A Lighting Device

Patent No. EP3921574 (titled "A Lighting Device") was filed by Signify Holding on Feb 4, 2020. The application was issued on Oct 5, 2022.

Patent Summary

A lighting device comprises a light generating element and a micro-lens array having a focal plane. The light generating element consists of a first component with a light emitting surface providing a diffuse light output component and a second component comprising at least one array of light sources providing a directional light output component. The light generating element emits a combined light output, formed by the superposition of the diffuse and directional components, toward the micro-lens array. The array of light sources is positioned specifically within the focal plane of the micro-lens array. The device is configured to mimic natural light sources, such as a sun-like virtual image, while maintaining low weight, limited thickness, and a wide viewing range.

Patent Family

Patent Family

Patent Oppositions

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

  • Date

    Description

  • Get instant alerts for new documents

EP3921574

SIGNIFY HOLDING
Application Number
EP20702160A
Filing Date
Feb 4, 2020
Status
Granted And Under Opposition
Sep 2, 2022
Publication Date
Oct 5, 2022