Abstract:
According to embodiments, an image bitmap is modified to compensate for non-idealities in actual beam locations delivered by a scanned beam or laser scanner system compared to desired pixel locations. For a non-ideal actual beam location, pixel values for neighboring desired pixel locations may be used to generate a compensated actual pixel value. According to some embodiments, the compensated actual pixel value may be a weighted average of the neighboring desired pixel values. The weighting factors may be determined from the actual beam location compared to the desired respective pixel locations. The system may compensate for various distortions including optical aberrations and scanning distortion.
Abstract:
Embodiments including methods and apparatuses for displaying an image including generating a first modulated and scanned excitation beam; generating a second modulated and scanned excitation beam; impinging the first and second modulated and scanned excitation beams onto a photoluminescent screen; and responsively converting the wavelengths of the first and second excitation beams into different corresponding third and fourth visible wavelength photoluminescent emissions, wherein the first modulated and scanned excitation beam is substantially prevented from stimulating photoluminescent emissions at the fourth visible wavelength and the second modulated and scanned excitation beam is substantially prevented from stimulating photoluminescent emissions at the third visible wavelength.
Abstract:
A scanned beam display is operable to compensate for variations in apparent pixel brightness arising from variations in beam scanning velocity and/or pixel dwell times. A compensation circuit modifies pixel values according to their scanning velocity and/or dwell time.
Abstract:
A display system includes an image generator that generates an image and a control circuit that reduces or eliminates the viewer's perception of a visual artifact when the viewer's gaze shifts with respect to the image. For example, such a display system may generate a fill-in light to reduce or eliminate the viewer's perception of flicker or other visual artifacts when the viewer shifts his gaze with respect to an exit pupil through which the generated image is viewed. The system may match the fill-in light's brightness, color, or both the brightness and color to the brightness and/or color of the image.
Abstract:
A photoluminescent light source includes an excitation light source operable to emit light at a primary wavelength and a photoluminescent material optically coupled to the excitation light source. The photoluminescent material has a characteristic to emit light at a secondary wavelength in response to absorbing light at the primary wavelength. Scanned beam systems employing photoluminescent light sources and methods of using the photoluminescent light sources are also disclosed.
Abstract:
A device for image transmission includes a first scanner at a first location and a second scanner at a second location, with an optical fiber linking the scanners. The first scanner scans the first location and couples light from the first location to the optical fiber. The fiber transmits the light to the second location where the second scanner constructs an image of the second location from the light. The two scanners are synchronized so that the constructed image corresponds directly to the scanned scene. The second scanner may be part of a retinal scanner, so that the image is formed directly on the user's retina. In another embodiment, the each of the scanners acts as a transceiver so that imaging is bi-directional.
Abstract:
A scanning endoscope, amenable to both rigid and flexible forms, scans a beam of light across a field-of-view, collects light scattered from the scanned beam, detects the scattered light, and produces an image. The endoscope may comprise one or more bodies housing a controller, light sources, and detectors; and a separable tip housing the scanning mechanism. The light sources may include laser emitters that combine their outputs into a polychromatic beam. Light may be emitted in ultraviolet or infrared wavelengths to produce a hyperspectral image. The detectors may be housed distally or at a proximal location with gathered light being transmitted thereto via optical fibers. A plurality of scanning elements may be combined to produce a stereoscopic image or other imaging modalities. The endoscope may include a lubricant delivery system to ease passage through body cavities and reduce trauma to the patient. The imaging components are especially compact, being comprised in some embodiments of a MEMS scanner and optical fibers, lending themselves to interstitial placement between other tip features such as working channels, irrigation ports, etc.
Abstract:
Embodiments of methods and systems for hair treatment are disclosed. According to various embodiments, light is used to shave, trim, or otherwise modify hair shafts.
Abstract:
A classification method and system for possible content alteration of a media work may include criteria regarding content that is feasible for alteration. Such criteria may be maintained in records that are accessible to an interested party. Some embodiments may include a record of primary authorization rights applicable to a possible content alteration. A further embodiment feature may include a record of secondary authorization rights applicable to substitute altered content incorporated in a derivative version. Various systems and methods may be used to incorporate substitute content in a derivative version of the media work in compliance with applicable modification guidelines. In some instances substitute promotional content may have some association with a real-world topic or real-world entity or real-world person.