Fused Silica Spherical Lenses

High-Precision Fused Silica Spherical Lenses

Fused silica spherical lenses are essential optical lenses used in a wide range of demanding applications, offering unparalleled precision and durability. Available in multiple configurations, including plano-concave, bi-concave, meniscus, plano-convex, and bi-convex, these lenses are manufactured to meet rigorous laser quality standards, such as exceptional surface figure and 20-10 scratch-dig surface quality. This high level of craftsmanship ensures reliable performance, even in the most challenging environments.

Made from UV-grade fused silica, these lenses provide exceptional optical performance, particularly for high-energy laser systems. UV fused silica is a synthetic form of silicon dioxide, known for its high purity and excellent transmission capabilities over a broad wavelength range, from 195 nm to 2100 nm. Their versatility allows for the design of both negative focal length lenses, such as concave options, and positive focal length lenses, such as convex options, to suit a wide array of optical setups.

With a very low thermal expansion coefficient, fused silica spherical lenses maintain stability under high operating temperatures, contributing to their exceptional resistance to radiation and environmental stress. Additionally, fused silica does not fluoresce under UV light, ensuring accuracy and clarity in UV laser and imaging systems.

These lenses can be supplied either uncoated or with a variety of AR (anti-reflection) coatings, allowing for optimal customization based on specific application needs. Fused silica lenses are widely used in applications involving lasers, precision imaging, and particularly in systems operating within the UV wavelength spectrum, where their chemical purity and excellent transmission make them the preferred choice.

Key applications for fused silica lenses include beam focusing and collimation in laser systems, imaging in scientific instruments, and integration into high-performance optical systems across medical, industrial, and aerospace fields. Their ability to handle both positive focal lengths and negative focal lengths makes them versatile and reliable components in many precision optical systems.

Factory Standard

Substrate Material: Corning 7980 fused silica, JGS1, JGS2, Heraeus fused silica
Shape: Spherical P-Concave, P-Convex, Bi-concave, Bi-convex, Concave-Convex or Aspheric
Surface Figure: l/10 at 633nm before coating
Surface Quality: 20-10 Shanghai Optics Laser Quality
Dimensional Tolerance: + 0.00mm, – 0.1mm
Thickness Tolerance: +/- 0.1mm
Chamfer: 0.15mm at 45° typical
Concentricity: 0.05mm
Focal Length Tolerance: +/- 0.5% typical
Clear Aperture: Exceeds central 85% of dimension