Head-up display with an adjusting device for a mirror

• US 6,809,872 B2
• Filed: 09/05/2002
• Issued: 10/26/2004
• Est. Priority Date: 09/10/2001
• Status: Active Grant

• Current Assignee: Continental Automotive GmbH (Continental AG)
• Original Assignee: Siemens AG
• Inventors: Schmidt, Franz-Peter, Eberhardt, Bernd
• Primary Examiner(s): Epps, Georgia
• Assistant Examiner(s): Harrington, Alicia M.
• Application Number:
  US10/236,446
• Publication Number:
  US 20030165025A1
• Time in Patent Office: 782 Days
• Field of Search: 359/630, 359/631, 359/632, 359/618, 359/871-877, 345/7-9
• US Class Current: 359/630
• CPC Class Codes: G02B 27/0149 characterised by mechanical features G02B27/0176 takes precedence

Abstract

A head-up display in which the light of an image-forming device (10) can be projected onto a projection surface (12) via at least one mirror (1), and the at least one mirror (1) can be rotated about a first axis of rotation (3) by an adjusting device (2, 4, 5, 6, 7, 8), and so the position of an image that can be projected onto the projection surface (12) can be varied. The adjusting device has at least one sloping segment (5, 6) that is mounted in a fashion capable of rotation about a second axis of rotation (9), the second axis of rotation (9) not being perpendicular to the surface of the at least one sloping segment (5, 6), the at least one mirror (1) is connected to a supporting unit (2, 2a, 2b), the supporting unit (2, 2a, 2b) is pressed against the sloping segment (5, 6) at a spacing from the second axis of rotation, and by rotating the at least one sloping segment (5, 6), the supporting unit (2, 2a, 2b) slides over the sloping segment (5, 6), and the mirror (1) is thereby rotated about the first axis of rotation (3).

Claims

1. A head-up display in which light of an image-forming device (10) can be projected onto a projection surface (12) via at least one mirror (1), and the at least one mirror (1) can be rotated about a first axis of rotation (3) by means of an adjusting device (2, 4, 5, 6, 7, 8), and so the position of an image that can be projected onto the projection surface (12) can be varied, wherein the adjusting device has at least one sloping segment (5, 6) that and is mounted for rotation about a second axis of rotation (9), the second axis of rotation (9) not being perpendicular to a surface of the at least one sloping segment (5, 6), wherein the at least one mirror (1) is connected to a supporting unit (2, 2a, 2b), wherein the supporting unit (2, 2a, 2b) is pressed against the sloping segment (5, 6) at a spacing from the second axis of rotation, and wherein by rotating the at least one sloping segment (5, 6) about the second axis of rotation, the supporting unit (2, 2a, 2b) slides over the at least one sloping, segment (5, 6), and the mirror (1) is thereby rotated about the first axis of rotation (3).

2. The head-up display as claimed in claim 1, wherein there are at least two of said sloping segments (5, 6) formed as an axial cam (7), there is a second supporting unit, and said supporting units (2, 2a, 2b) slide on respective ones of the sloping segments.

3. The head-up display as claimed in claim 2, wherein the supporting units are formed as pins.

4. The head-up display as claimed in claim 1, further comprising a drive for the rotation about the second axis of rotation, said drive comprising a stepping motor.

5. A head-up display in which light of an image-forming device (10) can be projected via at least one mirror (1) onto a projection surface (12), and the at least one mirror (1) can be rotated by means of an adjusting device (2, 4, 5, 6, 7, 8) about a first axis of rotation (3), and so the position of an image that can be projected onto the projection surface (12) can be varied, wherein the at least one mirror (1) is connected to a sloping segment (5A, 6A) at a spacing from the first axis of rotation (3), wherein a supporting surface is present that bears against the sloping segment (5A, 6A) at said spacing for rotation about a second axis of rotation, the sloping segment (5A, 6A) not being arranged perpendicular to the second axis of rotation, such that due to a rotation of the support surface about the second axis of rotation, the supporting surface slides over the sloping segment (5A, 6A) and the mirror is thereby rotated about the first axis of rotation (3).

6. The head-up display as claimed in claim 5, further comprising a second sloping segment and a second supporting surface, wherein at least two of said sloping segments (5A, 6A) are present against which respective ones of said supporting surfaces bear.

7. The head-up display as claimed in claim 5, further comprising a drive for the rotation about the second axis of rotation, said drive comprising a stepping motor.