Vehicle-use head-up display system

• US 6,654,177 B2
• Filed: 06/17/2002
• Issued: 11/25/2003
• Est. Priority Date: 07/26/2001
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Aoki, Kunimitsu, Nakamura, Go
• Primary Examiner(s): MACK, RICKY LEVERN
• Application Number:
  US10/171,617
• Publication Number:
  US 20030021043A1
• Time in Patent Office: 526 Days
• Field of Search: 359/630, 359/631, 359/633, 359/822, 345/7, 345/8
• US Class Current: 359/632
• CPC Class Codes: G02B 27/0149 characterised by mechanical features G02B27/0176 takes precedence

Abstract

A vehicle-use head-up display system is provided, which has: a luminous display unit to display an image including information about a vehicle; a reflecting means to reflect light of the display-image of the luminous display unit; a translucent reflecting means arranged on a windshield ahead of a driver'"'"'s seat, reflecting the light of the display-image from the reflecting means, and having a driver look at a virtual image on the windshield; a moving means to linearly move the reflecting means in a back-and-forth direction of the vehicle; and a display-image moving means to upwardly move the display-image of the luminous display unit in accordance with a backward movement of the reflecting means by the moving means and to downwardly move the display-image of the luminous display unit in accordance with a forward movement of the reflecting means by the moving means, wherein a display position is adjusted such that a depression angle does not change when an eye point in an eye range changes.

Claims

1. A vehicle-use head-up display system, comprising:

a luminous display unit to display an image including information about a vehicle;

a reflecting means to reflect light of the display-image of the luminous display unit;

a translucent reflecting means arranged on a windshield ahead of a driver'"'"'s seat, reflecting the light of the display-image from the reflecting means, and having a driver look at a virtual image on the windshield;

a moving means to linearly move the reflecting means in a back-and-forth direction of the vehicle; and

a display-image moving means to upwardly move the display-image of the luminous display unit in accordance with a backward movement of the reflecting means by the moving means and to downwardly move the display-image of the luminous display unit in accordance with a forward movement of the reflecting means by the moving means,

wherein a display position is adjusted such that a depression angle does not change when an eye point in an eye range changes.

2. The vehicle-use head-up display system as set forth in claim 1, wherein

the display-image moving means is a display unit moving means to vertically move the luminous display unit.

3. The vehicle-use head-up display system as set forth in claim 2, wherein

the display unit moving means has a display inclining means to incline a display surface of the luminous display unit in such a manner that an optical axis of the luminous display unit is unchanged when the luminous display unit is vertically moved.

4. The vehicle-use head-up display system as set forth in claim 2, wherein

the display unit moving means has

a driving device to drive the luminous display unit and

a guiding means, of an arcuate groove, to vertically guide the luminous display unit driven by the driving device and to incline a display surface of the luminous display unit in such a manner that an optical axis of the luminous display unit is unchanged when the luminous display unit is vertically moved.

5. The vehicle-use head-up display system as set forth in claim 2, wherein

the display unit moving means has a driving device to drive the luminous display unit and a guiding means to vertically linearly guide the luminous display unit driven by the driving device.

6. The vehicle-use head-up display system as set forth in claim 1, wherein

the display-image moving means is a means to vertically move the display-image on the display surface of the luminous display unit.