Patent application number | Description | Published |
20090002794 | RECEIVER APERTURE BROADENING FOR SCANNED BEAM IMAGING - A scanning beam assembly includes a beam generator to generate a beam of radiation; at least one reflector configured to deflect the beam across a field of view; and a plurality of multi-mode optical fibers for receiving radiation reflected from the field of view, wherein the optical fibers have end surfaces that face in at least two different directions, or wherein the optical fibers are configured to receive scattered radiation from an angular field of view larger than that determined by their individual numerical apertures. | 01-01-2009 |
20090027748 | MEMS Oscillator Having A Combined Drive Coil - A MEMS oscillator, such as a MEMS scanner, has an improved and simplified drive scheme and structure. Drive impulses may be transmitted to an oscillating mass via torque through the support arms. For multi-axis oscillators drive signals for two or more axes may be superimposed by a driver circuit and transmitted to the MEMS oscillator. The oscillator responds in each axis according to its resonance frequency in that axis. The oscillator may be driven resonantly in some or all axes. Improved load distribution results in reduced deformation. A simplified structure offers multi-axis oscillation using a single moving body. Another structure directly drives a plurality of moving bodies. Another structure eliminates actuators from one or more moving bodies, those bodies being driven by their support arms. | 01-29-2009 |
20090134319 | Scanned Beam Display and Method of Operating - A MEMS oscillator, such as a MEMS scanner, has an improved and simplified drive scheme and structure. Drive impulses may be transmitted to an oscillating mass via torque through the support arms. For multi-axis oscillators drive signals for two or more axes may be superimposed by a driver circuit and transmitted to the MEMS oscillator. The oscillator responds in each axis according to its resonance frequency in that axis. The oscillator may be driven resonantly in some or all axes. Improved load distribution results in reduced deformation. A simplified structure offers multi-axis oscillation using a single moving body. Another structure directly drives a plurality of moving bodies. Another structure eliminates actuators from one or more moving bodies, those bodies being driven by their support arms. | 05-28-2009 |
20090154886 | Multi-zone scanned-beam imager - Embodiments relate to scanning a plurality of light beams across a corresponding plurality of zones in a field of view and collecting scattered light to enable an image of the field of view to be formed that spans the plurality of zones. According to an embodiment, a scanning endoscope tip may include structures configured to launch the plurality of scanned beams toward respective zones and receive separate light scattered from the respective beams impinging upon the respective zones. According to an embodiment, an image processor is operable to receive detection signals from corresponding light detectors and reconstruct an image of the field of view spanning the plurality of zones. | 06-18-2009 |
20090213040 | Apparatus and Method for Interpolating the Intensities of Scanned Pixels from Source Pixels - A scan assembly of an image generator sweeps an image beam in a first dimension at a first rate and bi-directionally in a second dimension at a slower rate. Sweeping the beam bi-directionally in the vertical dimension (generally the dimension of the lower sweep rate) can reduce the scanning power by eliminating the flyback period, and, where the scan assembly includes a mechanical reflector, can reduce the error in the beam position without a feedback loop by reducing the number of harmonics in the vertical sweep function. Furthermore, because the image beam is “on” longer due to the elimination of the flyback period, the scanned image is often brighter for a given beam intensity. The scan assembly may also sweep the image beam non-linearly in the vertical dimension, and this sweep may be bi-directional or uni-directional. Sweeping the beam non-linearly can also reduce the error in the beam position by reducing the number of harmonics in the vertical sweep function. | 08-27-2009 |
20100277890 | DISPLAY SCREEN COMPRISING PHOTOLUMINESCENT MATERIAL - Embodiments are disclosed herein related to the use of photoluminescent material to improve the presentation of images being displayed by a user interface device. For example, one embodiment provides a user interface device including a cuplet microstructure sheet that includes a plurality of cuplets. Each cuplet forms a light input opening and a light output opening. The light output opening has a diameter that is larger than a diameter of the light input opening. The user interface device further includes a photoluminescent material that at least partially fills one or more cuplets of the plurality of cuplets. The user interface device further includes a light source configured to generate light that is directed to one or more selected cuplets of the plurality of cuplets. | 11-04-2010 |
