IP Library Granted Patent US 10,916,686
Granted Patent B2
US 10,916,686 · App. 15/033,664 · Granted Feb 9, 2021

Optoelectronic component, optoelectronic arrangement, method of producing an optical element, and method of producing an optoelectronic component

Inventors: Thomas Schwarz (Regensburg, DE); Frank Singer (Regenstauf, DE); Alexander Linkov (Regensburg, DE); Stefan Illek (Donaustauf, DE); Wolfgang Moench (Pentling, DE)
Assignee: OSRAM OLED GmbH
H01L33/58H01L2933/0058H01L2933/0091
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Quick Facts
Patent No.
US 10,916,686
App. No.
15/033,664
Granted
Feb 9, 2021
Kind
B2
Abstract

An optoelectronic component includes an optoelectronic semiconductor chip having a radiation-emitting face; and an optical element arranged over the radiation-emitting face, wherein the optical element includes a material in which light-scattering particles are embedded, and a concentration of the embedded light-scattering particles has a gradient forming an angle not equal to 90° with the radiation emission face.

Claims (30)

1. A method of producing an optoelectronic component comprising:

producing an optical element by a method comprising:

providing a layer of a material with embedded light-scattering particles;

allowing the embedded light-scattering particles to sink in the material so that a concentration gradient is formed;

curing the material of the layer to form a block;

dividing the block to obtain an optical element with a lower side, the gradient forming an angle not equal to 90° with the lower side;

providing an optoelectronic semiconductor chip having a radiation emission face; and

arranging the optical element over the radiation emission face.

2. A method of producing an optical element comprising:

forming a block of material with embedded light-scattering particles, a concentration of the embedded light-scattering particles having a gradient;

dividing the block in order to obtain an optical element with a lower side, the gradient making an angle not equal to 90° with the lower side,

wherein the following steps are carried out in order to form the block:

providing a first layer of the material and a second layer of the material, the first layer having a first concentration of embedded light-scattering particles and the second layer having a second concentration of embedded light-scattering particles; and

flat bonding the first layer and the second layer to form the block.

3. The method as claimed in claim 2 , wherein the block is formed from more than two layers.

4. A method of producing an optoelectronic component comprising:

producing an optical element by the method as claimed in claim 2 ;

providing an optoelectronic semiconductor chip having a radiation emission face; and

arranging the optical element over the radiation emission face.

5. A method of producing an optical element comprising:

forming a block of a material with embedded light-scattering particles, a concentration of the embedded light-scattering particles having a gradient;

dividing the block in order to obtain an optical element with a lower side, the gradient making an angle not equal to 90° with the lower side,

wherein the following step is carried out in order to form the block:

coextruding a first layer of a material and a second layer of the material, the first layer having a first concentration of embedded light-scattering particles and the second layer having a second concentration of embedded light-scattering particles;

the first layer and the second layer being coextruded while lying on one another in order to form the block.

6. The method as claimed in claim 5 , wherein the block is formed from more than two layers.

7. A method of producing an optoelectronic component comprising:

producing an optical element by the method as claimed in claim 5 ;

providing an optoelectronic semiconductor chip having a radiation emission face; and

arranging the optical element over the radiation emission face.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2020
From: OSRAM OPTO SEMICONDUCTORS GMBH
To: OSRAM OLED GMBH
Reel/Frame 051464/0504 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 28, 2016
From: SCHWARZ, THOMAS; SINGER, FRANK; LINKOV, ALEXANDER; ILLEK, STEFAN; MÖNCH, WOLFGANG
To: OSRAM OPTO SEMICONDUCTORS GMBH
Reel/Frame 039029/0383 →