Custom Chrome on Glass Test Calibration Targets / Charts / Masks

Model NO.    :

Glass Test Calibration Targets
Product Specification
Pattern Substrate Material
Production Process Laser Writing Substrate Material of Glass Soda Lime Glass (Float Glass) Quartz Glass (Fused Silica)
Minimum Line/space 1μm / 0.7μm Transmission (@550nm) >90% >95%
Feature Accuracy Overall Accuracy ±1μm Thermal Expansion Coeff (20-200 ℃) <80X10⁻⁷/K <5.0x10⁻⁷/K
Coating Type Bright Chrome (High Reflective) Brown Chrome (Usual) Blue Chrome (Low Reflective) Expansion Ratio (20-200 ℃) 0.00085% (8.5μm/℃ of 1m) 0.00006% (0.6μm/℃ of 1m)
Reflectivity < 66% @550nm <6% @550nm < 13.4% @550nm Surface Flatness <5μm (Dimension<100mm) <1μm (Dimension<50mm)
< 73% @650nm < 17% @650nm < 1.8% @650nm <20μm (Dimension<200mm) <2μm (Dimension<100mm)
< 68% @750nm < 23% @750nm < 2.67% @750nm <50μm (Dimension>200mm) <5μm (Dimension>100mm)
Coating Thickness 120nm (±0.20nm) 100nm (±0.20nm) 120nm (±0.20nm) Surface Roughness <0.025μm
Optical Density OD >3 >3 >4.5 Thickness 1.6mm (±0.3mm) 2.3mm (±0.3mm) 3.0mm (±0.3mm) 4.8mm (±0.3mm)
White Background Minimum Line/space: 10μm, Thickness: 40μm (White & Smooth Coating on the Back Side) MIN / MAX Overall Size MIN: 4x4mm, MAX: 800x960mm (±0.1mm)
Positive / Negative Positive: Opaque Pattern, Clear Background. Negative: Clear Pattern, Opaque Background. Overall Shape Any Shape by Laser Cutting Square Oval Round
Frosted Glass on the Back Frosted glass on the back are on request. Special-shaped Hole Chamfer Angle Corner
Custom Service
Digitalize Drawing Our engineers would help you digitize the drawing for free. Customization Production Days 5-10 Working Days
Third Party Certification Available Matchable Backlight Provide matchable backlight for glass targets.

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