Light emitting device

US10319889B2 · kind B2 · utility

Assignee

• NICHIA CORPORATION · JP

Inventors

• Taiki Yuasa · Tokushima, JP
• Tomohisa Kishimoto · Anan, JP

Key dates

• Filing date: Dec 6, 2017
• Grant date: Jun 11, 2019
• Expiry date: Dec 6, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/882

Abstract

A light emitting device includes a light emitting element having a light emitting surface from which the light emitting element is configured to emit a first light having a first peak wavelength. A light transform layer is provided on the light emitting surface to transform the first light to a second light having a second peak wavelength longer than the first peak wavelength. A light-transmissive layer is provided on the light transform layer and includes a first surface that has a substantially flat shape and that is opposite to the light emitting surface and a second surface connected to the first surface and having a curved shape to surround the light emitting element. A reflecting film is provided between the light transform layer and the light-transmissive layer to extend along the first surface and the second surface so as to reflect the first light and to transmit the second light.