Lamp for vehicle

• US 10,274,153 B2
• Filed: 07/17/2018
• Issued: 04/30/2019
• Est. Priority Date: 07/27/2017
• Status: Active Grant

• Current Assignee: SL Corporation
• Original Assignee: SL Corporation
• Inventors: Kim, Jongwoon, Choi, Nakjung, Kim, Hyeongdo, Shin, Kihae
• Primary Examiner(s): Raleigh, Donald L
• Application Number:
  US16/037,182
• Publication Number:
  US 20190032881A1
• Time in Patent Office: 287 Days
• CPC Class Codes: F21S 41/143 the main emission direction of the LED being parallel to the optical axis of the illuminating device
• CPC Class Codes: F21S 41/265 Composite lenses; Lenses with a patch-like shape
• CPC Class Codes: F21S 41/275 Lens surfaces, e.g. coatings or surface structures
• CPC Class Codes: F21S 41/285 Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24-F21S41/28
• CPC Class Codes: F21S 41/40 characterised by screens, non-reflecting members, light-shielding members or fixed shades
• CPC Class Codes: F21S 41/43 characterised by the shape thereof

Abstract

Provided is a lamp for a vehicle which is capable of forming a beam pattern having a cutoff line with a moderate sharpness. The lamp includes a light source portion, a first lens portion with a plurality of micro incident lenses, a second lens portion with a plurality of micro exit lenses corresponding to the plurality of micro incident lenses, respectively, and a shielding portion which includes a plurality of shields which form a plurality of illumination regions for forming a beam pattern by obstructing a portion of light which is incident onto each of the plurality of micro exit lenses. In particular, upper boundary lines of illumination regions formed by a first set of the plurality of shields are formed in positions different from those of upper boundary lines of illumination regions formed by a second set of the plurality of shields.

Claims

1. A lamp for a vehicle, comprising:

a light source portion;

a first lens portion which includes a plurality of micro incident lenses onto which light generated by the light source portion is incident;

a second lens portion which includes a plurality of micro exit lenses corresponding to the plurality of micro incident lenses, respectively; and

a shielding portion which includes a plurality of shields configured to form a plurality of illumination regions for forming a first beam pattern by obstructing a portion of light which is incident onto each of the plurality of micro exit lenses,

wherein upper boundary lines of illumination regions formed by a first set of the plurality of shields are formed in positions different from positions of upper boundary lines of illumination regions formed by a second set of the plurality of shields.

2. The lamp of claim 1, wherein the upper boundary lines of the first set of the plurality of illumination regions form a cut-off line of the first beam pattern, and

wherein the upper boundary lines of the second set of the plurality of illumination regions are disposed below the cut-off line of the first beam pattern by a predetermined offset.

3. The lamp of claim 2, wherein the cut-off line of the first beam pattern has a brightness which gradually increases toward a downward direction.

4. The lamp of claim 1, wherein each of the plurality of shields includes an edge portion for forming the upper boundary line of each of the plurality of illumination regions, and at least a part of edge portions of the first set of the plurality of shields have heights different from heights of edge portions of the second set of the plurality of shields.

5. The lamp of claim 4, wherein the edge portion includes an inclined portion, a first obstruction edge portion which horizontally extends from a bottom end of the inclined portion, and a second obstruction edge portion which horizontally extends from a top end of the inclined portion, and

wherein at least one of the first obstruction edge portion or the second obstruction edge portion of the edge portions of the first set of the plurality of shields have heights different from heights of the edge portions of the second set of the plurality of shields.

6. A lamp for a vehicle, comprising:

a light source portion;

a first lens portion which includes a plurality of micro incident lenses onto which light generated by the light source portion is incident;

a second lens portion which includes a plurality of micro exit lenses corresponding to the plurality of micro incident lenses, respectively; and

a shielding portion which includes a plurality of shields configured to form a plurality of illumination regions for forming a first beam pattern by obstructing a portion of light which is incident onto each of the plurality of micro exit lenses,

wherein each of the plurality of shields includes a light transmission portion configured to transmit light to form a second beam pattern.

7. The lamp of claim 6, wherein the first beam pattern is a low beam pattern, and the second beam pattern is a signal beam pattern formed above the low beam pattern.

8. The lamp of claim 6, wherein the light transmission portion is an open area to allow light to pass therethrough, and

wherein a first set of the plurality of shields include the open area having at least one of a size, a shape, or a position different from a second set of the plurality of shields.

9. The lamp of claim 6, wherein at least part of a boundary line of the second beam pattern has a brightness which gradually increases toward an inside direction.

10. The lamp of claim 6, wherein the light transmission portion includes a transmission area which transmits light and an obstruction area which obstructs light, and

wherein the transmission area and the obstruction area are alternatingly arranged in at least one direction.

11. The lamp of claim 10, wherein a first set of the plurality of shields have at least one of the transmission area or the obstruction area formed at a different position from a second set of the plurality of shields.