A5. PEAK CONTRAST
Unit: Contrast : 1
Brightness: Default Contrast:Default
Contrast Ratio = Lux value at the center of a solid white screen/the lux value of a solid black screen
A6. LIGHT LEAKAGE
Unit: Lux
Brightness: Default Contrast:Default
Leakage = The maximum light leakage of a solid black screen outside the projected image
A7. IMAGE DISTORTION
Unit: %
Brightness: Default
Contrast: Default
Measurement procedure:
Measure the dimensions H1, H2 and H3, with H3 at the half image width, as shown above for both zoom settings. For each the distortion is defined as:
TV − dist = H1 + H 2 − 2 * H 3 *100% 2 * H 3
All should be within the absolute specification tolerance.
A8. THROW RATIO
Unit: Ratio : 1
Brightness: Default
Contrast:Default
Throw ratio = projection distance / the width of the projected image
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