Abstract: Occlusion crossing devices. An outer shaft can include a distal opening that is angled relative to a central axis of the outer shaft to form a tapered distal end. An inner shaft can be configured to translate within the outer shaft and to rotate with respect to the outer shaft. The inner shaft can include a distal end having cutting edges. The inner shaft can include an imaging window on a lateral side of the inner shaft proximal to the cutting edges. When at last a portion of the cutting edges are fully extended distally through the distal opening of the outer shaft, the tapered distal end of the outer shaft can be arranged to occlude the imaging window at a defined rotational position as the inner shaft is rotated relative to the outer shaft to provide a registration mark for imaging.

Abstract: Occlusion crossing devices and systems. An inner shaft may be configured to rotate and extend within an outer shaft. The inner and outer shafts may include engagement regions to limit distal movement of the inner shaft within the outer shaft. The outer shaft may include a distal opening that is angled to form a tapered distal end. The inner shaft may include a distal end having a fluted tip with cutting edges that are configured to extend through the distal opening of the outer shaft. The inner shaft may include an imaging window. When the cutting edges are fully extended distally through the distal opening of the outer shaft, the tapered distal end of the outer shaft may be configured to occlude the imaging window at a defined rotational position as the inner shaft is rotated relative to the outer shaft to provide a registration mark for imaging.

Abstract: A catheter system includes a catheter body that includes an outer shaft and a rotatable inner shaft. The inner shaft can include one or more imaging sensors for collecting images outside of the catheter body. The catheter body can include one or more windows for providing imaging access for the imaging sensor(s) outside of the catheter body. A distal portion of the catheter body can include a selective bending feature for bending the distal portion in a defined direction. The catheter body can include one or more markers that the imaging sensor can detect to determine a relative orientation of the catheter body.

Abstract: An autostereoscopic display configured to display a three dimensional (3D) image of a scene. The autostereoscopic display uses a single projector to project a plurality of projected images into a mirror arrangement fixedly positioned in the projection field of the single projector to reflect the plurality of projected images onto the holographic diffuser from distinct directions such that a 3D image is perceived by a person viewing the holographic diffuser.

Abstract: A volumetric display for displaying three dimensional (3D) images. The volumetric display uses a flat panel display to output light into a volumetric diffuser, and an array of electrowetting lenses between the flat panel display and the volumetric diffuser to direct light emitted by one or more of the pixels of the flat panel display toward a location within the display volume such that the location is illuminated brighter than other locations within the display volume.

Abstract: A sensor configured to detect a stress wave propagating through a vehicle frame member caused by a vehicle collision is provided. The sensor includes a sensor body configured to be rigidly coupled to the vehicle frame member, a first strain sensing device and a second strain sensing device attached to the sensor body. The sensor body is configured to exhibit stress in response to transverse and torsional stress wave propagating along the vehicle frame member. The first strain sensing device generates a first signal indicative of stress in the sensor body and the second strain sensing device generates a second signal indicative of stress in the sensor body. A first end portion of the sensor body is characterized as trapezoidal prism shaped and a second end portion of the sensor body is characterized as trapezoidal prism shaped.

Abstract: A volumetric display for displaying three dimensional (3D) images. The volumetric display uses a flat panel display to output light into a volumetric diffuser, and an array of electrowetting lenses between the flat panel display and the volumetric diffuser to direct light emitted by one or more of the pixels of the flat panel display toward a location within the display volume such that the location is illuminated brighter than other locations within the display volume.

Abstract: An autostereoscopic display configured to display a three dimensional (3D) image of a scene. The autostereoscopic display uses a single projector to project a plurality of projected images into a mirror arrangement fixedly positioned in the projection field of the single projector to reflect the plurality of projected images onto the holographic diffuser from distinct directions such that a 3D image is perceived by a person viewing the holographic diffuser.

Abstract: A sensor configured to detect a stress wave propagating through a vehicle frame member caused by a vehicle collision is provided. The sensor includes a sensor body configured to be rigidly coupled to the vehicle frame member, a first strain sensing device and a second strain sensing device attached to the sensor body. The sensor body is configured to exhibit stress in response to transverse and torsional stress wave propagating along the vehicle frame member. The first strain sensing device generates a first signal indicative of stress in the sensor body and the second strain sensing device generates a second signal indicative of stress in the sensor body. A first end portion of the sensor body is characterized as trapezoidal prism shaped and a second end portion of the sensor body is characterized as trapezoidal prism shaped.

Abstract: A detection system and method for detecting an object adjacent a vehicle is provided, wherein the detection system includes a plurality of thermopile sensors and a processor. The plurality of thermopile sensors include a first thermopile sensor and second thermopile sensor. The detection system further includes a processor in communicative connection with the plurality of thermopile sensors, the processor being adapted to receive a signal from a vehicle component as to an operating condition of the vehicle, wherein the processor is configured to command at least one of the first and second thermopile sensors to auto-align, and determine a detection of an object that is adjacent to the vehicle as a function one of a plurality of detection modes, the plurality of detection modes being based upon movement of the vehicle with respect to the vehicle's normal operating position.

Abstract: An optoelectronic semiconductor device in the form of an LED comprises a silicon p-n junction having a photoactive region containing beta-iron disilicide (&bgr;-FeSi2). The LED produces electroluminescence at a wavelength of about 1.5 &mgr;m.