[IxDA Discuss] font size for small screens at a distance

[Bret Hekking]

>Is there any research that has been done on font size at that distance on a
> small screen device?

There's actually a formula for font size at distance:

"Visual Angle, Viewing Distance, and Character Size Calculation - These
parameters can be measured and calculated using simple algebra. Visual angle
(A) is defined in degrees. The size of the visual angle depends on the size of
the object being viewed (H) and its distance (D) from the observer."

For details:
http://www.hf.faa.gov/Webtraining/VisualDisplays/text/size1a.htm

Bret Hekking
Sr. UX Designer | Applix, Inc
Westboro, MA

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