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Proceedings Paper

Development and implementation of photometric bench based on neutral optical density filters
Author(s): L. P. González-Galván; R. A. Chávez-Velázquez; R. López-Ramírez; N. Vidal-Medina; H. Zárate-Hernández; E. Rosas
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Paper Abstract

We present the development of a semi-automated photometric bench implemented at the Laboratorio de Fotometria of the Centro Nacional de Metrologia of Mexico, in order to reduce the illuminance meters calibration time. This photometric bench reproduces the minimum values established in the Mexican regulation NOM-025-STPS-2008 and allows the fast calibration of the luxmeters required for illuminance levels checks. The photometric bench design uses neutral optical density filters in order to realize different illuminances at the same distance. Here we also present the uncertainty estimated for the reference illuminance values realized by the implemented photometric bench.

Paper Details

Date Published: 3 December 2009
PDF: 6 pages
Proc. SPIE 7499, Seventh Symposium Optics in Industry, 74990A (3 December 2009); doi: 10.1117/12.844973
Show Author Affiliations
L. P. González-Galván, Ctr. Nacional de Metrología (Mexico)
R. A. Chávez-Velázquez, Ctr. Nacional de Metrología (Mexico)
R. López-Ramírez, Ctr. Nacional de Metrología (Mexico)
N. Vidal-Medina, Ctr. Nacional de Metrología (Mexico)
H. Zárate-Hernández, Ctr. Nacional de Metrología (Mexico)
E. Rosas, Ctr. Nacional de Metrología (Mexico)


Published in SPIE Proceedings Vol. 7499:
Seventh Symposium Optics in Industry

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