Level 1 Cosmetic / Appearance / Alignment Service
Visual Inspection & Cleaning
PART I Visual Inspection Criteria
1.0 Inspection zone definition and inspection distance
A-side: Up case - Up case surfaces except right / left / behind side’s surface.
Front cover - Front cover surface
B-side: Side - right/left sides surfaces
Back cover - Back cover surfaces
C-side: Low cause - bottom surfaces
For spot inspection distance is 45 cm on A/B/C-side. And inspection time is
10 sec.
For scratch inspection distance is 45 cm on A/B/C-side. And inspection time is 10 sec.
1.1 Appearance Inspection Criteria
1.1.1 Environment Condition
1.1.1.1 Lighting intensity
All appearance quality shall be inspected with the lighting condition as 500~800Lux
(natural lighting or white fluorescent light).
1.1.1.2 Inspection angle and distance to object or target
All part inspection must be done under direct overhead lighting. Viewing angle and
distance are dependent on surface classification. In all cases, parts must be held in
such that the light reflection does not disturb the inspector's eye.
Figure 1
Table 1
Classification Area A Area B Area C
Lighting positioning Above of inspected part
Inspection position relative to part 90º 90º 90º
Inspection distance 40~50 cm 40~50 cm 40~50 cm
1.1.1.3 Inspection interval (time)
Inspection interval is a function of surface area.
Time for visual inspection: 10sec.
Confidential - Do Not Copy
PJD5122
ViewSonic Corporation
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