26 April 2006 Measurement of luminance distribution in the space using shaped light guide
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Proceedings Volume 6159, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments IV; 61592H (2006) https://doi.org/10.1117/12.674835
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments IV, 2005, Wilga, Poland
Abstract
Analysis of luminous flux transfer trough a conical ring-core light guide is presented. This kind of optical guide is used by the authors to build a measuring device which enables to determine the distribution of luminance in the visual space. The angles of acceptance can be selected at random, thus the solid angle, in which the distribution of luminance is analysed, can practically be divided into a chosen number of zones. In the section perpendicular to its axis, the light guide can have an elliptical shape with different angles of acceptance. In such a way it is possible to adjust the division of the space into zones better and create a parallel with two-eye sight (smaller zones in the vertical section, bigger in the horizontal plane). The conical output surface with great vertical angle considerably improves the process of the transfer of the luminous flux trough a conical ring-core light guide. Replacing a flat outlet surface of the light guide by a conical one makes the transferred luminous flux to some extent more uniform.
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Jan Dorosz, Władysław Dybczyński, "Measurement of luminance distribution in the space using shaped light guide", Proc. SPIE 6159, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments IV, 61592H (26 April 2006); doi: 10.1117/12.674835; https://doi.org/10.1117/12.674835
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