Lambda
10-B
Optical Filter Changer
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 40msec between
adjacent filters. When used with 3 position wheels, the Lambda 10-B achieves
switching times of less than 33msec. 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 40msec with our
standard 25mm filter wheel as well as our newer, high-speed
32mm 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. The drive
uses switching mode current
regulation, which is more economical than the linear supply of the Lambda 10-2.
Although this is not a problem with most imaging applications, the Lambda 10-2
may be more appropriate for systems where electrophysiology is performed.
Both serial and USB
input ports are provided to allow complete and easy control
from a remote computer. The serial port accepts RS232 level signals through
a DB-9 connector. USB input is made through a standard connector and can
be directly
connected to a USB port. The Lambda 10-B's USB port interface supports multiple
USB devices simultaneously, allowing a user to run in tandem as many units
as USB ports. The universal power supply will automatically switch to accommodate
local line voltage.
Options
The basic system for
the Lambda 10-B includes our popular 10 position 25mm filter
wheel. A significant advantage
of the Lambda 10-B controller is that
it can accommodate
a variety of Sutter filter wheels to suit your particular requirements.
The controller will automatically detect and determine
the model of wheel installed
and adjust
for the number of positions and filter size.
Our 32mm wheel was designed
to remedy the problem of vignetting that may occur with a
25mm filter format in certain microscope systems. This
32mm
wheel can
achieve the same 40ms switching times as achieved on our 25mm version.
For applications requiring a larger aperture opening, there is a 5
position 50mm
filter wheel.
If additional speed is required, we offer a high-speed, 3 position
25mm wheel which is capable of achieving 31ms switching times
between adjacent
filters.
An optional liquid light guide is available for applications requiring
absolute vibration isolation, and/or spatial uniformity independent
of wavelength.
Shutters are available for the 25mm and 32mm wheels.
Features
• 40 msec between
adjacent filters (10 position wheel)
• 31 msec between adjacent
filters (3 position wheel)
• Serial and USB interfaces
• Can control a variety
of 25mm, 32mm and 50mm wheels
• Controls one wheel
and one optional shutter
• Command set compatible
with Lambda 10-C
• Chopper drives
• Universal power supply
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