Abstract: Optical apparatus includes an acousto-optic medium and an array of multiple piezoelectric transducers attached to the acousto-optic medium. A drive circuit is coupled to apply to the piezoelectric transducers respective drive signals including at least first and second frequency components at different, respective first and second frequencies and with different, respective phase offsets for the first and second frequency components at each of the multiple piezoelectric transducers.

Abstract: Methods for the amelioration of ectatic corneal disorders using corneal augmentations are disclosed. The shape of the augmentation is determined using data obtained from mapping of a patient's cornea based on computerized corneal topography and tomography. Factors considered include the maximum keratometry and specific iso-deviation contours. In one embodiment, an augmentation is inlayed into a femtosecond created, intrastromal pocket. In a further embodiment, an onlay augmentation is positioned over a region of the cornea from which the epithelial layer has been removed. The onlay is held in place by glue, sutures, tucking under a perimeter chamfer, or some combination thereof, until the epithelial layer regrows over the augmentation. In a further embodiment, the inlay or only augmentation is followed by a post-augmentation, further reshaping of the corneal augmentation. In one embodiment, this further reshaping is photorefractive keratectomy (PRK) surgery.

Abstract: Embodiments provide for a tunable driving circuit by monitoring a frequency of a ring oscillator of an electrical integrated circuit connected to an optical modulator to determine operational characteristics of the electrical integrated circuit; setting, based on the operational characteristics, a driving voltage for a plurality of tunable inverters and a plurality of fixed gain inverters that control the optical modulator, wherein each tunable inverter of the plurality of tunable inverters is connected in parallel with a corresponding fixed gain inverter of the plurality of fixed gain inverters on one of a first arm and a second arm connected to the optical modulator; and setting an amplification strength for the plurality of tunable inverters based on the operational characteristics.

Abstract: An electro-optic display includes a first light-transmissive electrode, a layer of an electro-optic medium capable of being switched between an open state and a closed state upon application of an electric field, a second light-transmissive electrode, and a layer having a plurality of retro-reflectors.

Abstract: The present invention provides for a method of rendering an image on a reflective display wherein each pixel is capable of rendering a limited number of colors, each of which is rendered by predetermined set of waveforms stored in a waveform lookup table. Furthermore, the present invention provides for a method for rendering an image using such colors, having been chosen for optimal color rendition. This invention further provides for rendering a color image formed from a plurality of pixels on a reflective display wherein each pixel has a color selected from the group consisting of at least: red, green, blue, cyan, magenta, yellow, black and white.

Abstract: An electrowetting device according to the present disclosure includes: an electrode substrate having a first substrate, a plurality of first electrodes formed on the first substrate, a dielectric layer formed on the plurality of first electrodes, and a first hydrophobic layer formed on the dielectric layer; a counter substrate disposed opposite the electrode substrate with a predetermined gap interposed therebetween, and having a second substrate, a second electrode formed on the second substrate, and a second hydrophobic layer formed on the second electrode; and a sealing member located in an outer peripheral region of the electrode substrate, and the sealing member attaching the electrode substrate and the counter substrate together. The gap between the first and second hydrophobic layers is defined by the sealing member, and a portion of the sealing member forms an injection hole to allow a droplet to be injected into the gap.

Abstract: Methods of making a top-plane connection in an electro-optic device and devices including such connections. A through hole is created through a rear substrate to provide a connection between a conductor coupled to the rear substrate and a light-transmissive conductive layer coupled to a top transparent substrate. The hole is subsequently filled with a top-plane connection material that provides an electrical connection between the conductor and the light-transmissive conductive layer, but does not provide an electrical connection between a separate rear conductive layer and the light-transmissive conductor.

Abstract: OCT-display for vitreoretinal surgery may be foot pedal controlled. Specifically, the tissue layers displayed in an en face image generated from OCT scanning may be navigated downward or upward based on user input supplied by a foot pedal device.

Abstract: The embodiments herein relate to electrochromic stacks, electrochromic devices, and methods and apparatus for making such stacks and devices. In various embodiments, an anodically coloring layer in an electrochromic stack or device is fabricated to include a heterogeneous structure, for example a heterogeneous composition and/or morphology. Such heterogeneous anodically coloring layers can be used to better tune the properties of a device.

Abstract: The present invention is directed to an electrophoretic display device comprising microcells filled with an electrophoretic fluid and a dielectric layer, which comprises a first type of magnetic filler material, a second type of nonmagnetic filler material, and a polymeric material. The first and second types of filler material physically interact with each other and they are fixed and aligned in the dielectric adhesive layer in a direction perpendicular to a plane of the dielectric layer. The dielectric layer exhibits anisotropic conductivity having higher conductivity in the z direction compared to the other two orthogonal directions.

