Side-emitting light guide and method for the production thereof

US11520096B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Markus Kappel · Roxheim, DE
• Bernd Hoppe · Ingelheim am Rhein, DE
• Hubertus Russert · Jugenheim, DE
• Lothar Willmes · Obermoschel, DE

Key dates

• Filing date: Sep 4, 2020
• Grant date: Dec 6, 2022
• Expiry date: Sep 4, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/0001
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A light source with a linear appearance is provided. The light source has a flexible light guide that has a homogeneous light emission with high luminance and a emitting light guide. The light emitting guide has a core, in which at least one soul extends, and a transparent cladding that surrounds the core. The core and the cladding are formed from transparent plastic. The core has a higher index of refraction than the cladding. The soul is light-deflecting, light-reflecting, or light-scattering so as to scatter light guided in the light guide and to emit the light through the cladding toward the outside. The soul has a scattering length that is at most twice as large as a maximum cross-sectional dimension of the soul.