Chongfan Technology
Products
Product
Polaris® KA Series Aluminum Low-Deformation Ø1/2-Inch Mirror Mount
Classification：
Detail
Parameters
Technical Data
Characteristics
- Made from age‑hardened 7075 aluminum alloy, it exhibits excellent tensile strength, stiffness, surface toughness, and dimensional stability.
- Spring-loaded precision locating three-point contact tabs can secure optical components.
- The contact structure between the hardened stainless steel ball and the sapphire washer is durable, enabling smooth motion.
- The drive’s threads match those of the main body, ensuring smooth adjustment.
- Extensive testing ensures that, after temperature cycling, the offset remains below 4 µrad (for details, see the thermal test data label).
- Specially engineered anodized aluminum frames and passivated stainless steel adjusters are designed for vacuum and high-power laser cavity applications.
- For custom installation and configuration, please contact: Technical Sales
The Polaris® KA low‑distortion optical adjustment mount (U.S. Patent No. 9,599,786) delivers long‑term alignment stability while minimizing optical surface deformation induced by the mount itself. The mounts featured on this page are designed for Ø1/2‑inch optical components.
Fixed optical component
Compared with standard designs that use fixed screws or retaining rings, this optical mount features a three-point contact mounting plate for securing optical components, thereby minimizing optical distortion. Precision positioning springs between the optical element and the retaining ring eliminate bending moments on the optic and ensure that the applied force remains constant even under large temperature variations. For more details, please refer to the Low‑Distortion and Optical Component Mounting tabs.
Polaris optical component mounting holes are precision‑machined to ensure optimal beam‑alignment stability under varying environmental conditions, such as temperature fluctuations, transport shocks, and vibrations. Each kinematic mount is designed for Ø1/2‑inch optical components with diameters within the specified range of +0/−0.005 inches; using components outside this range may result in reduced performance. For mounts compatible with other optical component sizes, please contact us. Technical Sales 。
Design
Polaris KA-series adjustment mounts are crafted from age‑hardened, lightweight 7075 aluminum alloy and feature precision‑matched adjusters equipped with ball‑contact points and sapphire washers, delivering smooth, precise motion. As indicated on the test data label, these mounts have undergone extensive testing to ensure superior performance. Polaris’s design addresses all common sources of beam misalignment; for more details, please refer to the Design Features tab.
Install the mounting post
These PolarisKA adjustment mounts feature #8 (M4) countersunk holes for mounting posts. For additional guidance on mounting configurations, please refer to the Usage Instructions tab.
All PolarisKA adjustment mounts are compatible with cleanroom and vacuum applications, with a maximum bake-out and operating temperature of 80 °C. For details, please refer to the Specifications tab and the Design Features tab.
The aluminum front and rear plates of the PolarisKA adjustment mount undergo acid etching, a specialized 5 µm-thick anodizing layer, and a double‑layer nickel seal, followed by boiling in reverse osmosis deionized (RODI) water. This process produces a clean, smooth, thin yet exceptionally hard, non‑porous all‑metal surface with a sealed oxide layer, making it suitable for low‑outgassing laser systems and cleanroom assembly applications. Some vacuum chamber manufacturers also employ this same surface treatment to prevent the formation of native oxide on bare aluminum surfaces. Compared with standard anodizing, this treatment delivers superior results. For PolarisKA adjustment mounts, we recommend a maximum bake temperature of no more than 80 °C. For detailed information, please refer to the specification label.
To further reduce the outgassing rate in ultra-high vacuum (UHV) systems, we can supply chemically cleaned 6061‑T6 aluminum adjustment mounts, packaged in double vacuum bags, tailored to your requirements. For more details, please contact us. Technical Sales . Due to reduced surface hardness, these adjustment mounts will no longer exhibit the same surface toughness, leading to accelerated wear of the lens mounting grooves and the adjuster threads. Such mounts also require careful handling and storage to prevent surface contamination and the formation of an intrinsic oxide layer. The maximum bake‑out temperature for these custom‑made adjustment mounts does not exceed 120 °C.
To achieve the lowest outgassing rate in UHV systems, consider using stainless steel. Polaris Series , with a maximum baking temperature not exceeding 200 °C.
Polaris® KA Low-Deformation Optical Adjustment Mount, Ø1/2 inch, with 3 Adjusters
● Low-deformation adjustment mount, with 3 adjusters, for Ø1/2-inch optical components a
● Hexagonal drive design
● 100 TPI driver matches the main body’s thread
● Low-profile or standard-profile regulator
● The deviation after temperature cycling is less than 4 µrad (see the test data label)
These three‑axis PolarisKA optical adjustment mounts, with a 1/2‑inch diameter, feature an integrated aluminum mount‑and‑adjuster design that minimizes deformation of optical components and ensures long-term stability. Each mount is equipped with a three‑point contact interface for mounting optical elements. A precision‑positioned, spring‑loaded three‑point contact system secures the optic, while a retaining ring with pre‑calibrated adjustment stops helps maintain the correct mounting torque. For more details, please refer to the Optical Component Mounting and Low‑Deformation sections.
