摘要:
A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in monochrome, color or gray scale. Edge-emitting light emitting diodes are employed, together with mutually orthogonal cylindrical lenses, to render the module with a short, slim form factor.
摘要:
A light scanning arrangement includes a frame or a base plate directly moved by an inertial drive in order to oscillate a scan element supported by a hinge on the frame at high scan rates and with minimal electrical power consumption.
摘要:
An apparatus and actuator assembly for and method of projecting an image on a viewing surface either attached to the apparatus, or on a distant surface, includes sweeping a light beam along a plurality of scan lines that extend over the viewing surface, and selectively illuminating parts of the image at selected positions of the light beam on the scan lines. The viewing surface can be selected by the user by moving a panel on the housing, thereby allowing the user either option for display.
摘要:
The present invention is a guidance apparatus for movable toy vehicles that includes a track, or roadway, on which the toy vehicles move. The truck has an intersection. The intersection has a magnetic guidance mechanism for steering the toy vehicles in alternate directions through the intersection. An intersection magnetic sensing mechanism, i.e., electromagnets at the intersection and magnets in the vehicles, stops the vehicles prior to entering the intersection. Additionally, the vehicles stopped at the intersection can be actuated by a timing mechanism after passage of a predetermined time period. Furthermore, the vehicles stopped at the intersection can be actuated only after a mechanism for sensing vehicle presence in the intersection senses no vehicles in the intersection.
摘要:
A toy vehicular drive apparatus includes a first roadway having an electrically conductive underside and a second roadway having an electrically conductive top and being under the first roadway. A subsurface powered vehicle is movable on the second roadway and has electrically conductive elements in contact with the electrically conductive underside of the first roadway and in contact with the electrically conductive top of the second roadway. A power source connected to the first roadway and the second roadway electrically energizes the first roadway and the second roadway to provide power to the powered subsurface vehicle. The toy vehicular drive apparatus also includes a surface vehicle movable on the top of the first roadway. A magnet on the surface vehicle and a magnet on the powered subsurface vehicle provide interconnection of the surface vehicle and the powered subsurface vehicle to cause movement of the surface vehicle in response to movement of the powered subsurface vehicle.
摘要:
A laser based vascular illumination system utilizing a FPGA for detecting vascular positions, processing an image of such vasculature positions, and projecting the image thereof onto the body of a patient.
摘要:
A laser based vascular illumination system utilizing a FPGA for detecting vascular positions, processing an image of such vasculature positions, and projecting the image thereof onto the body of a patient.
摘要:
A scan mirror is held steady during a holding period interval between forward and return scans in a lightweight, compact image projection module operative for causing selected pixels in a raster pattern to be illuminated to project an image in color.
摘要:
A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in monochrome, color or gray scale. Edge-emitting light emitting diodes are employed, together with mutually orthogonal cylindrical lenses, to render the module with a short, slim form factor.
摘要:
A portable electo-optical scanner for reading a target bar code having a plurality of bar code elements. The portable scanner includes: a housing supporting a scanning module and an exit window. The scanning module scans the target bar code with a scanning beam and collecting reflected light returning from the bar code. The scanning module includes: a beam source emitting a scanning beam; photodetector circuitry; and a retro-reflective oscillating mirror including a light collection mirror and an integral scanning or beam directing mirror. The scanning mirror is positioned to intersect the scanning beam and direct the scanning beam through the exit window. Oscillation of the oscillating mirror causes the scanning beam to be repetitively scanned along a scanning direction across the target bar code. The light collection mirror has a field of view that follows the scanning beam. The light collection mirror receives reflected light from the target bar code and directs the reflected light toward the photodetector circuitry. The exit window comprises a lens having a positive optical power with respect to the scanning direction.