Lamp for vehicle and vehicle

Patent metadata

Field	Value
Publication number	US-2018339643-A1
Application number	US-201715856724-A
Country	US
Kind code	A1
Filing date	Dec 28, 2017
Priority date	May 29, 2017
Publication date	Nov 29, 2018
Grant date	—

Abstract

A lamp for a vehicle includes: a light generation unit having an array module with a plurality of micro Light Emitting Diode (micro-LED) elements; at least one processor; and a computer-readable medium having stored thereon instructions that, when executed, cause the at least one processor to perform: controlling the light generation unit to form a first light distribution pattern that, when projected on a vertical plane at a first distance from the light generation unit, includes a plurality of zones having different luminous intensities. Controlling the light generation unit to form the first light distribution pattern includes: controlling at least one first micro-LED element to generate a first luminous intensity at a first zone of the first light distribution pattern; and controlling at least one second micro-LED element to generate a second luminous intensity at a second zone of the first light distribution pattern.

First claim

What is claimed is:

1 . A lamp for a vehicle, the lamp comprising:
a light generation unit comprising an array module on which a plurality of micro Light Emitting Diode (micro-LED) elements is disposed; at least one processor; and a computer-readable medium having stored thereon instructions that, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
controlling the light generation unit to form a first light distribution pattern that, when projected on a vertical plane at a first distance from the light generation unit, comprises a plurality of zones having different luminous intensities,
wherein controlling the light generation unit to form the first light distribution pattern comprises:
controlling at least one first micro-LED element of the light generation unit to generate a first luminous intensity at a first zone of the first light distribution pattern; and
controlling at least one second micro-LED element of the light generation unit to generate a second luminous intensity at a second zone of the first light distribution pattern.

2 . The lamp according to claim 1 , wherein controlling the light generation unit to form the first light distribution pattern further comprises:
forming the first light distribution pattern that, when projected on the vertical plane at the first distance from the light generation unit, has a central point having the highest luminous intensity in the first light distribution pattern.

3 . The lamp according to claim 2 , wherein controlling the light generation unit to form the first light distribution pattern further comprises:
forming the first light distribution pattern that, when projected on the vertical plane at the first distance from the light generation unit, is vertically symmetric with respect to a vertical centerline of the first light distribution pattern.

4 . The lamp according to claim 3 , wherein controlling the light generation unit to form the first light distribution pattern further comprises:
forming the first light distribution pattern that, when projected on the vertical plane at the first distance from the light generation unit, comprises first to fifth zones having different luminous intensities.

5 . The lamp according to claim 4 , wherein the first zone comprises a region in a shape of a first rectangle,
wherein the first rectangle has a pair of points as lower vertices which form an angle of 5 degrees relative to a reference line connecting the light generation unit and the central point in a horizontal direction with respect to the light generation unit, and which are positioned on a horizontal centerline, wherein a point at an angle of 1.75 degrees relative to the reference line in an upward direction is positioned on an upper edge of the first rectangle, and wherein the first distance is 20 m to 30 m.

6 . The lamp according to claim 5 , wherein controlling the light generation unit to form the first light distribution pattern further comprises:
forming the first light distribution pattern that, when projected on the vertical plane at the first distance from the light generation unit, has a luminous intensity of 62 to 8,000 cd at every point within the first zone.

7 . The lamp according to claim 5 ,
wherein the second zone comprises a region in a shape of a second rectangle that excludes the region of the first rectangle, wherein the second rectangle has a pair of points as lower vertices which form an angle of 26 degrees relative to the reference line in a horizontal direction with respect to the light generation unit, and which are positioned on the horizontal centerline, and wherein a point at an angle of 3.5 degrees relative to the reference line in an upward direction is positioned on an upper edge of the second rectangle.

8 . The lamp according to claim 7 , wherein controlling the light generation unit to form the first light distribution pattern further comprises:
forming the first light distribution pattern that, when projected on the vertical plane at the first distance from the light generation unit, has a luminous intensity of 0 to 400 cd at every point within the second zone.

9 . The lamp according to claim 4 ,
wherein the third zone comprises a region in a shape of a third rectangle, wherein the third rectangle has a pair of points as lower vertexes which form an angle of 26 degrees relative to a reference line connecting the light generation unit and the central point in a horizontal direction with respect to the light generation unit, and which form an angle of 3.5 degrees relative to the reference line in an upward direction with respect to the light generation unit, wherein the third rectangle has a pair of points as upper vertexes which form an angle of 26 degrees relative to the reference line in the horizontal direction with respect to the light generation unit, and which form an angle of 15 degrees relative to the reference line in the upward direction with respect to the light generation unit, and wherein the first distance is 20 m to 30 m.

10 . The lamp according to claim 9 , wherein controlling the light generation unit to form the first light distribution pattern further comprises:
forming the first light distribution pattern that, when projected on the vertical plane at the first distance from the light generation unit, has a luminous intensity of 0 to 250 cd at every point within the third zone.

11 . The lamp according to claim 4 ,
wherein the fourth zone comprises a region in a shape of a fourth rectangle, wherein the fourth rectangle has a pair of points as lower vertices which form an angle of 12 degrees relative to a reference line connecting the light generation unit and the central point in a horizontal direction with respect to the light generation unit, and which form an angle of 3.5 relative to the reference line in a downward direction with respect to the light generation unit, wherein the fourth rectangle has a pair of points as upper vertices which form an angle of 12 degrees relative to the reference line in the horizontal direction with respect to the light generation unit, and which form an angle of 1.75 degrees relative to the reference line in the downward direction with respect to the light generation unit, and wherein the first distance is 20 m to 30 m.

12 . The lamp according to claim 11 , wherein controlling the light generation unit to form the first light distribution pattern further comprises:
forming the first light distribution pattern that, when projected on the vertical plane at the first distance from the light generation unit, has a luminous intensity of 1,250 to 8,000 cd at every point within the fourth zone.

13 . The lamp according to claim 4 ,
wherein the fifth zone comprises a region in a shape of a fifth rectangle and a region in a shape of a sixth rectangle, wherein the fifth rectangle has a left lower vertex which forms an angle of 22 degrees relative to a reference line connecting the light generation unit and the central point in a left direction with respect to the light generation unit, and which forms an angle of 3.5 degrees relative to the reference line in a downward direction with respect to the light generation unit, wherein the fifth rectangle has a right lower vertex which forms an angle of 12 degrees relative to the reference line in the left direction with respect to the light generation unit, and which forms an angle of 1.75 degrees relative to the reference line in the downward direction with respect to the light generation unit, wherein the sixth rectangle is formed to be vertically sym

Assignees

• Lg Electronics Inc

Inventors

• Kim Geunhyeong

Classifications

• F21S41/663 Primary

  by switching light sources (by switching incandescent light sources F21S41/162) · CPC title

• F21S41/143

  the main emission direction of the LED being parallel to the optical axis of the illuminating device · CPC title

• F21S41/153

  arranged in a matrix · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• H05B45/10

  Controlling the intensity of the light · CPC title