TY - PAT A1 - Speit, Burkard A1 - Wolff, Silke A1 - Döhring, Thorsten T1 - Lead-containing space glass, its production and its use N2 - The invention relates to a lead-containing space glass, its production and its use. The optical glasses have increased refractive indices and are useful for making space-saving and light-weight imaging optics with lenses of different glass types for use in different objects travelling in space. The optical glasses are suitable for production of optics having low total weight, which is decisive for space applications. These space glasses have high UV- and VIS-transmittance in a range of between 300 and 800 nm and high stability of transmittance over a period of years, because their aging has been greatly limited. KW - Optisches Glas KW - Raumfahrt KW - glass KW - space KW - satellite Y1 - 2015 UR - http://worldwide.espacenet.com/publicationDetails/biblio?CC=CN&NR=101928103B&KC=B&FT=D&ND=4&date=20150318&DB=EPODOC&locale=en_EP ER - TY - PAT A1 - Döhring, Thorsten A1 - Mitra, Ina T1 - OPTICAL COMPONENT N2 - To provide an optically uniform quality component which is a large size optical transparency component such as a lenz, prism, mirror or the like. ;SOLUTION: The optical component comprises an optical glass which comprises 35 to 70 wt.% SiO2, 17 to 35 wt.% Al2O3, 3 to 17 wt.% P2O5, 0 to 6 wt.% Li2O, 0.5 to 4 wt.% MgO, 0.5 to 3 wt.% ZnO, a maximum of 1 wt.% CaO, a maximum of 0.5 wt.% BaO, 0.5 to 6 wt.% TiO2, 0.5 to 3 wt.% ZrO2, 0 to 1 wt.% Na2O, 0 to 1 wt.% K2O, a maximum of 2 wt.% of refining agents, and a maximum of 1 wt.% of a coloring oxide and other impurities, and has at least 50 mm maximum thickness. KW - glass KW - ceramic KW - optic KW - transmission KW - Optisches Glas Y1 - 2012 UR - http://worldwide.espacenet.com/publicationDetails/biblio?CC=JP&NR=4966271B2&KC=B2&FT=D&ND=4&date=20120704&DB=EPODOC&locale=en_EP ER - TY - PAT A1 - Speit, Burkard A1 - Wolff, Silke A1 - Döhring, Thorsten T1 - Verre spatial contenant du plomb, ses production et utilisation N2 - The optical glasses have increased refractive indices and are useful for making space-saving and light-weight imaging optics with lenses of different glass types for use in different objects travelling in space. The optical glasses are suitable for production of optics having low total weight, which is decisive for space applications. These space glasses have high UV- and VIS-transmittance in a range of between 300 and 800 nm and high stability of transmittance over a period of years, because their aging has been greatly limited. KW - glass KW - space KW - satellite KW - Optisches Glas KW - Raumfahrt Y1 - 2014 UR - http://worldwide.espacenet.com/publicationDetails/biblio?CC=FR&NR=2946976B1&KC=B1&FT=D&ND=4&date=20140214&DB=EPODOC&locale=en_EP ER - TY - PAT A1 - Schäfer, Martin A1 - Döhring, Thorsten A1 - Seibert, Volker A1 - Westerhoff, Thomas A1 - Nowak, Hans-Joachim T1 - Mirror supporting substratum for e.g. terrestrial observation, has spacers defined between one set of recesses and/ or two set of recesses, where part of one set of spacers has width different from width of part of other set of spacers N2 - The substratum (1) has two set of recesses (2, 3, 4, 7, 8) formed in a rear face (16), where the substratum is produced from a monolithic block of material including a lithium- aluminum- silicon type glass ceramic material. Set of spacers (5, 6, 9, 10) are defined between one set of recesses (2, 3, 4) and/ or the two set of recesses. A part of one set of spacers (5, 6) defined by the former recesses has width different from width of a part of other set of spacers (9, 10) defined by the latter recesses. KW - astronomy KW - mirror KW - lightweight KW - Zerodur KW - ceramic KW - Spiegeloptik KW - Raumfahrt Y1 - 2015 UR - http://worldwide.espacenet.com/publicationDetails/biblio?CC=FR&NR=2935178B1&KC=B1&FT=D&ND=5&date=20150313&DB=EPODOC&locale=de_EP ER - TY - PAT A1 - Schäfer, Martin A1 - Döhring, Thorsten A1 - Seibert, Volker A1 - Westerhoff, Thomas A1 - Nowak, Hans-Joachim T1 - Substrate for a mirror support with reduced weight as well as mirror with reduced-weight mirror support N2 - Diesen Text übersetzen Erste Seite Clipping von US8911098 (B2) In a substrate, particularly in a substrate for a mirror support, in which recesses are introduced in one surface, preferably in the back side of the substrate, as a result of which, in particular, bridging pieces are defined between the recesses, in order to achieve the situation that despite a reduced weight, a high rigidity still remains, which means only a slight sagging after its correct uptake in a holding device provided for it, it is provided that at least one first portion of the bridging pieces has a width that is different than a second portion of the bridging pieces. KW - astronomy KW - mirror KW - lightweight KW - Zerodur KW - ceramic KW - Spiegeloptik KW - Raumfahrt Y1 - 2014 UR - http://worldwide.espacenet.com/publicationDetails/biblio?CC=US&NR=8911098B2&KC=B2&FT=D&ND=5&date=20141216&DB=EPODOC&locale=de_EP ER - TY - PAT A1 - Schäfer, Martin A1 - Döhring, Thorsten A1 - Seibert, Volker A1 - Westerhoff, Thomas A1 - Nowak, Hans-Joachim T1 - SUBSTRATE FOR MIRROR SUPPORT WITH REDUCED WEIGHT AND MIRROR PROVIDED WITH MIRROR SUPPORT WITH REDUCED WEIGHT N2 - To provide a substrate for a mirror support, in which there still remains a high rigidity, despite a reduced weight. ;SOLUTION: In a substrate, particularly in a substrate for a mirror support, in which recesses are introduced in one surface, preferably in the back side of the substrate, as a result of which, in particular, bridging pieces are defined between the recesses, in order to achieve the situation in which despite a reduced weight, a high rigidity still remains, which means only a slight sagging after the correct take-in of the substrate in a holding device provided for it, at least one first position of the bridging pieces includes a width that is different from a second portion of the bridging pieces. KW - astronomy KW - mirror KW - lightweight KW - Zerodur KW - ceramic KW - Spiegeloptik KW - Raumfahrt Y1 - 2013 UR - http://worldwide.espacenet.com/publicationDetails/biblio?CC=JP&NR=5244050B2&KC=B2&FT=D&ND=4&date=20130724&DB=EPODOC&locale=de_EP ER - TY - PAT A1 - Speit, Burkard A1 - Wolff, Silke A1 - Döhring, Thorsten T1 - Lead-containing space glass, its production and use N2 - The space glasses have a composition, in wt. % based on oxide content, including SiO2, 12-45; B2O3, 0-4; Al2O3, 0-4; TiO2, 0-5; PbO, 50-82; Na2O, 0-4; K2O, 0-8; and at least 0.1 wt. % of a total amount of at least three doping agents selected from CeO2, MoO3, Bi2O3, WO3, Ag2O, SnO2, Sb2O3 and As2O3. Light-weight and space-saving optical systems for outer space applications can be made with these space glasses, which have high UV- and VIS-transmittance and high transmittance stability, because of their high radiation resistance based on their dopant content. A preferred process for making the space glass includes melting the above-stated oxide ingredients in a quartz crucible at 1050 DEG C. to 1200 DEG C. to form a melt and refining the melt at 1230 DEG C. to 1350 DEG C. KW - glass KW - space KW - satellite KW - Optisches Glas KW - Raumfahrt Y1 - 2014 UR - http://worldwide.espacenet.com/publicationDetails/biblio?CC=US&NR=8431501B2&KC=B2&FT=D&ND=5&date=20130430&DB=EPODOC&locale=en_EP ER - TY - PAT A1 - Speit, Burkard A1 - Döhring, Thorsten A1 - Wolff, Silke T1 - Lead-containing space glass, its production and use N2 - The space glass has a composition, in wt. % based on oxide content, of: SiO2, 5-65; B2O3, 0-40; Al2O3, 0-12; PbO, 25-50; Na2O 0-8; K2O, 0-20; Sigma alkali metal oxides, at least 0.25; and at least 0.1 wt. % of a total amount of three or more doping agents selected from CeO2, MoO3, Bi2O3, WO3, Ag2O, SnO2, Sb2O3 and As2O3. In addition, it contains one or more of the following doping agents in the following amounts: at most 1 wt. %, CeO2; at most 0.02 wt. %, As2O3; at most 0.3 wt. %, Sb2O3; and at most 0.5 wt. %, SnO2. Light-weight optical systems for space are made from it, because of its high radiation resistance. A preferred process for making space glass includes melting the oxide starting ingredients at 1050 DEG C. to 1200 DEG C. to form a melt and refining the melt at 1230 DEG C. to 1350 DEG C. KW - glass KW - space KW - satellite KW - Optisches Glas KW - Raumfahrt Y1 - 2013 UR - http://worldwide.espacenet.com/publicationDetails/biblio?CC=US&NR=8431500B2&KC=B2&FT=D&ND=4&date=20130430&DB=EPODOC&locale=en_EP ER - TY - PAT A1 - Speit, Burkard A1 - Döhring, Thorsten A1 - Wolff, Silke T1 - Lead-containing space glass, its production and use N2 - The optical glasses have increased refractive indices and are useful for making space-saving and light-weight imaging optics with lenses of different glass types for use in different objects travelling in space. The optical glasses are suitable for production of optics having low total weight, which is decisive for space applications. These space glasses have high UV- and VIS-transmittance in a range of between 300 and 800 nm and high stability of transmittance over a period of years, because their aging has been greatly limited. KW - glass KW - space KW - satellite KW - Optisches Glas KW - Raumfahrt Y1 - 2014 UR - http://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140214&DB=EPODOC&locale=en_EP&CC=FR&NR=2946977B1&KC=B1&ND=4 ER - TY - JOUR A1 - Heinlein, Sven A1 - Hahn, Stefan A1 - Zindler, Klaus T1 - Control methods for automated testing of preventive pedestrian protection systems JF - International Journal of Vehicle Systems Modelling and Testing KW - Fahrerassistenzsystem KW - Fußgänger Y1 - 2015 VL - 10 IS - 2 SP - 127 EP - 147 PB - Inderscience Enterprises ER -