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HEAD-UP DISPLAY DEVICE

  • US 20140204465A1
  • Filed: 01/21/2014
  • Published: 07/24/2014
  • Est. Priority Date: 01/22/2013
  • Status: Abandoned Application
First Claim
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1. A head-up display device that projects a display picture on a projection surface of a movable unit to display a virtual image of the display picture which is seen from an interior of the movable unit, the head-up display device comprising:

  • a projector which projects laser light;

    a screen component which produces the display picture to be projected on the projection surface by irradiating the laser light; and

    a prism component disposed on an optical path between the projector and the screen component, the prism component introducing and irradiating the laser light projected from the projector to the screen component, whereinthe prism component has a refractive index which is higher than that of air, and integrally hasan incidence surface which the laser light enters from the projector,a mirror surface which reflects the laser light entering inside the prism component from the incidence surface, andan exit surface which emits the laser light reflected by the mirror surface toward the screen component outside of the prism component, as optical surface on the optical path, andeach of the incidence surface and the exit surface constructs a lens surface such that that the laser light is formed into an image relative to the screen component in a spot state.

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