Abstract: An electromagnetic wave cloaking device is described. The device may include a plurality of first-type dielectric units, a plurality of second-type dielectric units, and a plurality of four kinds of spacers. The dielectric units and the spacers are arranged such that an electromagnetic wave incident into the cloaking device can be refracted within the device and around a cloaking area surrounded by the device.

Abstract: A 3D display apparatus is disclosed and has a display panel, a collimating backlight module, a lens array and a curved diffuser array. The lens array is mounted on the display panel and has a plurality of lens units arranged in an array manner. The curved diffuser array is mounted between the display panel and the lens array and includes a plurality of curved diffuser plates arranged in an array manner. The positions of the curved diffuser plates correspond to the positions of lens units, respectively. The light of a two-dimensional image projected by the display panel first goes through a diffusion treatment provided by the curved diffuser array, and then passes through the lens array to reconstruct a 3d scene.

Abstract: A light divider includes a light guide having first and second surfaces that reflect light incident on the guide and cause the light to propagate through a portion between the first and second surfaces. A first light dividing layer on the second surface reflects part of the light having propagated through the guide and transmits part thereof so that the light is divided into light fluxes. A first transparent piece on the second surface in a position where the light that the first light dividing layer has transmitted is incident, the first transparent piece having a first reflection surface that reflects the incident light, a second transparent piece that is provided on the second surface in a position where the light reflected off the first light dividing layer and reflected off the first surface is incident, the second transparent piece has a second reflection surface that reflects the incident light.

Abstract: An apparatus for structured illumination of a specimen comprises an illumination device for generating illumination beams. The illumination beams are incident on a mask device. Openings provided in the mask device serve for generating a mask image. The mask image is imaged within the specimen with the aid of an objective. Detection beams generated by the specimen are captured by a detection device. For increasing the intensity of the observation beams entering the specimen, those beams which do not pass through the openings, are collected with the aid of a beam collector and guided back to the mask device.

Abstract: An optical image capturing system is provided. In the order from an object side to an image side, the optical image capturing system includes a first lens with positive refractive power; a second lens with refractive power; a third lens with refractive power; and a fourth lens with refractive power; and at least one of the image-side surface and object-side surface of each of the four lens elements is aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

Abstract: A lens barrel module is disclosed to include a lens barrel unit and a flow path unit. The lens barrel unit extends along an axis and includes a peripheral wall that surrounds the axis and that has a first end adjacent to an object side of a lens assembly and a second end opposite to the first end and adjacent to an image side of the lens assembly. The peripheral wall defines an accommodation space configured as a series of accommodation sections for receiving the optical members. The flow path unit is formed in the lens barrel module and is in spatial communication with at least two of the accommodation sections. A lens assembly including the lens barrel module is also disclosed.

Abstract: The present invention provides an electrochromic nanocomposite film. In an exemplary embodiment, the electrochromic nanocomposite film, includes (1) a solid matrix of oxide based material and (2) transparent conducting oxide (TCO) nanostructures embedded in the matrix. In a further embodiment, the electrochromic nanocomposite film farther includes a substrate upon which the matrix is deposited. The present invention also provides a method of preparing an electrochromic nanocomposite film.

Abstract: A lens module includes a lens barrel and a lens group accommodated in the lens barrel. The lens group includes a first lens and a second lens, each of the first lens and the second lens including an arc part and a peripheral part around the arc part. A matching structure is formed by the peripheral part of the second lens and the peripheral part of the first lens. By virtue of the matching structure, the lens module of the present disclosure has a high concentricity.

Abstract: A screwless eyeglass frame, including a rim support, a temple support and a pivoting clip. The rim support includes a first end face and an engagement slot recessed inwardly from the first end face. The temple support includes a second end face, two extending walls extended outwardly from two corresponding sides of the second end face, respectively, and a shaft rod provided between the two extending walls. The pivoting clip includes a C-shaped buckle with resilience, two connecting legs connected with two ends of the C-shaped buckle, respectively, and an opening located between the two connecting legs. In this case, the C-shaped buckle is allowed for pivotally connecting to the shaft rod. The two connecting legs are tenoned into the engagement slot, and the temple support is capable of rotating with respect to the rim support around the shaft rod and the C-shaped buckle.

Abstract: An eyewear lens is described that provides polarization filtering and spectral filtering using polarization interference. The lens produces enhanced saturation and colorfulness, increasing enjoyment when observing commonly encountered imagery. The lens can be configured to optimize accuracy/efficiency when performing a task involving colored imagery, and can improve performance in sports. The lens can further be helpful for color discrimination by those with certain types of color vision deficiency.

