BI FUNCTION LED HEAD LAMP USING THIN SHIELD

• US 20150308647A1
• Filed: 04/24/2015
• Published: 10/29/2015
• Est. Priority Date: 04/25/2014
• Status: Active Grant

• Current Assignee: Hyundai Mobis Co., Ltd.
• Original Assignee: Hyundai Mobis Co., Ltd.
• Inventors: LEE, Hyun Soo
• Granted Patent: US 9,518,713 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21S 41/148 the main emission direction of the LED being perpendicular to the optical axis
• CPC Class Codes: F21S 41/255 Lenses with a front view of circular or truncated circular outline
• CPC Class Codes: F21S 41/28 Cover glass
• CPC Class Codes: F21S 41/295 specially adapted to projection lenses
• CPC Class Codes: F21S 41/321 the reflector being a surface of revolution or a planar surface, e.g. truncated
• CPC Class Codes: F21S 41/338 the reflector having surface portions added to its general concavity
• CPC Class Codes: F21S 41/365 successively reflecting the light
• CPC Class Codes: F21S 41/43 characterised by the shape thereof
• CPC Class Codes: F21S 41/60 characterised by a variable light distribution
• CPC Class Codes: F21S 41/663 by switching light sources by switching incandescent light sources F21S41/162
• CPC Class Codes: F21W 2102/18 for overhead signs

Abstract

Disclosed is a bi function LED head lamp using a thin shield. The lamp includes: a low beam light source and a high beam light source installed at inner upper and lower sides of a reflector; a shield installed at a front end of the partition in the reflector; a lens holder in which the rear is joined to a front surface of the reflector; and a signal reflection surface installed at an inner lower end of the lens holder. The low beam and the high beam are implemented only by turning on and off an LED through applying the thin shield without an actuator.

Claims

1. A bi function LED head lamp using a thin shield, comprising:

a reflector in which a front inlet is opened and an inner space is partitioned into an upper low beam reflector space and a lower high beam reflector space by a partition installed at the center;

a low beam light source installed at a top inner side of the partition so as to be positioned in the upper low beam reflector space;

a high beam light source installed at a bottom inner side of the partition so as to be positioned in the lower high beam reflector space;

a shield installed at a front end of the partition;

a lens holder in which a lens is mounted on the front and the rear side is joined to a front surface of the reflector; and

a signal reflection surface installed at a lower inner end of the lens holder.

2. The lamp of claim 1, wherein the low beam light source and the high beam light source are LED light sources.

3. The lamp of claim 1, wherein the shield is the thin shield and a hole through which the light source passes is bored at the front end of the shield.

4. The lamp of claim 3, wherein the hole has a semicircular shape.

5. The lamp of claim 1, wherein the signal reflection surface is formed integrally with the lens holder.

6. The lamp of claim 5, wherein an upper front surface of the signal reflection surface faces the lens and is formed by an inclined surface that is inclined back upward from the side view.

7. The lamp of claim 5, wherein both surfaces of the upper front surface and an upper rear surface of the signal reflection surface are formed by inclined surfaces of which the widths decrease upward from the side view.