Product Description
This item is a Klinger (also known as Micro-Controle, and now manufactured by Newport) SL type Gimbal optic mount. The SL gimbals are characterized by massive steel construction with two mounting flats for orthogonal positioning of the tilting axes so the controls are on the right or left side of the beam path. The two planes of tilt perfectly intersect the plane of the optic (often a mirror) so adjusting azimuth or elevation results in the reflection point always being stationary on the optic axis. The elements are held in place by a spring-loaded ring. There are three small bearing points to precisely locate the optic in the main yoke, and another three within the spring-loaded clamping ring. The securing screws are not quite symmetrically placed to aid in removal of elements through the slightly larger opening.
This particular gimbal mount uses the high-sensitivity differential ”BD” micrometers. These micrometers feature both a course and a fine adjustment. Readings do not correspond to angular rotation, but they are repeatable, and graduated to 1 micron (sensitivity of setting is approximately 0.1 micron).
Specification on this particular gimbal mount include:
Optic diameter – 50mm
Optic thickness – between 1 and 12.5mm
Outside diameter – 124mm
Clear aperture of mount – 46mm
Approximate thickness of mount – 30mm (less micrometers)
Angular adjustment range – plus /minus 2 degrees
The mounts are in excellent condition – micrometers fully functional throughout range. There may be some very light surface corrosion present but it is very minimal. Photo is typical of condition. The mounts do NOT come with the adapter plate. Those are listed independently as SKU number DP251 (they are only available with the purchase of a matching type gimbal).
Location MB 79
Photo set 678