Abstract: An autostereoscopic display device comprises a display panel and a lenticular array provided over the display panel. The lenticular array comprises an array of lenticular lenses each having a parallel elongate axis and arranged side by side in a pitch direction. The display panel comprises a shutter type display, with a transition between light modulating state involving movement of the light modulating medium generally in a direction perpendicular to the lenticular pitch direction.

Abstract: Provided is a lens driving device which includes: a lens holder including a coil; a frame for receiving the lens holder; a driving circuit board disposed below the frame; a plurality of first conductive elastic bodies disposed in a manner to keep the lens holder moving in a Z-axis direction; and a plurality of second conductive elastic bodies disposed in a manner to keep the frame moving in a direction perpendicular to the Z-axis direction. The lens driving device further comprises a plurality of electrical contact-oriented Z-axis position sensor. The Z-axis position sensor senses the motion of the lens holder in the Z-axis direction. An electronic circuit between a portion of the plurality of electrical contacts and the coil of the lens holder comprises a Molded Interconnect Device and a portion of the first conductive elastic bodies. The Molded Interconnect Device is disposed on the frame.

Abstract: An interchangeable frame for eyeglasses comprises an upper frame and a lower frame, which are respectively formed corresponding lens-assembling portions. The connection site between the upper frame and the lower frame has a connection block and a connection notch, corresponded to connect to each other, and the both sides of the connection block and the connection notch have a ditch and a flange, engaging upon each other, making the upper frame and the lower frame connect to form in one. Therefore, according to the required, the upper frame and the lower frame can be assembled and disassembled freely to form the semi-rim eyeglasses or the full-rim eyeglasses.

Abstract: Systems and methods for improving ophthalmic imaging by correlating the location of a measurement on the pupil of the eye with a quality of the measurement and further controlling subsequent measurements based on the quality are presented. Aspects of the invention include obtaining optical coherence tomography (OCT) measurements through cataracts or other media opacities, obtaining B-scans with minimized tilt, and automated OCT data acquisition of select structures in the eye. Embodiments of the invention directed towards imaging tissues with angle dependent layer contrast and mapping the size and location of cataracts in the eye are also described.

Abstract: Apparatus (systems) and methods are described for generating and displaying a virtual true 3D image viewable by a single eye of a viewer. A fixed-curve mirror is translated along an optical axis in synchrony with a temporally-modulated 2D image generator to generate a virtual image in multiple virtual image planes, enabling depth perception of the image by a single eye of the viewer.

Abstract: This invention discloses methods and apparatus for providing a media insert with an energy source to an ophthalmic lens. The energy source is capable of powering a component included within the ophthalmic lens. In some embodiments, an ophthalmic lens is cast molded from a silicone hydrogel and the component includes an electro-optical lens portion.

Abstract: Present embodiments provide for an optical imaging lens. The optical imaging lens includes a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements and designing parameters satisfying at least two inequalities, the optical imaging lens shows better optical characteristics, increases the effective focal length and narrows the angle of view while the total length of the optical imaging lens is shortened.

Abstract: A binocular vision analyzer apparatus is used for determining a prescription of visual aids for the eyes of an individual. The apparatus includes first and second targets respectively corresponding to the first and second eyes of the individual and at least one illuminator unit for illuminating the targets. An optical system is configured to present respective virtual images of the first and second targets so as to be viewable by the respective first and second eyes. At least one beam splitter disposed in front of the first and second eyes directs the virtual images toward the respective eyes. The apparatus also includes first and second spherical correction devices and first and second cylindrical correction devices that respectively correspond to the first and second eyes.

Abstract: Methods and apparatuses for determining contact lens intolerance in contact lens wearer patients based on tear film characteristics analysis and dry eye symptoms are disclosed. In embodiments herein, imaging of the ocular tear film is performed during contact lens wear. An analysis of the image of the ocular tear film is performed to determine one or more tear film characteristics of the ocular tear film. The tear film characteristics can be used to determine the effect or possible effect of contact lens wear on the ocular tear film, and thus be used to determine contact lens intolerance of the patient. The tear film characteristics used to analyze contact lens intolerance based on images of the ocular tear film involving contact lens wear may include dry eye symptoms, including but not limited to tear film (e.g., lipid and/or aqueous) thickness, tear film viscosity, and tear film movement rate in the eye.

Abstract: An optical coherence tomography apparatus includes a generation unit configured, based on interfering light produced by interfering a return beam and a reference beam of light emitted toward the object to be measured, to generate tomographic images of an object to be measured, an image processing unit configured to perform image processing for increasing image quality to at least one of the tomographic images generated by the generation unit, and a display control unit configured to display one of the tomographic images generated by the generation unit and then display the image on which the image processing is performed by the image processing unit on a display unit.