Abstract: The present disclosure provides a 3D display assembly and a 3D display apparatus including the 3D display assembly. The 3D display assembly comprises a display panel, a 3D device and a spacing layer between the display panel and the 3D device, the display panel, the 3D device and the spacing layer overlapping with each other, wherein a first protrusion which extends beyond edges of the display panel and the 3D device is formed on at least one side of the spacing layer other than its side facing towards the display panel and its side facing towards the 3D device. The protrusion is used to support the entire display assembly to avoid misalignment between the display panel and the 3D device due to undue weight of the spacing layer.

Abstract: An image display device includes a first substrate on which first aperture areas are formed, a second substrate on which second aperture areas are formed, an optical element, a plurality of unit pixels each including a first-viewpoint pixel for displaying an image for a first viewpoint and a second-viewpoint pixel for displaying an image for a second viewpoint, an optical path distribution unit, and a plurality of light-shielding areas including edge sections facing each other in a first direction, one of the edge sections being defined by one of the first aperture areas, the other of the edge sections being defined by one of the second aperture areas, and the one of the edge sections and the other of the edge sections being parallel, under a condition that the first substrate and the second substrate are joined together with positions thereof in the first direction being aligned.

Abstract: A multilayer display apparatus included in an in-vehicle system includes a stereoscopic vision display device formed by a 3D display unit and a 3D display control unit that display a three-dimensional image utilizing the principle of binocular disparity, a two-dimensional display device formed by a 2D display unit and a 2D display control unit that display a two-dimensional image on a two-dimensional display face, and a half-silvered mirror. The position of the two-dimensional display face is set within a predetermine range of the position of the screen of the stereoscopic vision display device by using the half-silvered mirror.

Abstract: An electrically variable lens comprising a variable Fresnel lens and a variable phase corrector plate. A liquid crystal variable Fresnel lens and liquid crystal phase corrector plate are varied in concert to compensate for wavefront discontinuities that would otherwise be produced by the Fresnel lens. The same principle is also used to provide a device capable of imposing an arbitrary spatial and temporal phase modulation on a wavefront.

Abstract: In an electro-optical device, a torsion hinge and a mirror support post are formed as one piece together with a conductive member, and in the mirror support post, a first end portion on a substrate side is an open end which is opened toward the substrate. In the mirror support post, a second end portion on a mirror side is a flat plate which closes an opening of the mirror support post, and the mirror is in contact with a surface of the flat plate at a side opposite to the substrate. The first sacrificial layer which is used for manufacturing the electro-optical device is formed by exposure, development, and etching in a state in which a hard mask is formed, with respect to the photosensitive resin layer.

Abstract: A magnification viewer lens device is provided that is used to magnify objects when viewed through the device. The device comprises a magnification lens housing supporting a magnification lens, whereby the housing is supported along its perimeter by an arm assembly. The arm assembly comprises an elongated arm and a clamp, whereby the arm assembly is rotatable relative to the housing and to the clamp. The clamp forms a rounded clamping member that is suitable for securing the device to a golf cart steering wheel or alternate support. The arm and the housing remains static relative to the hinge joints of the arm using friction hinges, while the housing supports a Fresnel lens for magnifying objects when viewed therethrough. In one embodiment, the housing is substantially rectangular and the arm and clamp are designed to secure the housing over the scorecard area of a golf cart steering wheel.

Abstract: Eyeglass frames includes a face member configured to retain at least one lens and two temple members connected to the face member. Each temple member includes a spine made of a first material and an overlay made of a second material positioned on the spine, the first material having a greater hardness than the second material. The spine includes a column and a plurality of transverse ribs. The column extends from a face-end to an ear-end of the temple member and the transverse ribs are connected to the spine. Each of the transverse ribs defines an angle relative to an axis defined by the column of the spine. Slots are formed between the ribs and the ribs are successively narrower moving from the face-end to the ear-end. The overlay is positioned on the spine and fills the slots formed between the ribs.

Abstract: An objective lens for endoscopes is constituted essentially by, in order from the object side: a negative first lens having a concave surface toward the image side; a first cemented lens, formed by cementing a second lens and a third lens having refractive powers with signs opposite each other, provided in this order from the object side, together; a stop; a positive fourth lens having a convex surface toward the image side; and a second cemented lens, formed by cementing a positive fifth lens and a negative sixth lens, provided in this order from the object side, together, in which the coupling surface is convex toward the image side. Focusing from an object at a most distant point to an object at a most proximal point is performed by moving only the second cemented lens. A predetermined conditional formula is satisfied.

Abstract: A method and apparatus for calculating a log MAR value for a reading acuity test, including the steps of displaying words on a first computer monitor, where the words will be read aloud by a person taking the test; displaying the words on a second computer monitor, where words will be observable by a person administering the test, where the administrator can select words which are incorrectly read using a pointing device; measuring the amount of time the first person takes to read the words; calculating the reading rate based upon both the words correctly and those read incorrectly; measuring the distance between the first person and the monitor; and, calculating the log MAR value based upon the distance, the font size and the reading rate.

Abstract: An apparatus for selectively connecting an accessory item to a surgical microscope includes a center pivot. An adapter arm includes an adapter support having a substantially planar support body which extends laterally in an outboard direction from the center pivot and has laterally spaced inboard and outboard support regions separated by a laterally oriented centerline. The adapter arm is configured to accept at least a portion of the accessory item in a supporting relationship. An undermount adapter includes a substantially planar undermount body having laterally spaced inboard and outboard body regions separated by a laterally oriented centerline. A plurality of microscope attachment throughholes each throughhole extend through the undermount body. Each throughhole is configured to accept a fastener for securement of the undermount adapter to the surgical microscope. An arm receiver is configured to accept the adapter tongue of the adapter arm in a supporting relationship.

