Grating Adapter Selection Guide:
|Item #||Grating |
|KGM20||<20 mm||12 mm (Min)||4 - 8 mm|
|KGM40||20 - 40 mm||18 mm (Min)||5 - 10 mm|
|KGM60||40 - 60 mm||32 mm (Min)||6 - 12 mm|
This simple, versatile family of grating adapters is compatible with all Ø1", front-loading, unthreaded mirror mounts, including the POLARIS-K1 ultra-stable kinematic mirror mount. Rectangular optics up to 60 mm tall may be mounted in the appropriate model (see table above); please note that for optics exactly 20 mm tall the KGM40 must be used. Gratings and rectangular mirrors can be accommodated by simply sliding the upper and lower clamps on the adapter to match the desired optic height. These clamps slide in machined grooves and are tightened into place with two M3 screws located on the back side of the mount. The 3-point, kinematic mounting mechanism consists of two bottom lines of contact and a top flat-spring contact as shown in the photo to the right. An additional nylon-tipped, locking setscrew located on the top clamp provides added holding force.