Price range: $198.00 through $2,435.00
These calibration patterns are made from high-quality soda-lime glass, offering excellent stability and durability for daily use in machine vision and precision measurement environments. They are widely used for calibrating optical systems, XY stages, and various 2D measurement setups.
With a feature-to-feature accuracy of up to 1 micron, the targets provide the precision required for system testing, alignment, and performance verification. You can select different dot sizes and spacing options depending on your specific calibration needs.
Grid arrays are commonly used to check and correct imaging distortion. In an ideal system, all rows and columns should remain perfectly perpendicular. If the captured image shows bent or curved grids, the distortion pattern can be analyzed and used for system compensation.
Model Number Breaking Down: VMP-100G-80
ArUco markers and boards are very useful due to their fast detection and their versatility. However, one of the problems of ArUco markers is that the accuracy of their corner positions is not too high, even after applying subpixel refinement.
On the contrary, the corners of chessboard patterns can be refined more accurately since each corner is surrounded by two black squares. However, finding a chessboard pattern is not as versatile as finding an ArUco board: it has to be completely visible and occlusions are not permitted.
A ChArUco board tries to combine the benefits of these two approaches:
Chessboard+ArUco=ChArUco
Standard CharuCo Calibration Targets
| Model | Substrate Material | Illumination | Overall Size (mm) | Pattern Information (Custom Available) | Accuracy | |||
|---|---|---|---|---|---|---|---|---|
| Start Id | Dictionary | Marker Size (mm) | Array | |||||
| CH-G110-05 | Soda Lime Glass | Backlight | 110x85 | 0 | 4x4 | 5x5 | 16 x 9, Optional | ±1μm |
| CH-G185-08 | Soda Lime Glass | Backlight | 185x110 | 0 | 4x4 | 8x8 | 16 x 9, Optional | ±1μm |
| CH-G230-10 | Soda Lime Glass | Backlight | 230x140 | 1 | 5x5 | 10x10 | 16 x 9, Optional | ±1μm |
| CH-G270-12 | Soda Lime Glass | Backlight | 270x165 | 1 | 5x5 | 12x12 | 16 x 9, Optional | ±1μm |
| CH-F340-15 | Film | Backlight | 340x200 | 2 | 6x6 | 15x15 | 16 x 9, Optional | ±15μm |
| CH-F460-20 | Film | Backlight | 460x280 | 2 | 6x6 | 20x20 | 16 x 9, Optional | ±15μm |
| CH-C110-05 | Ceramic | Front Lighting | 110x85 | 3 | 5x5 | 5x5 | 16 x 9, Optional | ±2μm |
| CH-C185-08 | Ceramic | Front Lighting | 185x110 | 3 | 5x5 | 8x8 | 16 x 9, Optional | ±2μm |
| Accuracy Properties | |||
|---|---|---|---|
| Dot Diameter Accuracy | ±1μm |
Dot Spacing Accuracy (Any 2 Neighbor Features) |
±1μm |
|
Dot Position Accuracy
(Entire Pattern Area against ideal position) |
±1μm (Dimension <= 300mm) |
Distance Accuracy
(from Chrome Pattern to Target Edge) |
±0.05mm, ±0.1mm |
| Optical Properties | |||
| Coating Type |
Bright Chrome (High Reflective) |
Brown Chrome (Low Reflective) |
Blue Chrome (Ultra-Low Reflective) |
| Reflectivity | < 76.4% @550nm | <10% @550nm | < 17% @550nm |
| < 74.5% @650nm | < 17.4% @650nm | < 74.5% @750nm | |
| < 74.5% @750nm | < 17.4% @750nm | < 5.8% @750nm | |
| Coating Thickness | 120nm (±0.20nm) | 100nm (±0.20nm) | 120nm (±0.20nm) |
| Optical Density | OD>3.0 | OD>3.0 | OD>4.5 |
| Physical & Mechanical Properties | |||
| Substrate Material | Soda Lime Glass (Float Glass) | Quartz Glass (Fused Silica) | |
| Transmission (@550nm) | >90% | >95% | |
| Thermal Expansion Coeff (20~200℃) | 8.0 × 10⁻⁶ /K | <5.0x10⁻⁷/K | |
| Expansion Ratio (20~200℃) | 0.00085% (8.5μm/℃ of 1m) | 0.00006% (0.6μm/℃ of 1m) | |
| Surface Flatness | <5μm (Dimension<100mm) | <1μm (Dimension<50mm) | |
| <20μm (Dimension<200mm) | <2μm (Dimension<100mm) | ||
| <50μm (Dimension>200mm) | <5μm (Dimension>200mm) | ||
| Surface Roughness | <0.025μm | ||
| Thickness(mm) | 1.0mm/1.6mm/2.3mm/3.0mm/4.0mm (±0.1mm) options | ||
| Overall Dimension Tolerance(mm) | ±0.05mm, ±0.1mm | ||
| Regulatory Compliance | |||
| ISO9001 | Verified | RoSH 2015 | Compliant |
| Reach 235 | Compliant |
Accuracy Certificate (3rd Party/ CalibVision) |
Available on Request |
We start with high-quality soda-lime glass or ceramic substrates to ensure stability and long-term precision.
