NEWPORT AC-2A Lens Optical Mount Lab Optomechanics 17.8-57.1MM

( Brand: Newport ), ( Manufacturer Part Number: AC-2A ), ( Part Type: Len Mount ), ( Unit Type: Unit ), ( Country Of Origin: United States ), ( Intended Use/discipline: Physics Labs, Optical Research, Laser Engineering, Photonics Prototyping, Metrology )

Review NEWPORT Variable Size Lens Optical Mount 17.8-57.1mm Lab Optomechanics

The **Newport AC-2A Lens Optical Mount** is a precision-engineered, versatile optical mount designed for high-accuracy applications in laboratory and industrial optomechanics, offering unmatched flexibility for mounting and aligning lenses with exceptional stability. Part of Newport s renowned line of optical components, this mount features a robust, all-metal construction with a **17.8 57.1mm (0.7 2.25 inch) diameter range**, accommodating a wide variety of standard and custom lenses, including convex, concave, and achromatic elements. Its **2-inch (50.8mm) optical flat baseplate** ensures a stable foundation for precise alignment, while the **adjustable lens cell** allows for fine-tuning of axial and lateral positioning with minimal backlash, critical for applications requiring sub-micron precision. The mount s **threaded 1-inch (25.4mm) optical flat base** integrates seamlessly with Newport s extensive range of kinematic mounts, translation stages, and kinematic bases, enabling seamless integration into complex optical systems. Constructed from high-quality **anodized aluminum**, the AC-2A is designed to resist corrosion and maintain dimensional stability across a broad temperature range, making it ideal for demanding environments such as laser systems, microscopy, spectroscopy, and fiber optics. Its **quick-release mechanism** simplifies lens changes without compromising alignment, while the **precision-machined lens cell** ensures consistent centering and minimal aberrations. Whether used in research laboratories, manufacturing automation, or optical testing facilities, the Newport AC-2A Lens Optical Mount delivers the reliability and precision required for critical optical experiments and industrial applications.

The Newport AC-2A lens optical mount (17.8 57.1 mm diameter, Lab Optomechanics) is a versatile component for optical systems, particularly in research, manufacturing, and precision alignment applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Precision Alignment and Adjustability**

The AC-2A is designed for fine optical alignment, offering three-axis (X, Y, Z) and rotational adjustments. This makes it ideal for applications requiring precise positioning of lenses, windows, or other optical elements. The micrometer knobs allow for incremental adjustments, which is critical in high-precision setups.

2. **Durability and Rigidity**

Constructed from high-quality materials (likely aluminum or stainless steel), the mount is robust and resistant to wear. The rigid design minimizes vibration and drift, which is essential in long-term experiments or high-stability environments.

3. **Compatibility with Standard Optical Components**

The 17.8 57.1 mm diameter range covers a broad spectrum of optical elements, including lenses, beam splitters, and filters. This versatility makes it suitable for a wide range of applications, from basic alignment to complex optical assemblies.

4. **Modular and Customizable**

The mount can be integrated into larger optical tables or mounts using standard optical hardware (e.g., kinematic mounts, post mounts, or breadboard systems). It often includes threaded holes or slots for additional mounting options, allowing for custom configurations.

5. **Repeatability**

The micrometer adjustments provide consistent positioning, which is valuable in automated or repeatable experiments where reproducibility is key.

6. **Compatibility with Optical Tables**

The design is optimized for use on optical tables or breadboards, where stability and minimal thermal drift are priorities. The base is typically flat and heavy enough to resist movement during adjustments.

7. **Cost-Effective for Precision Work**

While not the cheapest option, it offers a balance between affordability and performance for research and industrial applications. It is often more cost-effective than custom-built solutions.

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### **Cons**

1. **Limited Diameter Range**

The 17.8 57.1 mm diameter range may not accommodate very large optical elements. For larger components (e.g., mirrors or lenses exceeding 57 mm), alternative mounts (e.g., larger kinematic mounts or custom holders) would be required.

2. **Manual Adjustment Only**

The mount relies on manual micrometer adjustments, which can be time-consuming for fine-tuning. In applications requiring rapid or automated adjustments (e.g., high-speed alignment systems), motorized or piezoelectric actuators may be preferable.

3. **Potential for Thermal Drift**

Like most mechanical mounts, the AC-2A can experience slight thermal drift over time, especially in environments with significant temperature fluctuations. This may require periodic re-alignment in long-duration experiments.

