Results 251 to 260 of about 5,547,320 (286)
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Retinal Distribution of Entoptic Stray Light*
Journal of the Optical Society of America, 1958The primary purpose of this research is to determine, as accurately as possible, the illuminance distribution across the retina of the eye resulting from a small image formed at the back of the eye by nearly collimated light incident upon the cornea, with the illuminance distribution specified over a wide range, including angles close to the image ...
D W, DEMOTT, R M, BOYNTON
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Optimum symmetrical light distributions
Journal of the Institution of Electrical Engineers, 1937Certain symmetrical light distributions described briefly by the author in a previous paper are here considered at greater length. They possess, among other properties, that of producing uniform illumination on the horizontal plane in large lighting systems.
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Secondary light distribution design for LED street light
Proceedings of 2011 International Conference on Electronics and Optoelectronics, 2011The secondary optics design is a critical issue for the light distribution and output efficiency of the LED street light. Traditional light distribution methods are simple but difficult to get high energy efficiency and illumination uniformity together.
null Kai Yang +3 more
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Light Distribution in the Optical Image*
Journal of the Optical Society of America, 1947A method is proposed for obtaining information about the light distribution in an optical image. The characteristic function of the optical system is approximated by a polynomial, containing terms up to the fifth or seventh order. The coefficients of this function having been found, a large number (about 100) of rays from an object point are chosen, so
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Efficient distributed control of light-emitting diode array lighting systems
Optics Letters, 2012We consider illumination rendering with distributed control of a lighting system with an array of light-emitting diodes (LEDs). As low-cost microprocessors become standard components in LED drivers, distributing the computation of the control signals to individual LED drivers becomes attractive.
Jianfei, Dong, Ashish, Pandharipande
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Analysis of light regime in continuous light distributions in photobioreactors
Bioresource Technology, 2011Maximum photobioreactor (PBR) efficiency is a must in applications such as the obtention of microalgae-derived fuels. Improving PBR performance requires a better understanding of the "light regime", the varying irradiance that microalgal cells moving in a dense culture are exposed to.
Celeste, Brindley +2 more
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Light distribution from rectangular sources
Journal of the Franklin Institute, 1946Abstract The rectangular light source is more frequently encountered in engineering practice than any other form. Thus, both for artificial lighting and natural lighting, it is desirable to have convenient methods of obtaining the light distributions produced by rectangular sources.
Parry Moon, Domina Eberle Spencer
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Optimization of Lighting Distribution in Road Lighting Luminaire
2018 20th International Symposium on Electrical Apparatus and Technologies (SIELA), 2018An approach for optimal design of light distribution of road lighting lumrnaire with LEDs as light source is introduced. The highest possible average illuminance is obtained with a given set of LEDs by varying the orientation of each elementary light source. The way of overcoming the large scale problem is described in details as well as some practical
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Photothermal Nanomaterials: A Powerful Light-to-Heat Converter
Chemical Reviews, 2023Ximin Cui, Qifeng Ruan, Xiaolu Zhuo
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Extreme light confinement and control in low-symmetry phonon-polaritonic crystals
Nature Reviews Materials, 2023Martin Wolf +2 more
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