Results 241 to 250 of about 176,754 (298)
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Solar Energy, 2010
An expression is given for the transmission of the rectangular-section mirror light pipe. The expression is used to model throughputs for simulated solar conditions over a calender year. It is found that the splaying of a mirror light pipe results in a significant increase in throughputs particularly in winter months.
exaly +2 more sources
An expression is given for the transmission of the rectangular-section mirror light pipe. The expression is used to model throughputs for simulated solar conditions over a calender year. It is found that the splaying of a mirror light pipe results in a significant increase in throughputs particularly in winter months.
exaly +2 more sources
Circularly polarized light at the mirror: Caveats and opportunities [PDF]
Chirality, 2020 AbstractMoving from the simple concept that reflection onto a mirror surface changes the handedness of circularly polarized light, we describe what happens to the emergent polarization in two different cases after reflection on a back mirror. In the first case, a regular emitter is taken into account, where reflection has the effect to destroy the ...
Zinna F., Pescitelli G., Di Bari L.
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Lighted mirror for microneurosurgery
Surgical Neurology, 1995We describe a newly developed, lighted mirror that provides enough luminous intensity to obtain a clear image in deep operative fields under high magnification. Through the initial neurosurgical procedures in which it was tested, the mirror proved particularly useful for inspecting the ventral aspect of the fifth nerve in a microvascular decompression ...
Y, Seki +3 more
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Twisted light in a nonlinear mirror
Optics Letters, 2013Opposite directionality of the Poynting vector and the wave vector, an inherent property of negative index metamaterials (NIMs), was predicted to enable backward phase-matching condition for a second harmonic generation (SHG) process. As a result, such a nonlinear negative index slab acts as a nonlinear mirror.
Mikhail I, Shalaev +2 more
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A light-in light-out micro mirror device
The 13th International Conference on Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS '05., 2005In this paper, we report a new concept of optical MEMS (Micro Electro Mechanical System) devices that could be operated by the incident light and to operate yet another light beam; in other words, a light beam is controlled by another light beam through an optical MEMS mirror.
Y. Yamauchi +4 more
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X-Ray Mirror Assessment With Optical Light
SPIE Proceedings, 1988The imaging capability of a thin foil x-ray mirror has been examined with optical light, using a laser beam and a wide optical parallel beam. These measurements reveal that (1) image broadening due to millimeter scale waviness (orange peel) of the aluminum substrate, partly intrinsic to the foil and partly caused during the foil treatment, is 1.2-min ...
H, Kunieda, P J, Serlemitsos
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Optimization of light‐valve mirrors
Journal of the Society for Information Display, 1998Abstract— A mirror structure for reflective Si‐based light valves was fabricated using chemical‐mechanical polishing and a thin 150‐nm Al(Cu)/Ti mirror to minimize hillock formation. The use of chemical‐mechanical polishing planarization resulted in only a 1% loss in reflectivity from topography under the mirrors.
E. G. Colgan +8 more
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AIP Conference Proceedings, 2007
The NSLS X28C white‐light beamline is being outfitted with a focusing mirror in order to increase, as well as control, the x‐ray intensity at the sample position. The new mirror is a 50 mm × 100 mm × 1100 mm single crystal silicon cylindrical 43.1mm radius substrate bendable to a toroid from infinite to 1200 m radius.
Eric Johnson +7 more
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The NSLS X28C white‐light beamline is being outfitted with a focusing mirror in order to increase, as well as control, the x‐ray intensity at the sample position. The new mirror is a 50 mm × 100 mm × 1100 mm single crystal silicon cylindrical 43.1mm radius substrate bendable to a toroid from infinite to 1200 m radius.
Eric Johnson +7 more
openaire +1 more source
Cylindrical mirror light pipes
Solar Energy Materials and Solar Cells, 1995Abstract The interplays between design and material parameters in a cylindrical mirror light pipe are discussed. The transmission is calculated exactly using a ray optics method. The result is an integral equation involving the mirror light pipe parameters, reflectivity and aspect ratio, and the angle of incidence of the incident radiation.
P.D. Swift, G.B. Smith
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Calibrating light sources by using a planar mirror
Journal of Electronic Imaging, 2011Light source calibration is an important issue in many computer vision fields such as photometric stereo and shape from shading. Spheres, with either diffuse or specular reflections, are frequently deployed as calibration objects to recover the direction and intensity of light source from images.
Hui-Liang Shen, Yue Cheng
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