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25MP 16mm C-Mount Camera Lens Low Distortion for Wafer Surface Inspection
Product Specification
Place of Origin:
China
Brand Name:
AOTAOJI
Certification:
RoHS Compliant, CE
Model Number:
K1628-25M
Minimum Order Quantity:
10 Pieces
Price:
USD 120-480 / Piece
Payment Terms:
T/T,L/C,Western Union,PayPal
Supply Ability:
8000 Pieces per Month
Product Details
Highlight:
16mm 25MP C-Mount Resolution
,Low Distortion Wafer Inspection
,Manual Iris Locking Screws
Product Name:
25MP Low Distortion Wafer Inspection Camera Lens
Application:
Wafer Surface Inspection
Resolution:
25MP
Image Size:
1.1 Inch
Focal Length:
16mm
Aperture Range:
F2.8 To F16
Focus Range:
0.15m To Infinity
Field Of View:
47.82 Deg X 35.94 Deg (1.1 Inch) / 45.16 Deg X 30.97 Deg (1 Inch) / 39.04 Deg X 25.11 Deg (1/1.2 Inch)
TV Distortion:
-0.09% At 0.4m
Mount Type:
C-Mount
Filter Size:
M40.5 P=0.5mm
Operating Temperature:
-20C To 70C
Product Description
K1628-25M 16mm 25MP C-Mount Camera Lens with -0.09% Distortion
The K1628-25M is a 16mm C-mount camera lens built for semiconductor and electronics metrology, where a straight image matters more than a wide one. With 25MP of resolving power across a 1.1-inch sensor and TV distortion of only -0.09% at 0.4m, the lens keeps grid structures, bond pads and fine tracks in their true positions, so inspection algorithms spend less time on geometric correction and more time on defect classification.
The 16mm focal length gives a 47.82 x 35.94 degree field on a 1.1-inch sensor, a working balance that fills a wafer field of view at a comfortable standoff. A F2.8 to F16 manual iris and a 0.15m to infinity focus ring are both lockable, and the anodised aluminium barrel carries an M40.5 P=0.5mm filter thread. Each 25MP camera lens is assembled in our own workshop and released with an MTF trace and distortion record, so a wafer surface inspection cell can be qualified from documented data rather than from a lucky sample.
Technical Specifications
| Model | K1628-25M |
|---|---|
| Focal Length | 16mm |
| Image Size | 1.1 inch |
| Resolution | 25MP |
| Iris Range | F2.8 to F16 |
| Focus Range | 0.15m to Infinity |
| Field of View (H x V) | 47.82 x 35.94 deg (1.1 inch) / 45.16 x 30.97 deg (1 inch) / 39.04 x 25.11 deg (1/1.2 inch) |
| TV Distortion | -0.09% at 0.4m |
| Mount Type | C-Mount |
| Filter Size | M40.5 P=0.5mm |
| Dimensions | 42 x 56mm |
| Aperture / Focus Control | Manual with locking screws |
| Operating Temperature | -20C to 70C |
Typical Applications
- Wafer surface inspection, die and bump metrology
- PCB, FPC and solder joint verification under bright field or coaxial light
- Semiconductor packaging and wire bond inspection stations
- Precision measurement of fine pitch features and grid patterns
- Flat panel, cover glass and thin film defect review
- Laboratory imaging where geometric fidelity is critical
Why This Low Distortion 25MP Camera Lens Suits Wafer Work
- TV distortion of -0.09% at 0.4m keeps pitch and grid measurements honest without software warping
- 25MP resolution across the 1.1-inch circle separates sub 10 micron features at typical inspection standoffs
- F2.8 to F16 manual iris with a locking screw holds illumination level across a production run
- Anodised aluminium barrel suppresses internal reflection for low contrast defect detection
- M40.5 P=0.5mm thread accepts bandpass, polarising and protective filters
- RoHS compliant, lead-free build and full test traceability for fab supplier audits
Product Questions and Answers
Q: Why does distortion matter more than field width for wafer inspection?
A: Wafer inspection compares measured geometry against a known pattern. At -0.09% TV distortion the 16mm 25MP camera lens introduces only a fraction of a pixel of positional error across the field at 0.4m, so critical dimension and overlay checks stay inside tolerance.
Q: Which working distances does the lens support?
A: Focus travel runs from 0.15m to infinity. Most wafer and PCB stations sit between 0.2m and 0.6m, where distortion is specified and the iris can be stopped down for depth of field.
Q: Is the lens compatible with 1-inch and 1/1.2-inch sensors?
A: Yes. The 25MP machine vision lens covers 1.1-inch, 1-inch, 1/1.2-inch, 2/3-inch and smaller formats. Field of view scales with sensor size, and the lens remains diffraction limited at F8 on smaller formats.
Q: How is coating performance verified?
A: Coating adhesion and transmission are checked per batch on a spectrophotometer, and each 25MP C-mount lens is inspected under oblique light for sleeks, digs and coating voids before packing.
Q: Can you support a qualified supplier programme?
A: We provide MTF, distortion and visual inspection records with every shipment, plus first article inspection reports and PPAP style documentation on request for OEM and fab supplier qualification.
Manufacturing and Application Support
Our optics workshop produces fixed focal machine vision lens families for semiconductor, electronics and metrology customers in Europe, North America and Asia. Grinding, coating and assembly stay in house, and every 25MP camera lens leaves with measurable data attached. Tell us your sensor, field of view and defect size target, and our application engineers will confirm the K1628-25M or propose the closest focal length in the 25MP series. Volume pricing, private labelling and custom filter threads are available.
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