Lenses

A lens is a transmissive optical device that affects the focus of a light beam through refraction. A simple lens consists of a single piece of material, while a compound lens consists of several simple lenses, usually along a common axis.

OYEAH provides lenses with wide range of size and materials and the lenses types shown as the table:

LENS TYPE ILLUSTRATION
Plano Convex Lens
Plano Concave Lens
Double Convex Lens
Double Concave Lens
Meniscus Lens
Achromatic Lens

 

 

Applications:

  • Telecom Optical System
  • Laser Optical System
  • Instrument Optical System

Capability:

PARAMETER COMMERCIAL HIGH PRECISION
Material N-BK7,Fused Silica or upon request
Clear Aperture ≥85% ≥90%
Dimension Tolerance ±0.1mm ±0.02mm
Paraxial Focal Length Tol. ±2% ±0.5%
Surface Irregularity λ/4 @632.8nm λ/8@632.8nm
Surface Quality(S/D) 40-20 10-5
Centration ±3 arcmin ±1 arcmin
Assembly Cemented with Epoxy
AR Coating AR<0.2%@CWL

HR>99.5%@CWL

Other material ,sizes, tolerance and coatings are also available upon request.