WINDSHIELD DISPLAY SYSTEM

• US 20140036075A1
• Filed: 07/31/2012
• Published: 02/06/2014
• Est. Priority Date: 07/31/2012
• Status: Abandoned Application

• Current Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Original Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Inventors: Kuhlman, Frederick F., Sarma, Dwadasi H.R., Lambert, David K., Stark, Kris R.
• Application Number:
  US13/562,352
• Publication Number:
  US 20140036075A1
• Time in Patent Office: Days
• US Class Current: 348/148
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/0138 comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 27/01 Head-up displays
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G02B 5/30 Polarising elements light-modulating devices with active elements G02F1/00
• CPC Class Codes: G03B 21/2033 LED or laser light sources
• CPC Class Codes: H04N 9/3129 scanning a light beam on the display screen scanning a light beam on a screen in displays other than projection devices G09G3/02; scanning systems in general G02B26/10; projectors using laser light sources in general H04N9/3161

Abstract

A windshield display system that includes a light source such as a laser configured to project light from a plurality of source locations onto a desired location of a windshield. The number of source locations and relative spacing apart of the source locations is such that light emitted from the source locations and reflected into an eye of an operator is characterized as having a reflected light power less than a reflected power threshold.

Claims

1. A windshield display system comprising:

a light source configured to project light from a plurality of source locations onto a desired location of a windshield, wherein the number of source locations and relative spacing apart of the source locations is such that light emitted from the source locations and reflected into an eye of an operator is characterized as having a reflected light power less than a reflected power threshold.

2. The system in accordance with claim 1, wherein the light source is configured to project a distinct beam of light from each of the source locations onto the desired location.

3. The system in accordance with claim 2, wherein said system further comprises a windshield equipped with fluorescing material configured to generate emitted light having a first wavelength when illuminated with light having a second wavelength.

4. The system in accordance with claim 1, wherein the light source includes

a single laser operable to emit a laser beam;

one or more beam splitters configured to split the laser beam into distinct source beams for each of the source locations;

a scanning mirror for each of the source locations, each scanning mirror operable to reflect one of the source beams to the desired location.

5. The system in accordance with claim 1, wherein the light source includes

a plurality of lasers, each operable to emit a source beam for each of the source locations;

a scanning mirror for each of the source locations, each scanning mirror operable to reflect one of the source beams to the desired location.

6. The system in accordance with claim 1, wherein the light source includes a single laser operable to emit a laser beam;

a polarizing beam splitter configured to split the laser beam into a first p-polarized beam and a second p-polarized beam;

a first scanning mirror operable to reflect the first p-polarized beam to the desired location; and

a second scanning minor operable to reflect the second p-polarized beam to the desired location.

7. The system in accordance with claim 1, wherein the system further comprises a controller configured to control light emitted from the source locations.

8. The system in accordance with claim 7, wherein the system further comprises a camera configured to view the desired location and communicate a signal indicative of an image of the desired location to the controller.