Abstract: A shape memory polymer (SMP) intraocular lens may have a refractive index above 1.45, a Tg between 10° C. and 60° C., inclusive, de minimis or an absence of glistening, and substantially 100% transmissivity of light in the visible spectrum. The intraocular lens is then rolled at a temperature above Tg of the SMP material. The intraocular device is radially compressed within a die to a diameter of less than or equal to 1.8 mm while maintaining the temperature above Tg. The compressed intraocular lens device may be inserted through an incision less than 2 mm wide in a cornea or sclera or other anatomical structure. The lens can be inserted into the capsular bag, the ciliary sulcus, or other cavity through the incision. The SMP can substantially achieve refractive index values of greater than or equal to 1.45.

Abstract: Disclosed in this specification is a casting cup assembly comprising frontcurve and basecurve molds which of which includes a ring that circumscribes the respective concave and convex mold surface. When the casting cup is assembled, the rings align and minimize de-centering and tilting of the concave and convex mold surfaces which, in turn, reduces edge defects.

Abstract: It is an objective of the present disclosure to prevent or reduce cracks in edge portions of raised portions of a diffractive optical element. A diffractive optical element includes a diffractive surface. The diffractive surface includes a plurality of raised portions. Each of the raised portion has a first surface having a diffraction function, and a second surface extending upright to be connected to the first surface. A tilt angle of the second surface relative to an optical axis varies according to a region in the diffractive surface.

Abstract: Provided is a material suitable for an optical element, which can be applied by inkjet, has an ultraviolet curable characteristic, and yields a cured product excellent in transparency and hardness and having a refractive index of more than 1.5. Specifically, an optical element excellent in transparency and hardness and having a refractive index of more than 1.5 is obtained by preparing a resin composition including at least: (A) 5 to 45 mass % of a vinyl group-containing copolymer obtained by copolymerization of a divinyl aromatic compound; (B) 55 to 94 mass % of a liquid photocurable polyfunctional (meth)acrylate having two or more (meth)acryloyl groups; (C) 0.97 to 20 mass % of a photopolymerization initiator; and (D) 0.03 to 1 mass % of a surfactant, and applying the resin composition onto a support substrate by inkjet, followed by photocuring.

Abstract: An illuminated surgical instrument is disclosed. One embodiment of the illuminated surgical instrument comprises a cannula and an injection-molded light-sleeve adjacent to and encircling at least a portion of the cannula. The surgical instrument can be a vitrectomy probe having a cutting port disposed at a distal end of the cannula. The light-sleeve can terminate near a distal end of the cannula, for example, near the cutting port of the vitrectomy probe. The light-sleeve is optically coupled to a light source. The light-sleeve can be injection-molded during manufacture using the cannula as an insert for the injection molding. The light-sleeve can be oriented for providing illumination in a direction along a longitudinal axis of the instrument.

Abstract: An optical wavefront correction plate incorporates a unique, three-dimensional spatial retardation distribution utilizing the index of refraction change of resin mixture in its cured state. The optical wave plate comprises a pair of transparent plates, containing a layer of a monomers and polymerization initiators, such as resin mixture. This resin mixture exhibits a variable index of refraction as a function of the extent of its curing. Curing of the resin mixture may be made by exposure to light, such as ultraviolet light, and may be varied across and through the surface of the resin mixture to create a particular and unique three-dimensional wavefront retardation profile. The optical wave plate provides improved performance in large area mirrors, lenses, telescopes, microscopes, and ophthalmic diagnostic systems.

Abstract: The present invention provides a polyvinyl alcohol-based film for optical uses, which is excellent in stretching property and is used for producing a polarizing film excellent in polarization performance throughout the visible light wavelength range, particularly in the vicinity of the wavelength of 460 nm. The invention relates to a polyvinyl alcohol-based film for optical uses comprising a polyvinyl alcohol-based resin, wherein the polyvinyl alcohol-based resin is composed of only a polyvinyl alcohol-based resin (A) containing a 1,2-glycol bond at a side chain and the amount of the 1,2-glycol bond at a side chain is from 0.01 to 6% by mol, or a polyvinyl alcohol-based film for optical uses comprising a polyvinyl alcohol-based resin, wherein the polyvinyl alcohol-based resin includes a polyvinyl alcohol-based resin (A) containing a 1,2-glycol bond at a side chain and a polyvinyl alcohol-based resin (B) other than the polyvinyl alcohol-based resin (A) and satisfies the following expression (1): 0.

