OS 300-600 series mounts were developed to support large mirrors such as off-axis paraboloids in applications where stability of pointing is important. Tests in our laboratory give pointing stability of <1 arc sec over 72 hours at ±0.5 degrees C.
Four sizes are manufactured giving optical apertures from 250mm (12 inches) to 550 mm (21.6 inches). Micrometer movements give controlled tilt in two orthogonal directions of ±2 degrees for the larger sizes. For the OS300 mount, tilt is ±3 degrees, but a special edition of this and the OS400 is made for applications requiring ±7 degrees.
The mount base includes adjustable feet giving ±10mm height adjustment.
Applications
Mirror mounting
Mounts and Mounted Optics Specifications
Up to 550mm diameter
Two-axis Gimbal
Range: up to ±7 degrees
Sensitivity: up to ±0.2 arcseconds
High pointing stability (<1 arc sec over 72 hours at ±0.5 degrees C)
Differential micrometers for higher resolution (option)
Motorised PC controlled (option)
Alignment mirrors integrated to allow defining a pointing direction on optics such as OAP’s (option)
Vacuum compatibility (option)
Stress-free mounting by Optical Surfaces (option)
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