The calibration pattern is written onto the coated chrome layer using a high-precision laser system for consistent accuracy.
The exposed areas are developed to reveal the pattern structure.
The chrome layer is etched to form clean, high-contrast features with sharp edges.
Residual photoresist and impurities are removed to achieve a smooth, flawless surface.
Each target is carefully inspected. Any defects are corrected to maintain micron-level accuracy.
A protective pellicle film can be added to prevent dust contamination, especially for demanding environments.
Every calibration target undergoes strict quality checks to ensure it meets industrial precision standards before shipment.
see why quartz glass is the premium choice for ultra-precicion applications
| Property |
|---|
| Thermal Expansion |
| Feature Accuracy |
| Min Feature Size |
| Surface Flatness |
| Max Temperature |
| Transmission |
| Cost |
| Quartz Glass |
|---|
| <5x10-7/℃ |
| ±0.1μm |
| 0.5μm |
| ~5μm |
| 1100℃ |
| >93% |
| Premium |
| Soda Lime Glass |
|---|
| 85x10-7/℃ |
| ±1μm |
| 0.7μm |
| ~10μm |
| -300℃ |
| >90% |
| Standard |
| Ceramic |
|---|
| 7.2x10-7/℃ |
| ±2μm |
| 3μm |
| 10-80m |
| 80℃ |
| N/A (Opaque) |
| Moderate |
| Chrome Type | Blue Substrate | Brown Substrate | Bright Silver |
|---|---|---|---|
| Reflectivity | Low Reflectivity | Medium Reflectivity | High Reflectivity |
| Key Advantages |
Superior uniformity performance Minimizes ambient light interference Excellent contrast in low-light conditions |
Balanced reflectivity for versatile use Performs well under strong illumination Suitable for outdoor environments |
Maximum light reflection for low-light scenarios Enables faster positioning and detection Ideal for high-speed applications |
Glass expands when heated and contracts when cooled.
| Parameters | Quartz Glass (Fused Silica) | Soda Lime Glass (Float Glass) |
|---|---|---|
| Thermal Expansion Coeff (15-200'C) | <8.0x10-7/K | <5.0x10-7/K |
| Expansion Ratio (20-200C) | 0.00085% | 0.00006% |
| Real-World Expansion Impact of 1Meter | Im glass changes by 8.5um per 1℃ | Im glass changes by 0.6um per 1°C |
| Temperature Stability | Standard stability | 14x more stable |
| Best Applicationsy | General-purpose testing | Precision measurement systems |
One of the advantages of quartz glass is Low Thermal Expansion Rate (CTE): <5.0*107, it delivers superior thermal stability (0.55um/°C vs 8.5um/°C). Essential for precision measurements, optional for general testing applications.
