Optical filter wheel changer Lambda 10-B

The Lambda 10-B is a high performance, microprocessor-controlled filter wheel for imaging applications requiring a single filter wheel. The latest release in Sutter's optical filter changer product line, the Lambda 10-B, uses recent advances in motor technology to achieve switching times of 40 msec between adjacent filters. When used with our high-speed 4 position wheels, the Lambda 10-B achieves switching times of less than 31 msec. It features both USB and serial port interfaces as well as keypad control. The Lambda 10-B is a low-cost alternative to the Lambda 10-2 and ideal for imaging applications requiring a single filter wheel. The Lambda 10-B can operate with switching times as brief as 4 msec with our standard 25 mm filter wheel as well as our 32 mm wheel. The user can select from seven speeds, allowing the speed to be adjusted in accordance with the load of the wheel. Except for the 4 position compact wheel, our filter wheels employ a direct drive system: a feature that prevents belt slippage or backlash. An optional shutter installation is also available. Filter selection can be made directly from the keypad or from a computer via the serial or USB port. The Lambda 10-B controller determines the shortest route to the selected filter and an acceleration/deceleration algorithm minimizes vibrations during the movement of the wheel. The current filter position is displayed on the front panel. Internal sensors monitor the position of the filter wheel to insure that the correct filter is in place.