Abstract: A microreplicated article is disclosed. The article includes a web including first and second opposed surfaces. The first surface includes a first microreplicated structure having a plurality of first features. The second surface includes a second microreplicated structure having a plurality of second features. Corresponding opposed features cooperate to form a lens features.

Abstract: The position of an object surface is detected with an error reduced on a reflectance boundary surface. A first light source (100) emits the luminous flux of the first wavelength. A first illumination optical system (200A) illuminates a small area on a retina (61) to be examined by the first luminous flux from the first light source (100). A first reception optical system (300A) guides a part of the luminous flux which is reflected by and returning from the retina (61) to be examined to a first light reception part (510) via a first conversion member (400) for converting the reflected luminous flux into at least 17 beams. A second light source (110) emits the luminous flux of the second wavelength. A second illumination optical system (200B) illuminates a predetermined area on the retina (61) to be examined by the second luminous flux from the second light source (110).

Abstract: A pair of eyeglasses includes two temple pivotal bases respectively connected to the opposite sides of a lens frame, and each temple pivotal base has its front side formed with a recessed surface. Two cover-position members are respectively and pivotally assembled on the recessed surface of the temple pivotal base. The lens frame has the opposite portions near a bridge respectively provided with an arc-shaped recessed groove for fitting a lens therein. To assemble a lens on the lens frame, simply turn open the cover-position member, fit the lens in the recessed groove through the recessed surface and then close pivotally the over-position member on the recessed surface to finish assembly of the lenses.

Abstract: A fundus camera capable of performing accurate and easy focusing in photographing a peripheral portion of a fundus has a photographing optical system including a photographing optical axis, a focusing lens movable in a direction of the photographing optical axis and an image-pickup element, a lens moving unit, a focus target projection optical system, a focus target detection optical system, a fixation target presenting unit, in which a presenting position of the fixation target is changeable between a reference position for photographing a central portion of the fundus and a position for photographing a peripheral portion, a device which controls the lens moving unit to perform automatic focusing, and a device which controls the fixation target presenting unit to bring the presenting position of the fixation target to the reference position when the automatic focusing is actuated, even though the presenting position is set to the peripheral position.

Abstract: An ophthalmic placido pattern 10 is used to determine a curvature of an anterior surface of a cornea of an eye. The pattern 10 includes a series of alternating light and dark concentric rings 12 and 14 centered about a central point 16. A series of shaped geometric shapes 18 and 20 are placed about at least some of the concentric rings 12 and 14. The shapes 18 and 20 are of a contrasting color with respect to the ring 12 or 14 on which the shape 18 or 20 is placed.

Abstract: Presented are a shape measuring step (A) in which the size L of an eyeball 1 and the shape R of the eyeground 2 are measured, an eyeball setting step (B) for setting an eyeball template 3, an eyeground image taking step (C) for taking images of the eyeground including superimposed portions d by shifting the imaging positions, a parameter setting step (D) for obtaining an eyeball parameter g that represents the positional relationship between the eyeground and images, an image pasting step (F) for pasting a number of images on the eyeball template, and a three dimensional image displaying step (H) for displaying three dimensional eyeground images 5 on the eyeball template on a display device 16.

Abstract: Disclosed is an eyewear retention system, which may include any of a variety of electronics, including telecommunications receivers, transmitters, electronic storage devices, and head-up display driving circuitry.

Abstract: An eyeglass can have a digital audio file storage and playback device and earphones supported by the eyeglass frame so as to provide a personal and portable audio player integrated into eyeglasses.

Abstract: A method and system for generating colors efficiently. In one embodiment, a start signal for a primary color subcycle may be received. A primary light source used to drive the primary color may be activated if there is data in the primary color's buffer. The primary light source may be deactivated during the primary color subcycle if there is no data in the primary color's buffer. In another embodiment, a highest amplitude signal for one of a plurality of primary colors may be normalized. A drive light source intensity may be adjusted to a percentage of a maximum intensity where the percentage corresponds to a content of the normalized primary color in a frame. The amplitude of all but the normalized primary color may be adjusted proportionally. In another embodiment, a maximum intensity for a light source intensity may be set to a first value. A maximum pixel intensity for each of a plurality of pixels may be set to a second value.

Abstract: According to the present invention, there is provided an ophthalmologic apparatus in which identifying power for the index or an index indicating state is improved to eliminate the confusion of a person to be examined, so that an eye examination time period can be shortened and the reliability of an eye examination can be improved. The ophthalmologic apparatus includes an index plate that displays an index, an index projecting optical system that projects the index to an eye to be examined, a variable cross cylinder that produces a pair of index indicating states of the index used for a cross cylinder test, a lamp and a liquid crystal screen that generate identifiers serving as identification information, and a dichroic mirror that combines the identifiers with the pair of index indicating states to be indicated to the eye to be examined.

