λ10 UV Fused Silica Plano-convex Lenses

A Plano-Convex (PCX) lens is an optical element characterized by a positive focal length and a flat-spherical surface profile. These lenses are designed for various applications including light focusing, collection, and collimation. They can also be used to decrease the focal length of optical assemblies and magnify images. Compared to biconvex lenses, plano-convex lenses have two non-identical sides, making them ideal for infinite conjugate ratios (objective distance: image distance). However, they still effectively reduce spherical aberrations when the absolute conjugate ratio is greater than 5:1. For conjugate ratios below 5:1, using plano-convex lenses in pairs or opting for a biconvex lens is recommended.

UV Fused Silica is the amorphous form of Silicon Dioxide, known for its superior transmission in the UV region and usability across the UV to Near-infrared (NIR) spectrum. It boasts low thermal expansion, high optical homogeneity, chemical inertness, mechanical strength, and an absence of fluorescence under UV radiation. Compared to N-BK7, UV Fused Silica is more reliable in high-temperature environments and offers better transmission in the ultraviolet spectrum.

Specifications:

Lens Form	Plano-convex Lens
Centering Error	≤2 arc min
Working Wavelength Range	200-2200nm
Diameters	12.7mm, 25.4mm, or custom
Surface Quality (S/D)	10/5
Coating	λ/10
Clear Aperture	90%
Coating	Uncoated, V-coating, BBAR coating
Protective Chamfer	0.2mmx45°
Material	Custom: Corning HPFS glass series, JGS1 Stock:Corning 7980-0F, 7980-1D

 

Features:

• Superior Transmission in UV and NIR Regions: UV Fused Silica offers excellent transmission from the ultraviolet (UV) to the near-infrared (NIR) spectrum, making it versatile for a wide range of applications.
• High Optical Homogeneity: The material’s uniform composition ensures consistent optical performance, reducing image distortion and improving clarity.
• Low Thermal Expansion: UV Fused Silica has a low coefficient of thermal expansion, maintaining optical properties even in varying temperature conditions, which is crucial for high-precision applications.
• High Surface Quality (10/5 S/D): The superior surface quality with a scratch/dig specification of 10/5 ensures minimal surface imperfections, leading to reduced scatter and improved image quality.
• High Precision (λ/10 Irregularity): The λ/10 surface irregularity ensures a high degree of accuracy in the lens shape, resulting in better focusing and reduced optical aberrations.
• Chemical Inertness: UV Fused Silica is chemically inert, making it resistant to environmental factors and suitable for use in harsh conditions.
• Mechanical Strength: The material’s robust mechanical properties ensure durability and longevity, even in demanding applications.
•  Absence of Fluorescence: UV Fused Silica does not fluoresce under UV radiation, making it ideal for applications requiring high-purity optical materials.
• Flexibility in Application: These lenses are suitable for various uses, including detectors, imaging instruments, lasers, and fiber optics, due to their excellent transmission and high precision.

Applications:

• Detectors: Enhancing light collection and focusing.
• Imaging Instruments: Improving image quality and reducing aberrations.
• Lasers: Focusing and collimating laser beams.
• Fiber Lasers: Efficient light coupling and transmission.

Kingwin Optics offers both stocked and custom Plano-Convex lenses made from high-quality UV Fused Silica sourced from Corning (e.g., 7980-0F, 7980-1D) or JGS1. These lenses are ideal for wavelengths ranging from 200-2200nm and are high-precision lenses with an irregularity of λ/10 and surface qualities of 10/5 S/D.