining the reaction mixture at the second temperature and (3) providing cure light that includes the first wavelength.

Abstract: The invention relates to a device for manufacturing an elongated hollow profile element that has at least one pulling wire (13), comprising: two counter-bearings (11, 12), which are arranged on opposite sides of the device and which correspond to the elongated ends of the elongated hollow profile element, wherein one end of the at least one pulling wire (13) is anchored to the distal counter-bearing (11), and a mold (2a, 2b), which forms a sealed elongated cavity (3) that can be filled with a hardening material, wherein the cavity (3) extends between the two counter-bearings (11, 12) and the pulling wire (13) extends in the cavity (3) so as not to touch the cavity wall. The invention further relates to a method for manufacturing an elongated hollow profile element that has at least one pulling wire (13), the elongated hollow profile element, and a bending section for an endoscope.

Abstract: A trenched-substrate based lens manufacturing method includes depositing lens material on a first side of a substrate, wherein the first side of the substrate has a plurality of trenches. The method further includes shaping a plurality of lens elements from the lens material. The method includes shaping the plurality of lens elements, on a respective plurality of surface portions of the first side, by contacting a mold to the first side. Each of the surface portions are adjacent a respective one of the trenches. Additionally, the method includes accommodating an excess portion of the lens material in the trenches. A lens system, manufactured using this method, includes a substrate with a planar surface and a trench embedded in the planar surface. The lens system further includes a lens element molded on the planar surface adjacent to the trench.

Abstract: In a backlight module, a diffusive structure and a prism structure are replaced by a diffusive prism film formed on a substrate and transferred via In-Mold Decoration by Roller (IMR) to a light guide body via injection molding. A reflection film is also transferred to an opposite side of the light guide body via the same way. In such way, optical films may be readily transferred to the light guide body via two-side IMR during the process of injection molding of the light guide body, saving room taken by substrates of the optical components.