Calibration Board and Chart

Custom Calibration Plates / Charts

How to Customize Calibration Plates / Charts

1.

Select Substrate

Application Environment Starting Point for Material Selection

Based on the actual operating environment and measurement requirements, select an appropriate opaque or transparent substrate, then match it with the right fabrication process and coating.

Front illumination and back illumination represent different application scenarios:
・For front illumination (diffuse-reflective applications)
・For back illumination (transmissive applications)

Substrate Options Opaque / Transparent

Opaque Substrates (for front illumination: diffuse-reflective applications)

Ceramic: matte ceramic (non-glare); glossy ceramic (reflective)
Paper: museum-grade archival; 100% cotton fiber, acid-free, lignin-free
White PE laminated on glass: an excellent substitute for matte ceramic

Transparent Substrates (for back illumination: transmissive applications)

Glass:
- Soda-lime glass: commonly used; compatible light source can be customized
- Quartz glass: higher performance; compatible light source can be customized
Film: can be used without laminating onto glass
White film: semi-transparent colored ink printing

2.

Select Fabrication Process

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Minimum Line Width (Required Precision)	≥ 0.7 μm (±1 μm)	Process: Photolithography Coating: Chromium	Bright Cr (high reflectance) Brown Cr (common) Blue Cr (low reflectance, OD>4.5)	Glass with Cr or Ceramic with Cr available
	≥ 20 μm (±2 μm)	Process: Yellow-light process Coating: Photosensitive layer	Non-reflective (OD>5)	Glass photoresist, Carbon fiber, Glass laminated with white PE available
	≥ 15 μm (±10 μm)	Process: Photoplotting Coating: Silver halide	OD>4.5 at 100% black Grayscale OD controllable	Film available
	≥ 0.3 mm (±0.1 mm)	Process: Inkjet Coating: Ink	High contrast	White PE, Color film, Paper available

Customization Services

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Drawings	・Engineering drawings are required for custom calibration plates ・Standard drawings can be provided free of charge ・Paid drawing service available, including reverse modification / redesign	Backlight Customization	For transmissive calibration plates, custom light-source service is available
Lead Time	Varies from 3–10 days	Frame Customization	For reflective calibration plates, custom metal frames are available
Inspection Report	・In-house inspection report can be provided free of charge ・Testing report from Shenzhen Institute of Metrology can be arranged (paid by customer)	MOQ	Starting from 1 piece

Cutting Process

Cutting shape examples: internal corner, chamfer, inner hole, round, arbitrary arc

Cutting Methods Tolerance / Mass Production

Standard Cutting	・Suitable for rectangles ・Outline tolerance ±0.1 mm
Laser Cutting	・Any shape supported ・Outline tolerance ±0.01 mm ・Holes down to 0.1 mm ・Suitable for mass production