Abstract: The present invention provides methods for controlling the optical properties of a light transmissive article. The method includes identifying a target window in an Abbe diagram comprising reference polymeric materials. The method further includes selecting a first polymeric material from the reference polymeric materials and compounding the first polymeric material with a stable UV chromophore to provide a first polymer composition. The method further includes transforming the first polymer composition to provide the light transmissive article, wherein the light transmissive article has an Abbe number and a refractive index which falls within the target window. Light transmissive articles prepared using the above methods are also provided.

Abstract: The invention provides an amphiphilic siloxane-containing vinylic monomer which comprises one sole ethylenically unsaturated group and a siloxane-containing group covalently linked to the ethylenically-unsaturated group through a hydrophilic linker. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from an amphiphilic siloxane-containing vinylic monomer of the invention. In addition, the invention provides a method for making silicone hydrogel contact lenses using a water-based lens-forming formulation comprising an amphiphilic siloxane-containing vinylic monomer of the invention and/or an actinically-crosslinkable silicone-containing prepolymer of the invention.

Abstract: An optical scanning apparatus includes first and second light source units including respective light sources; a rotating polygon mirror that performs deflection scanning of laser beams emitted from the light sources included in the first and second light source units; and a positioning member including a first abutting portion on which the first light source unit abuts and a second abutting portion on which the second light source unit abuts, the positioning member positioning the first and second light source units. The first and second light source units are positioned by the positioning member and arranged next to each other in a rotation axis direction of the rotating polygon mirror. The positioning member is a single member disposed between the first and second light source units in the rotation axis direction.

Abstract: A linear light module having an optical coupling element and a light pipe is described. The optical coupling element receives light emitted by multiple light emitting diodes (LEDs) having different emission wavelengths and couples the light efficiently to a linear light pipe. The light from the LEDs is efficiently mixed by the optical coupling element and the light pipe to produce a linear light output that is uniform in color and intensity. Light diffusers can be used with the optical coupling element and light pipe at various locations to further enhance the uniformity of the emitted light. Novel techniques for manufacturing the light diffusers that use patterning of a suspension solution or injection molding are described.

Abstract: A scanning lens molded of resin includes: a lens portion having an elongate shape extending in a main scanning direction and having an optical surface; a slant portion having at least one slant surface slanting relative to the main scanning direction; and an ejector pin mark formed on the slant surface when thrusting out the scanning lens by ejector pins. The ejector pin mark is formed along a slanting direction of the slant surface.

Abstract: Particular embodiments disclosed herein relate to electrokinetically altered gas-enriched fluids, methods of making the same, systems for making the same and/or methods of treatment utilizing the gas-enriched fluids for eye related conditions and/or diseases. In certain embodiments, the electrokinetically altered gas-enriched fluid is oxygen-enriched water. Certain embodiments relate to cosmetic and/or therapeutic fluids and/or methods of treatment utilizing the fluids to treat a cosmetic and/or therapeutic symptom related to eye conditions and/or diseases.

Abstract: Method and apparatus for manufacturing a contact lens comprising: dispensing a plurality of separate portions (24) of a liquid composition onto a contact lens mold section (12, 16), each separate portion of the liquid composition having a volume of less than about 1000 nano-liters.

Abstract: A method of producing at least one of microscopic and submicroscopic particles includes providing a template that has a plurality of discrete surface portions, each discrete surface portion having a surface geometry selected to impart a desired geometrical property to a particle while being produced; depositing a constituent material of the at least one of microscopic and submicroscopic particles being produced onto the plurality of discrete surface portions of the template to form at least portions of the particles; separating the at least one of microscopic and submicroscopic particles comprising the constituent material from the template into a fluid material, the particles being separate from each other at respective discrete surface portions of the template; and processing the template for subsequent use in producing additional at least one of microscopic and submicroscopic particles.

