Gimbal movement with kinematic stability
Position optics in tight locations
Patented Clear Edge Option
Corner Mirror Mounts hold the mirror in a unique location near the edge of the frame. In this location, not only is there a clearer beam path but also gimbal movement is possible. How can you get gimbal movement from this basic design? With a corner mount, the center of the mirror is intentionally located at the xy intersection of the pitch and yaw adjusters, i.e., at the virtual fourth point of the square fromed by the ball points of the three actuators.
To achieve gimbal movement, two adjustment screws must be actuated the exact same distance. For gimbal pitch adjustment, the adjuster normally used for yaw adjustment must be actuated along with the corner adjuster the exact same distance. For gimbal yaw adjustment, the adjuster normally used for pitch adjustment must be actuated along with the corner adjuster the exact same distance. In this way, the mirror is being rotated about two virtual axes that intersect at the center of the optic, aka gimbal movement. Adjust one actuator at a time and the mount acts as a standard kinematic optical mount. Adjust all three actuators to translate the optic.
These Corner Mounts only look conventional. The combination of our proprietary precision screws and bushings, sapphire seats, and extra thick frames gives you superior stability and precise repeatable adjustment. We offer these mounts in with a wide range of optic mounting apertures for 1/2, 1, or 2 in optic diameters. For pure translation, simply turn all knobs the same amount or for applications when translation is less important, adjust the tilt with just one knob.
Model |
Optic Diameter [in. (mm)] |
Optical Axis Height [in. (mm)] |
Sensitivity (arc sec) |
Angular Range (°) | Thread Type | Drive Type |
---|---|---|---|---|---|---|
9808 | 0.5 (12.7) | 2.0 (50.8) | 4.4 | ±4 | 8-32 (M4) CLR | Knob |
9809NF | 1.0 (25.4) | 2.0 (50.8) | 4.4 | ±4 | 8-32 (M4) CLR | Knob |
9809-K | 1.0 (25.4) | 2.0 (50.8) | 4.4 | ±4 | 8-32 (M4) CLR | Allen-Key |
9852 | 2.0 (50.8) | 2.0 (50.8) | 3.6 | ±4 | 8-32 (M4) CLR | Knob |
9808 | 9809NF (9809-K) | 9852 (-L) |