Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

129results about How to "Reduce projection" patented technology

Compact optical engine for very small personal projectors using LED illumination

According to various illustrative embodiments of the present invention, a device for a light projection system includes a single light emitting diode array comprising at least one green die, at least one blue die, and at least one red die, a single light collection, integration, and etendue-matching optic element comprising a tapered light pipe capable of collecting substantially all light emitted by the single light emitting diode array and spatially integrating the substantially all the light emitted by the single light emitting diode array, and a telecentric relay using at least one of spherical and aspherical refractive and reflective components. The device also includes an illumination wedge prism, a digital micromirror device capable of modulating the substantially all the light emitted by the single light emitting diode array, and a projection total internal reflection prism, the projection total internal reflection prism disposed between the illumination wedge prism and the digital micromirror device. The device also includes a projection lens, wherein the telecentric relay provides the substantially all the light emitted by the single light emitting diode array through the illumination wedge prism and through the projection total internal reflection prism to the digital micromirror device that reflects the substantially all the light emitted by the single light emitting diode array back through the projection total internal reflection prism that totally internally reflects the substantially all the light emitted by the single light emitting diode array through the projection lens.
Owner:TEXAS INSTR INC

Three-dimensional face modeling method and three-dimensional face modeling system assisted by face geometric information

The invention discloses a three-dimensional face modeling method and a three-dimensional face modeling system assisted by face geometric information. According to the invention, based on a binocular stereoscopic vision principle of active projection, marking the surface of the target face by using phase information contained in a multi-frame stripe structured light place; acquiring a modeling image by using a camera, acquiring relative phase information contained in a stripe structured light place based on a spatial phase unwrapping technology, unifying the relative phase information of a binocular camera to the same reference by taking a human face feature point as an anchor point, performing phase matching to obtain a disparity map, and further reconstructing a three-dimensional human face model. According to the method, the position information of the human face feature points contained in the human face fringe pattern is fully utilized, phase unwrapping can be carried out without adding an additional structure light field, the number of projection and shooting structure light fields needed for completing three-dimensional modeling is effectively reduced, the modeling image collection time is shortened, and the modeling precision is effectively guaranteed.
Owner:WISESOFT CO LTD +1

Vehicle-mounted electronic apparatus

A vehicle-mounted electronic apparatus includes a case having an opening on the front surface thereof, a face that moves from an ordinary orientation which is vertical or oblique in front of the case to an accommodated orientation in which the face is accommodated within the case, a manipulation member disposed on the manipulation surface of the face so as to face forward when the face is in the ordinary orientation, and an orientation variable means for circularly moving the face from the ordinary orientation to the accommodated orientation and for drawing the face into the case through the opening. The manipulation member is supported by the face so as to be free to advance and retract, so that the amount of projection thereof from the manipulation surface changes. When the face is circularly moved from the ordinary orientation to the horizontal orientation a retracting mechanism retracts the manipulation member by the relative moving force between the orientation variable means and the face so that the amount of projection of the manipulation member from the manipulation surface is reduced. With the above arrangement, when the face is in its ordinary orientation outside the case, the amount of projection of the manipulation member is set to a large amount L1. When the face circularly moves from the vertical orientation to the horizontal orientation, the retracting mechanism is operated whereby the amount of projection of the manipulation member is reduced to a smaller amount L2. Therefore, when the face having the horizontal orientation is accommodated within the case, the manipulation member does not come into contact with the edge of the opening, and the like.
Owner:ALPINE ELECTRONICS INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products