Experimental measurement of tubular skylight in laboratory

Experimental measurement of tubular skylight in laboratory

Paper in proceedings (conference paper)

Experiment show results of the passage of almost parallel light rays, simulating the solar part of daylight, through skylights. Skylights were measured by using a cubic light integrator, a specially prepared spotlight and an automatic goniphotometer. The automatic goniophotometer with a modified-jogging moved with the spotlight. That trajectories around the cupola simulated trajectory of the sun in the sky. In sum measurement consisted of 18 variants of skylights. Except for the directional sensitivity of the skylight was also investigating the spectral reflection factor of seven materials intended for the manufacture of hollow light guide, which are commonly available on the Czech market. The results of the measurement show that the measured reflective materials proved a high integral reflection factor (min. 98,13 % to 99,82 %). In addition to the numerical results is in the work from which the article proceeded with, the evaluation graph, showing the directional sensitivity of the skylights.

Experiment show results of the passage of almost parallel light rays, simulating the solar part of daylight, through skylights. Skylights were measured by using a cubic light integrator, a specially prepared spotlight and an automatic goniphotometer. The automatic goniophotometer with a modified-jogging moved with the spotlight. That trajectories around the cupola simulated trajectory of the sun in the sky. In sum measurement consisted of 18 variants of skylights. Except for the directional sensitivity of the skylight was also investigating the spectral reflection factor of seven materials intended for the manufacture of hollow light guide, which are commonly available on the Czech market. The results of the measurement show that the measured reflective materials proved a high integral reflection factor (min. 98,13 % to 99,82 %). In addition to the numerical results is in the work from which the article proceeded with, the evaluation graph, showing the directional sensitivity of the skylights.

Měření účinnosti tuusových světlovodů; spektrální odraznost; odrazné materiály

Měření účinnosti tuusových světlovodů; spektrální odraznost; odrazné materiály

NEKVAPIL, J.; ŠKODA, J.

2018

08.11.2017

Slovenská svetelnotechnická spoločnosť

Podbanské, SK

978-80-972865-0-7

Proseedings of the 22nd International Conference Light 2017 Zborník z 22. medzinárodnej konferencie Svetlo 2017

194

203

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