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12.5 Minor Defect
Ex cept the Major defects above, all cosmetic defects are classified as minor defects.
Item No.
Item to be Inspected
1.
Spot defect
( Defects in spot from )
2.
Line defect ( Defects in
line form )
3.
Orientation defect
( such as misalignment
of L/C)
4.
Polarizing
Inspection Standard
Z one siz e (mm)
Φ≦0.15
0.15≦Φ≦0.20
0.20≦Φ≦0.25
Φ>0.25
Remarks : for dark/white spot, siz e Φ is defined as
Φ=1/2(X+Y)
Siz e (mm)
L
W
Length
Width
Accep-
W≦0.02
table
L≦3.0
W≦0.03
L>2.5
W≦0.03
L≦3.0
0.03<W≦0.05
L>2.5
0.03<W≦0.05
W>0.05
Remarks: The total of spot defect and line defect
shall not ex ceed four.
Not allowed inside viewing area ( Z one A or Z one B )
12.5.4.1 Polariz er Position
1. Shifting in Position Should not ex ceed the
glass outline dimension.
2. Incomplete covering of the viewing area due to
Shifting is not allowed.
12.5.4.2 Seratches, bubble or dent on Glass/
Polariz er/Reflector, Bubble between
Polariz er & Reflector/Glass:
Siz e (mm)
Φ≦0.20
0.20<Φ≦0.50
0.50<Φ≦1.00
Φ>1.00
PAGE
PAGE
PAGE 1 1 1 1 1 1 1 1
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Acceptable Qty
A
B
Acceptable ( clutering of
spot not allowed )
1
2
0
1
0
0
Acceptable Qty
Z one
A
B
Accep-
table
2
0
2
0
Counted as spot defect
( Follows item 12.5.1 )
Acceptable Qty
Z one
A
B
Acceptable
3
2
0
Classification of defects
Minor
C
Accepta-
ble
Minor
C
Accep-
table
Minor
Minor
C
Accep-
table
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