Specifications:

Material ...................................          BK7 optical glass

Surface Irregularity ................................l/2 in y direction

.....................           .. l/4 per centimeter in x direction, at 632.8nm

Dimension Tolerance ......................................... ¡À0.2mm

Paraxial Focal Length ............................................ ¡À2% Centration .................................................     . 3 arc minutes

 Clear Aperture ...................................................... >80%

 Surface Quality ..............................           60-40 S/D

Protective Bevel

ROD LENSES

Specifications:

Material                                K ¡¢F¡¢S  optical glass

Dimension Tolerance ......................................... ¡À0.02mm   

Diameter..................................... .........           max 50mm

 min 1mm

Surface Quality ..............................           60-40 S/D

Clear Aperture ...................................................... >80%