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Description

Sapphire spherical lenses are precision optical components designed for demanding UV, visible, and infrared applications requiring exceptional durability, thermal stability, and scratch resistance. Manufactured from single-crystal aluminum oxide (Al2O3), sapphire optics provide excellent optical transmission across a broad spectral range while maintaining superior mechanical strength in harsh operating environments.

Compared to conventional optical glass, sapphire lenses offer significantly higher hardness, improved chemical resistance, and enhanced thermal performance, making them ideal for high-power laser systems, aerospace optics, semiconductor equipment, industrial imaging, spectroscopy, biomedical instrumentation, and defense applications.

With excellent optical transmission from ultraviolet (UV) to infrared (IR) wavelengths, Sapphire Spherical Lenses are widely used in laser systems, imaging equipment, optical sensors, medical devices, aerospace technologies, and scientific instrumentation. Their spherical surface design enables accurate light focusing, collimation, and beam control for high-performance optical systems.

Combining exceptional mechanical strength with high optical performance, Sapphire Spherical Lenses are the ideal choice for precision optical applications operating in harsh or high-temperature environments.

Why Sapphire Is Used in Precision Optical Lenses

Sapphire is widely used in precision optics because of its exceptional combination of optical transmission, mechanical durability, and environmental resistance. Sapphire transmits efficiently from the ultraviolet through the infrared spectrum while offering significantly greater hardness and scratch resistance than conventional optical glass materials.

Its high thermal conductivity and resistance to chemical attack make sapphire especially valuable in laser systems, aerospace optics, semiconductor equipment, and industrial imaging applications operating under demanding environmental conditions.

Advantages of Sapphire Optical Lenses

Sapphire optical lenses provide several important advantages in industrial and scientific photonics systems, including exceptional surface hardness, broad UV-to-IR transmission, thermal stability, and resistance to scratches and chemical exposure.

These characteristics make sapphire lenses particularly effective for high-power laser applications, rugged imaging systems, aerospace optics, and harsh-environment instrumentation where long-term optical performance and durability are critical.

Sapphire Spherical Lenses for UV, Visible, IR, and High-Power Laser Applications

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Specifications

Lens Type: Plano-Convex, Plano-Concave, Bi-Convex, Bi-Concave
Material: BK7, FS, UVFS, Al2O3 (Sapphire)
Diameter: 25 mm
Focal Length: Not Specified
Edge Thickness, Te: Not Specified
Radius: Maximum 200mm
Radius Tolerance: +/-2%
Diameter: 5mm to 200mm+
Diameter Tolerance: +/-0.1mm (+/-0.005mm for customized high precision)
Thickness Tolerance: +/-0.1mm (+/-0.005mm for customized high precision)
Surface Quality: 60/40 (10/5 for customized high precision)

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Features

Engineered with advanced polishing technology and strict quality control, the lenses provide

  • outstanding surface quality
  • high precision curvature
  • minimal optical distortion. 

Various dimensions, radii, thicknesses, and coating options such as AR and BBAR coatings are available to meet customized application requirements.

Applications

Applications of Sapphire Spherical Lenses

Sapphire spherical lenses are widely used in high-power laser systems, aerospace imaging, spectroscopy, semiconductor inspection, industrial machine vision, biomedical instrumentation, and defense optics applications.

Their exceptional hardness, broad spectral transmission, and resistance to thermal shock and chemical exposure make sapphire optics ideal for harsh-environment photonics systems requiring long-term optical stability and durability.

Frequently Asked Questions

What are sapphire spherical lenses?
Sapphire spherical lenses are precision optical components manufactured from single-crystal sapphire (Al₂O₃) and designed for applications requiring high durability, excellent optical transmission, and resistance to harsh environments. They are commonly used in laser systems, aerospace optics, spectroscopy, semiconductor equipment, industrial imaging, and scientific instrumentation operating across ultraviolet (UV), visible, and infrared (IR) wavelengths.
Why are sapphire lenses used in laser systems?
Sapphire lenses are widely used in laser systems because they offer exceptional hardness, high thermal stability, and strong resistance to scratching and chemical exposure. These properties make sapphire optics particularly suitable for high-power laser applications and demanding industrial environments where conventional optical glass may suffer from thermal stress or surface damage.
What wavelengths do sapphire optical lenses transmit?
Sapphire optical lenses provide broad spectral transmission from the ultraviolet through the visible and into portions of the infrared spectrum. This wide transmission range makes sapphire optics useful in UV imaging, visible-light systems, infrared sensing, spectroscopy, laser processing, and scientific photonics applications requiring durable broadband optical components.
What are the advantages of sapphire optics compared to glass lenses?
Compared to conventional optical glass, sapphire optics provide significantly greater hardness, scratch resistance, thermal conductivity, and chemical durability. Sapphire lenses are highly resistant to environmental damage and can maintain optical performance in harsh industrial, aerospace, semiconductor, and defense applications where standard glass optics may degrade over time.
Are sapphire lenses scratch resistant?
Yes, sapphire lenses are extremely scratch resistant. Sapphire is one of the hardest optical materials available and is second only to diamond in hardness. This exceptional durability makes sapphire optics ideal for rugged environments, abrasive conditions, and industrial systems where long-term optical reliability is important.
Can sapphire lenses withstand high temperatures?
Yes, sapphire lenses offer excellent thermal stability and can operate in high-temperature environments more effectively than many conventional optical materials. Their resistance to thermal shock and high thermal conductivity make them well suited for high-power lasers, aerospace optics, semiconductor manufacturing equipment, and industrial photonics systems exposed to elevated temperatures.
What applications use sapphire spherical lenses?
Sapphire spherical lenses are used in a wide range of industrial, scientific, medical, and aerospace applications. Common uses include high-power laser systems, spectroscopy, semiconductor inspection, biomedical imaging, industrial machine vision, infrared sensing, aerospace instrumentation, and harsh-environment optical systems requiring high durability and stable optical performance.

Got more questions? Use the inquiry form to ask the supplier directly.

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