High-Quality Anti-Reflective Sapphire Glass for AR Glasses in B2B Markets

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Basic Product Information

Model NO.

1-1000mm

Shape

Single-Lens

Material

Optical Glass / Synthetic Sapphire

Lenses Color

Clear

Certification

RoHS, ISO9001

Hardness

Mohs Hardness of 9

Density

3.98 G/Cm³

Refractive Index

1.76-1.77 (@589nm)

Transmission

0.15 μm - 5.5 μm

Melting Point

2040 °C

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Technical Specifications

Parameter Category	Parameter Name	Value / Description	Notes
Physical Properties	Density	3.97 - 3.99 g/cm³	-
	Mohs Hardness	9	Second only to diamond
	Young's Modulus	345 GPa	-
	Compressive Strength	>2.0 GPa	-
Thermal Properties	Melting Point	2040 °C	-
	Thermal Conductivity	25 - 35 W/(m·K)	@ 20°C
	Max Operating Temp	1900 °C (Inert Gas)	-
Optical Properties	Transmission Range	0.15 μm - 5.5 μm	Deep UV to Mid-IR
	Abbe Number	72.2	Low dispersion
	Internal Transmittance	>85% @ 0.3μm	1mm thick
Surface Quality	Flatness	λ/10 @ 632.8nm	High Precision
	Surface Finish	10-5 Scratch-Dig	MIL-PRF-13830B
	Parallelism	< 3 arcsec	Customizable

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Application Fields

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Consumer Electronics: Smartphone camera covers, smartwatch crystals, and fingerprint sensors.

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Industrial & Research: High-power laser windows, vacuum viewports, and spectrometer components.

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Aerospace & Defense: Missile domes, EO/IR pod windows, and periscopes.

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Medical Devices: Endoscope protection lenses and surgical device windows.

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Advanced Coating Options

AR Coating

Anti-Reflection, increases transmission

HR Coating

High Reflection for laser applications

AF Coating

Oleophobic/Hydrophobic (Anti-fingerprint)

ITO Coating

Conductive transparent shielding

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Packing & Delivery

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Frequently Asked Questions

Q1: What is the spectral transmission range of your sapphire glass?

Our sapphire glass offers an exceptionally wide transmission range from 0.15 μm (Deep UV) to 5.5 μm (Mid-Infrared), making it ideal for various optical applications.

Q2: How does the hardness of sapphire glass compare to other materials?

Sapphire glass has a Mohs hardness of 9, which is second only to diamond. It provides superior scratch resistance and durability compared to standard optical glass.

Q3: Can the sapphire windows withstand extreme temperatures?

Yes, sapphire has a very high melting point of 2040 °C. It can operate at temperatures up to 1900 °C in vacuum or inert gas environments and approximately 1000 °C in air.

Q4: What types of optical coatings can be applied?

We offer various coating options including Anti-Reflection (AR) to increase transmission, High Reflection (HR) for lasers, Oleophobic/Hydrophobic for anti-fingerprint properties, and conductive ITO coatings.

Q5: Is sapphire glass resistant to chemical corrosion?

Sapphire glass is highly chemically stable and insoluble in water. It is resistant to most strong acids and bases, though it is not resistant to hydrofluoric acid (HF) or hot phosphoric acid.

Q6: What precision levels can you achieve for surface finish?

We can achieve high-precision surface finishes up to 10-5 Scratch-Dig and parallelism of less than 3 arcsec, depending on customer requirements.