[Radiance-general] Device suggestions for measuring surface color and reflectance in the field

[Mehlika Inanici]

Kyle,

Minolta CM-2002 Spectrophotometer works well to measure color and reflectance but it is rather an expensive equipment (even just for lease). Last time I used it, I compared the measurement values with the results I achieved using Macbeth chart and macbethcal (http://radsite.lbl.gov/radiance/man_html/macbethcal.1.html) and the results were very close.

As Greg mentioned, the photographs of the sample and Macbeth chart should be taken under stable and uniform lighting conditions.

Mehlika



On Wed, 29 Jan 2014, Kyle Konis wrote:

> Dear list,
> 
> I plan to build several radiance models of Alzheimer care facilities in preparation for a field study examining daylight exposures and cognitive / health outcomes in
> partnership with a colleague in health sciences.
> 
> The radiance work is intended to supplement the data collected from physical sensors to provide greater insight into 24-hour patters of light / dark.
> 
> I would like to measure the surface optical properties (color,  reflectance) of the walls / ceilings and floors etc.
> 
> I am aware of two devices that have been used to do this.
> 
> 1) The first is the X-rite Colormunki (actual name of product) that Michael Donn was using while visiting LBNL.
> 
> The second is the Minolta CM-2002 Spectrophotometer used by Mehlika Inanici.
> http://faculty.washington.edu/inanici/Publications/mi-luekos2010.pdf
> 
> If anyone has experience with this task who can provide some comments on their approach it would be appreciated. (Michael and Mehlika, i will likely contact you
> directly!).
> 
> Best,
> 
> -Kyle
> 
> -----------------------------------------------
> Kyle Konis, AIA, Ph.D
> Assistant Professor
> School of Architecture, WAH 204
> University of Southern California
> Los Angeles, CA 90089-0291
> http://arch.usc.edu/faculty/kkonis
> -----------------------------------------------
> 
> 
> 
> 
>