Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Rolf Wester"'
Publikováno v:
Next Materials, Vol 6, Iss , Pp 100411- (2025)
Gas diffusion layers (GDLs) are vital parts for the performance of proton-exchange membrane fuel cells (PEMFCs). In many cases, they are made of Carbon-Carbon Composite Paper (CCCP), which consists of carbon fibers and a carbonized binder material. T
Externí odkaz:
https://doaj.org/article/b29158d6975c4ace855620e5a5faf473
Autor:
Annika Völl, Jacqueline Dahlmanns, Peter Loosen, Rolf Wester, Jochen Stollenwerk, Carlo Holly
Publikováno v:
Illumination Optics VI.
Freeform optics are used to create complex application-adapted illuminance distributions due to their high number of adjustable degrees of freedom. As with conventional optics, this can result for some applications in large optics that exceed the ava
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fa82fe5dbf7a0001d36aa1a29382498
https://doi.org/10.1117/12.2600221
https://doi.org/10.1117/12.2600221
This book covers the application technology of lasers, focusing more on the vast range of processes than on individual applications, in order to motivate and enable future innovations. The physical basics are presented in the first half of the book.
Freeform optics generating specific irradiance distributions have been used in various applications for some time now. While most freeform optics design algorithms assume point sources or perfectly collimated light, the search for algorithms for non-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::148a819ab4e47213729a11c657e37004
https://publica.fraunhofer.de/handle/publica/265232
https://publica.fraunhofer.de/handle/publica/265232
Publikováno v:
Optics & Laser Technology. 108:583-591
In laser materials processing the intensity distribution of the laser beam strongly influences the spatial and temporal temperature profile that is induced within the treated material and therefore the shape of the heat influenced zone. As a conseque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9092326904c0abe6991532f231129bd
https://doi.org/10.1016/j.optlastec.2018.07.048
https://doi.org/10.1016/j.optlastec.2018.07.048
Publikováno v:
Advanced Optical Technologies 8(3/4), 279-287 (2019). doi:10.1515/aot-2018-0071 special issue: "3D Lithography / Guest Editors: Robert Kirchner and Jan Taniguchi"
Advanced Optical Technologies (2019). doi:10.1515/aot-2018-0071
Published by De Gruyter, Boston, Mass.
Published by De Gruyter, Boston, Mass.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47abd4947ba43e5ab67039edd19cf95d
https://publications.rwth-aachen.de/record/761769
https://publications.rwth-aachen.de/record/761769
Density estimation in optical phase space for optimizing micro-optical elements on freeform surfaces
Publikováno v:
Computational Optics II.
further shape or diffuse the light distribution (e.g. in non-imaging luminaires or automotive headlights). While the geometry can be described in a parametric form by mapping the micro-optical features onto an underlying smooth freeform surface, ray-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0265ba44cea7ee883f4685ea0ef77d42
https://doi.org/10.1117/12.2313487
https://doi.org/10.1117/12.2313487
Publikováno v:
Illumination Optics V.
Free-form optics have been proven to be a very powerful and efficient illumination strategy with applications ranging from automotive and architecture illumination to laser beam shaping. State of the art free-form optics design methods assume that th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd81930b94d6ba37181f9d8ceb568ccb
https://doi.org/10.1117/12.2311995
https://doi.org/10.1117/12.2311995
Autor:
Axel Bäuerle, Rolf Wester
Publikováno v:
aot. 2:301-311
The ever-increasing use of LED as a solid-state light source in general and specialized lighting has pushed the field of optics further for illumination towards sophistication and high precision. In this paper, we provide an overview of this domain,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a9e7a76692aa0c94dacf2cab2e46450
https://doi.org/10.1515/aot-2013-0028
https://doi.org/10.1515/aot-2013-0028
Autor:
Rolf Wester
Publikováno v:
aot. 2:247-255
The development of optical systems today is strongly supported by computer simulations. Computer ray tracing tools are well established in the field of geometrical optics for designing objectives, light channels, etc. Ray tracing is conceptually quit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92eb20c21f140760e507d676ceba4c9a
https://doi.org/10.1515/aot-2012-0060
https://doi.org/10.1515/aot-2012-0060