PMMA Condenser Lens

The microscope illumination needs a condenser lens. We use low-cost PMMA lenses designed for collimating LEDs. The do not produce a high quality image, my are adequate for the illumination. These are easiest to buy in bulk from AliExpress, however the link changes regularly.

Specifications

Attribute Value
Focal Length 5 mm
Outer Diameter 12.7 mm
Material PMMA