Results 241 to 250 of about 452,581 (299)
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Loss mechanisms in optical light pipes
Applied Optics, 1992A geometrical optics approach is used to develop a theoretical model for analyzing loss mechanisms in optical light pipes. Five mechanisms are identified: intrinsic absorption, bulk scattering, losses that are due to roughness at the core-cladding interface, losses that are due to large-scale defects at the core-cladding interface, and losses that are ...
J T, Remillard, M P, Everson, W H, Weber
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Transport of Light by Optical Fibers and Light Pipes
2014The principle of propagation of light rays in a glass cylinder is the base of the technology of optical fibers. The fabrication of an optical fiber requires a coating (fiber cladding), whose refractive index is lower than that of the central part (fiber core).
Francini F, Fontani D, Sansoni P
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Science, 2010
As data transmission rates continue to increase, optoelectronic engineers are developing techniques to deal with the approaching “capacity crunch.”
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As data transmission rates continue to increase, optoelectronic engineers are developing techniques to deal with the approaching “capacity crunch.”
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Simple light pipes for the Stereoscan
Journal of Physics E: Scientific Instruments, 1973Electron detectors have been made both for emissive and for transmission studies in the scanning electron microscope by depositing scintillation/phosphor material as a thin film on preshaped perspex rods. Compared with typical commercially available units, the light pipes are of low cost, comparable efficiency and can have a good service life.
P E Secker, A Rees, C C Sanger
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Elektro : stručni časopis za elektrotehniku, 1998
Pod stalnim pritiskom potrage za što ekonomičnijim rasvjetnim tijelima, neprestano se razvijaju nove tehnologije koje pak omogućuju izradu sve boljih sustava rasvjete. Kako bi i prostori u hrvatskoj zasjali novim, ekonomičnijim, a istodobno okolini zdravijim i sigurnijim svjetlom, donosimo vam prikaz posve novog i sofisticiranog sustava rasvjete ...
Košmeri, Zoran, Težak, Nenad
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Pod stalnim pritiskom potrage za što ekonomičnijim rasvjetnim tijelima, neprestano se razvijaju nove tehnologije koje pak omogućuju izradu sve boljih sustava rasvjete. Kako bi i prostori u hrvatskoj zasjali novim, ekonomičnijim, a istodobno okolini zdravijim i sigurnijim svjetlom, donosimo vam prikaz posve novog i sofisticiranog sustava rasvjete ...
Košmeri, Zoran, Težak, Nenad
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Nature Photonics, 2007
Fibre-to-the-home (FTTH) technology, which provides a high-speed optical-data link directly into the house or apartment, is now becoming very popular in Japan and Korea. Adarsh Sandhu spoke to the FTTH Council Asia Pacific about the status of the technology in the region.
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Fibre-to-the-home (FTTH) technology, which provides a high-speed optical-data link directly into the house or apartment, is now becoming very popular in Japan and Korea. Adarsh Sandhu spoke to the FTTH Council Asia Pacific about the status of the technology in the region.
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Journal of the Optical Society of America, 1976
Using mode theory, we calculate the crosstalk between overmoded optical fibers or light pipes when one fiber is illuminated by a focused collimated beam. The presence of many modes allows the summation of crosstalk power between individual modes to be converted to an integral expression.
Allan W. Snyder, Peter McIntyre
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Using mode theory, we calculate the crosstalk between overmoded optical fibers or light pipes when one fiber is illuminated by a focused collimated beam. The presence of many modes allows the summation of crosstalk power between individual modes to be converted to an integral expression.
Allan W. Snyder, Peter McIntyre
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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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Monitoring of a light-pipe system
Solar Energy, 2007Abstract Natural light is an important element in visual comfort and it sometimes influences the quality of vision. The effect of daylight on the human biological cycles and possible physiological alterations in the absence of natural light during the day are well-known.
M. Paroncini, B. Calcagni, F. Corvaro
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Applied Physics Letters, 1976
A simple theory and experimental results are presented which describe the efficient transport of soft x radiation through hollow glass tubing by means of multiple grazing-incidence internal reflection. It is shown that a large number of such tubes can be used to remotely image weak plasma sources of soft x radiation. The efficiency of transport through
D. Mosher, S. J. Stephanakis
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A simple theory and experimental results are presented which describe the efficient transport of soft x radiation through hollow glass tubing by means of multiple grazing-incidence internal reflection. It is shown that a large number of such tubes can be used to remotely image weak plasma sources of soft x radiation. The efficiency of transport through
D. Mosher, S. J. Stephanakis
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