Unless you need exceptional thermal stability, soda lime glass delivers excellent performance at a fraction of the cost of quartz glass.
| Application Type | Required OD | Purpose |
|---|---|---|
| Standard Vision | OD 3-4 | General purpose calibration |
| High Precision | OD 4-5 | Sub-pixel accuracy requirements |
| NIR Applications | OD > 4.5 | Near-infrared wavelength optimization |
| Research Grade | OD> 5 | Ultimate contrast for specialized applicationsUltimate contrast for specialized applications |
| Glass Type | Soda Lime Glass (Standard Float Glass) | Quartz Glass (Fused Silica) |
|---|---|---|
|
Small Samples Surface Deviation |
<5μm (for sizes under 100mm) | <1μm (for sizes under 50mm) |
|
Medium Samples Surface Deviation |
<20μm (for sizes under 200mm) | <2μm (for sizes under 100mm) |
|
Large Samples Surface Deviation |
<50μm (for sizes over 200mm) | <5μm (for sizes over 100mm) |
| Accuracy Properties | |
|---|---|
|
Dot Diameter Accuracy (Minimum Line) |
±2μm |
|
Dot Position Accuracy (in Entire Pattern Area against ideal position) |
±2μm |
|
Dot Spacing Accuracy (Any 2 Neighbor Features) |
±1μm |
|
Distance Accuracy (from Chrome Pattern to Target Edge) |
±0.1mm |
| Production Process | Laser Writing |
| Optical Properties | |
| Substrate Material | Matte Ceramic/Glossy Ceramic |
| Coating Type | Blue Chrome |
| Reflectivity | < 7% @550nm |
| < 5% @650nm | |
| < 5% @750nm | |
| Coating Thickness | 100～120nm |
| Physical & Mechanical Properties | |
| Ceramic Substrate | 96% Alumina |
| Density | ≥ 3.66 g/cm³ |
| Thickness | 1mm/2mm/0.38mm/0.635mm (±0.1mm) |
| Surface Flatness | <30μm (Dimension<100mm) |
| <60μm (Dimension: <200mm) | |
| 200mm) | |
| Surface Roughness | <0.2-0.7μm |
| Thermal Expansion Coeff (40~400℃) | 6.7 × 10⁻⁶ /K |
| Regulatory Compliance | |
| ISO9001 | Verified |
| Reach 235 | Compliant |
| RoSH 2015 | Compliant |
|
Accuracy Certificate (3rd Party/CalibVision) |
Available on Request |
Minimum Line/space
Industries that demand the ultimate in calibration precision
| Coating Type | Matte Ceramic | Glossy Ceramic |
|---|---|---|
| Type |
|
|
| Minimum Line/space | 4μm | 2μm |
| Feature Accuracy | ±2μm | ±1μm |
| Overall Accuracy | ±2μm | ±1μm |
| Coating Type | Chrome | Chrome |
| Coating Glossy or Matte | Matte | Glossy |
The ceramic expand with heat and contract with cold.
| Dimension | <100mm | <200mm | >200mm |
|---|---|---|---|
| Surface Flatness | <30μm | <60μm | <100μm |
| Pattern | |
|---|---|
| Production Process | Laser Drawing |
| Minimum Line/space | 15μm / 30μm |
| Feature Accuracy | ±10μm |
| Coating) | Silver Bromide |
| Coating Thickness | 5μm |
| Optical Density OD | 100% Black 4-4.5 (OD are on request) |
| Color Selection | Black, Gray Scale, Gradients (Moire pattern is unavoidable). |
| Film Base | |
| Application | For backlight illumination/ transmission illumination applications |
| Expansion Coeff | 18μm/℃ of 1m |
| The film contract with heat and expand with cold. | |
|
When the relative humidity is constant, the film with a length of 1m will change by 18μm when the temperature changes by 1℃. |
|
| Transmission (400~700nm) | >83% |
| Film Base Thickness | 0.175mm / 0.1mm (±0.01mm) |
| MAX Size |
1x1m (±0.1mm) (Min Line 15μm) 1.3x2.6m (±0.1mm) (Min Line 30μm) |
| Waterproof | Waterproof |
| Overall Shape | Straight Edge Cutting / Round Hole Hollowing by Laser Cutting |
| Regulatory Compliance | |
| ISO9001 | Verified |
| Reach 235 | Compliant |
| RoSH 2015 | Compliant |
|
Accuracy Certificate (3rd Party/CalibVision) |
Available on Request |
The ceramic expand with heat and contract with cold.
Please fill out the form below or email us directly to sales@calibvision.com, our sales engineers will review your request and get back to you within 24 hours(typically faster).
