Variable Wheels Attenuators

Computer Software for Motorized Attenuator is designed to control motorized attenuator unit with one of our stepper motor controllers: 980-0030F-USB or 980-0030-RS232.

Closed Variable Wheel Attenuator 990-0704 is used when photodetectors with high sensitivity (e.g. CCD, photomultiplier, etc.) are used and it is necessary to eliminate the side background lighting fully.

Variable Wheel Attenuator 990-0604 is a basic model with 4 filter-set wheels. Each wheel contains 4 filter mounts each of Ø20 mm with a clear aperture of Ø18 mm.

A choice of filters is available for our standard 4-wheel attenuators, allowing 256 relative positions of wheels, rendering 99 different transmission values, among which you can find a very close match to the desired value.

Obsolete - last pieces available. The holder of 1 inch filters 990-0415 allows fixation of up to 5 filters into 1 inch optics ring holders. The thickness of optical filters (or any other optical elements) to be held is from 0.5 mm to 8.0 mm.

Motorized Variable Two Wheel Attenuator 991-0602 consists of two filter wheels. Each wheel contains eight filter mounts of either Ø20 or Ø25,4 mm with a clear aperture of either Ø18 or Ø23 mm.

Motorized Closed Variable Two Wheel Attenuator 991-0702 consists of two filter wheels. Each wheel contains eight filter mounts of either Ø20 or Ø25,4 mm with a clear aperture of either Ø18 or Ø23 mm.