Results 271 to 280 of about 440,715 (311)
Some of the next articles are maybe not open access.
Light and the distribution of time
EPL (Europhysics Letters), 2015Light allows to time travel: light from the Universe offers the possibility to look back to its ancestral epochs, at the very first moments. Nowadays light is also a carrier that allows time to travel, bringing atomic clocks references with the most advanced precision.
CALONICO, DAVIDE +2 more
openaire +1 more source
Light Distribution Photometry in Japan
Applied Optics, 1971Of the representative distribution photometers constructed in Japan, a large-size photometer without mirrors, a compensation method for the variation in light output of a lamp, and an automatic recording of a sinusoidal isocandela diagram are illustrated.
openaire +2 more sources
Field Crops Research, 2011 To enhance eco-physiological and modelling studies, we quantified vertical distributions of light and nitrogen in canopies of three Mediterranean bio-energy crops: sunflower (Helianthus annuus), kenaf (Hibiscus cannabinus) and cynara (Cynara cardunculus).
Xinyou Yin +2 more
exaly +2 more sources
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
openaire +2 more sources
Distributed Lighting Systems: Uniform Light Delivery
SAE Technical Paper Series, 1995<div class="htmlview paragraph">High efficiency distributed lighting systems for automotive vehicles are now possible with the development of high brightness Xenon Metal Halide light sources and the advent of new low loss, low cost light pipes. In principle, all of the lighting functions in a vehicle can now be accomplished with one or two such ...
W.J. Cassarly +2 more
openaire +1 more source
2016
This chapter describes (1) how light distributes within a leaf canopy and (2) light interception by leaves. Basic equations are shown so that readers can make light distribution models by themselves.
openaire +1 more source
This chapter describes (1) how light distributes within a leaf canopy and (2) light interception by leaves. Basic equations are shown so that readers can make light distribution models by themselves.
openaire +1 more source
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
openaire +1 more source
Representation of chromatic distribution for lighting system
SPIE Proceedings, 2015For the luminaire manufacturer, the measurement of the lighting intensity distribution (LID) emitted by lighting fixture is based on photometry. So light is measured as an achromatic value of intensity and there is no the possibility to discriminate the measurement of white vs. colored light.
ROSSI, MAURIZIO, MUSANTE, FULVIO
openaire +2 more sources
Development of a distributed lighting control system
Artificial Life and Robotics, 2018We propose a distributed lighting control system composed of multiple LED lights and switchable shades, the transparency of which can be changed independently. Distributed controllers are embedded in all the lights and shades, and they communicate to determine the appropriate lighting and shading patterns required to realize a desired illuminance ...
Yuki Minami, Yuta Takamoto
openaire +1 more source
Light Simulation in a Distributed Driving Simulator
2006In this paper we present our work on modularizing and distributing a VR application – the Virtual Night Drive simulator. The main focus in our work is the simulation of headlights. The realistic but still interactive visualization of those lights is essential for a usable driving simulator at night.
Stefan Lietsch +4 more
openaire +1 more source