Abstract: Provided is a thioepoxide functional polymerizable composition comprising a reaction product of thiourea and an epoxide functional, polymerizable composition. The epoxide functional, polymerizable composition comprises a reaction product prepared from a reaction mixture comprising: (a) a monomer comprising at least one ethylenically unsaturated ester functional monomer having an epoxide functional group; and (b) a compound having two or more thiol groups. The reactants (a) and (b) are reacted via a Michael addition reaction in the presence of a base to form an epoxide functional reaction product. Also provided are methods of preparing an optical article using the polymerizable compositions.

Abstract: A resin composition containing a specific cellulose-based resin and a specific fumaric acid diester polymer in a specific blending ratio or containing, as the resin component, a specific cellulose-based resin and a specific fumaric acid diester polymer in a specific blending ratio and containing the resin component and an additive having an aromatic hydrocarbon ring or the like in a specific blending ratio. An optical compensation film can be produced using the resin composition.

Abstract: A plastic lens barrel and method for manufacturing the plastic lens barrel are provided. The plastic lens barrel includes a front portion, a rear portion, a side portion, and at least three gate vestiges formed on at least one of the front portion, the rear portion, and the side portion. The front portion has a front opening. The rear portion has a rear opening. The side portion connects the front portion and the rear portion. An outermost diameter of the plastic lens barrel is Dmax and Dmax<10 mm. The method for manufacturing the plastic lens barrel by injection molding with a plurality of injection channels includes the steps of providing an injection mold of a plastic lens barrel structure having at least three injection channels and injecting a molding material into the injection mold through the injection channels to obtain the plastic lens barrel.

Abstract: A manufacture method of an optical sheet made of a transparent thermoplastic resin sheet on whose surface a regular geometric design working is performed, the optical sheet manufacture method comprising steps of performing a geometric design working on the resin sheet at a temperature not lower than a glass transition temperature of the resin sheet, by using a metal endless working belt formed with a geometric design on a surface thereof, rapidly cooling the resin sheet on which the geometric design working is performed to a temperature lower than the glass transition temperature, and detaching the rapidly cooled resin sheet from the metal endless working belt.

Abstract: An optical waveguide is cut by moving a heated knife blade across the optical waveguide with the knife blade maintained at a predetermined angle. At that time, by maintaining the temperature of the knife blade at a temperature not lower than the glass transition point of the optical waveguide, a portion, in contact with a bevel plane of the knife blade, of the optical waveguide softens to be planarized along the bevel plane. In this way, an optical path conversion mirror constituted of a planarized cut plane is formed in a region through which the bevel plane has passed.

Abstract: A pressing mold for optical lenses, which molds a ring-zone-type diffraction lens having a plurality of concentric ring zones, the mold including: diffraction action transfer surfaces configured to form diffraction action surfaces that diffract light passing through the diffraction lens; and step transfer surfaces configured to form step surfaces that connect the adjacent diffraction action surfaces of the diffraction lens, wherein surface roughness of the step transfer surfaces is larger than surface roughness of the diffraction action transfer surfaces.

Abstract: A transparent protection window, a flexible display apparatus, and associated method, the transparent protection window including a first area extending in one direction, the first area having a first thickness; a second area extending in a direction different from that of the first area, the second area having a second thickness; and a third area connecting the first area to the second area, the third area including a portion having a curved surface, wherein the first thickness of the first area is less than the second thickness of the second area.

Abstract: The present disclosure relates to thermoplastic compositions, methods of making thermoplastic compositions, and articles made from thermoplastic compositions. The disclosed compositions comprise a polycarbonate polymer, a triacylglyceride release agent, and a monoacylglyceride release agent. In an embodiment, the thermoplastic composition comprises: greater than 90 weight percent based on the total weight of the composition of a melt polycarbonate polymer; a triacylglyceride release agent; and a monoacylglyceride release agent. The total amount of triacylglyceride release agent and the monoacylglyceride release agent is 0.01 to 0.5 weight percent based on the total weight of the composition.

Abstract: The present disclosure is directed toward solutions, transparent films prepared from aromatic copolyamides, and a display element, an optical element or an illumination element using the solutions and/or the films. The copolyamides, which contain pendant carboxylic groups are solution cast into films using cresol, xylene, N,N-dimethylacetamide (DMAc), N-methyl-2-pyrrolidinone (NMP), dimethylsulfoxide (DMSO), or butyl cellosolve or other solvents or mixed solvent which has more than two solvents. When the films are thermally cured at temperatures near the copolymer glass transition temperature, after curing, the polymer films display transmittances >80% from 400 to 750 nm, have coefficients of thermal expansion of less than 20 ppm, and are solvent resistant.

