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

Properties	Data & Specification
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:	~5um	Surface Roughness	<0.025um
	Dimension 130-220mm:	~10um;
	Dimension 220-450mm:	~20um;
	Dimension 220-450mm:	~20um;

Properties	Value	Properties	Value
Reflectance (420~700nm)	Rave<3.643%@420~700nm (Reflectance can be optimized to Rave<0.3% by applying AR coating on glass surface if needed)	Transmission	Tmax <93.709%@420~700nm (Transmittance can be optimized to Tmax<99.2% by applying AR coating on glass surface if needed)
Refractive Index	1.4701@400nm;	Surface Quality	Scratch:Dig<=40:20
	1.4585@587nm;
	1.4553@700nm;
Coefficient of Thermal Expansion (CTE) (15 to 200 ℃)	<5.0*10⁻⁷	Manufacturing Temperature（°C）	23°C
Compressive Strength	1100Mpa	Bending Strength / Flexural Strength	67Mpa
Tensile Strength	48Mpa	Poisson's Ratio	0.14-0.17
Young Modulus	72000Mpa	Modulus of rigidity	31000Mpa
Moh's hardness	7	Operating Temperature	-40°C to +1100°C
Dielectric Constant	3.7-3.9MHz	Coefficient of Thermal Conductivity（°C）	1.47/m°C

Positive: Dark pattern on transparent background

Negative: Transparent pattern on dark background

Why Choose Chrome on Glass Substrate?

The superior substrate choice for the most demanding calibration applications

Minimum Line/space

Why Substrate Choice Matters for Your Application

Industries that demand the ultimate in calibration precision

Note💡 Left: Soda lime glass targets resolve features down to 1μm – suitable for general testing applications.

Right: Quartz glass targets achieve 0.5μm resolution – essential for high-precision measurement systems requiring maximum accuracy.

Substrate Properties Comparison

See why quartz glass is the premium choice for ultra-precision applications.

Property

Thermal Expansion

Feature Accuracy

Min Feature Size

Surface Flatness

Max Temperature

Transmission

Cost

Quartz Glass

<5×10⁻⁷/°C

±0.1μm

0.5μm

~5μm

1100°C

>93%

Premium

Soda Lime Glass

85×10⁻⁷/°C

±1μm

0.7μm

~10μm

~300°C

>90%

Standard

Ceramic

7.2×10⁻⁶/°C

±2μm

3μm

10-80μm

80°C

N/A (Opaque)

Moderate

Thermal Expansion Coeff

Glass expands when heated and contracts when cooled.

Note: Quartz glass offers approximately 14× 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 (<5×10⁻⁷/°C), expanding only 0.55μm per meter per degree Celsius – 15 times less than standard glass. This ensures calibration targets maintain precision across temperature variations.

Parameters

Soda Lime Glass (Float Glass)

Quartz Glass (Fused Silica)

Thermal Expansion Coeff (15-200 ℃)

<8.0×10 ^-7/K

<5.0×10^-7 /K

Expansion Ratio (20-200 ℃)

0.00085％

0.00006％

Real-World Expansion Impact of 1 Meter

1m glass changes by 8.5μm per 1°C

1m glass changes by 0.6μm per 1°C

Temperature Stability

Standard stability

14x more stable

Best Applications

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*10⁻⁷, it delivers superior thermal stability (0.55μm/°C vs 8.5μm/°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

Industries that demand the ultimate in calibration precision

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

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

Surface Flatness Comparison

Glass expands when heated and contracts when cooled.

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

What is Surface Flatness?

Surface flatness indicates how level a target’s surface is across its entire area. Quartz glass maintains flatness within 5μm for targets up to 130mm, ensuring consistent optical path length and accurate measurements throughout the calibration area.

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)

Ultra-Smooth Surface

Surface Roughness: Less than 25 nanometers

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

Our precision-polished quartz glass features an exceptionally smooth surface with microscopic variations of less than 0.025μm (25nm) – approximately 2,000 times thinner than a human hair.

This near-perfect surface quality ensures:

Superior optical performance
Minimal light scatter
Optimal coating adhesion
Exceptional image clarity

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

Types of Chrome Coating on Glass Test Target

Choose the perfect coating for your specific application requirements

Standard Brown Chrome

Reflectivity：

<25% @550nm

Optical Density:

>3.0

Best For:

General inspection applications

Low-Reflective Blue Chrome

Reflectivity：

<5% @680nm

Optical Density:

>5.0

Best For:

High-contrast applications

High-Reflective Silver Chrome

Reflectivity：

<65% @436nm

Optical Density:

>3.0

Best For:

Reflective measurements

Low Reflectivity Quartz Glass

Key Insight: Blue Chrome exhibits the lowest reflectivity in the 640-740 nm wavelength range, dropping to nearly 0% reflectivity

Note: Graph shows comparative reflectivity (%) of Bright Chrome, Brown Chrome, and Blue Chrome across 440-1040 nm wavelength range.

