摘要:
A method and apparatus are provided to controllably reduce power of a laser projection display (LPD). Light is scanned from a laser onto a viewing surface to produce an image thereon, and power used by the laser is reduced used while scanning at least a portion of the viewing surface.
摘要:
A method and apparatus are provided to controllably compensate for distortions in an image produced by an LPD, where the distortion arises from the shape and/or angle of the viewing surface relative to the LPD. For example, the LPD can determine the angle of the viewing surface relative to the LPD and then adjust the horizontal and vertical scan mechanisms to return the image to its original configuration, such as rectangular.
摘要:
An apparatus is provided for controlling a laser projection device (LPD). The apparatus is comprised of a liquid crystal display controller, a laser projection display controller, and a laser projection display engine. The liquid crystal display controller is adapted to receive video signals indicative of a visual display and convert the video signals to control signals suitable for controlling a liquid crystal display panel. The laser projection device controller is adapted to receive the control signals from the liquid crystal display controller and use the control signals to control a laser projection display. The laser projection device engine is adapted to display an image under the control of the laser projection device controller.
摘要:
An image projection system projects an image on a projection screen having a phosphor for converting incident violet light into green light which, together with red and blue light, creates the image in full color. The screen includes an apertured mask having apertures filled with the phosphor, or a phosphor plate in contact with the mask and having lenslets extending through and past the apertures.
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 color.
摘要:
Several optical systems for imaging engines of imaging optical code readers are disclosed. Each optical system includes the abilities to change the depth of field of the imaging field and to adjust a focus quality of the imaging field. The disclosed structures for changing the depth of field of the disclosed optical systems allow for the automatic or manual selection of one of a plurality of depths of field.
摘要:
A method and apparatus are provided to controllably compensate for distortions in an image produced by an LPD, where the distortion arises from the shape and/or angle of the viewing surface relative to the LPD. For example, the LPD can determine the angle of the viewing surface relative to the LPD and then adjust the horizontal and vertical scan mechanisms to return the image to its original configuration, such as rectangular.
摘要:
A laser projection device suitable for displaying full color images is disclosed. The LPD includes a variety of techniques for modulating laser beams produced by one or more lasers with image data to controllably produce the image using a modified raster scan.
摘要:
A method and apparatus are provided to controllably reduce power of a laser projection display (LPD). Light is scanned from a laser onto a viewing surface to produce an image thereon, and power used by the laser is reduced used while scanning at least a portion of the viewing surface.
摘要:
A miniaturized electro-optical, retro-reflective scanning module. The module has a base, a first circuit board, and a second circuit board mounted substantially orthogonal to the first circuit board. The base supports a light emitter for producing a scanning beam and optical elements for directing and collecting light energy. The emitted beam reflects off a fold mirror onto a reflector mounted on a drive for oscillation. The oscillating reflector, in turn, redirects the beam onto an indicia being read. The reflected light is reflected off the oscillating reflector and directed to the collection mirror before reaching a detector. The detector included in the module senses light reflected from an indicia scanned by the beam. The reflector is driven by an electro-magnetiz driven system, including a flexure and an actuation arm.