Abstract: A pair of eyeglasses with lens fastening arrangement includes a frame having two sets of one or more through holes formed on an outer top and/or bottom edge of each of a pair of openings. The through holes communicate with grooves of the openings. A pair of lenses each includes one or more projections formed on an outer top and/or a bottom edge of each lens. The projection is adapted to lockingly engage with the through hole with peripheral edges of the lenses being inserted into the grooves of the openings of the frame when the lenses are firmly fitted in the openings of the frame. Thereby, loosening of the lenses by bending temples of the eyeglasses is substantially impossible.

Abstract: Disclosed herein is a micromirror device having in-plane deformable hinge to which a deflectable and reflective mirror plate is attached. The mirror plate rotates to different angles in response to an electrostatic field established between the mirror plate and an addressing electrode associated with the mirror plate.

Abstract: An eyeglass frame that includes a frame body having a lens support portion, and first and second earstem portions, which extend rearwardly from first and second lateral sides of the lens support portion, respectively. The frame body includes a first member and a second member. The first and second members are partially coextensive, and each of the first and second members define a portion of an outward-facing surface of the eyeglass frame.

Abstract: Obtaining an image frame picked up by a camera 2 through a cable C, a CPU 10 of a computer 1 identifies an eye area in the image frame and stores a template indicating the identified area as a tracking template. Moreover, the CPU 10 identifies an eye area in an image frame to be obtained subsequently on the basis of the tracking template, and calculates a correlation value between the template of the identified area and the tracking template. Furthermore, when the calculated correlation value is larger than a threshold stored in an HD 11 in advance, the CPU 10 stores the template indicating the identified area in the RAM 12 as a tracking template, so as to update an eye area in a series of two image frames in chronological order.

Abstract: Various embodiments involving structures and methods for illumination can be employed, for example, in projectors, head-mounted displays, helmet-mounted displays, back projection TVs, flat panel displays as well as other optical systems. Certain embodiments may include prism elements for illuminating, for example, a spatial light modulator. Light may be coupled to the prism in some cases using fiber optics or lightpipes. The optical system may also include a diffuser having scatter features arranged to scatter light appropriately to produce a desired luminance profile. Other embodiments are possible as well.

Abstract: The invention provides an optical switching element and a device, an optically addressed type display medium and a display each including such an optical switching element. The optical switching element comprising an optical switching layer including lower and upper charge generating layers and a charge transporting layer sandwiched therebetween, wherein the optical switching element has at least one of the following characteristics. (1) In the charge transporting layer, a charge transporting material to binder polymer ratio calculated according to the formula: [charge transporting material/(charge transporting material+binder polymer)]×100 (% by weight) is 50% by weight or more; (2) a polymer compound is used as the charge transporting material; and (3) the charge generating layer on the light incident side (the lower charge generating layer) has a lower light absorptance than that of the other charge generating layer (the upper charge generating layer).

Abstract: The holder for eyeglasses is a sleeve attached to a clip that holds one temple piece of a folded pair of eyeglasses. The sleeve is tubular, defining a cavity, an open top end and an open bottom end. The sleeve is made of elastic material to grip the temple piece. Optionally, a ring of elastic material is sewn to the top end of the sleeve to further retain the sleeve's grip on the temple piece. The clip is attached to the sleeve parallel to the cavity of the tubular sleeve. The clip permits the sleeve, which holds the eyeglasses, to hang from clothing or an article normally carried on the user's person, such as a purse.

Abstract: An electrophoretic display device of the present invention is formed of a first substrate, a second substrate, and microcapsules which are accommodated between these substrates and which contain an electrophoretic dispersion, wherein each of the microcapsules has an opening in at least a part thereof.

Abstract: Eyeglasses can be folded to form a case with a lens and temple bars. The lens and the temple bars form two individual objects of connection. A hinging apparatus connects the lens and the temple bars. One end of the hinging apparatus forms a rotating connection while the other end of the hinging apparatus forms a pivotal connection. The rotating connection and the pivotal connection are perpendicular to each other. Two hollow sections are formed on the temple bars so that turning and locking the hinging apparatus can be store the lenses in a chamber formed by the two hollow sections.

Abstract: A spatial light modulator including a thin layer of solid-state electro-optical material having parallel, opposite first and second surfaces, an elongated first electrode disposed on the first surface and a plurality of spaced, elongated second electrodes disposed on the second surface and generally perpendicular to the first electrode. The layer of solid-state electro-optical material has a thickness in the range of approximately 5 to 15 microns, and is composed of PLZT. In one embodiment, a plurality of thin regions of insulator are disposed on the first surface between portions of the first electrode and the electro-optical material.