Optical elements composed of flame-resistant plastics

The invention includes optical elements for applications in regions with stringent fire safety regulations, whose color rendering index Ra is at least 97 at a thickness of 4 mm, and which are flame-retardant according to DIN 60332 and are mainly composed of a plastic having at least one structural e...

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Bibliographische Detailangaben
Hauptverfasser:	SCHNELL RUPERT, ZWICKEL GERHARD, GAYDOUL EKKEHARD
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention includes optical elements for applications in regions with stringent fire safety regulations, whose color rendering index Ra is at least 97 at a thickness of 4 mm, and which are flame-retardant according to DIN 60332 and are mainly composed of a plastic having at least one structural element selected from the group consisting of sulphones, sulphides, ethers, esters, ketones and imides.