Abstract: An imaging lens includes first to sixth lens elements arranged from an object side to an image side in the given order. Through designs of surfaces of the lens elements and relevant optical parameters, a short system length of the imaging lens may be achieved while maintaining good optical performance.

Abstract: Embodiments of the present invention disclose a parallax barrier, a designing method thereof and a parallax barrier type 3D display device. The parallax barrier comprises: a plurality of grating sheets, utilized to shield light, disposed in an arrangement direction and spaced apart from each other, wherein the plurality of grating sheets are divided into 2K identical grating sections each of which comprises two or more grating segments, each grating segment comprises one or more grating sheets with an identical grating pitch C, and the grating sheets included in different grating segments have different grating pitches, and the 2K grating sections are arranged symmetrically about a center line of the parallax barrier in the arrangement direction, and K is a natural number.

Abstract: The present invention provides a camera device and an optical imaging lens thereof. The optical imaging lens comprises six lens elements positioned in an order from an object side to an image side and an aperture stop positioned between the third and fourth lens elements. Through controlling the convex or concave shape of the surfaces of the lens elements, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.

Abstract: An apparatus includes at least one multijunction diode laser situated to emit a plurality of beams along respective mutually parallel propagation axes, each beam having an associated mutually parallel slow axes and associated collinear fast axes, a fast axis collimator situated to receive and collimate the plurality of beams along the corresponding fast axes so as to produce corresponding fast axis collimated beams that propagate along associated non-parallel axes, and a reflector situated to receive the plurality of fast axis collimated beams and to reflect the beams so that the reflected fast axis collimated beams propagate along substantially parallel axes.

Abstract: An ophthalmological device emits light from a measurement optical system to an eye to be examined and calculates a dimension along the eye axis of a target portion of the eye from interfering light composed of reflected light from the eye and reference light. The measurement optical system includes incidence position changing member that changes the incidence position of light emitted to the eye, and driving unit that drives the incidence position changing member so as to scan at the incidence position of emitted light in a predetermined region of the eye. The predetermined region is a region where a straight line passes through when the straight line radially extended from the cornea apex of the eye is circumferentially moved over a predetermined angle range in the case of the eye is viewed from the front.

Abstract: The invention relates to a lens which has an extended range of focus, wherein the lens consists of a solid material, the optical surfaces of the lens are transparent and the lens has a focal power distribution. According to the invention, the focal power distribution FG of the lens (1), in relation to a plane perpendicular to the optical axis (10), changes as a function of the radial height r and of the azimuth angle phi of the aperture between a base value of the focal power FL not equal to zero and a maximum value FSmax. Hence, the focal power distribution emerges as FG(r,phi)=FL+FS(r,phi), with the spiral focal power component FS(r,phi)=FSmax(r)*w(phi), where FSmax(r) depends nonlinearly on the radius and w(phi) is a factor for the focal power component with a spiral profile.

Abstract: A vehicular rearview assembly with a mirror element having a curved or rounded edge on the first surface that is fully observable from the front of the assembly, a complex peripheral ring, and a user interface with switches and sensors that activate and configure pre-defined function(s) or device(s) of the assembly in response to the user input applied to the user interface. The mirror element is supported by a hybrid carrier co-molded of at least two materials, a portion of which is compressible between the housing shell and an edge of the mirror element. The peripheral ring may include multiple bands. Electrical communications between the electronic circuitry, the mirror element, and the user interface utilize connectors configured to exert a low contact force, onto the mirror element, limited in part by the strength of adhesive affixing the EC element to an element of the housing of the assembly.

Abstract: An imaging lens includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens; a fourth lens having negative refractive power; a fifth lens having positive refractive power; and a sixth lens, arranged in this order from an object side to an image plane side. The first lens is formed so that a surface thereof on the object side has a positive curvature radius. The sixth lens is formed so that a surface thereof on the object side and a surface thereof on the image plane side have positive curvature radii. Each of the first to sixth lenses has an Abbe's number within a specific range.

Abstract: Methods, systems, and apparatus for optical communications. One of the apparatuses comprises a birefringent crystal configured to separate an incoming light beam input at a first port into component light beams having orthogonal polarization directions and directing the component light beams on respective paths to exit locations on the birefringent crystal; and a Faraday rotator positioned between the birefringent crystal and a beam folding optic assembly, wherein the Faraday rotator is positioned such that light beams exiting the birefringent crystal along a first path from a first exit location pass through the Faraday rotator before being incident on the beam folding optic assembly and that light beams exiting the birefringent crystal along a second path from a second exit location pass directly to the beam folding optic assembly without being incident on the Faraday rotator.

Abstract: In a zoom lens including, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a fourth lens unit having a positive refractive power, an appropriate setting is performed for each of the following: a movement locus for each lens unit; lateral magnifications ?34w and ?34t of a composite lens system of the third lens unit and the fourth lens unit at a wide angle end and at a telephoto end, respectively; lateral magnifications ?2w and ?2t of the second lens unit at the wide angle end and at the telephoto end, respectively; and lateral magnifications ?3w and ?3t of the third lens unit at the wide angle end and at the telephoto end, respectively.