Micro-Adjustment Mechanism for Optical Centering Machines

Product Specifications

Technical details and manufacturing context for Micro-Adjustment Mechanism

Definition

The micro-adjustment mechanism is a critical sub-assembly within precision optical lens centering machines, responsible for achieving and maintaining exact alignment of optical lenses during the centering process. It provides nanometer-level positional control to correct minute deviations in lens orientation, ensuring optimal optical axis alignment for high-precision applications such as camera lenses, microscopes, and scientific instruments. The mechanism typically employs fine-pitch threaded components, piezoelectric actuators, or precision linear guides that translate small rotational or electrical inputs into precise linear or angular displacements. Feedback systems (often optical encoders or capacitive sensors) monitor position and provide closed-loop control to maintain the desired alignment with minimal hysteresis and backlash. Constructed from materials such as stainless steel, aluminum alloy, or ceramic, the mechanism is designed for stability and durability. Key parameters include an adjustment range of ±5 mm, a resolution of 0.001 mm, and repeatability of ±0.002 mm. It can handle axial loads from 50 to 200 N without deformation. Operating temperature ranges from -10 to 50 °C, with storage from -20 to 60 °C, and relative humidity up to 85% non-condensing. The ingress protection rating is IP40 to IP54 per IEC 60529, depending on the configuration. The aluminum alloy body is typically 6061-T6 per ASTM B221. Weight ranges from 0.5 to 2.0 kg, and typical dimensions are 80×50×30 mm. Drive types include manual micrometer or differential screws. These values are directory reference ranges and must be confirmed for the specific model and application with the legal manufacturer or supplier.

Working Principle

The micro-adjustment mechanism operates by converting small rotational or electrical inputs into precise linear or angular displacements. This is achieved through fine-pitch threaded components, piezoelectric actuators, or precision linear guides. Feedback systems, such as optical encoders or capacitive sensors, monitor the position and provide closed-loop control to maintain the desired alignment with minimal hysteresis and backlash. The mechanism ensures nanometer-level positional control, correcting minute deviations in lens orientation during the centering process.

Common Materials

Stainless steel, Aluminum alloy, Ceramic

Technical Parameters

Parameter	Typical range	Notes & selection driver
Adjustment Range	±5 mm	Total travel for fine positioning
Resolution	0.001 mm	Minimum incremental movement
Repeatability	±0.002 mm	Consistency of return to same position
Load Capacity	50–200 N	Max axial force without deformation
Operating Temperature	-10–50 °C	Performance degrades outside range
Storage Temperature	-20–60 °C	Non-operating condition
Relative Humidity	≤85 %	Non-condensing
Ingress Protection	IP40–IP54	Higher IP for dusty environmentsIEC 60529
Material	6061-T6	Aluminum alloy bodyASTM B221
Weight	0.5–2.0 kg	Depends on size and configuration
Dimension (L×W×H)	80×50×30 mm	Typical footprint
Drive Type	Manual	Micrometer screw or differential screw

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Fine-Pitch Lead Screw
Converts rotational motion into precise linear displacement

Material: Stainless steel
Piezoelectric Actuator
Provides nanometer-level positioning through voltage-controlled expansion

Material: Piezoelectric ceramic
Linear Guide Rail
Ensures smooth, low-friction linear motion with minimal play

Material: Hardened steel
Position Encoder
Measures actual position for closed-loop feedback control

Material: Glass scale with optical sensors

Manufacturers of Micro-Adjustment Mechanism

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Frequently Asked Questions

What is the adjustment range of the micro-adjustment mechanism?

The adjustment range is ±5 mm, as listed in the directory reference. This value should be confirmed for the specific model and application with the legal manufacturer or supplier.

What is the resolution of the mechanism?

The resolution is 0.001 mm, meaning the minimum incremental movement is 0.001 mm. This is a reference value and should be verified for the actual product.

What materials are used in the construction?

The mechanism can be made of stainless steel, aluminum alloy, or ceramic. The aluminum alloy body is typically 6061-T6 per ASTM B221, but this should be confirmed with the manufacturer.

What is the operating temperature range?

The operating temperature range is -10 to 50 °C, with storage from -20 to 60 °C. Performance may degrade outside this range. Verify with the manufacturer for specific conditions.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 0.5 bar
other spec:	Resolution: 0.1 μm, Repeatability: ±0.5 μm, Load Capacity: 5 kg
temperature:	-20°C to +80°C

Micro-Adjustment Mechanism

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Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

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