Sutter Instrument Lambda 10-3, Руководство по эксплуатации

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LAMBDA 10-3 OPERATION MANUAL – REV. 3.03 (20110829)
10
Neutral Density Mode:
In this mode the user selects the extent to which the shutter
opens. When used with the Sutter Instrument light guide system (LLG), this allows the
light output from the light guide to be attenuated without changing its wavelength or
spatial distribution. The value for opening can be selected in steps from 1 (no opening) to
144 (complete opening).
1.4.3 1.4.3 1.4.3 1.4.3 Special Considerations Special Considerations Special Considerations Special Considerations
The new step motor-based SmartShutter is made from a handful of parts, any of which can
be replaced for service. The SmartShutter can open or close in about 8 msec...., and the
mechanism is robust. The shutter blade is stopped by action of the motor rather than by
mechanical stops that might fail. Because the motion profile of the shutter is controlled by a
microprocessor, the motion can be optimized for speed or for smoothness. The
microprocessor-based controller also offers additional functions and modes of operation. If
the electronics fail, the motor can be disconnected and the blade set open or closed by hand.
1.4.3.1 Mounting
When a 25 mm SmartShutter is to be mounted to a Lambda 10 filter wheel, a special version
of the SmartShutter is supplied which will attach directly to the slide-in filter housing. The
C-mount threads in the SmartShutter housing will accept the standard Sutter microscope
adapters.
When a 35 mm SmartShutter is mounted to a 32 mm Lambda 10 series filter wheel, a special
adapter threads into the filter wheel T-mount, on to which the SmartShutter is mounted.
The 35 mm SmartShutter has a receptacle for the flange on the end of this T-mount tube and
this allows the SmartShutter to mount to the flange on the end of the tube in many different
orientations. On the other side of the SmartShutter a similar rotating mount accepts an
adapter that is used to couple to our standard microscope adapters. It is possible to install a
T-mount instead, if desired.
1.4.3.2 Opening and Closing Times
The SmartShutter has a typical time to open of 8 milliseconds, from the point a complete
command or TTL signal is received. The time to close is also eight milliseconds. This is true
for both the 25 mm and the 35 mm versions operating in the fast mode. Note that the
controller will not accept new commands or TTL pulses in the FAST mode for about 12 msec
after a command has been received. The additional time is required for display changes and
other overhead.