Design and optimization of a retinal flux density meter
John Van Derlofske; Andrew Bierman; Mark S Rea; Janani Ramanath; John D Bullough; John Van Derlofske; Lighting Research Center, Rensselaer Polytechnic Institute, 21 Union Street, Troy, NY 12180, USA; Andrew Bierman; Lighting Research Center, Rensselaer Polytechnic Institute, 21 Union Street, Troy, NY 12180, USA; Mark S Rea; Lighting Research Center, Rensselaer Polytechnic Institute, 21 Union Street, Troy, NY 12180, USA; Janani Ramanath; Lighting Research Center, Rensselaer Polytechnic Institute, 21 Union Street, Troy, NY 12180, USA; John D Bullough; Lighting Research Center, Rensselaer Polytechnic Institute, 21 Union Street, Troy, NY 12180, USA
Журнал:
Measurement Science and Technology
Дата:
2002-06-01
Аннотация:
We present the design and calibration of a retinal flux density (RFD) meter. This device can serve as a standard illuminance meter or can measure flux density on the retina, using both photopic and scotopic spectral responses. In addition, through post processing, the instrument can determine standard illuminances and RFDs at mesopic levels. This device is an extension of an earlier instrument, reported on by us, which replicated the spatial efficiency function of the human eye to determine retinal exposure. In this paper we describe the need for such a measurement device, detail its design, and report on its performance.
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