Modeling Attenuation versus Length in Practical Light Guides

  title={Modeling Attenuation versus Length in Practical Light Guides},
  author={Victor Gerchikov and Michele Ann Mossman and Lorne A. Whitehead},
  pages={47 - 59}
Abstract Attenuation of light in light guides is a well understood phenomenon from the point of view of the basic underlying physics. Particularly in the case of light guides having a macroscopic cross section, ray trace modeling captures all of the key physics and makes it possible to accurately predict the decay of radiant flux as a function of length in the guide. Unfortunately, in typical applications in the field of illuminating engineering, such calculations are prohibitively difficult… Expand


Radiation transfer through specular passages—a simple approximation
Abstract A new technique is developed for approximating exchange factors for specular radiation passages. It is shown that for a large class of configurations, even with curved reflector surfaces,Expand
New efficient light guide for interior illumination.
This device combines the total internal reflection of optical fibers with the low attenuation of air transmission of light to make large-scale interior illumination with piped light feasible. Expand
Optical and thermal properties of Compound Parabolic Concentrators
  • A. Rabl
  • Physics, Materials Science
  • 1975
Abstract Compound Parabolic Concentrators (CPC) are relevant for solar energy collection because they achieve the highest possible concentration for any acceptance angle (tracking requirement). TheExpand
Transmission of 3-D images by means of lens guides.
A simple lens guide can be used to present to an observer a lifelike 3-D image of a distant object, suggesting the use of lens guides within buildings to look outside from interior rooms and in some applications now served by electronic closed-circuit television. Expand
Day-lighting of underground spaces: design rules
Abstract This paper proposes rules to size light wells in order to provide the desired quantities of natural light in underground spaces. These rules have been determined by processing the results ofExpand
Reliability: Probabilistic Models and Statistical Methods
1. Coherent Systems Analysis, Nonparametric Methods and Model Adequacy, and Parametric Lifetime Models. Expand
Investigation of light distribution with an annular lens guide
  • IESNA Annual Conference Technical Papers 1:109–142.
  • 1997
Prism Light Guide Luminaire
  • US Patent 4, 750:798.
  • 1986
Optical and thermal properties of compound parabolic concentrators. Sol Energy
  • 1976
Proceedings of the CIE Session 1975 in London
  • p 412–4255.
  • 1975