Abstract: A pulsed light generation device includes: an optical coupler having four input/output ports including a first port, a second port, a third port and a fourth port; a connection optical path that connects the third port with the fourth port; and a phase modulation element disposed in the connection optical path. The optical coupler branches pulsed light input to the first port and outputs the branched input pulsed light as first-direction pulsed light and second-direction pulsed light to the third port and to the fourth port. The modulation element applies phase modulation to either one of the first-direction pulsed light and the second-direction pulsed light, thereby outputs output pulsed lights through the first port and the second port, wherein a waveform of one of the pulsed lights output through the first port is different from a waveform of the other of the output pulsed lights output through the second port.

Abstract: A driving circuit includes a first signal-input terminal, a second signal-input terminal, a third signal-input terminal, a fourth signal-input terminal, a signal-output terminal, and a voltage-boosting unit including a first module, a second module, a third module, and a first capacitor. The first module transmits the signal at the third signal-input terminal to a first terminal of the first capacitor during a first time period, and blocks signal transmission during a second time period. During the first time period and the second time period, the second module transmits the signal at the third signal-input terminal to the third module to allow the signal at the fourth signal-input terminal to be transmitted to a second terminal of the first capacitor. During a third time period, the second module and the third module both block signal transmission. The first terminal of the first capacitor is connected to the signal-output terminal for output.

Abstract: An electronic paper display screen and a manufacturing method thereof belongs to the field of electronic display. The electronic paper display screen of the present invention eliminates the conventional adhesive layer, and the electrophoretic display layer and the pixel electrode are bonded without the adhesive layer. The electronic paper display screen of the present invention has a simplified production process, a simple display structure, a uniform and controllable thickness of the electrophoretic display layer, and improved display effects. The traditional adhesive layer is removed from the structure of the electronic paper display screen. The present invention is applicable to the electronic paper with a microcapsule or micro-cup structure, wherein the microcapsule or the micro-cup can include two, three or more kinds of electrophoretic particles having different photoelectric properties.

Abstract: A magnetic eraser can be used for erasing markings drawn on a magnetic sheet. The magnetic eraser includes a housing with a magnet placed in the housing. The magnetic eraser also includes a first magnetic body placed between a first surface of the housing and the magnet. The first surface of the housing can provide a first erasing surface.

Abstract: A system including an optical engine. In some embodiments, the system includes an integrated circuit in a first-level package, and the system includes the optical engine, in the first-level package, and the optical engine includes an electro-optical chip.

Abstract: Bus bar configurations and fabrication methods for non-rectangular shaped (e.g., triangular, trapezoidal, circular, pentagonal, hexagonal, arched, etc.) optical devices.

Abstract: A housing assembly for mounting a first lens and a second lens includes a first lens holder. The first lens holder includes a ring-shaped structure configured to mount the first lens. The housing assembly also includes a second lens holder including a cup-shaped structure. The cup-shaped structure includes an upper portion configured to mount the first lens holder, and a lower portion configured to mount the second lens.

Abstract: The present application discloses an image formation apparatus that can transfer an image into electronic paper using an electronic photography method, and a printing control method for the image formation apparatus. The present electronic paper comprises an electrophoresis layer for displaying an image using an electrophoresis method, a conductive layer, and a film layer for transmitting an image; and the image formation apparatus comprises a communication interface for receiving printing data, an image formation unit for transferring an image corresponding to the printing data, and a processor for controlling the image formation unit.

Abstract: The invention relates to a method for evaluating at least one view image (M) in order to image at least one viewpoint, which is provided in relation to at least one scene shot (S) of a scene (12), and/or at least one view direction of at least one person (10), said view direction being provided in relation to the at least one scene shot (S), towards a reference, the content of which matches at least one part of the scene (12). The at least one scene shot (S) is provided with the at least one assigned viewpoint (B) and/or the at least one assigned view direction, and the reference (R) is provided together with a result (B?) of the at least one view image (M). Furthermore, the at least one view image (M) is evaluated by means of at least one predefined quality measurement (GM), and the result of the evaluation is provided.

Abstract: A spatial light modulator cell and arrays of spatial light modulator cells are disclosed. The spatial light modulator cells can comprise a phase change material (PCM) having a first side and a second side; an optical reflector configured to reflect an optical beam passing from the first side to the second side; and a PCM heater thermal conductively coupled to the PCM, wherein thermal modulation of the PCM modulates a phase of the PCM which varies light transmission through the PCM. Methods of making spatial light modulator cells and arrays are also disclosed.