Custom Chrome on Glass Test Target

Custom Chrome on Quartz Glass Target

High Precision • Custom • MOQ 1pcs

Good Thermal Expansion Coeff (CTE) performance
Standard feature size accuracy +/-1μm
Best feature size accuracy +/-1μm
Standard feature position accuracy +/-1μm
Maximum size 1200x850mm
Smallest line width/ minimum feature size down to 0.5um；
Graticules, scales, reticles, pin holes, apertures, calibration targets, resolution targets, test targets

Precision Standards

When sub-micrometer accuracy is non-negotiable

0.1μm

Feature Position Accuracy

0.5μm

Min. Line Space

5×10⁻⁷/°C

Thermal Expansion

1200×850mm

Max Size

Accuracy Specification
Feature Size Accuracy	Dot Diameter (mm)	±0.001 / ±0.0001
	Square/Checker Size (mm)	±0.001 / ±0.0001
	Line Width (mm)	±0.001 / ±0.0001
	Circularity (mm)	0.001
	Line Straightness (mm)	0.001
Feature Spacing Accuracy (Any 2 Neighbor Features)	Dot Spacing (mm)	±0.001 / ±0.0001
	Chessgrid Corner to Corner Spacing (mm)	±0.001 / ±0.0001
	Line Spacing (mm)	±0.001 / ±0.0001
	Distance Accuracy (mm) (from Chrome Pattern to Target Edge)	±0.05, ±0.1
Feature Position Accuracy (in Entire Pattern Area against ideal position): ChessGrid Corner Position, Circle Position, etc	Dimension <= 300mm (mm)	±0.001
	Dimension > 300mm (mm)	±0.003~0.005mm
	Accuracy Certificate (3rd-Party/ CalibVision)	Available on Request

Minimum Feature Size
Smallest Feature Size	Dot Diameter	Down to 0.5μm
	Dot Spacing	Down to 0.5μm
	Line Width	Down to 0.5μm
	Checker Size	Down to 0.5μm

Properties	Value
Size Range: Length/Width(mm)	1×1mm to 1200×850mm
Thickness Options:	1.5 / 2.3 / 3.0 / 10.0mm
Dimension Tolerance (mm) :	±0.05mm, ±0.1mm
Thickness Tolerance (mm)	±0.1mm
Edges	Beveled
Angle of the edges	±1°
Surface Flatness (um)	Dimension <130mm:	~5μm
	Dimension 130-220mm:	~10μm
	Dimension 220-450mm:	~20μm
	Dimension 220-450mm:	~20μm
Surface Roughness	<0.025μm

Halcon Calibration Glass Target

Specification Datasheet - Glass Calibration Target

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

Chrome Coating Manufacturing Process Chart

01

Substrate Material

We start with high-quality soda-lime glass or ceramic substrates to ensure stability and long-term precision.

02

Laser Writing

The calibration pattern is written onto the coated chrome layer using a high-precision laser system for consistent accuracy.

03

Developing

The exposed areas are developed to reveal the pattern structure.

04

Etching

The chrome layer is etched to form clean, high-contrast features with sharp edges.

05

Stripping & Cleaning

Residual photoresist and impurities are removed to achieve a smooth, flawless surface.

06

Checking & Repair

Each target is carefully inspected. Any defects are corrected to maintain micron-level accuracy.

07

Pellicle Mounting

A protective pellicle film can be added to prevent dust contamination, especially for demanding environments.

08

Quality Assurance

Every calibration target undergoes strict quality checks to ensure it meets industrial precision standards before shipment.

Minimum Feature Accuracy/Space

Our halcon-compatible glass calibration targets are engineered for applications where geometric accuracy is absolutely critical. Each feature, grid line, and spacing element is manufactured with sub-micron precision to ensure reliable, repeatable camera calibration results.

Types of Chrome Coating on Glass Test Target

Chrome coating minimizes geometric surface deviations, ensuring high camera calibration accuracy. Exceptional flatness improves measurement precision and long-term stability.

Chrome Type	Blue Chrome	Brown Chrome	Bright Chrome
Reflectivity	Low Reflectance(8–20%)	Standard Reflectance(10–30%)	High Reflectance(55–70%)
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

Thermal Expansion Coeff

Glass expands when heated and contracts when cooled.

Note: Quartz glass offers approximately 14x greater dimensional stability under temperature changes

What is Thermal Expansion Coeff in Glass Substrates?

Thermal expansion is how much a material grows or shrinks when temperature changes. Quartz glass has ultra-low thermal expansion (<5x102/°C), expanding only 0.55um per meter per degree Celsius-15 times less than standard glass. This ensures calibration targets maintain precision across temperaturevariations.

Parameters	Quartz Glass (Fused Silica)	Soda Lime Glass (Float Glass)
Thermal Expansion Coeff (15-200'C)	<8.0x10^-6/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

Tips to Prons & Cons

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.

Superior Light Transmission

CalibVision glass calibration targets achieve >90% light transmission at 550nm, significantly enhancing image clarity, contrast ratio, and measurement accuracy. It enables transmitted light calibration, reducing glare and improving corner detection reliability for precision optical systems.

Quartz Glass (Fused Silica): Transmission Rate >95% at 550nm

Soda Lime Glass (Float Silica): Transmission Rate >90% at 550nm

Why OD Matters in Calibration Targets

Optical Density (OD) determines contrast. Contrast determines accuracy.

A proper OD ensures precise corner detection, stable calibration results, and reliable performance in any lighting environment.

