ViewSonic PJD5122 - Positioning your projector; Choosing a location

Table 2
Parts Size “A” surface “B” surface “C” surface
Time 10 sec 10 sec 10 sec
TABLE 3 General Product of plastic outlook of dot, blemish, and others spec inspection
standard
A surface
(Number of defect)
B surface
(Number of defect)
C surface
(Number of defect)
Spec
( Area cm2 )
20*20 50*50 70*70 100*100 20*20 50*50 70*70
100*1
00
20*20 50*50 70*70 100*100
P < 0.2 mm2
Distance ≥ 2cm
Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore
0.2 P< 0.3 ≦
mm2
Distance ≥ 4cm
2 3 4 5 2 3 4 5 4 4 5 6
Particle
Blemish
|
Color
spot
0.3 P ≦
<0.4mm2
Distance ≥ 4cm
0 0 0 0 2 3 4 5 3 4 5 6
P<0.1 mm2
Distance ≥ 2cm
Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore
0.1 P<0.2mm ≦
2 Distance ≥
4cm
4 4 5 6 5 5 6 7 6 6 7 8
0.2 P < ≦
0.3mm2
Distance ≥ 4cm
3 4 4 5 4 5 5 6 6 7 7 8
Particle
|
Spot
with
same
color
0.3 P < ≦
0.5mm2
Distance ≥ 5cm
2 2 3 4 3 3 4 5 4 4 5 6
Total 4 4 5 6 5 5 6 7 6 6 7 8
Note:
1. Use the 20*20 criteria to the area less than 20*20; 50*50 inspection criteria to the area
20*20 A<50*50; etc.≦
(Particle/Blemish/Color Spot)
1.1 Definition of surface A, B, C refer to 6.2
1.2 Blemish around the ViewSonic Bird logo, name plate and silk screen must be equal or
smaller than 0.05 mm2
1.3 Bubble on the surface is to be reject.
TABLE 2 : General Product of plastic outlook inspection standard
NO Appearance Spec
1 Shrinkage
A region: No Shrink. With gloves, no feeling of sink when touching
the surface
B/C region: not obvious
2 Run, Texture,
Gloss
No obvious non-uniformity
3 Welding Line/Knit
Line
When scratching on it, there’s no feeling of obstruction. Also, there
should not be obvious difference in gloss nearby it.
4 Ejector Mark Reject
5 Label/screws
shortage
Reject
6 Material shortage Material shortage is not allowed to impact structure strength and
surface
Confidential - Do Not Copy
PJD5122
ViewSonic Corporation
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