Low-Backreflection Treated Sapphire Glass Optical Lens for Systems

Basic Information

Model NO.

1-1000mm

Magnification

>1000X

Type

Biological

Mobility

Desktop

Light Source

Laser

Material

Synthetic Sapphire Glass

Hardness

Mohs Hardness of 9

Density

3.98 G/Cm³

Melting Point

2040 °C

Transmission

0.15 μm - 5.5 μm

Certification

ISO9001

Coating

UV / AR / HR

Product Description

Parameter Category	Parameter Name	Value / Description	Notes
Basic Info	Material Composition	Single Crystal α-Aluminium Oxide	Synthetic Sapphire
Physical	Mohs Hardness	9	Second only to diamond
Physical	Young's Modulus	345 GPa	High structural rigidity
Thermal	Melting Point	2040 °C	Excellent heat resistance
Thermal	Thermal Conductivity	25 - 35 W/(m·K)	~30x higher than ordinary glass
Optical	Transmission Range	0.15 μm - 5.5 μm	Deep UV to Mid-IR
Optical	Refractive Index	no = 1.768 / ne = 1.760	@587.6 nm
Surface	Surface Finish	10-5 Scratch-Dig	High Precision Quality

Certifications

Frequently Asked Questions

Is sapphire glass made from real natural gemstones?

No, it is synthetic sapphire crystal created by crystallizing aluminum oxide at high temperatures. It has identical physical properties to natural sapphire but is man-made for industrial and optical use.

What are the primary advantages of using sapphire glass?

The main advantage is its extreme hardness (Mohs 9), making it nearly impossible to scratch with everyday materials. It also offers superior thermal conductivity and a wide optical transmission range from UV to IR.

Is sapphire glass shatterproof since it is so hard?

Not necessarily. High hardness means high scratch resistance, but it can be brittle. While it is very durable, sharp point impacts can cause it to chip or shatter. It is designed for scratch prevention rather than high-impact drop protection.

Can the sapphire windows be customized in terms of size and shape?

Yes, we offer customization for flat, spherical, and aspheric forms. Dimensions can range from 1mm to 1000mm with precision tolerances as tight as ±0.01 mm depending on requirements.

What kind of coatings can be applied to sapphire lenses?

Common options include Anti-Reflection (AR) to increase transmission, High Reflection (HR) for laser applications, and Oleophobic/Hydrophobic coatings for anti-fingerprint and easy-clean properties.

What is the maximum operating temperature for sapphire glass?

In a vacuum or inert gas environment, it can withstand up to 1900°C. In standard air, it is generally recommended for use up to 1000°C to avoid surface devitrification.