For installation in tight spaces, the KA05FD features a low-profile hex driver and is 0.33 inches (8.3 mm) shorter than the KA05FA regulator.
The KA05FA adjustment mount features standard hexagonal adjusters with two Ø0.07‑inch (Ø1.8 mm) through-holes, enabling side‑driven actuation with our precisely matched SA1 side‑hole adjusters (sold separately) or with a 1/16‑inch (1.5 mm) ball‑head screwdriver or hex key. Each adjuster also includes a 5/64‑inch (2.0 mm) hex socket, which can be tightened using the hex socket at the end of the SA1 or with the HKTS‑5/64 hex wrench (sold separately). This mount’s adjusters can further be locked with the LN19100H locking nut (sold separately). For applications requiring frequent adjustments, simply tighten the lock nut lightly to a torque of approximately 4 to 8 oz‑in (0.03 to 0.06 N·m). For long‑term stability, we recommend tightening to 24 oz‑in, which can be achieved using our TW6 preset torque wrench (sold separately).
Two #8 (M4) countersunk holes at the 90° position can be used to mount a post. Thanks to the shallow design of these countersinks, the included low-profile 8-32 and M4 cap screws allow the kinematic mount to be attached to the post. Please note that the 8-32 cap screw reduces the clear aperture to 0.368 inches (9.3 mm), while the M4 cap screw reduces it to 0.34 inches (8.6 mm). If you are concerned about the impact of the cap screws on the clear aperture, please contact… Technical Sales Explore alternative mounting options. 8-32 cap screws require a 5/64-inch hex key, while M4 cap screws require a 2.5 mm hex key. For custom mounting configurations, each countersunk hole is equipped with Ø2 mm locating pins on both sides to ensure precise positioning and installation angles. We recommend using standard DIN 7‑M6 locating pins; for details, please click the file icon below () to view the PDF drawing. Locating pins are sold in packs of 100 at the bottom of the page.
a. Please note that these adjustment mounts are designed to accommodate Ø1/2-inch optical components with a tolerance of +0/-0.005 inches.
Polaris® KA Low-Deformation Optical Mount, Ø1/2 inch, with 2 Adjusters
● Low-deformation adjustment mount, with 2 adjusters, for Ø1/2-inch optical components a
● Hexagonal drive design
● 100 TPI driver matches the main body’s thread
● Low-profile or standard-profile regulator
● The deviation after temperature cycling is less than 4 µrad (please see Test data Tag)
These two‑adjuster PolarisKA optical adjustment mounts are similar to the standard three‑adjuster version sold above, but they replace the third adjuster with a hardened stainless‑steel ball. Featuring an integrated aluminum adjuster/body design, they offer greater durability than standard mounts. The PolarisKA two‑adjuster mount ships with a precision‑positioning retaining spring clip and a retaining ring (SM05KRRS40). These accessories are available separately below for replacement purposes.
For installation in tight spaces, the KA05FB adjustment mount features a low-profile hex driver and is 0.33 inches (8.3 mm) shorter than the KA05F’s adjuster.
The KA05F adjustment mount features standard hexagonal adjusters, each with two Ø0.07‑inch (Ø1.8 mm) through-holes, and can be operated using our precisely matched SA1 side‑hole adjusters (sold separately) or a 1/16‑inch (1.5 mm) ball‑head screwdriver or hex key for side‑drive operation. Each adjuster also includes a 5/64‑inch (2.0 mm) hex socket, which can be tightened with the hex key provided on the SA1 end or with the HKTS‑5/64 hex wrench (sold separately). Additionally, the adjusters on this mount can be locked using the LN19100H locking nut (sold separately). For applications requiring frequent adjustments, simply tighten the lock nut lightly to a torque of approximately 4 to 8 oz‑in (0.03 to 0.06 N·m). For long-term stability, we recommend tightening to 24 oz‑in, which can be achieved using our TW6 preset torque wrench (sold separately).
Two #8 (M4) countersunk holes at the 90° position can be used to mount a post. Thanks to the shallow design of these countersinks, the included low-profile 8-32 and M4 cap screws allow the kinematic mount to be attached to the post. Please note that the 8-32 cap screw reduces the clear aperture to 0.368 inches (9.3 mm), while the M4 cap screw reduces it to 0.34 inches (8.6 mm). If you are concerned about the impact of the cap screws on the clear aperture, please contact… Technical Sales Explore alternative installation options. 8-32 cap screws require a 5/64-inch hex key, while M4 cap screws require a 2.5 mm hex key.
a. Please note that these adjustment mounts are designed to accommodate Ø1/2-inch optical components with a tolerance of +0/-0.005 inches. 
Previous
Previous
Other Products
I want to consult
Thank you for visiting the official website of Chongfan Technology. If you have cooperation intentions or suggestions, please contact us through the following methods, and we will reply as soon as possible, thank you!
Address: Room 403, Building 6, Phase III of R&D, No. 36 Xiyong Avenue, High tech Zone, Chongqing, China.
Telephone: +86-13658337211
E-mail: Sales@cfkeji.net
Website: www.cfkeji.net
Mobile Version
