Polaris ø19 mm Mirror Mount; 2 Hex Adjusters with Side Holes

The Polaris ø19 mm Mirror Mount, model POLARIS-K19S4, is a high-quality kinematic optic mount manufactured by Thorlabs, a renowned brand in the field of optics and photonics. This mount is designed to securely hold circular optical components with a diameter of up to 19 mm, providing precise tip-tilt adjustments for optimal optical alignment.

The mount is constructed from stainless steel, ensuring durability and resistance to corrosion. It features two hex adjusters with side holes, allowing for precise manual adjustments. The adjusters have a thread of 3/16 in (4.762 mm) and an adjustment per revolution of 11, providing a fine tilt angular range of 4 degrees. This enables accurate positioning and alignment of optical components.

The POLARIS-K19S4 mount is compatible with imperial measurement systems and is designed to accommodate 8-32 screws for post mounting. It offers a high pointing stability of 5 µrad, ensuring stable and reliable optical performance. The mount is also vacuum compatible, with a vacuum compatibility torr of 1e-09, making it suitable for high-vacuum applications.

The mount's optical shape is circular, and the optics diameter size ranges from 19 to 19 mm. The optic thickness must be at least 2.032 mm. The mount does not include lock nuts, but the adjusters' threads are designed to securely hold the optical components in place.