Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Guillaume P. Butel"'
Publikováno v:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation.
Large telescope mirrors are typically measured using interferometry, which can achieve measurement accuracy of a few nanometers. However, applications of interferometry can be limited by small dynamic range, sensitivity to environment, and high cost.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::112bd02950940e5b2be200b1102f01b4
https://doi.org/10.1117/12.2057726
https://doi.org/10.1117/12.2057726
Publikováno v:
Applied optics. 53(5)
Deflectometry is widely used to accurately calculate the slopes of any specular reflective surface, ranging from car bodies to nanometer-level mirrors. This paper presents a new deflectometry technique using binary patterns of increasing frequency to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62cdb46a72fd367a2fd01d0e388acbb5
https://pubmed.ncbi.nlm.nih.gov/24663273
https://pubmed.ncbi.nlm.nih.gov/24663273
Publikováno v:
SPIE Proceedings.
We present a fast and ambiguity-free method for slope measurement of reflective optical elements based on reflectometry. This novel reflectometric method applies triangulation to compute the slope based off projected patterns from an LCD screen, whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22f7bf47461a4d335fc4a289b82f84c0
https://doi.org/10.1117/12.928973
https://doi.org/10.1117/12.928973
Autor:
Blain H. Olbert, H. Angus MacLeod, Cheryl E. Kennedy, Guillaume P. Butel, J. Roger P. Angel, Blake Coughenour
Publikováno v:
SPIE Proceedings.
This paper reports methods developed to maximize the overall reflectance second-surface silvered glass. The reflectance at shorter wavelengths is increased with the aid of a dielectric enhancing layer between the silver and the glass, while at longer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08a15d8b26b2887b024baa8e4af8a081
https://doi.org/10.1117/12.894373
https://doi.org/10.1117/12.894373
Publikováno v:
Renewable Energy and the Environment.
Concentrator system conversion efficiency may be characterized by using measurements of the optical components. Techniques of characterizing radiometric throughput via geometric ray shadowing, optical efficiency, and cell efficiency are presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::894a7b74e5f29f8aca54d8236f098d13
https://doi.org/10.1364/ose.2011.srwc5
https://doi.org/10.1364/ose.2011.srwc5
Publikováno v:
Renewable Energy and the Environment.
This paper presents a novel design of a solar secondary optics used in a dish-based HCPV system at 1000x. Different optimizations were conducted as well as experiments to determine its optimum configuration.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4dd025f3ae7addae67f07676f5fe579
https://doi.org/10.1364/ose.2011.srwc3
https://doi.org/10.1364/ose.2011.srwc3
Publikováno v:
Optical Engineering. 54:025111
Deflectometry is a powerful metrology technique that uses off-the-shelf equipment to achieve nanometer-level accuracy surface measurements. However, there is no portable device to quickly measure eyeglasses, lenses, or mirrors. We present an entirely
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d60106510495ad7c441eebb9a9e6542b
https://doi.org/10.1117/1.oe.54.2.025111
https://doi.org/10.1117/1.oe.54.2.025111
Autor:
Yuhao Wang, Run Huang, Alejandro Maldonado, James H. Burge, Peng Su, Tianquan Su, Robert E. Parks, Guillaume P. Butel, Manal Khreishi, Margaret Z. Dominguez
Publikováno v:
Optical Engineering. 53:031305
A software configurable optical test system (SCOTS) based on deflectometry was developed at the University of Arizona for rapidly, robustly, and accurately measuring precision aspheric and freeform surfaces. SCOTS uses a camera with an external stop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::612bbbcae3b354d85daef4f4142f5a55
https://doi.org/10.1117/1.oe.53.3.031305
https://doi.org/10.1117/1.oe.53.3.031305
Publikováno v:
Journal of Photonics for Energy. 2:021808
Methods developed to maximize the overall reflectance of the second-surface silvered glass used in concentrating solar power (CSP) and concentrating photovoltaics (CPV) solar systems are reported. The reflectance at shorter wavelengths is increased w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53598976011618622111b147f2f15b12
https://doi.org/10.1117/1.jpe.2.021808
https://doi.org/10.1117/1.jpe.2.021808