Opto Sigma

• Both tilt controls are top mounted for ease of use
• Alternate bases for all mounting configurations
• Fully anti-backlash preloaded adjustments
• Sensitivity <20arcsec

Two precision micrometers are mounted vertically within the width of the mirror mount. They are easily reached from above without having your hand block the beam. The mirror can be adjusted in two axes of tilt. The micrometers facilitate extremely precise adjustment. Anti-backlash springs maintain the mirror in position and provide for repeatable settings.

The TopMike™ is normally supplied with a base which sets the mirror normal to the optical path. However, two other mounting options are available. A 45 degree mount enables the mount to be set at 45 degrees to the incident path. Alternatively, a small base with mounting holes to the rear enables clear and unimpeded access to the mirror surface and also has an M6 thread for post mounting.

If it is more convenient to have the micrometers protruding from either the right or left hand sides of the mount it is a simple matter to unscrew the base plate and reassemble it on its side. Threaded mounting holes are provided on all three edges of the mount for this purpose. Regardless of which base is used and whether the micrometers are to the top, or either side, the center height is always at a fixed height above the base.

The TopMike™ Mirror Mount is offered in three sizes to suit the most popular mirrors: 1 inch, 30mm and 2 inches. Note that the 1 inch and 2 inch mounts will also accept 25 and 50mm mirrors.

See the baseplate drawings for detailed hole patterns.