Abstract: A method of forming an optical plastic lens includes prepare an molding material and thermal color-changeable or photo color-changeable material; the thermal color-changeable or photo color-changeable material is mixed into the molding material when the molding process is performed to allow the thermal color-changeable or photo color-changeable material exist in the plastic lens uniformly to change the color under photo change or thermal change.

Abstract: A purpose is to provide a method for producing a wafer lens and a device, capable of forming a wafer lens provided with a plurality of optical elements having intended properties. In order to adjust the gap between a molding die 91 and a transparent substrate 95, a positioning device 50 provided independently of the molding die 91 is used, and thus provision of a gap-adjusting projection in the molding die 91 becomes unnecessary and the thickness of an optical element 15 based on an optical surface Pd can be set regardless of the thickness of the transparent substrate 95. Consequently, there can be formed a wafer lens WL provided with a plurality of optical elements 15 having intended properties.

Abstract: A prismatic repeating frame assembly for a battery pack includes a main body and a hollow compression limiter. The main body is formed from a first polymer. The main body has an aperture formed therein. The hollow compression limiter is formed from a second polymer. The compression limiter is disposed in the aperture of the main body and permits a compression rod to be disposed therethrough. The second polymer is configured to withstand forces during an assembly of the battery pack and frequency inputs during an operation of the battery pack.

Abstract: The invention is a disposable cover handle cover for a surgical lighthead, and more particularly to a single-piece, integrally-formed disposable handle cover for a surgical lighthead and the like. The disposable cover includes a single-piece hollow member having a first open end adapted to receive the positioning handle of the surgical lighthead housing a camera and a second open end generally opposite the first end. The second end is closed off by a lens disposed within and integral with the hollow body.

Abstract: An adjustable optical device comprising at least a deformable optical surface activated by linear fluidic actuators comprising: a material layer comprising an upper surface on which the optical surface is provided and a bottom surface; an actuator layer comprising a plurality of linear fluidic actuators separated by at least one cavity, where at least one linear fluidic actuator is a pillar extending in the actuation direction (L) which is non parallel to the bottom surface of the material layer, said pillar comprising a wall delimiting an internal cavity and where an upper surface of said pillar is continuously linked to a zone of the bottom surface of the material layer; fluidic inlets suitable for introducing a fluid in at least one internal cavity of a pillar linear fluidic actuator.

Abstract: A method for manufacturing a lens which includes raised portions arranged on a surface of the lens with a pitch smaller than or equal to a predetermined pitch, and is configured to reduce reflection of light having a wavelength longer than or equal to the predetermined pitch includes preparing a molding die in which recessed portions corresponding to the raised portions are formed, filling a molten resin material into a cavity of the molding die via a gate, and curing the resin material in the molding die. The molding die includes a peripheral region in a periphery of the gate, and an adjacent region adjacent to the peripheral region. First recessed portions in the peripheral region are deeper than second recessed portions in the adjacent region.

Abstract: A plastic lens includes: a lens body which has a first surface, a second surface opposite to the first surface, a circumferential surface interconnecting the first surface and the second surface, and a central optical axis along which the first and second surfaces are arranged, the first surface having a curved surface portion and a stepped surface portion surrounding the curved surface portion; a first flash that is located at the stepped surface portion and that surrounds the central optical axis; and a second flash that is located at the stepped surface portion and that surrounds the first flash.

Abstract: A virtual image emerging ornamental body including: a unit array in which pixel units are disposed; and a condensing element array configured of a plurality of condensing elements which are disposed in positions are associated with the pixel units, in which an arrangement pitch of one side of the pixel units or the condensing elements includes an arrangement pitch having a value of two or more integral multiples of a value which is obtained by adding a predetermined difference to an arrangement pitch of the other side.

Abstract: A method of making an achromatic gradient index singlet lens comprising utilizing a gradient index material with a curved front surface in which light does not follow a straight line as it travels through the material and wherein different color rays traverse different curved paths, utilizing the natural dispersion of the curved front surface as a strong positive lens, and developing a weakly diverging GRIN distribution within the lens to balance the chromatic aberrations of the curved front surface.

