1.2 Mounting
1 – 7
Figure 1.3: Physical dimensions and mounting of the SR475 and
SR476 . The clear aperture is 0.120” (3 mm) for the SR475 and 0.040”
(1 mm) for the SR476.
For optimal results, use short, large-diameter mounting posts or
other sturdy optomechanical hardware to mount SR475 and SR476
Laser Shutters to appropriate surfaces. Attaching the shutter head
rigidly to a heavy, damped optical table will minimize its vibrational
e
ff
ects.
1.2.2
Thermal considerations
Like most other mechanical shutters, the performance of the SR475
and SR476 Laser Shutters are fundamentally limited by their ability
to dissipate heat. The motor can get hot when run continuously (or
nearly so), particularly in full-speed mode.
The outer case of the shutter head may get warm but should not
become too hot to touch under normal operating conditions. Solidly
mounting shutter heads to metal surfaces can assist heat sinking
SR475 and SR476 Laser Shutters
