🟦 Spherical Lenses

Precision Spherical Lenses for Imaging, Sensing, and Laser Applications

Spherical lenses are the foundation of most classical optical systems. Designed with a constant radius of curvature, they are used to converge or diverge light with high efficiency. At Yighen Ultra Precision, we provide high-precision custom spherical lenses for a wide range of optical applications—from simple imaging to complex beam manipulation.

With decades of experience in glass and plastic optics fabrication, Yighen delivers reliable solutions from prototype to high-volume production, meeting demanding requirements in laser optics, medical systems, machine vision, and more.

🔹 Product Capabilities

• Lens types: Plano-convex, plano-concave, bi-convex, bi-concave, meniscus

• Material options: Optical glass (e.g. N-BK7, Fused Silica), plastic (PMMA, PC, COP), IR materials (CaF₂, MgF₂, Ge)

• Diameter: Ø1 mm – Ø150 mm

• Surface figure (P-V): ≤ 0.1 µm

• Surface roughness (Ra): ≤ 2.0 nm

• Centration tolerance: ≤ 1 arcmin

• AR coatings: Narrowband / broadband AR, UV-VIS-NIR-SWIR coatings

🔹 Spherical Lens Applications

Case Example: Yighen supplied high-precision spherical lenses for a laser collimator system, achieving <0.05° beam divergence with UV AR coating and P-V < 0.1µm.

🔹 Advanced Manufacturing & Materials

Yighen operates a full-stack production workflow tailored for precision spherical optics:

⚙️ Glass Lens Processing

• Grinding & polishing with ultra-precision Toshiba ULG series

• Interferometric testing for wavefront quality

• High-consistency batch production for diameters from 5mm to 100mm

🔷 Plastic Spherical Lenses

• Diamond turning of thermoplastics: PMMA, COP, PC, ZEONEX

• Ideal for prototype builds or mold insert validation

• High uniformity for light-weight and compact systems

🔬 Infrared Spherical Optics

• Diamond turning of CaF₂, MgF₂, Ge for IR windows & lenses

• Designed for thermal imaging, LIDAR, and NIR sensors

🔹 Why Choose Yighen for Spherical Lens Manufacturing?

• ✅ In-house CNC, grinding, and coating lines

• ✅ ISO-clean bonding & assembly areas

• ✅ Surface metrology down to 0.1 μm / Ra 2nm

• ✅ Custom coating design and deposition

• ✅ Support from one-off prototypes to >10,000 units/month

🧠 FAQs – Spherical Lens Engineering

Q: How do you minimize spherical aberration?
A: Through proper lens selection (e.g., biconvex vs. plano-convex), aspheric substitution, or by using achromatic correction in multi-element assemblies.

Q: Do you offer spherical lenses with UV or IR coatings?
A: Yes, we offer custom AR coatings across the UV, visible, NIR, and SWIR ranges, including dual-band coatings for hybrid systems.

Q: Can I get fast-turnaround prototypes?
A: Absolutely. Plastic spherical lens prototypes can be delivered within 7–10 working days, and glass lenses in 2–3 weeks, depending on specs.

🔮 Precision-Crafted Spheres — Simple in Shape, Serious in Performance

At Yighen, we produce plano-convex, bi-convex, plano-concave, and meniscus lenses with optical-grade polish and sub-micron centration.
Spherical lenses remain a reliable and cost-effective solution for focusing, collimation, and beam expansion — especially when paired with advanced coatings or mounted in assemblies.

Our capabilities cover optical glass, plastics, and IR materials — from small prototypes to mass production batches.

🔵 Request a Spherical Lens Quote
📩 Share your required diameter, curvature, and material — we’ll respond within 24 hours with solutions and lead time.

—

Want to check our available geometries, tolerances, and materials?
📄 Download Our Spherical Optics Capability Sheet

Curious how we support both standard and custom-curved spherical components?
👤 Learn More About Yighen

🔗 Related Content

• 🛠 Aspheric Lenses
  Go beyond spherical limitations with aberration-corrected freeform surfaces.

• 🧠 Optical Engineering Services
  We help select the optimal lens shape and pairing to meet your system requirements.

• 🔬 Optical Metrology & Testing
  From radius of curvature to focal length and centering error — measured in-house.

• 🧱 Optical Mass Production
  High-volume spherical lens manufacturing with coating and assembly included.