Standard Brown Chrome

Best for: General-purpose applications
Reflectivity: <25% for good contrast
Cost-effective choice when extreme precision isn’t critical

Low-Reflective Blue Chrome

Best for: High-contrast applications
Reflectivity: <5% for maximum contrast
Ideal when you need to eliminate stray light

High-Reflective Silver Chrome

Best for: Reflective measurement systems
Reflectivity: <65% for bright reference patterns
For applications requiring reflected light

Standard Type - Dark Brown Chrome

Industry Standard for General Applications

Front surface:

Dark brown on air side

Back surface: :

Silver on glass side

Front Surface Reflectivity:

<25% @550nm

Optical Density (OD):

>3.0

Front Surface/Air Side Brown (Front View)

Glass Side Silver (Back View)

Custom Type - Blue Chrome - Silver

Enhanced Contrast Performance

Front surface:

Blue on air side

Back surface: :

Silver on glass side

Front Surface Reflectivity:

<5% @680nm

Optical Density (OD):

>5.0

Front Surface/Air Side Blue (Front View)

Glass Side Silver (Back View)

Custom Type - Blue Chrome - Blue

Maximum Contrast Configuration

Front surface:

Blue on air side

Back surface: :

Blue on glass side

Front Surface Reflectivity:

<5% @680nm

Optical Density (OD):

>5.0

Front Surface/Air Side Blue (Front View)

Glass Side Silver (Back View)

Custom - High-Reflective Chrome (Silver)

Reference Standard Configuration

Front surface:

Silver on air side

Back surface: :

Silver on glass side

Front Surface Reflectivity:

<65% @436nm

Optical Density (OD):

>3.0

Front Surface/Air Side Silver (Front View)

Glass Side Silver (Back View)

Choose Your Ideal Chrome Coating

Based on the demonstrated reflectivity performance, select the coating that matches your application’s contrast and measurement requirements. Each option delivers consistent, reliable results for different optical testing scenarios.

Custom Test Targets Precision Thickness Options

Available in multiple thicknesses to suit your application requirements

1.6mm

Ultra-thin for compact designs

2.3mm

Standard precision applications

3.0mm

Enhanced durability

10mm

Maximum stability

All options feature precision-ground edges and uniform thickness across the entire surface.

Size & Dimension & Tolerance

Properties	Value			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 (Consistent optical path length)
Edge Finish	Beveled ±1°		Purpose	Prevents edge damage and light scattering
Surface Flatness (um)	Dimension <130mm:	~5μm	Surface Roughness	<0.025μm for optimal optical quality
	Dimension 130-220mm:	~10μm
	Dimension 220-450mm:	~20μm
	Dimension 220-450mm:	~20μm

Density Measurement

Custom Calibration Targets Dimensional Range

Available in multiple thicknesses to suit your application requirements.

Custom sizes and shapes available upon request.

1200x850mm

Maximum dimensions

1×1mm

Minimum dimensions

Precision Laser Cutting Custom Shapes Made Easy

From simple to complex designs, our laser cutting technology delivers exactly what you need.

Corner | Chamfer | Hole | Round | Oval

Chrome Test Target Manufacturing

Step-by-Step Production Process

Manufacturing Workflow:

Substrate Material

Step 1: High-quality glass or quartz substrate preparation with optical-grade surface finish and flatness specifications.

Laser Writing

Step 2: Precision laser systems create the photoresist pattern with sub-micrometer accuracy, defining the exact resolution groups and elements.

Developing

Step 3: Chemical developing process reveals the exposed photoresist areas, creating the initial pattern structure ready for etching.

Etching

Step 4: Selective etching removes material to create the final high-contrast resolution patterns with sharp, well-defined edges.

Pellicle Mounting (Optional)

Step 5: Protective pellicle film installation provides contamination protection while maintaining optical access to the target patterns.

Inspection & Repair

Step 6: Comprehensive quality control using advanced optical inspection systems to verify feature accuracy and pattern integrity.

Stripping & Cleaning

Step 7: Final photoresist removal and precision cleaning ensures optimal optical performance and long-term stability.

Quality Assurance

Step 8: Final verification testing confirms all specifications meet USAF 1951 standards with documented traceability and certification.

What Makes Our Test Targets Excellent

Our calibration targets undergo rigorous testing by accredited third-party laboratories to ensure they meet international standards and exceed your performance expectations.

Automatic Post-treatment

Spin Coating Equipment

3D Automatic Measuring

IC-Mask Writer Equipment

AOI Inspection Equipment

Optical Density Meter

Precision Backlighting for Glass Calibration Targets

From simple to complex designs, our laser cutting technology delivers exactly what you need.

Large illumination area: 2.1 × 1.4 m
Superior uniformity: 95%
Dual-spectrum capability: IR and visible light
High brightness output
Ultra-slim profile

Perfect Applications

Industries that demand the ultimate in calibration precision

Why Custom Chrome Test Targets from us?

LET’S TALK BUSINESS

Ready to Take Your Project to the Next Level?

Tell us any of your requirements on test target:

Custom Manufacturing (OEM/ODM)
– Purpose-built to your exact specs

Low MOQ Starts from 1pcs
– End-to-end support from prototype to production

Trade & Distribution
– Volume discounts for channel partners

Global Sales & Support
– Build your brand with our proven quality

3rd-Party Certification
– Test our quality risk-free

Fast-Track Quotes
– Competitive pricing delivered within 24 hours

Request A Quote

Please fill out our quote request form or email us at sales@calibvision.com, and we will get back to you within 24 hours!

Contact Info

FAQs

Questions people often asked

1.What is Feature Size Accuracy?

Feature size accuracy refers to how precisely the dimensions of patterns (dots, lines, squares) match their intended measurements. Chrome on quartz glass targets achieve ±0.1μm accuracy, meaning features are within 0.1 micrometers of their designed size – that’s 1000 times smaller than a human hair.

2.What is Optical Density (OD)?

Optical density measures how much light a coating blocks. Higher OD means better contrast. Chrome coatings achieve OD >3.0 to >5.0, blocking 99.9% or more of incident light for sharp, high-contrast patterns essential for machine vision systems.

3.What's included when I received the package?

Dimensional inspection reports
Optical performance data
Material certificates
Traceability documentation