Optical Lenses are optical components designed to focus or diverge light. Optical Lenses, which may consist of a single or multiple elements, are used in a wide variety of applications from microscopy to laser processing.
Yunlang can supply Plano Convex Lens, Double Convex Lens , Plano Concave Lens, Double Concave Lens, Meniscus Lens, Achromatic Lens and aspheric Lens.
Optical glass lenses have a wide variety of applications. Germanium (Ge), Silicon (Si), or Zinc Selenide (ZnSe) lenses are ideal for transmitting the Infrared (IR) spectrum, while Fused Silica is well suited for the Ultraviolet (UV).
Specifications
| Material | N-BK7, H-K9L, Fused Silica, H-ZF52A, Silicon, MgF2, CaF2, Sapphire, ZnSe, ZnS, etc. |
| Diameter Tolerance | +/-0.1mm, +/-0.01mm |
| Center Thickness Tolerance | +/-0.1mm, +/-0.01mm |
| Focal Length Tolerance | ±1% |
| Centration | <3 arc min,<1 arc min |
| Clear Aperture | >90% |
| Flatness | <1.5Lambda (General), <Lambda/10 (High Precision) |
| Irregularity | 0.2-0.5 Lambda |
| Surface Quality(S/D) | 60/40,40/20 or better |
| Coating | AR@ Ultraviolet (UV), visible, or Infrared (IR) spectrums |
Optical Half-Penta Prisms 
