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 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.

Eight user selectable speeds are provided. Filter to adjacent filter time can be set from 55 to 1200msec, depending on the number and the weight of the filters mounted in the wheel. Integral shutter drivers will open the optional shutter in 10msec. The use of a direct drive stepper-motor with advanced microstepping technology and intelligent acceleration/deceleration algorithms assures the fastest possible moves for a given inertial load, while minimizing vibrations.

The Lambda 10-2 consists of a 10-position filter wheel, a rack mountable controller, a support base and mounting rods, a controller/filter wheel interface cable, parallel and serial interface cables, two drop-in filter holders, spanner wrench, and manual. Microscope adapters for most Nikon, Olympus, Zeiss, and Leica scopes can be purchased separately.

An optional liquid light guide output is available for applications requiring absolute vibration isolation, and/or spatial uniform spatial illumination. The two meter long guide mounts directly onto the output port of the wheel. Transmission through the guide is better than 70% from 375nm to 575nm. Adapters to connect the light guide to your microscope port are available as an option.

OTHER MODELS

The Lambda 10-232, was designed to remedy the problem of vignetting that may occur with a 25mm filter format in certain microscope systems. The system features a modified Lambda 10-2 controller but includes a ten position wheel that accommodates 32mm diameter filters, up to 9mm thick. The best filter to adjacent filter switching speed in this system is achieved in 75 msec. A shutter for the system is optionally available. A T-mount format is used for mounting the wheel onto your microscope. Contact Sutter Instrument for information on available T-mount adapters.

OEM WHEELS

For OEM applications, the Lambda 10-2 can readily be modified to meet your specific requirements. By utilizing the 10-2 controller to drive customized wheels, we can provide an economical solution to your OEM design specification. To date we have made custom 2,3,4,5, 10 and 12 position wheels and have designed for 50mm, 32mm and 25mm filters. Our technical staff will be happy to discuss with you special application requirements.

GETTING FASTER FILTER SWITCHING TIMES WITH MANY FILTERS INSTALLED
The Sutter filter wheel systems have always been optimized for fast switching of a lightly loaded wheel. When many thick filters are installed, the added mass requires an increase in the time required to switch from one filter to another. Switching times improve significantly with filters made on a thin substrate that do not require a thick layer of additional glass to obtain the desired blocking. Semrock® has the required coating technology to offer filters with substrates down to 2mm in thickness.

We have taken the additional step of designing a special threaded ring that Semrock can install in place of their typical plain filter cells. Filters mounted in these rings can be threaded directly into the body of our filter wheels when our standard filter cups have been removed. Semrock filters actually weigh less than the filter cup and retaining ring normally used to mount filters in the Sutter wheels. Thus, if you remove our filter cups and mount the new threaded filters directly in the wheel, even a fully loaded wheel will be able to run at speeds that previously could only be used with just 2 filters installed.

The STR Semrock filters are available in both 25mm and 32mm versions and should be purchased directly from Semrock. If you are installing these filters in a sutter wheel that has filter cups, you will need to remove the cup from the position you intend to use to mount the threaded filter. When installing the new threaded filters, you will want to use the new wrench designed for this purpose. Contact Sutter for details.

FEATURES

55 msec between adjacent filters
Parallel and serial interfaces
Simultaneous control of up to two wheels and two shutters
Dual integral shutter drivers
Linear power supply

OPTIONS

Additional wheel
Built-in shutter
Dual wheels mounted in series
Slide-in filter holders
Microscope mounting adaptors
Table-top controller box
Liquid light guide

TECHNICAL SPECIFICATIONS

Filter Diameter
1 in | 25 mm
32 mm (for Lambda 10-232)

Dimensions
Controller
16 in x 11 in x 3.5 in | 41 cm x 28 cm x 9 cm

Filter wheel
5 in x 5 in x 2.25 in | 13 cm x 13 cm x 6 cm

Weight
25 lbs | 11 kg

Electrical
120/240 Volts
50/60 Hertz power line

Lambda 10-2 CE Certificate

LB10-NW, LB10-NWS, LB10-NWIQ, and LB10-W32IQ CE Certificate

US PRICES > LAMBDA 10-2
International prices vary by country. Please contact your local distributor or Sutter Instrument for a quotation. Prices subject to change without notice.

This product has been discontinued

USER MANUAL
Lambda 10-2 Operation Manual

PRODUCT INFORMATION
Comparison Chart of Filter Wheels and Controllers