Optical Plano-Concave Lenses

Optical Plano-Concave Lenses
*Lenses have many applications in range from the simple collection of the scanning of laser beams to precise imaging and image transferring. Lenses are classified as single, cylindrical and achromatic lenses according to the different applications. Our company provides these lenses with the material of optical glasses, crown glass and Flint glass, fused silica, sapphire, silicon and germanium. Special focusing systems are able to be designed by engineers upon request.

*Plano-Concave Lenses have a negative focal length and is typically used to cause a collimated beam to diverge as in a Galilean type beam expander or Telescope. Because the spherical aberration of the Plano-Concave is negative, it can be used to balance the aberration of other lenses.

*Materials:Grade A optical glass or Fused Silica

*Specifications:
Material: Grade A optical glass or Fused Silica
Dimension Tolerance: +0.0, -0.1mm
Center Thickness Tolerance: ±0.1mm
Paraxial Focal Length: ±2%
Surface quality: 60/40
Clear Aperture: >85%
Surface Figure: λ/4 @633nm
Centration: 3 arc minutes
Bevel: <0.25mm×45°
Coating: Upon requirement


Please feel free to contact with us.Your specific requirements will be satisfied in professional service.More information,please refer to http://www.dnd-optics.com