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1um Precision Checkerboard Calibration Board Camera Calibration Chessboard with Customizable Size and Glass Ceramic Film Aluminum Material
Black And White Checkerboard Calibration Target
,Ceramic Checkerboard Calibration Target
,Black And White Camera Calibration Chessboard
The Checkerboard Calibration Board is one of the most widely used tools for camera and vision system calibration. Its high-contrast black and white square pattern enables precise corner detection, allowing accurate estimation of intrinsic and extrinsic parameters. This ensures effective correction of lens distortion and reliable alignment of multi-camera or camera-to-robot systems.
Manufactured with strict tolerances on durable materials such as glass, metal, or composites, the board delivers excellent stability and repeatability. It is compatible with popular vision libraries including OpenCV and Halcon, and is commonly applied in robotics, 3D reconstruction, industrial automation, and machine vision applications that demand high calibration accuracy.
- Clear, sharply defined pattern corners for reliable detection
- High precision with a maximum accuracy of 1 µm
- High contrast, non-reflective pattern surface
- Supports diversified customization to match specific requirements
Designed for machine vision calibration across a broad range of equipment, including security systems, film and television production, medical imaging, cameras, drone cameras, photography studios, scientific research instruments, and other precision optical devices.
The base material of the checkerboard calibration board is selectable. Different substrates — such as glass, ceramic, film, and aluminum plate — can be customized according to usage scenario, operating environment, and accuracy requirements.
| 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 mm |
| 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 |
| Manufacturing Process | Photolithography | Type | Matte chromium on matte ceramic / bright chrome on glossy ceramic |
| Ceramic Type | Matte ceramic / glossy ceramic | Ceramic Substrate | Zirconia / alumina |
| Minimum Line Width | 4 µm (matte) / 2 µm (glossy) | Thickness | 1 mm (±0.1 mm, common) / 2 mm (common) / 3 mm (±0.1 mm) |
| Feature Accuracy | ±2 µm | Surface Flatness | <30 µm (length <100 mm) <60 µm (length <200 mm) |
| Appearance Accuracy | ±0.05 mm | Size Range | Min: 2×2 mm (±0.1 mm) Max: 228×228 mm (±0.1 mm) |
| Coating | Chromium | Surface Roughness | <0.2–0.7 µm |
| Light / Matte Coating | Matte chromium coating / bright chrome coating | Coefficient of Thermal Expansion (40–400 °C) | <6.7×10⁻⁶/K |
| Reflectance | <12.88% @550 nm <10.62% @650 nm <12.23% @750 nm | Unit Weight | ≥3.66 g/cm³ |
| Coating Thickness | 100–120 nm | Rockwell Hardness | ≥80 HRA |
| Positive and Negative Shapes | Positive film: opaque pattern Negative film: transparent pattern | Appearance and Shape | Laser cutting of any shape; square; ellipse |
| Protective Layer | Thin film above the chromium layer improves pattern durability | Special Shapes | Punch, chamfer, oblique angle |
| Manufacturing Process | Lithography (film lithography machine) | Application | Used for transmission / backlight / functional testing |
| Minimum Line Width | 10 µm / 30 µm optional | Coefficient of Expansion | Film shrinks when heated and expands when cooled |
| Feature Accuracy | ±10 µm | Dimensional Stability | 10 µm/°C of 1 m; at constant relative temperature, a 1 m film changes by 10 µm per 1 °C humidity change (one ten-thousandth) |
| Coating | Silver bromide | Transmittance Rate (400–700 nm) | >90%; ultraviolet < (400–700 nm) > infrared |
| Coating Thickness | 2 µm | Film Substrate Thickness | 0.18 mm (±0.01 mm) |
| Optical Density (OD) | OD >4 at 100% black (OD value controllable in grayscale) | Maximum Size | 0.71×0.81 m (±0.1 mm, minimum line width 10 µm) 1.68×3.5 m (±0.1 mm, minimum line width 30 µm) |
| Color | Black grayscale, sine grayscale | Appearance | Laser cutting, straight edge cutting, and circular hole hollowing available |
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