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DM Code Calibration Board QR Code Calibration Target with 1um Precision Customizable Size Glass Substrate for Vision Systems
DM Code Calibration Board
,High Precision Camera Calibration Board
,DM Code Camera Calibration Board
The QR Code Calibration Board is engineered for high-precision camera and vision system calibration, supporting both intrinsic and extrinsic parameter adjustment. By integrating QR codes with unique IDs, it enables robust and accurate feature point detection, even in complex environments. The board ensures reliable distortion correction and coordinate system alignment, making it suitable for multi-camera setups or camera-to-robot calibration. Available in various sizes and made with durable materials, it is widely used in industrial automation, 3D reconstruction, and precision measurement. Compatible with Hikvision cameras, SDKs, and common vision libraries, it provides stable and efficient calibration solutions.
- Micron-level high precision with a maximum accuracy of 1 µm
- High contrast and non-reflective surface for clear, easy identification
- Supports multi-format drawing customization
- Stable, repeatable results for demanding vision applications
Machine vision calibration across security, film and television, medical, camera, drone camera, photography studio, scientific research instruments, and other equipment.
The substrate for the QR code calibration plate is optional. Different substrates — such as glass, ceramic, and aluminum plate — can be customized according to different usage scenarios, environments, and accuracy requirements.
| Design | Substrate |
|---|---|
| Manufacturing Process | Photolithography |
| Glass Substrate | Quartz glass (fused silica) / soda glass |
| Minimum Line Width | 1 µm / 0.55 µm |
| Transmittance Rate (@550 nm) | >95% |
| Feature Accuracy | ±1 µm |
| Coefficient of Thermal Expansion (20–200 °C) | <5.0×10⁻⁷/K |
| Coating | Yellow chromium, bright chromium, blue chromium (low reflectivity) |
| Expansion Ratio (20–200 °C) | 0.00006% (0.6 µm/°C of 1 m) |
| Reflectance |
<13.4% @550 nm <1.8% @650 nm <2.67% @750 nm |
| Surface Flatness |
<0.55 µm (length <50 mm) <2 µm (length <100 mm) <5 µm (length >100 mm) |
| Coating Accuracy | 120 nm (±0.20 nm) |
| Surface Roughness | <0.025 µm |
| Optical Density (OD) | Yellow Chromium 3 (Blue 5) |
| Thickness | 1 mm, 1.6 mm, 2.3 mm, 3 mm (±0.2 mm) (500×500×4.8) |
| White Background |
Minimum line width: 10 µm White background thickness: 40 µm (smooth white coating on the back) |
| Minimum / Maximum Size |
Min: 2×2 mm Max: 800×960 mm (±0.1 mm) |
| Positive & Negative Shapes |
Positive: pattern opaque Negative: pattern translucent |
| Appearance and Shape | Square |
Specifications are customizable based on application requirements. Contact our engineering team to discuss substrate selection, sizing, and accuracy targets for your specific vision system.
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