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Head-up display device

  • US 9,244,276 B2
  • Filed: 05/13/2014
  • Issued: 01/26/2016
  • Est. Priority Date: 12/15/2011
  • Status: Active Grant
First Claim
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1. A head-up display device for projecting a display light on a windshield of a vehicle to form a virtual image thereon, the head-up display device comprising:

  • a casing;

    an indicator which is attached to the casing to emit the display light into the casing;

    a light guide path through which the display light emitted from the indicator is guided; and

    a wiring board which is provided with a driving circuit for driving the indicator, wherein the casing includes a guide rail formed as an inner surface of a lateral wall of the casing at one end side of the casing along an irradiation direction of the display light from the indicator to support both lateral portions of the wiring board on the guide rail, andthe wiring board is attached, by a slidable attachment, in a containing space of the casing formed between the light guide path and an inner surface of the casing and is configured to slide on the guide rail along the irradiation direction.

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