The aspheric lens focuses or collimates light without introducing spherical aberration into the transmitted wavefront. For monochromatic sources, spherical aberration is often what prevents a single spherical lens from achieving diffraction limited performance when focusing or collimating light. Thus, an aspheric lens is often the best single element solution for many applications including collimating the output of a fiber or laser diode, coupling light into a fiber, spatial filtering, or imaging light onto a detector.

These mounted aspheres have a metric thread that makes them easy to integrate into an optical setup or OEM application. The mounted aspheres are readily adapted to our SM1 series of lens tubes by using our Aspheric Lens Adapters. Mounted aspheres can be used as a drop-in replacement for multi-element microscope objective by combining the lens with our Microscope Objective Adapter Extension Tube.

To collimate light using one of our mounted aspheric lenses, orient the housing so that the externally threaded end of the mount faces the source.

• EFL: 2.95 mm
• NA: 0.27c
• CA: 4.20 mmc
• WD: 6.91 mmc
• DW: 980 nm
• Glass: ECO-550
• M: 2
• Thread: M8 x 0.5