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Proceedings Paper

Measurement of luminance distribution in the space using shaped light guide
Author(s): Jan Dorosz; Władysław Dybczyński
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Paper 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.

Paper Details

Date Published: 26 April 2006
PDF: 9 pages
Proc. SPIE 6159, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments IV, 61592H (26 April 2006); doi: 10.1117/12.674835
Show Author Affiliations
Jan Dorosz, Białystok Univ. of Technology (Poland)
Władysław Dybczyński, Białystok Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 6159:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments IV
Ryszard S. Romaniuk, Editor(s)

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