Abstract: This invention provides a mold with which a two-dimensional subwavelength grating can be produced with a higher percentage transfer by injection molding and a two-dimensional subwavelength grating having a high aspect ratio produced with such a mold. The mold for a fine grating according to the present invention has protrusion parts (107) arranged at an interval on the bottom face (103) of a cavity, wherein the interval is a distance between centers of the protrusion parts and a period of the fine grating smaller than wavelengths of visible lights. In one embodiment, a cross-section of the protrusion parts, parallel to the bottom face of the cavity decreases with height along the protrusion parts and a decreasing rate of the cross-section increases with height along the protrusions.

Abstract: The invention relates to a process for producing biomedical articles, in particular, silicone hydrogel contact lenses having durable hydrophilic chitosan coating. The chitosan coating is covalently attached to the medical device by performing a crosslinking reaction between chitosan and the carboxylic groups on the surface of a medical device directly in a sealed package during autoclave. The coated biomedical articles obtainable by the process of the invention have desirable characteristics regarding adherence to the substrate, durability, hydrophilicity, wettability, biocompatibility and permeability and are thus especially useful in the field of ophthalmic devices.

Abstract: A light diffuser panel for coupling to an optical element, includes a plurality of first type layers of a first type of material with a refractive index n1, and a plurality of second type layers of a second type of material with a different refractive index n2, wherein each of the first type layers and each of the second type layers are arranged to form a plurality of interface surfaces between alternating first type layers and second type layers, tilted at a plurality of angles with tilt axes that are parallel to a plane of the light diffuser panel, such that visible light from the optical element is transmitted through the light diffuser panel and the interface surfaces, and a portion of the visible light from the optical element is reflected out of the light diffuser panel at each of the interface surfaces.

Abstract: A photochromic lens is proposed which can lose its color in a shorter period of time, and which is less likely to deteriorate when exposed to ultraviolet radiation. The photochromic lens is formed by dissolving 0.03 to 0.2 parts by mass of a spirooxazine photochromic compound in tetrahydrofuran, mixing the solution thus obtained into 100 parts by mass of a lens resin material so that the photochromic compound is uniformly dispersed in the resin material.

Abstract: A method of replicating at least one optical element is provided, the method including the steps of: providing a substrate with two large sides and at least one pre-defined replication site defined by a through hole or blind holes at corresponding locations on both large sides of the substrate; and adding, by replication, a replicated structure to the substrate, the replicated structure adhering to the substrate and having, at the replication site, replication material in the through hole or in the two blind holes, respectively and a first replicated surface and a second replicated surface, the first and second replication surfaces facing towards opposite sides.

Abstract: Provided is a method of manufacturing imaging optical elements which cause a plural light beams to enter a deflection unit, and guide those beams to corresponding surfaces to be scanned, the imaging optical elements being arranged optically at the same position, having the same optical performance, the method including: measuring, with respect to the imaging optical elements having the same optical performance, the optical performance at each of a plurality of positions of the different light beam passing states; calculating a correction shape of an optical functional surface of the imaging optical element based on a deviation amount from a design value of the optical functional surface of the imaging optical element; performing correction processing on a shape of a mirror-finish insert of a mold for molding based on the correction shape of the optical functional surface; and performing molding by using the mirror-finish insert subjected to the correction processing.

Abstract: An optical element 1 comprises a base 2 having a surface 2a formed with a depression 3 and a formed layer 4 disposed on the base 2. The formed layer 4 has a main part 5 located within the depression 3 when seen in the depth direction of the depression 3 and an overhang 6 located on the surface 2a of the base 2 while being connected to the main part 5. A curved surface 4b opposing a bottom face 3b of the depression 3 in the main part 5 is provided with an optical function part 10.

Abstract: A light diffuser panel for coupling to an optical element, includes a substrate with a first surface that is diffusive to a plurality of wavelengths of light and a second surface, wherein the substrate comprises a material with a refractive index nin that is greater than a refractive index nd of a medium outside of the first surface, ?min is a minimum wavelength of the plurality of wavelengths of light, ?max is a maximum wavelength of the plurality of wavelengths of light, the first surface is a diffractive grating surface with a grating period P, the grating period P is greater than ?max/(nd+nin), and P is smaller than ?min.

