Custom Non-Reflective Coating on Glass Test Calibration Targets / Charts / Masks

Description

Product Specification
Pattern				Substrate Material
Production Process	Laser Writing			Substrate Material of Glass	Soda Lime Glass
Minimum Line/space	20 μm			Thermal Expansion Coeff (15-200 ℃)	<100X10⁻⁷
Feature Accuracy Overall Accuracy	±2μm			Transmission (400~700nm)	>90%
Coating Type	Black Coating	Chrome+Black Coating	White PE + Black Coating （Perfectly Replace Ceramics）	Expansion Ratio	0.00085％ (8.5μm/℃ of 1M)
Reflectivity	< 3.89% @550nm	< 4.88% @540nm	<4.68% @550nm	Surface Flatness	<10μm (Dimension<100mm)
	< 4.08% @650nm	< 4.99% @640nm	< 4.72% @650nm
	< 3.67% @750nm	< 4.16% @740nm	< 4.164% @750nm
Coating Thickness	0.06mm (±0.01mm)	0.04mm (±0.01mm)	0.12mm (±0.01mm)	Thickness	1mm (±0.3mm)	1.6mm (±0.3mm)	3.2mm (±0.3mm)	4mm (±0.3mm)	4.8mm (±0.3mm)
Optical Density OD	>5	>4.2	>3	MIN / MAX Size	MIN: 3x3mm (±0.1mm) MAX: 1.5x2.6m (±0.1mm)
Coating Glossy or Matte	Matte	Matte	Matte	Rockwell hardness	3-3.5 HRA
Reflection Type	Transmission	Transmission	Diffuse Reflection	Surface Quality	Scratch/Dig 40-20
Positive / Negative	Positive: Opaque Pattern, Clear Background. Negative: Clear Pattern, Opaque Background.			Surface Roughness	<0.2-0.7μm
Protection Layer	Available			Cutting	Any Shape by Laser Cutting (±0.01mm)

Custom Service
Digitalize Drawing	Our engineers would help you digitize the drawing for free.	Third Party Certification	Provide third-party certification reports.
Matchable Backlight	Provide matchable backlight for glass targets.	Test Report by OKLAB	Available
Customization Quantity	Customization MOQ is 1 pcs.	Customization Production Days	5 Working Days

Coating Type
Type
Type	Black Coating	Chrome+Black Coating	White PE + Black Coating （Perfectly Replace Ceramics）
Reflectivity	< 3.89% @550nm	< 4.88% @540nm	<4.68% @550nm
	< 4.08% @650nm	< 4.99% @640nm	< 4.72% @650nm
	< 3.67% @750nm	< 4.16% @740nm	< 4.164% @750nm
Coating Thickness	0.06mm (±0.01mm)	0.04mm (±0.01mm)	0.12mm (±0.01mm)
Optical Density OD @550nm	>5	>4.2	>3
Coating Glossy or Matte	Matte	Matte	Matte
Reflection Type	Transmission	Transmission	Diffuse Reflection

• Cutting is accurate, tolerance ±0.01mm.
• Can cut any shape.
• Can cut a 0.1mm hole.
• High yield to make sure the delivery is on time.

Important Note

Important Shipping & Customs Information

Please note: Your order total includes product cost and shipping fees only. Import duties and customs fees are not included and will be collected separately by your local customs authority upon delivery.

Customs & Duties

Import duties vary by destination country and are determined by your local customs office
You will be contacted directly by customs or the delivery carrier to arrange payment
Oklab cannot pre-collect customs fees as rates differ across international destinations

Additional Documentation

If your delivery location requires special documentation (such as tax ID numbers or import licenses), our team will contact you after order placement to obtain the necessary information.

Questions?

For shipping inquiries, please contact us at sales@oklab.com

By placing an order, you acknowledge responsibility for any applicable import duties, taxes, and customs fees in your country.

Description
Important Note

Product Specification
Pattern				Substrate Material
Production Process	Laser Writing			Substrate Material of Glass	Soda Lime Glass
Minimum Line/space	20 μm			Thermal Expansion Coeff (15-200 ℃)	<100X10⁻⁷
Feature Accuracy Overall Accuracy	±2μm			Transmission (400~700nm)	>90%
Coating Type	Black Coating	Chrome+Black Coating	White PE + Black Coating （Perfectly Replace Ceramics）	Expansion Ratio	0.00085％ (8.5μm/℃ of 1M)
Reflectivity	< 3.89% @550nm	< 4.88% @540nm	<4.68% @550nm	Surface Flatness	<10μm (Dimension<100mm)
	< 4.08% @650nm	< 4.99% @640nm	< 4.72% @650nm
	< 3.67% @750nm	< 4.16% @740nm	< 4.164% @750nm
Coating Thickness	0.06mm (±0.01mm)	0.04mm (±0.01mm)	0.12mm (±0.01mm)	Thickness	1mm (±0.3mm)	1.6mm (±0.3mm)	3.2mm (±0.3mm)	4mm (±0.3mm)	4.8mm (±0.3mm)
Optical Density OD	>5	>4.2	>3	MIN / MAX Size	MIN: 3x3mm (±0.1mm) MAX: 1.5x2.6m (±0.1mm)
Coating Glossy or Matte	Matte	Matte	Matte	Rockwell hardness	3-3.5 HRA
Reflection Type	Transmission	Transmission	Diffuse Reflection	Surface Quality	Scratch/Dig 40-20
Positive / Negative	Positive: Opaque Pattern, Clear Background. Negative: Clear Pattern, Opaque Background.			Surface Roughness	<0.2-0.7μm
Protection Layer	Available			Cutting	Any Shape by Laser Cutting (±0.01mm)

Custom Service
Digitalize Drawing	Our engineers would help you digitize the drawing for free.	Third Party Certification	Provide third-party certification reports.
Matchable Backlight	Provide matchable backlight for glass targets.	Test Report by OKLAB	Available
Customization Quantity	Customization MOQ is 1 pcs.	Customization Production Days	5 Working Days

Coating Type
Type
Type	Black Coating	Chrome+Black Coating	White PE + Black Coating （Perfectly Replace Ceramics）
Reflectivity	< 3.89% @550nm	< 4.88% @540nm	<4.68% @550nm
	< 4.08% @650nm	< 4.99% @640nm	< 4.72% @650nm
	< 3.67% @750nm	< 4.16% @740nm	< 4.164% @750nm
Coating Thickness	0.06mm (±0.01mm)	0.04mm (±0.01mm)	0.12mm (±0.01mm)
Optical Density OD @550nm	>5	>4.2	>3
Coating Glossy or Matte	Matte	Matte	Matte
Reflection Type	Transmission	Transmission	Diffuse Reflection