20110267501 | SCANNED BEAM DISPLAY AND IMAGE CAPTURE - A method for displaying or capturing an image comprises directing an illumination beam onto a mirror of a highly resonant, mirror-mount system and applying a drive signal to a transducer to deflect the mirror. In this method, the drive signal has a pulse frequency approaching a resonance frequency of the mirror-mount system. The method further comprises reflecting the illumination beam off the mirror so that the illumination beam scans through an area where the image is to be displayed or captured, and, addressing each pixel of the image in synchronicity with the drive signal to display or capture the image. | 11-03-2011 |
20130050642 | ALIGNING INTER-PUPILLARY DISTANCE IN A NEAR-EYE DISPLAY SYSTEM - The technology provides for automatic alignment of a see-through near-eye, mixed reality device with an inter-pupillary distance (IPD). A determination is made as to whether a see-through, near-eye, mixed reality display device is aligned with an IPD of a user. If the display device is not aligned with the IPD, the display device is automatically adjusted. In some examples, the alignment determination is based on determinations of whether an optical axis of each display optical system positioned to be seen through by a respective eye is aligned with a pupil of the respective eye in accordance with an alignment criteria. The pupil alignment may be determined based on an arrangement of gaze detection elements for each display optical system including at least one sensor for capturing data of the respective eye and the captured data. The captured data may be image data, image and glint data, and glint data only. | 02-28-2013 |
20130050833 | ADJUSTMENT OF A MIXED REALITY DISPLAY FOR INTER-PUPILLARY DISTANCE ALIGNMENT - The technology provides for adjusting a see-through, near-eye, mixed reality display device for alignment with an inter-pupillary distance (IPD) of a user by different examples of display adjustment mechanisms. The see-through, near-eye, mixed reality system includes for each eye a display optical system having an optical axis. Each display optical system is positioned to be seen through by a respective eye, and is supported on a respective movable support structure. A display adjustment mechanism attached to the display device also connects with each movable support structure for moving the structure. A determination is automatically made as to whether the display device is aligned with an IPD of a user. If not aligned, one or more adjustment values for a position of at least one of the display optical systems is automatically determined. The display adjustment mechanism moves the at least one display optical system in accordance with the adjustment values. | 02-28-2013 |
20130169683 | HEAD MOUNTED DISPLAY WITH IRIS SCAN PROFILING - A see-through head mounted-display and method for operating the display to optimize performance of the display by referencing a user profile automatically. The identity of the user is determined by performing an iris scan and recognition of a user enabling user profile information to be retrieved and used to enhance the user's experience with the see through head mounted display. The user profile may contain user preferences regarding services providing augmented reality images to the see-through head-mounted display, as well as display adjustment information optimizing the position of display elements in the see-though head-mounted display. | 07-04-2013 |
20130286178 | GAZE DETECTION IN A SEE-THROUGH, NEAR-EYE, MIXED REALITY DISPLAY - The technology provides various embodiments for gaze determination within a see-through, near-eye, mixed reality display device. In some embodiments, the boundaries of a gaze detection coordinate system can be determined from a spatial relationship between a user eye and gaze detection elements such as illuminators and at least one light sensor positioned on a support structure such as an eyeglasses frame. The gaze detection coordinate system allows for determination of a gaze vector from each eye based on data representing glints on the user eye, or a combination of image and glint data. A point of gaze may be determined in a three-dimensional user field of view including real and virtual objects. The spatial relationship between the gaze detection elements and the eye may be checked and may trigger a re-calibration of training data sets if the boundaries of the gaze detection coordinate system have changed. | 10-31-2013 |
20130300653 | GAZE DETECTION IN A SEE-THROUGH, NEAR-EYE, MIXED REALITY DISPLAY - The technology provides various embodiments for gaze determination within a see-through, near-eye, mixed reality display device. In some embodiments, the boundaries of a gaze detection coordinate system can be determined from a spatial relationship between a user eye and gaze detection elements such as illuminators and at least one light sensor positioned on a support structure such as an eyeglasses frame. The gaze detection coordinate system allows for determination of a gaze vector from each eye based on data representing glints on the user eye, or a combination of image and glint data. A point of gaze may be determined in a three-dimensional user field of view including real and virtual objects. The spatial relationship between the gaze detection elements and the eye may be checked and may trigger a re-calibration of training data sets if the boundaries of the gaze detection coordinate system have changed. | 11-14-2013 |