Hi Greg,
thank you for your quick reply and your attached LCD info.
Yes correct, I am thinking of veiling glare on the screen that will reduce visibility. Before I received your email, I tried mirror as LCD material. Surely, there is glare (as shown in file.pic), but when I calculate all glare parameter in radiance (dgi, ugr, cie, and others) the results are 0. May be those parameter cannot be used to calculate veiling glare on monitor screen? (high contrast occur vertically on the screen)
Thank you very much, Greg.
Best regards,
Yuni
Hi Yuni,
Here is a description for an HP LCD monitor we measured at LBNL for
the New York Times (work sponsored by NYSERDA). You can substitute
any 1024x768 screen shot you like for "VDTdisp.pic". Make sure the
maximum value is <= 1.0.
As for glare analysis, I don't know how you mean to associate
discomfort glare with a VDT. Perhaps you are thinking of veiling
glare -- reflections from the screen that reduce visibility?
-Greg
···
"Gregory J. Ward" <[email protected]> wrote:
From: erika yuniarti
Date: July 25, 2006 10:17:18 AM PDTDear all,
I have some monitor screens facing quite big window. Therefore,
there may be glare occured on the monitor screens. I would like to
study this through radiance. I wonder how to model the monitor
screen in radiance (what material, what reflectance?) and what
glare assessment should be used (dgi?ugr?cie?or others?)Thank you very much. I really appreciate your help.
Best regards,
Yuni
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