Abstract: The subject matter described herein includes a curved VPH grating with tilted fringes and spectrographs, both retroreflective and transmissive, that use such gratings. A VPH grating according to the subject matter described herein includes a first curved surface for receiving light to be diffracted. The grating includes an interior region having tilted fringes to diffract light that passes through the first surface. The grating further includes a second curved surface bounding the interior region on a side opposite the first surface and for passing light diffracted by the fringes.

Abstract: A method and system for manufacturing a contact lens are disclosed involving aligning a male lens mold section and a female lens mold section. A picking head removes a male lens mold section from a male pallet for transfer to a female mold section on a female pallet. The picking head may move substantially freely in a plane perpendicular to the longitudinal axis of the picking head as the distance between the male and female mold sections decreases. Alignment, for example, substantially precise alignment between the male mold section, carried by the picking head, and the female mold section carried by the female pallet may be achieved before the male mold section comes in contact with the female mold section.

Abstract: This invention provides an injection-molded plastic optical lens comprising: an optical effective region and a peripheral region that are concentrically formed. An outer edge of the peripheral region comprises an indentation section, and an accommodation space surrounded by the indentation section of the outer edge of the peripheral region and an extending line extending from the non-indented section of the outer edge of the peripheral region. The accommodation space confines a flash generated during the injection-molding process of the plastic optical lens so that the assembling of the present plastic optical lens will not be affected. The present invention employs a mold having an air duct connected to an indentation configuration of the mold. The indentation section of the plastic optical lens is formed through a mold replication of the indentation configuration.

Abstract: The present invention concerns a method of manufacturing a lens for motor vehicle lighting modules, the method being intended to generate on the output surface (104) of said lens (100) microstructures formed by level differences situated on said output surface (104), the method including the following steps of forming a meshing on the output surface of said lens such that each mesh has similar dimensions, and generating in each mesh a microstructure formed by an output surface level difference, each level difference having a profile that varies as a function of the position of the mesh on the output surface of the lens.

Abstract: A manufacturing method for an input module by plastic injection molding has the following steps. First, a sensing substrate is prepared and is put into a mold. A plastic is injection molded to form a cover lens or a supporting board on one side of the sensing substrate. Therefore, by injection molding to form and combine the structures together, the manufacturing process for the input module is simplified and the combination strength of the input module is also enhanced.

Abstract: An optical obturator for penetrating tissue and being at least partially positionable within a cannula assembly. The obturator may include an obturator housing at a proximal end of the obturator and may configured to be grasped by a user. The obturator housing may define an opening for receiving an endoscope, the obturator housing including an endoscope retention mechanism adapted for securing and stabilizing an endoscope inserted therethrough. The obturator housing may also include at least one attachment mechanism for enabling selective attachment and detachment of the obturator housing to the cannula assembly. The obturator may also include an obturator shaft integrally formed with the obturator housing. The obturator shaft may define a hollow interior configured to receive the endoscope inserted through the opening. A penetrating member is disposed at the distal end of the obturator shaft. The obturator may be formed as a single component, preferably from transparent material.

Abstract: Disclosed is a method of manufacturing a biaxial polynorbornene-film having a compensation film which has good light transmittance and a uniform in-plane retardation value and can function as both a negative C-plate and an A-plate.

Abstract: An optical cable includes an optical fiber, a primary coating coated on the optical fiber, and an outer coating coated on the primary coating. The optical cable is spiral, and can be compressed or stretched. The outer coating comprises about 40 to 70 weight percent of caoutchouc, about 20 to 50 weight percent of neoprene, about 0 to 6 weight percent of magnesium oxide, about 0 to 6 weight percent of zinc oxide, and about 0 to 6 weight percent of vulcanization accelerator.

Abstract: A method of manufacturing an optical element having a good reflection preventing characteristic is provided in which an irregularity structure having a reflection preventing function can be formed at low temperature. The method includes forming a film on the optical substrate by using a coating liquid containing a metal alkoxide containing at least aluminum, immersing the film in a water-containing liquid, baking the film having been immersed in the water-containing liquid, and subjecting the film having been baked to treatment with warm water to form an aluminum-containing film having a fine irregularity structure.