Abstract: The present disclosure generally relates to a LPD system having a plurality of detectors for detecting light reflected from the back surface of the screen. The detectors are positioned to detect light from one or more portions of the screen that are not directly in front of the detector.

Abstract: The present disclosure generally relates to a LPD system having a plurality of detectors for detecting light reflected from the back surface of the screen. The detectors are positioned to detect light from one or more portions of the screen that are not directly in front of the detector.

Abstract: The present disclosure generally relates to a LPD system having a plurality of detectors for detecting light reflected from the back surface of the screen. The detectors are positioned to detect light from one or more portions of the screen that are not directly in front of the detector.

Abstract: The present disclosure generally relates to a LPD system having a plurality of detectors for detecting light reflected from the back surface of the screen. The detectors are positioned to detect light from one or more portions of the screen that are not directly in front of the detector.

Abstract: The present disclosure generally relates to a LPD system having a plurality of detectors for detecting light reflected from the back surface of the screen. The detectors are positioned to detect light from one or more portions of the screen that are not directly in front of the detector.

Abstract: The present disclosure generally relates to a LPD system having a plurality of detectors for detecting light reflected from the back surface of the screen. The detectors are positioned to detect light from one or more portions of the screen that are not directly in front of the detector.

Abstract: Scanning beam display systems using fluorescent screens and various servo feedback control mechanisms to control display imaging qualities.

Abstract: Methods and systems for improving imaging quality and power efficiency of scanning beam display systems using fluorescent screens are disclosed. In various embodiments, beam shaping mechanisms for maximizing overlap between the beam cross-section and the florescent element corresponding to each color sub-pixel of the screen, as well as pulse width and timing adjustments, are introduced to reduce imaging noise and improve power efficiency of the display system.

Abstract: Methods and systems for improving imaging quality and power efficiency of scanning beam display systems using fluorescent screens are disclosed. In various embodiments, beam shaping mechanisms for maximizing overlap between the beam cross-section and the florescent element corresponding to each color sub-pixel of the screen, as well as pulse width and timing adjustments, are introduced to reduce imaging noise and improve power efficiency of the display system.

Abstract: Scanning beam display systems using fluorescent screens and various servo feedback control mechanisms to control display imaging qualities, including techniques and mechanism for measuring and correcting pyramidal errors of a polygon scanner.

Abstract: Scanning beam display systems using fluorescent screens and various servo feedback control mechanisms to control display imaging qualities.

Abstract: Scanning beam display systems using fluorescent screens and various servo feedback control mechanisms to control display imaging qualities, including techniques and mechanism for measuring and correcting pyramidal errors of a polygon scanner.

Abstract: Techniques and systems for controlling an optical switch array based on local and global optical monitoring and feedback controls. Each optical switch element includes a local optical monitoring mechanism to form a local feedback control to lock the switch element at a desired orientation. The global optical monitoring is used to adjust at least one switch element in the path of the signal beam to maintain an overall alignment.

Abstract: A driver in a far-field magneto-optical (“MO”) system has a read/write head that includes an objective lens for focusing a laser beam onto an MO disk. The objective lens is housed in an objective lens holder. A magnetic biasing coil is mounted to the bottom of the objective lens holder, between the objective lens and the MO disk. The coil includes an aperture to allow the laser beam to pass through the coil and onto a surface of the disk. The objective lens holder is moved up and down as the disk spins by an actuator to maintain the laser beam in focus on the MO disk surface. This maintains the objective lens and the coil precisely at predetermined distances from the MO disk surface, despite irregularities in the disk and disk wobble.

Abstract: A laser driver circuit for a light source in an optical recording system to maintain the read current at a substantially constant level. This circuit can reduce a recovery transient time for a transition from the write mode to the read mode.

Abstract: Controllable optical switches in response to feedback signals from optical position sensors that measure switch orientations. The optical position sensors may include local sensors that monitor and measure orientations of individual switches and global sensors that monitor and measure overall alignment of signal beams. Such switches may be used to form non-blocking switching arrays.

Abstract: Techniques and systems for controlling an optical switch array based on local and global optical monitoring and feedback controls. Each optical switch element includes a local optical monitoring mechanism to form a local feedback control to lock the switch element at a desired orientation. The global optical monitoring is used to adjust at least one switch element in the path of the signal beam to maintain an overall alignment.

Abstract: An optical position detector which has adjacent detector cells connected to each other in a zig-zag pattern offers a wider dynamic range than a detector with a vertical separation line during transition between a read laser power and a write laser power. This allows use of a fast response bi-cell in place of a slower position sensing device (PSD). The optical position detector has detector cells coupled to each other in a zig-zag pattern. Each detector cell produces a signal when a light beam is focused onto the cell to indicate a location of the light beam relative to the cell.

Abstract: A driver in a far-field magneto-optical (“MO”) system has a read/write head that includes an objective lens for focusing a laser beam onto an MO disk. The objective lens is housed in an objective lens holder. A magnetic biasing coil is mounted to the bottom of the objective lens holder, between the objective lens and the MO disk. The coil includes an aperture to allow the laser beam to pass through the coil and onto a surface of the disk. The objective lens holder is moved up and down as the disk spins by an actuator to maintain the laser beam in focus on the MO disk surface. This maintains the objective lens and the coil precisely at predetermined distances from the MO disk surface, despite irregularities in the disk and disk wobble.

Abstract: A system for generating a magnetic field for magneto-optic recording that includes a near-field lens, a coil etched or plated into the bottom surface of the lens forming a coil layer, an insulating layer coupled to the coil layer, and a transparent conducting layer coupled to the insulating layer. The inner turn end of the coil is connected to a selected contact point on the transparent conducting layer through an opening in the insulating layer. The insulating layer insulates the coil layer from the transparent conducting layer.