METHOD FOR MANUFACTURING A LIGHT EXTRACTION STRUCTURE FOR A UV LAMP

• Main Authors: CARLSSON JAN-OTTO, NIKONOVA OLESYA
• Format: Patent
• Language: Chinese; English
• Published: 05.02.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SEMICONDUCTOR DEVICES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The present invention generally relates to a method for forming a light extraction layer comprising nanostructures, the method comprising: providing a substrate, the substrate being at least partiallytransparent to UV light; forming a non-aqueous precursor solution comprising fluorine and an alkaline earth metal to form alkaline earth metal difluoride particles; applying the precursor solution onat least a first side of the substrate; drying the substrate at a first temperature for a first period of time; and baking the substrate at a second temperature, higher than the first temperature, for a second period of time, thereby forming a light extraction nanostructure layer comprising alkaline earth metal difluoride nanostructures on the substrate. The present invention also relates to a light extraction structure and to a UV lamp comprising such an extraction structure. 本发明般涉及形成包含纳米结构的光提取层的方法，所述方法包括：提供基底，所述基底对UV光至少部分地透明；形成含氟和碱土金属的非水性前驱体溶液以形成碱土金属二氟化物颗粒；将前驱体溶液施加在基底的至少第侧上；在第温度下干燥基底第时间段；在高于第温度的第二温度下烘烤基底第二时间段，从而在基底上