Design, manufacturing and experimental validation of a bonded dual-component microstructured system for vertical light emission
| Autor: | Per Magnus Kristiansen, Andreas Neyer, Jerome Werder, Christian Rytka, Michael Jakubowsky |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science business.industry 02 engineering and technology Backlight 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences Electronic Optical and Magnetic Materials Planar Hardware and Architecture Component (UML) 0103 physical sciences Optoelectronics Undercut Light emission Surface layer Electrical and Electronic Engineering 0210 nano-technology Glass transition business |
| Zdroj: | Microsystem Technologies. 26:2087-2093 |
| ISSN: | 1432-1858 0946-7076 |
| DOI: | 10.1007/s00542-020-04767-z |
| Popis: | This article presents a bonded dual-component microstructured planar device made of acrylic glass for vertical light emission. It features optical, cone-like undercut microstructures for efficient illumination from a light guiding plate. This microstructured light guide is designed with the help of numerical raytracing simulations for the use as an innovative luminaire for room lighting. It can also find application in display technology for efficient backlight units. To realize such undercut microstructures in acrylic glass, a variothermal injection molding process, complemented by an ultraviolet radiation assisted thermal bonding procedure is introduced. By modifying the glass transition temperature of a thin surface layer of the microstructures the undercut microstructures can be bonded thermally to a light guiding plate without any glue or solvent, while the shape of the microstructures is perfectly preserved. Measurements verify the high bonding quality and confirm the good correspondence between measured light emission and ideal optical simulations. |
| Databáze: | OpenAIRE |
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