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Size of Letters Required for Visibility as a Function of Viewing Distance and Observer Visual Acuity (Classic Reprint) - Hardcover

Gerald L. Howett

 
9780265803226: Size of Letters Required for Visibility as a Function of Viewing Distance and Observer Visual Acuity (Classic Reprint)

Synopsis

Excerpt from Size of Letters Required for Visibility as a Function of Viewing Distance and Observer Visual Acuity

Log-log plot of visual acuity ratio as a function of background-luminance ratio [eq.

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