Thorlabs' KA1A and KA1D 3-Adjuster Ø1" Polaris KA Kinematic Mirror Mounts are designed to provide easy, high-resolution adjustment and the long-term alignment stability needed in industrial applications.
These mounts feature a monolithic flexure arm that can be actuated using the included screw and a 0.05" (1.3 mm) hex key. The monolithic flexure arm design keeps wavefront distortion on the mounted optic to a minimum while providing a strong optic retention force. The three-adjuster design provides tip and tilt plus Z-axis (optical axis) adjustment. Two-adjuster versions are also available below.
- Designed for Long-Term Stability and Minimal Temperature-Dependent Hysteresis
- Matched Actuator and Back Plate Threading Minimize Drift and Backlash
- Lightweight Aluminum Front and Back Plates
- Sapphire Adjuster Seats Prevent Wear Over Time
The KA1A mount has standard-profile hex adjusters with Ø0.07" (Ø1.8 mm) through holes that allow for actuation from the side using our precision-fit SA1 Side Hole Adjustment Tool (sold separately) or a 1/16" (1.5 mm) balldriver or hex key.
At a glance:
- 3 Side-Hole or Low-Profile Hex Adjusters
- Designed for use with Ø1" Optics
- 1/4"-100 Threaded Matched Actuator/Body Pairs
- ±4° Mechanical Angular Range (Nominal)
- ~7.7 mrad/rev Resolution
- Less than 4 µrad Deviation after Temperature Cycling
Features
- Machined from Aged 7075 Aluminum Alloy for Exceptional Tensile Strength, Stiffness, Surface Toughness, and Dimensional Stability
- Hardened Stainless Steel Ball Contacts with Sapphire Seats for Durability and Smooth Movement
- Matched Actuator and Back Plate Provide Stability and Smooth Kinematic Adjustment
- Extensive Testing Guarantees Less than 4 μrad Deviation after 15 °C Temperature Cycling (See Test Data Tab for Details)
- Specialty Anodized Frames and Passivated Stainless Steel Adjusters Designed for Vacuum and High-Power Laser Cavity Applications
- Patented Optic Bore Design with Monolithic Flexure Arm (US Patent 10,101,559)
- Patent Pending Spring Design Reduces Contamination
- Mounting Holes Enable Left-Handed or Right-Handed Operation
- Custom Mount Configurations are Available