Results 241 to 250 of about 450,897 (302)
An Early Record of Photochemotherapy for Vitiligo by Rhazes (865–925 ce) in Liber Continens
JEADV Clinical Practice, EarlyView.
Alireza Tavakkoli
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Review of Scientific Instruments, 1964
A flexible light pipe was devised for coupling between a photomultiplier tube and a scintillator. The light pipe comprises a convoluted Neoprene rubber tube coated on the inside with titanium oxide pigment in a vinyl base and filled with glycerine. The glycerine is separated from the pliotomultiplier by a short Lucite section.
Neville W. Reay, Larry M. Preston
openaire +1 more source
A flexible light pipe was devised for coupling between a photomultiplier tube and a scintillator. The light pipe comprises a convoluted Neoprene rubber tube coated on the inside with titanium oxide pigment in a vinyl base and filled with glycerine. The glycerine is separated from the pliotomultiplier by a short Lucite section.
Neville W. Reay, Larry M. Preston
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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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
openaire +1 more source
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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Applied Energy, 2004
Abstract Light pipes (such as tubular lighting) are simple structures that allow the transmission of daylight from outside to inside a room. They are an increasingly popular product, with CIBSE Building Journal (September 2003) stating that there are now an estimated three million pipes installed throughout the globe.
David Jenkins, Tariq Muneer
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Abstract Light pipes (such as tubular lighting) are simple structures that allow the transmission of daylight from outside to inside a room. They are an increasingly popular product, with CIBSE Building Journal (September 2003) stating that there are now an estimated three million pipes installed throughout the globe.
David Jenkins, Tariq Muneer
openaire +1 more source
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
openaire +2 more sources
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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Archives of Ophthalmology, 1996
Modern vitreous surgery has been greatly facilitated, if not made possible, by the intraocular fiberoptic light pipe. In its current state, the light pipe is a straight, bright illuminator that allows direct visualization of what it shines on. 1 This is limiting when used with small opacities that have a refractive index similar to their surroundings ...
P J, Kertes, G A, Peyman
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Modern vitreous surgery has been greatly facilitated, if not made possible, by the intraocular fiberoptic light pipe. In its current state, the light pipe is a straight, bright illuminator that allows direct visualization of what it shines on. 1 This is limiting when used with small opacities that have a refractive index similar to their surroundings ...
P J, Kertes, G A, Peyman
openaire +2 more sources