Abstract: Described herein are methods and display systems for enhanced eye tracking for display systems, such as augmented or virtual reality display systems. The display systems may include: a light source configured to output light and a moveable diffractive grating configured to reflect light from the light source, the reflected light forming a light pattern on the eye of the user; a plurality of light detectors to detect light reflected from the eye; and one or more processors. The display system changes the orientation of the diffractive grating, such that the light pattern reflected from the diffractive grating is scanned along an axis across the eye. Light intensity patterns are obtained via the light detectors, with a light intensity pattern representing a light detector signal obtained by detecting light reflected off of the eye as the light pattern is scanned across the eye.

Abstract: According to the present invention there is provided methods and devices for detecting open and/or short circuits in MEMS micro-mirror devices, which use relative comparisons of voltage levels within the MEMS micro-mirror devices for detecting the occurrence of open and/or short circuits.

Abstract: Described herein are methods and display systems for enhanced eye tracking for display systems, such as augmented or virtual reality display systems. The display systems may include: a light source configured to output light and a moveable diffractive grating configured to reflect light from the light source, the reflected light forming a light pattern on the eye of the user; a plurality of light detectors to detect light reflected from the eye; and one or more processors. The display system changes the orientation of the diffractive grating, such that the light pattern reflected from the diffractive grating is scanned along an axis across the eye. Light intensity patterns are obtained via the light detectors, with a light intensity pattern representing a light detector signal obtained by detecting light reflected off of the eye as the light pattern is scanned across the eye.

Abstract: According to the present invention there is provided methods and devices for detecting open and/or short circuits in MEMS micro-mirror devices, which use relative comparisons of voltage levels within the MEMS micro-mirror devices for detecting the occurrence of open and/or short circuits.

Abstract: According to the present invention there is provided methods and devices for detecting open and/or short circuits in MEMS micro-mirror devices, which use relative comparisons of voltage levels within the MEMS micro-mirror devices for detecting the occurrence of open and/or short circuits.

Abstract: According to the present invention there is provided methods and devices for detecting open and/or short circuits in MEMS micro-mirror devices, which use relative comparisons of voltage levels within the MEMS micro-mirror devices for detecting the occurrence of open and/or short circuits.

Abstract: A device comprising, a mirror which is configured to oscillate in response to an oscillation signal, wherein the device is configured such that oscillation of the mirror will induce a signal; and a circuit in operable cooperation with the mirror such that an induced signal can be measured by the circuit and wherein the circuit is configured to provide an oscillation signal proportional to the measured induced signal; wherein the device is configured such that the mirror can receive the oscillation signal so that the oscillation signal is filtered due to oscillation limitations of mirror, to provide a filtered signal.

Abstract: A device comprising, a mirror which is configured to oscillate in response to an oscillation signal, wherein the device is configured such that oscillation of the mirror will induce a signal; and a circuit in operable cooperation with the mirror such that an induced signal can be measured by the circuit and wherein the circuit is configured to provide an oscillation signal proportional to the measured induced signal; wherein the device is configured such that the mirror can receive the oscillation signal so that the oscillation signal is filtered due to oscillation limitations of mirror, to provide a filtered signal.

Abstract: A device comprising, a mirror which is configured to oscillate in response to an oscillation signal, wherein the device is configured such that oscillation of the mirror will induce a signal; and a circuit in operable cooperation with the mirror such that an induced signal can be measured by the circuit and wherein the circuit is configured to provide an oscillation signal proportional to the measured induced signal; wherein the device is configured such that the mirror can receive the oscillation signal so that the oscillation signal is filtered due to oscillation limitations of mirror, to provide a filtered signal.