Optical filter wheel
Sutter Instrument Company
Optical Filter Changer
The Lambda 10-2 is the ideal choice for researchers whose applications are intolerant of electrical noise. The low-noise linear electronics of the controller assure that only DC voltages are present on the motor windings when the wheels are not moving.
The Lambda 10-2 is capable of independently operating up to two filter wheels and two Uniblitz shutters. The reliable, smooth operation of the Lambda 10-2 has made it highly suitable for research applications involving fluorescence microscopy, ratio imaging, spectrophotometry, and visual physiology.
The controller electronics are designed around three embedded chips: one slave for each wheel and a master for control and communication. The embedded controllers automatically detect the equipment installed and the source of the external commands, so there are no jumper wires or switches to set.
The Lambda 10-2 system can hold up to ten optical filters (25mm in diameter and up to 9mm thick) which are easily loaded through an access port on the housing. Additional filters (e.g. heat and/or neutral density filters) may be inserted manually at two other locations in the optical path. The optical ports on both sides of the unit are internally threaded as C-mounts (32 threads per inch). When mounted in an upright position, the center of the optical port can be positioned from 11cm to 53cm above the mounting surface. Slide-in filter holders are optionally available for inverted configurations. A second wheel can be added to the system with no need for additional mechanical or electronic changes.
