BenQ PB6200, PB6100 manual A15. Ansi Color Uniformity

A15. ANSI COLOR UNIFORMITY

ANSI Color Uniformity: u’v’= [(u’1-u’0)^2+(v’1-v’0)^2]^1/2

(u’0,v’0): the average color of L1~L13

(u’1,v’1): the spot with maximum deviation from (u’0,v’0)

A16. PROJECTION OFFSET

Projection Offset= Image height above projection lens optical axis / Total image height x 100%

Note: Optical engine should be kept horizontal attitude

A17. Customer Defined Focus

i.Focus test procedure (Wide only)

a.Pattern: Cross Hatch (Refer to A27 for all related test patterns)

b.Steps:

Step 1: Get best focus at Screen Center with “Phon Pattern”

Step 2: Check “Cross Hatch” at 60”, Wide position.

Step 3: Observe R, G, B color separately and check “Center and 4 corners of screen” for “Defocus” and “Flare” (Check line only, no check point)

Step 4: Good (“Defocus” << A, “Flare” << B)Æ No more check needed

Step 5: LimitÆ Check “Defocus” (60” <A pixels) Check “Flare” (60” <B pixels)

Step 6: Worst unit of the dayÆ Check “Letter pattern” (Screen to Observer 6m, Wide and Tele same spec) with:

“Defocus” < C pixels “Flare“ < D pixels

ii.Criteria: Measure the flare size with agreed “Grid” paper and as follows:

1 Pixel

Grid of 1.5 pixels

Flare

Defocus

1.5 pixels

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