Lamp and vehicle lamp apparatus using the same

• US 9,809,149 B2
• Filed: 01/10/2013
• Issued: 11/07/2017
• Est. Priority Date: 07/13/2012
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Cho, Yun Min, Lee, Gun Kyo
• Primary Examiner(s): Gramling, Sean
• Assistant Examiner(s): Sufleta, II, Gerald J
• Application Number:
  US13/738,872
• Publication Number:
  US 20140016340A1
• Time in Patent Office: 1,762 Days
• CPC Class Codes: B60Q 1/02 the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: F21S 41/153 arranged in a matrix
• CPC Class Codes: F21S 41/19 Attachment of light sources or lamp holders achieving variable light distribution by movable light sources F21S41/657
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/19 Attachment of light sources or lamp holders
• CPC Class Codes: F21V 3/049 Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
• CPC Class Codes: F21V 3/10 characterised by coatings
• CPC Class Codes: F21V 9/00 Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters coloured shades F21V1/00; elements characterised by cooling arrangements F21V29/502
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2105/12 characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
• CPC Class Codes: F21Y 2107/10 on concave supports or substrates, e.g. on the inner side of bowl-shaped supports
• CPC Class Codes: F21Y 2107/20 on convex supports or substrates, e.g. on the outer surface of spheres
• CPC Class Codes: F21Y 2107/50 on planar substrates or supports, but arranged in different planes or with differing orientation, e.g. on plate-shaped supports with steps on which light-generating elements are mounted
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details

Abstract

An intelligent type lamp and a vehicle lamp apparatus are disclosed. The lamp includes a first substrate, a second substrate disposed on the first substrate, and a plurality of light sources disposed on the second substrate, wherein the light sources are grouped into at least one light source array, in each of which the light sources are disposed in a line, and the at least one light source array includes neighboring first and second light source arrays electrically isolated and individually driven. The light sources of the first light source array may be electrically isolated and individually driven, and the light sources of the second light source array may be electrically isolated and individually driven. Alternatively, the light sources of the first light source array may be electrically isolated and individually driven, and the light sources of the second light source array may be electrically connected and simultaneously driven.

Claims

1. A lamp comprising:

a first substrate, which is a printed circuit board;

a second substrate disposed on the first substrate;

at least one first electrode pattern directly disposed on the second substrate;

at least one second electrode pattern disposed on the first substrate;

at least one third electrode pattern directly disposed on the second substrate;

at least one fourth electrode pattern disposed on the first substrate;

a plurality of first light sources disposed on the first electrode pattern;

a plurality of second light sources disposed on the third electrode pattern,

a plurality of first wires electrically connecting each of the first light sources with the second electrode pattern;

a plurality of second wires electrically connecting each of the third light sources with the fourth electrode pattern,

wherein each of the first light sources are disposed in a first line,

wherein each of the second light sources are disposed in a second line,

wherein the first light sources and the second light sources are electrically isolated and individually driven,

wherein a distance between two adjacent ones of the light sources of the first light sources is less than a distance between two adjacent ones of the light sources of the second light sources, and

wherein the first substrate comprises a cavity formed at a predetermined area thereof, and the second substrate is disposed in the cavity of the first substrate.

2. The lamp according to claim 1, wherein the at least one first electrode pattern includes a plurality of first electrode patterns, and wherein the plurality of first electrode patterns corresponds to the plurality of first light sources in a one to one manner.

3. The lamp according to claim 1, wherein the first substrate is a metal substrate having a first heat conductivity, and the second substrate is an insulative substrate having a second heat conductivity.

4. The lamp according to claim 1, wherein the at least one third electrode pattern includes a plurality of third electrode patterns, and wherein the plurality of third electrode patterns correspond to the plurality of first wires in a one to one manner.

5. The lamp according to claim 1, wherein the second substrate has at least one selected from among a concave surface, a convex surface, and a flat surface.

6. The lamp according to claim 1, further comprising a barrier disposed around the light sources, wherein the barrier comprises a metal reflective material.

7. A lamp comprising:

a first substrate, which is a printed circuit board, the first substrate including a top surface;

a second substrate disposed on the top surface of the first substrate, and the second substrate including an upper surface having a first surface, a second surface and a middle surface disposed between the first surface and the second surface;

a plurality of first light sources disposed on at least one of the first surface and the middle surface; and

a plurality of second light sources disposed on the second surface,

wherein each of the first light sources are disposed in a first line,

wherein the first light sources and the second light sources are electrically isolated and individually driven,

wherein the first surface of the second substrate is higher than the second surface of the second substrate based on the top surface of the first substrate, wherein an angle between the middle surface of the second substrate and the second surface of the second substrate is an obtuse angle,

wherein the first surface and the second surface of the second substrate are flat, and

wherein the first substrate includes a cavity formed at a predetermined area thereof, and the second substrate is disposed in the cavity of the first substrate.

8. The lamp according to claim 7, wherein a distance between a first parallel line extending from an upper surface of the first light source and a second parallel line extending from an upper surface of the second light source is the same as or differs from a distance between the upper surface of the first light source and a lower surface of the first light source.

9. The lamp according to claim 7, wherein the first substrate is a metal substrate having a first heat conductivity, and the second substrate is an insulative substrate having a second heat conductivity.

10. The lamp according to claim 7, wherein the second substrate have at least one selected from among a concave surface, a convex surface, and a flat surface.

11. The lamp according to claim 7, wherein the middle surface of the second substrate slopes toward the second surface of the second substrate.

12. A lamp comprising:

a first substrate, which is a printed circuit board;

a second substrate disposed on the first substrate;

a plurality of light sources disposed on the second substrate in a line; and

a first projection disposed between the second substrate and at least one light source of the plurality of light sources,

wherein a height of the first projection is greater than a height of the light source,

wherein an angle between an upper surface of the second substrate and a side surface of the first projection is an obtuse angle,

wherein a top surface of the first projection and the upper surface of the second substrate are parallel,

wherein a light source with different height has a different light emission direction, and

wherein the first substrate comprises a cavity formed at a predetermined area thereof, and the second substrate is disposed in the cavity of the first substrate.

14. The lamp according to claim 12, wherein the first substrate is a metal substrate having a first heat conductivity, and the second substrate is an insulative substrate having a second heat conductivity.

15. The lamp according to claim 12, wherein the second substrate have at least one selected from among a concave surface, a convex surface, and a flat surface.

16. The lamp according to claim 12, wherein at least one light source of the plurality of the light sources is disposed on at least one of both side surfaces of the first projection.

13. A lamp comprising:

a first substrate, which is a printed circuit board;

a second substrate disposed on the first substrate;

a plurality of light sources disposed on the second substrate in a line;

a first projection disposed between the second substrate and at least one light source of the plurality of light sources, and

a second projection disposed on the first projection,

wherein a height of the first projection is greater than a height of the light source,

wherein an angle between an upper surface of the second substrate and a side surface of the first projection is an obtuse angle,

wherein a top surface of the first projection and the upper surface of the second substrate are parallel,

wherein a light source with different height has a different light emission direction, and

wherein at least one light source of the plurality of light sources is disposed on the second projection.