Invention Grant
- Patent Title: Lighting device
-
Application No.: US17553140Application Date: 2021-12-16
-
Publication No.: US11549653B2Publication Date: 2023-01-10
- Inventor: Barbara Muelders , Floris Maria Hermansz Crompvoets , Benno Spinger
- Applicant: Lumileds LLC
- Applicant Address: US CA San Jose
- Assignee: Lumileds LLC
- Current Assignee: Lumileds LLC
- Current Assignee Address: US CA San Jose
- Agency: Servilla Whitney LLC
- Priority: EP19193525 20190826
- Main IPC: F21K9/90
- IPC: F21K9/90 ; F21S41/153 ; H01L33/62 ; F21Y105/16 ; F21Y115/10

Abstract:
A lighting device according to the invention comprises at least one semiconductor layer; at least one light emission surface comprising an array of high luminance areas configured to emit light at a first local luminance level and low luminance areas configured to emit no light or to emit light at a second local luminance level lower than the first local luminance level; a plurality of semiconductor light emitting devices formed in the semiconductor layer to define the plurality of high luminance areas; wherein the high luminance areas and the low luminance areas are arranged in accordance with a predefined light emission profile of the light emission surface.
Public/Granted literature
- US20220107065A1 Lighting Device Public/Granted day:2022-04-07
Information query