Product Code:
Optical-P0061
Description:
Adjustable Slit Circular blacked metal screen, 75 mm diameter with 12.5 mm central
aperture. A
screw controlled, spring loaded precision slit is mounted on one side of
the disc, the adjustment drive being arranged so that the slit can not
be over
tightened. The slit has levelled jaws with brass, dovetail section
slides, & provides a maximum slit opening of 4 mm approx. with a
useful length of 10
to 12 mm. Mounted on a standard 6 mm diameter brass rod, the optical
centre height is 80 mm approx..