HEAD-UP DISPLAY HAVING A PLURALITY OF PROJECTION PLANES

• US 20140247262A1
• Filed: 09/27/2012
• Published: 09/04/2014
• Est. Priority Date: 10/01/2011
• Status: Abandoned Application

• Current Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Original Assignee: Johnson Controls Automotive Electronics SAS (Johnson Controls International plc)
• Inventors: Gall, Hugues
• Application Number:
  US14/348,826
• Publication Number:
  US 20140247262A1
• Time in Patent Office: Days
• US Class Current: 345/419
• CPC Class Codes: G02B 2027/0127 comprising devices increasing the depth of field
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G02B 30/52 the 3D volume being constructed from a stack or sequence of 2D planes, e.g. depth sampling systems
• CPC Class Codes: G06T 15/10 Geometric effects
• CPC Class Codes: G09G 5/36 characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
• CPC Class Codes: H04N 13/395 with depth sampling, i.e. the volume being constructed from a stack or sequence of 2D image planes

Abstract

A head-up display in a motor vehicle has an imaging unit that generates images, and an optical device. The optical device projects the images into at least two projection surfaces, which in each case have a different distance from the eye of an observer.

Claims

1. A head-up display comprising:

an imaging unit which generates images, and

an optical device,

wherein the optical device projects the images into at least two projection surfaces, which in each case have a different distance from an eye of an observer.

2. The head-up display as claimed in claim 1, wherein at least one projection surface is a virtual projection surface.

3. The head-up display as claimed in claim 1, wherein the projection surfaces are arranged one behind another.

4. The head-up display as claimed in claim 3, wherein the distance between the projection surfaces is 1.6-2.4 m.

5. The head-up display as claimed in claim 1, wherein the images displayed on the projection surfaces together produce a 3D image.

6. The head-up display as claimed in claim 1, wherein the information content of the images displayed on the projection surfaces are independent of one another.

7. The head-up display as claimed in claim 1, wherein information items are displayed on the projection surfaces simultaneously or successively.

8. The head-up display as claimed in claim 1, wherein it has two imaging units.

9. The head-up display as claimed in claim 1, wherein the optical device has at least one movable part.