| 5. Appearance Specification |
| Module Appearance | No dirt, visible scratches on the surface, no impurities inside the plastic | 8X Magnifier | A |
| Lens | No visible scratches or dirt under 800100Lux light and 45-degree reflection | 8X Magnifier | A |
| Threaded Glue | Dispensing length is 1/3-1/2 of the circumference, glue should not overflow to the lens end face and base | 8X Magnifier | A |
| Sealing Glue | Uniformly filled between the base and FPC, no gaps, no uneven thickness, no overflow beyond FPC edge | 8X Magnifier | A |
| Flexible Printed Circuit (FPC) | 1) No dirt on surface, clear printing; 2) Edge burr length < 1mm, width < 0.3mm; 3) Edge notch length < 1mm, width < 0.1mm, max 2 per edge, no inward tearing sharp corners | 45X Microscope (Continuous Zoom) | A |
| Connector | 1) No foreign objects, oil stains, discoloration; 2) No missing tin, insufficient tin, bridging; 3) Pins are bright, flat, no warping | 45X Microscope (Continuous Zoom) | A |
| Reinforcing Steel Plate | 1) No dirt, rust, tactile scratches; 2) Positioning post height out of board surface 0.1mm | Visual Inspection | B |
| Outer Dimensions |
| Height | Conforms to drawing requirements | Digital Caliper | A |
| Length | Conforms to drawing requirements | Digital Caliper | A |
| Width | Conforms to drawing requirements | Digital Caliper | A |
| 6. Image Specification |
| Item | Requirement | Inspection Method | Classification |
| Dust | No visible foreign objects in the full image under white field | Test Fixture, Small Light Box, 6500K White Backlight | A |
| Imaging Direction | Conforms to drawing requirements | Test Fixture | A |
| Dead & Wound Pixel | No black/color dots or flickering bright spots | Test Software, Small Light Box (6500K White Backlight) | A |
| Resolution | CIF--100 TV LINE (center); VGA--300 TV LINE (center), 250 TV LINE (surroundings); 2M--800 TV LINE (center), 650 TV LINE (surroundings); 3M--1000 TV LINE (center), 800 TV LINE (surroundings); 5M--1200 TV LINE (center), 1000 TV LINE (surroundings) | MTF Test Program | A |
| Field of View (FOV) | Horizontal: Vertical: Diagonal: | Test Fixture, Field of View Target | A |
| Image Plane Uniformity (Relative Illumination) (Shading) | Brightness ratio of corners (90% from center) to center > 60% (sampling box 40*40 pixels, sensor dark corner compensation off) | Test Software, Small Light Box (3400Lux, 6500K White Backlight) | A |
| Color Difference | Average color block error 20% | Color Checker Card | A |
| Geometric Distortion (TV Distortion) | Pincushion (positive) or barrel (negative) distortion 1% | ISO12233 Target | A |
| Grayscale | Adjacent distinguishable grayscale brightness difference < 8 | Test Software, Grayscale Target | A |
| Chromatic Aberration (CA) | < 0.5 | ISO12233 Target | A |
| Torsional Torque | 1 kgf.cm | Torque Wrench | A |
| Thrust of Base | 2 N | Thrust Gauge | A |