Vehicle headlamp for projecting driving information

Patent metadata

Field	Value
Publication number	US-10114279-B2
Application number	US-201615370727-A
Country	US
Kind code	B2
Filing date	Dec 6, 2016
Priority date	Sep 30, 2016
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

A vehicle headlamp device is disclosed that is capable of projecting driving information onto the road using a high beam and of improving visibility of an image containing the driving information projected onto the road. Specifically, as the result of adjusting the color of the image suitable for the driving information projected onto the road, the driver is capable of more easily perceiving the driving information due to the image having a specific color corresponding to the driving information. In addition, as the result of correcting an anamorphically-enlarged image using an anamorphic lens, the image containing the driving information is projected onto the road more clearly.

First claim

What is claimed is:

1. A vehicle headlamp device comprising:
a light source;
a reflection unit that reflects the light emitted from the light source having a plurality of light reflection sections for changing a path of the light;
a primary optical system that receives the light reflected by the reflection unit along a first path and emits the light as a high beam; and
an auxiliary optical system having a plurality of color patterns for changing a color of the light incident thereto that receives the light reflected by the reflection unit along a second path and projects the light onto a road.

2. The vehicle headlamp device of claim 1 , wherein the first path is different from the second path.

3. The vehicle headlamp device of claim 1 , wherein the reflection unit comprises a digital micro-mirror device having a plurality of micro mirrors that can be changed in angle to change the path of the light incident thereto.

4. The vehicle headlamp device of claim 1 , wherein the reflection unit is divided into a primary section that reflects the light from the light source toward the primary optical system and a secondary section that reflects the light toward the auxiliary optical system.

5. The vehicle headlamp device of claim 4 , wherein the secondary section of the reflection unit comprises a plurality of sub-sections corresponding to a set of color patterns of the auxiliary optical system.

6. The vehicle headlamp device of claim 1 , wherein the primary optical system comprises a plurality of lenses, and wherein the auxiliary optical system is mounted to one of the plurality of lenses of the primary optical system.

7. The vehicle headlamp of claim 1 , wherein the auxiliary optical system is mounted to the one of the plurality of lenses comprising the primary optical system that is the first lens to which the light reflected by the reflection unit is first incident.

8. The vehicle headlamp device of claim 6 , wherein the plurality of lenses in the primary optical system includes a dual lens, a first lens, a second lens, and an aspherical lens.

9. The vehicle headlamp device of claim 1 , wherein the auxiliary optical system comprises a multi-colored lens unit having a plurality of color patterns, to which the light reflected by the reflection unit is incident, and a light collection unit disposed adjacent to the multi-colored lens unit and that collects the light and emits the light.

10. The vehicle headlamp device of claim 9 , wherein the multi-colored lens unit is divided into a green-colored section, a red-colored section and a blue-colored section, and each of the colored sections is mounted to the primary optical system using a bracket.

11. The vehicle headlamp device of claim 9 , wherein the auxiliary optical system further comprises an anamorphic lens that compresses and corrects an anamorphically-enlarged image created by the reflection of light emitted from the light source through the reflection unit.

12. The vehicle headlamp device of claim 11 , wherein the multi-colored lens unit, the light collection unit and the anamorphic lens are sequentially arranged in the auxiliary optical system.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Lim Jung Wook
• Shin Jik Soo
• Jin Keon Soon
• Lee Ki Hong
• Ahn Byoung Suk

Classifications

• F21W2102/13

  for high-beam region or low-beam region · CPC title

• G02B13/16

  for use in conjunction with image converters or intensifiers {, or for use with projectors, e.g. objectives for projection TV} · CPC title

• G02B27/0025

  for optical correction, e.g. distorsion, aberration · CPC title

• G02B13/08

  Anamorphotic objectives · CPC title

• G02B26/0833

  the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD (G02B26/0825 takes precedence; micromechanical devices in general B81B) · CPC title