Light emitting package having a guiding member guiding an optical member

Patent metadata

Field	Value
Publication number	US-9240534-B2
Application number	US-201414507560-A
Country	US
Kind code	B2
Filing date	Oct 6, 2014
Priority date	Dec 17, 2004
Publication date	Jan 19, 2016
Grant date	Jan 19, 2016

Abstract

A light emitting package, includes a base; a light emitting device on the base; an electrical circuit layer electrically connected to the light emitting device; an optical member formed of a light transmissive material; and a guiding member guiding the optical member, the guiding member including an opening, a first portion disposed on the uppermost surface of the base, and a second portion connected to an edge portion of the optical member. The first portion of the guiding member is positioned higher than a bottom surface of the optical member, an uppermost surface of the base is closer to the first portion of the guiding member than the second portion of the guiding member, and the edge portion of the optical member is closer to the second portion of the guiding member than the first portion of the guiding member.

First claim

What is claimed is:

1. A light emitting package, comprising:
a base having an uppermost surface with a substantially flat portion;
a light emitting device on the base;
an electrical circuit layer electrically connected to the light emitting device;
an optical member formed of a light transmissive material such that light emitted from the light emitting device passes therethrough; and
a guiding member guiding the optical member, the guiding member including an opening, a first portion disposed on the uppermost surface of the base, and a second portion connected to an edge portion of the optical member,
wherein the first portion of the guiding member is positioned higher than a bottom surface of the optical member,
wherein the uppermost surface of the base is closer to the first portion of the guiding member than the second portion of the guiding member, and
wherein the edge portion of the optical member is closer to the second portion of the guiding member than the first portion of the guiding member.

2. The light emitting package according to claim 1 , wherein the uppermost surface of the base and the first portion of the guiding member are vertically overlapped with respect to each other.

3. The light emitting package according to claim 1 , wherein the uppermost surface of the base is positioned higher than the bottom surface of the optical member.

4. The light emitting package according to claim 1 , wherein a bottom surface of the first portion is positioned higher than the bottom surface of the optical member.

5. The light emitting package according to claim 1 , wherein a shape of the opening of the guiding member is substantially circular.

6. The light emitting package according to claim 1 , further comprising an electrode layer disposed on the electrical circuit layer.

7. The light emitting package according to claim 6 , wherein the electrode layer includes nickel.

8. The light emitting package according to claim 6 , wherein the electrode layer includes gold.

9. The light emitting package according to claim 1 , wherein the optical member is formed of a resin material.

10. The light emitting package according to claim 1 , wherein the optical member covers the light emitting device.

11. The light emitting package according to claim 1 , wherein the light emitting device is disposed on the substantially flat portion of the base.

12. The light emitting package according to claim 1 , wherein the electrical circuit layer and the light emitting device are electrically connected with a wire, and
wherein an outer end of the wire is positioned higher than an inner end of the wire.

13. The light emitting package according to claim 12 , wherein the outer end of the wire is closer to the guiding member than the inner end of the wire.

14. The light emitting package according to claim 1 , wherein the guiding member is disposed on the base, and
wherein an outermost portion of the guiding member does not extend beyond an outermost portion of the base.

15. The light emitting package according to claim 1 , wherein a bottom surface of the guiding member is disposed higher than a bottom surface of the light emitting device, and
wherein a region provided between the bottom surface of the guiding member and the bottom surface of the light emitting device includes an uneven surface.

16. The light emitting package according to claim 1 , wherein the electrical circuit layer and the light emitting device are electrically connected with a wire, the wire including an outer end connected to the electrical circuit layer and an inner end connected to the light emitting device, and
wherein the outer end of the wire is closer to the guiding member than the inner end of the wire.

17. A light emitting package, comprising:
a base having an uppermost surface with a substantially flat portion;
a light emitting device on the base;
an electrical circuit layer electrically connected to the light emitting device;
an optical member formed of a light transmissive material such that light emitted from the light emitting device passes therethrough; and
a guiding member guiding the optical member, the guiding member including an opening, a first portion disposed on the uppermost surface of the base, and a second portion connected to an edge portion of the optical member,
wherein the first portion of the guiding member is positioned higher than a bottom surface of the optical member,
wherein the uppermost surface of the base is closer to the first portion of the guiding member than the second portion of the guiding member,
wherein the edge portion of the optical member is closer to the second portion of the guiding member than the first portion of the guiding member, and
wherein a cross-sectional shape of the first portion is substantially rectangular, a width of the cross-sectional shape of the first portion being larger than a height of the cross-sectional shape of the first portion.

18. A light emitting unit, comprising:
at least one light emitting package, each including:
a base having an uppermost surface with a substantially flat portion;
a light emitting device on the base;
an electrical circuit layer electrically connected to the light emitting device;
an optical member formed of a light transmissive material such that light emitted from the light emitting device passes therethrough; and
a guiding member guiding the optical member, the guiding member including an opening, a first portion disposed on the uppermost surface of the base, and a second portion connected to an edge portion of the optical member,
wherein the first portion of the guiding member is positioned higher than a bottom surface of the optical member,
wherein the uppermost surface of the base is closer to the first portion of the guiding member than the second portion of the guiding member, and
wherein the edge portion of the optical member is closer to the second portion of the guiding member than the first portion of the guiding member.

19. The light emitting unit according to claim 18 , wherein a bottom surface of the first portion is positioned higher than the bottom surface of the optical member.

20. The light emitting unit according to claim 18 , wherein a shape of the opening of the guiding member is substantially circular.

Assignees

• Lg Innotek Co Ltd

Inventors

• Park Jun Seok

Classifications

• Y10S257/918

  Light emitting regenerative switching device, e.g. light emitting scr arrays, circuitry · CPC title

• H05K1/182

  associated with components mounted in printed circuit boards [PCB], e.g. insert-mounted components [IMC] · CPC title

• H05K1/021

  Components thermally connected to metal substrates or heat-sinks by insert mounting · CPC title

• H05K2201/06

  Thermal details · CPC title

• H05K1/056

  the metal substrate being covered by an organic insulating layer · CPC title