A lens structure is pre-formed with features that facilitate accurate alignment of a light emitting chip within the lens structure. To ease manufacturing, the features include tapered walls that allow for easy insertion of the light emitting chip into the lens structure, the taper serving to accurately align the light emitting chip when the chip is fully inserted. The taper may include linearly sloped or curved walls, including complex shapes. An adhesive may be used to secure the light emitting chip to the lens structure. The light emitting chips may be picked-and-placed into an array of lens structures, or picked-and-placed onto a substrate that may be overlaid by the array of lens structures.

Claims

26 · 3 independent · depth 3

26 granted claims

›1.independentA light emitting diode (LED) light source, comprising: a lens structure that includes: a hemispherical dome with a base; and a cavity in the base, the…+12

›2.↳ 1The LED light source of claim 1 , wherein the taper includes one or more linearly sloped walls of the cavity in cross-section.d2+1

›4.↳ 1The LED light source of claim 1 , wherein a depth of the cavity is such that electrical contacts of the light emitting device protrude from the cavity…d2

›5.↳ 1The LED light source of claim 1 , wherein the taper includes one or more curved walls of the cavity in cross-section.d2

›6.↳ 1The LED light source of claim 1 , wherein the lens structure includes one or more channels that allow displacement of materials when the LED die is in…d2

›7.↳ 1The LED light source of claim 1 , including one or more protrusions on one or more walls of the cavity that reduce the cross-section area and contact …d2

›8.↳ 1The LED light source of claim 1 , including a reflective material between an edge of the LED die and a wall of the cavity.d2

›14.↳ 1The LED light source of claim 1 , wherein the lens structure comprises a silicone material in a partially cured physical state.d2+1

›16.↳ 1The LED light source of claim 1 , wherein the hemispherical dome further comprises a recess around the opening and the light emitting device comprises…d2+1

›21.↳ 1The LED light source of claim 1 , wherein the light emitting device is devoid of an encapsulant lens.d2

›9.independentA sheet of light emitting diode LED light sources, comprising: a sheet of lens structures, each lens structure having a hemispherical dome with a base…+6

›10.independentA method for creating light-emitting diode light sources, comprising: providing a preformed sheet of lens structures in a partially cured physical sta…+5

Classifications

9 codes

IPC · International Patent Classification

Section F — Mechanical engineering; lighting; heating; weapons

F21V19/00
F21V5/00
F21V17/10

Section G — Physics

G02B3/00
G02B19/00

Section H — Electricity

H01L25/075
H01L33/60
H01L33/62
H01L33/58

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File wrapper

Pendency

4.6 y

1,682 days filing → grant

Office actions

non-final + final

Responses

1 RCE

Examiner

Peggy Neils

art unit 2875 · TC 2800

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Citations: 40 back · 0 forward

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Priority chain

2 priority documents

Priority

23 Jan 2014

earliest claimed

›Priority documents — 2

Type	Document	Date
provisional	US 61930586	23 Jan 2014
related publication	US 20160341852 A1	24 Nov 2016

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