OD Specifications by Application

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

Ultra-Smooth Surface

Surface Roughness: Less than 25 nanometers

Note: Diagram shows microscopic surface profile with maximum height variations under 25nm

Surface Flatness Comparison

Note: Quartz glass consistently delivers 5-10× better surface flatness across all size ranges, making it ideal for precision optical 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)

Product Overview

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.

VisionMark™ Pro Series - Standard Halcon Series

Model Number Breaking Down: VMP-100G-80

Halcon Calibration Targets Overview Table

Model	Substrate Material	Overall Size (mm)	Active Pattern Area (mm)	Dot Diameter ø(mm)	Dot Spacing (mm)	Dot Array	Dot Position Accuracy
VMP-010G-02	Soda Lime Glass	10 x 10	2.0 x 2.0	0.25	0.5	7 x 7	±1μm
VMP-010G-03	Soda Lime Glass	10 x 10	3.0 x 3.0	0.1875	0.375	7 x 7	±1μm
VMP-010G-05	Soda Lime Glass	10 x 10	5.0 x 5.0	0.312	0.625	7 x 7	±1μm
VMP-010G-06	Soda Lime Glass	10 x 10	6.0 x 6.0	0.375	0.75	7 x 7	±1μm
VMP-020G-10	Soda Lime Glass	20 x 20	10 x 10	0.625	1.25	7 x 7	±1μm
VMP-030G-20	Soda Lime Glass	30 x 30	20 x 20	1.25	2.5	7 x 7	±1μm
VMP-040G-30	Soda Lime Glass	40 x 40	30 x 30	1.875	3.75	7 x 7	±1μm
VMP-050G-40	Soda Lime Glass	50 x 50	40 x 40	2.5	5.0	7 x 7	±1μm
VMP-060G-50	Soda Lime Glass	60 x 60	50 x 50	3.125	6.25	7 x 7	±1μm
VMP-068G-60	Soda Lime Glass	68 x 68	60 x 60	3.75	7.5	7 x 7	±1μm
VMP-076G-60	Soda Lime Glass	76 x 76	60 x 60	3.75	7.5	7 x 7	±1μm
VMP-100G-80	Soda Lime Glass	100 x 100	80 x 80	5.0	10.0	7 x 7	±1μm
VMP-110G-100	Soda Lime Glass	110 x 110	100 x 100	6.25	12.5	7 x 7	±1μm
VMP-127G-100	Soda Lime Glass	127 x 127	100 x 100	6.25	12.5	7 x 7	±1μm
VMP-135G-120	Soda Lime Glass	135 x 135	120 x 120	6.0	12.0	9 x 9	±1μm
VMP-010C-02	Ceramic	10 x 10	2.0 x 2.0	0.25	0.5	7 x 7	±1μm
VMP-010C-03	Ceramic	10 x 10	3.0 x 3.0	0.1875	0.375	7 x 7	±1μm
VMP-010C-05	Ceramic	10 x 10	5.0 x 5.0	0.312	0.625	7 x 7	±1μm
VMP-010C-06	Ceramic	10 x 10	6.0 x 6.0	0.375	0.75	7 x 7	±1μm
VMP-020C-10	Ceramic	20 x 20	10 x 10	0.625	1.25	7 x 7	±1μm
VMP-030C-20	Ceramic	30 x 30	20 x 20	1.25	2.5	7 x 7	±1μm
VMP-040C-30	Ceramic	40 x 40	30 x 30	1.875	3.75	7 x 7	±1μm
VMP-050C-40	Ceramic	50 x 50	40 x 40	2.5	5.0	7 x 7	±1μm
VMP-060C-50	Ceramic	60 x 60	50 x 50	3.125	6.25	7 x 7	±1μm
VMP-068C-60	Ceramic	68 x 68	60 x 60	3.75	7.5	7 x 7	±1μm
VMP-076C-60	Ceramic	76 x 76	60 x 60	3.75	7.5	7 x 7	±1μm
VMP-100C-80	Ceramic	100 x 100	80 x 80	5.0	10.0	7 x 7	±1μm
VMP-110C-100	Ceramic	110 x 110	100 x 100	6.25	12.5	7 x 7	±1μm
VMP-127C-100	Ceramic	127 x 127	100 x 100	6.25	12.5	7 x 7	±1μm
VMP-135C-120	Ceramic	135 x 135	120 x 120	6.0	12.0	9 x 9	±1μm

Substrate Poperties Comparison

See key features between different materials and select the suitable one according to your applications.

Property
Illumination
Thermal Expansion
Feature Accuracy
Min Feature Size
Surface Flatness
Max Temperature
Transmission
Cost

Quartz Glass
Backlighting/Tramsmissive
<5x10^-7/℃
±0.1μm
0.5μm
~5μm
1100℃
>93%
Medium

Soda Lime Glass
Backlighting/Tramsmissive
8.0 × 10⁻⁶ /℃
±1μm
0.7μm
~10μm
-300℃
>90%
Low

Matte Ceramic
Front Lighting/Reflective
7.2x10^-7/℃
±2μm
3μm
10-80m
80℃
N/A (Opaque)
High

Min. Feature Size - 5 Types of Target Substrate

Quartz Glass

≥0.5μm

Soda Line Glass

≥1μm

Matte Ceramic

≥2μm

Film

≥15μm

Photo Paper

≥0.3mm

Calibration Targets Material Selection Guide

Explore the key differences between glass and ceramic calibration targets.
Use the tabs below to compare materials, specifications and optical features in detail.

Halcon Calibration Target
on Ceramic

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

Chrome Coating Manufacturing Process Chart