Device comprising at least one wavelength converter, light module and lighting device for an automotive vehicle comprising such a device

• Main Authors: Courcier, Marine, Albou, Pierre
• Format: Patent
• Language: English
• Published: 07.05.2019
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; DEVICES USING STIMULATED EMISSION; ELECTRICITY; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

An optical device comprising: an optical element for converting wavelength formed from a first optical medium having a first refractive index. The converter element receives an incident light beam at a first face and converts it into a converted light beam. The reflective optical element, positioned on a second face of the converter is configured to reflect the converted light beam. The optical device comprises a primary optical element formed from a second optical medium having a second refractive index substantially identical to the first refractive index. A first face of the primary optical element being positioned in proximity to the first face of the converter element, the primary optical element receives the incident light beam and transmits it to the converter. A second face of the primary optical element forms an output face for outputting the converted light beam to minimize parasitic reflections of the converted light beam off itself.