Optoelectronic device with light-emitting diodes and an improved radiation pattern

US10115864B2 · kind B2 · utility

Assignees

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR
• ALEDIA · FR

Inventors

• Adrien Gasse · Grenoble, FR
• Bernard Andre · Grenoble, FR
• Hubert Bono · Grenoble, FR
• Xavier Hugon · Amilly, FR

Key dates

• Filing date: Mar 27, 2015
• Grant date: Oct 30, 2018
• Expiry date: Mar 27, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/813

Abstract

An optoelectronic device provided with a support including a face having at least one concave or convex portion, the amplitude of the sagitta of said portion being higher than 1/20th of the chord of the portion, and light-emitting diodes arranged on the portion, each light-emitting diode including a cylindrical, conical or frustoconical semiconductor element in contact with the portion, the amplitude of the sagitta of the contact surface between each semiconductor element and the portion being lower than or equal to 0.5 um.