4. **Weight Limitations**

While sturdy, the mount may not support very heavy optical components without additional reinforcement. For heavy lenses or mirrors, a heavier base or additional mounting hardware may be necessary.

5. **Learning Curve for Optimal Use**

Achieving the best performance requires familiarity with optical alignment techniques. Users unfamiliar with precision optics may struggle to maximize the mount s capabilities, particularly in minimizing backlash or ensuring squareness.

6. **Compatibility with Non-Standard Elements**

Some optical components (e.g., non-standard threaded lenses or custom mounts) may not fit seamlessly into the AC-2A s design. Additional adapters or custom modifications might be needed.

7. **Wear Over Time**

Frequent adjustments or heavy use could lead to wear on the micrometer knobs or adjustment screws, potentially affecting precision. Regular maintenance may be required to ensure optimal performance.

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### **Conclusion**

The Newport AC-2A lens optical mount is a highly capable and reliable tool for applications demanding precision alignment in optical systems. Its strengths lie in its adjustability, durability, and compatibility with standard optical components, making it a popular choice for research labs, manufacturing, and industrial settings. However, its limitations such as the restricted diameter range, manual operation, and potential thermal drift may necessitate supplementary hardware or alternative solutions in certain use cases.

- Basic to intermediate optical alignment tasks.

- Research applications where fine adjustments are critical.

- Environments with stable temperature and minimal vibration.

For applications requiring automated adjustments, larger components, or extreme precision, complementary tools (e.g., motorized mounts, piezoelectric actuators, or custom mounts) may be necessary.

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### **Recommendation**

- You need a versatile, precision optical mount for standard-sized components (17.8 57.1 mm).

- Your application involves manual alignment in a controlled environment (e.g., lab bench, optical table).

- You prioritize durability and repeatability without requiring automation.

- You are working within a budget that allows for additional accessories (e.g., adapters, anti-vibration pads) if needed.

- You require mounts for larger or non-standard optical elements.

- Your application demands automated or high-speed adjustments (e.g., laser systems, adaptive optics).

- You operate in environments with extreme temperature variations or high vibration levels.

- You need a solution that integrates seamlessly with existing automated systems (e.g., motorized stages).

For most general-purpose optical alignment tasks, the AC-2A is an excellent choice due to its balance of precision, adjustability, and compatibility. Pair it with complementary hardware (e.g., optical tables, anti-vibration pads) to enhance performance in your specific setup.

Details:

Product Features Key Features: Adjustable Three-Jaw Design: Thumbscrew-controlled support arms adjust individually to securely clamp optics of various shapes and sizes. Versatile Diameter Range: Dynamically accommodates lenses, filters, and ranging from 17.8mm to 57.1 in diameter. Perfect for laser research, physics laboratories, and custom optical prototyping systems. Please review all images for condition and included components.

Compatibility: Universally compatible with standard optical breadboards and posts using Newport post-mounting hardware. Note that some are manufacturer-provided and may not precisely represent the items color, size, or style. Premium Construction: Robust aluminum body with a matte black anodized finish to minimize stray light reflections in sensitive laser setups. Holds optics between 17.8mm and 57.1.

Condition: Used: Pulled from a working environment. Designed for demanding laboratory optomechanics setups, this adjustable-radius chuck mount allows users to safely secure and position optical elements ranging from 17.8mm 57.1 in diameter. Newport AC-2A Variable Size Lens Optical Mount 17.8-57.1mm Lab Optomechanics, This is a genuine in excellent physical and functional condition. Featuring three independently adjustable thumbscrew support arms with V-notch jaws, it ensures a highly stable, damage-free grip on lenses, filters, mirrors, or .

V-Groove Tips: The inward-facing tips of the jaws feature V-groove profiles to self-center and delicately grip cylindrical or circular optical components.

part #: ac2a price

• $49.89

specifications microscopepartzo:

• brand: Newport
• mpn: Ac-2a
• part type: Len Mount
• unit type: Unit
• country of origin: United States
• intended use/discipline: Physics Labs, Optical Research, Laser Engineering, Photonics Prototyping, Metrology

general microscopepartzo:

• Medical/Lab Equipment Attachments Accessories > Microscope Parts Accessories > Other Microscope Parts Accessories
• condition: Used

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• quantity: 1
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• started: May 18, 2026

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