Precision Optical Lens Mounting Ring

Product Specifications

Technical details and manufacturing context for Precision Optical Lens Mounting Ring

Definition

A precision optical lens mounting ring is a mechanical component used to position and retain lens elements within optical instruments and photographic equipment. In industrial manufacturing, these rings ensure precise optical alignment and mechanical stability in complex lens assemblies. They serve as interface components between lens elements and instrument housings in B2B supply chains for optical manufacturers. Their dimensional accuracy directly impacts optical performance and instrument reliability.

The ring provides radial constraint and axial positioning through precise dimensional tolerances and surface contact. It is available in materials such as Aluminum Alloy 6061-T6, Stainless Steel 316L, and Brass C36000. Key parameters include inner diameter (25–80 mm), outer diameter (35–100 mm), thickness (3–10 mm), surface roughness (Ra 0.4–0.8 per ISO 1302), concentricity tolerance (±0.01 μm per ISO 1101), material hardness (HRC 28–32 per ASTM E18), operating temperature (-40 to 85 °C), material grade (304/316L per ASTM A276), weight (0.05–0.5 kg), thread pitch (0.5–1.5 mm per ISO 68-1), and surface treatment (black anodized per MIL-A-8625).

These values are reference ranges and must be verified for the specific model and application. Standards listed are procurement references, not proof of certification. Buyers should confirm compliance with the legal manufacturer or supplier. The ring's performance depends on correct selection of material, dimensions, and tolerances. Proper installation and maintenance are essential to avoid misalignment or loosening. Failure signs include visible wear, corrosion, or loss of optical performance. The ring is not a standalone product; it is designed for integration into larger optical assemblies.

Working Principle

The mounting ring mechanically interfaces with the lens edge and the instrument housing. It provides radial constraint by fitting closely around the lens circumference and axial positioning through a precise thickness that seats against a shoulder or retaining feature. The ring's inner diameter is machined to a tolerance that ensures a snug fit without stressing the lens. Surface finish and concentricity are critical to maintain optical alignment. The ring is secured by threads or press-fit, depending on design. Thermal expansion and material hardness affect long-term stability. Proper torque during installation prevents distortion. The ring's performance is verified by measuring dimensions and alignment after assembly.

Common Materials

Aluminum Alloy 6061-T6, Stainless Steel 316L, Brass C36000

Technical Parameters

Parameter	Typical range	Notes & selection driver
Inner DiameterRequired	25–80 mm	Precision bore diameter for lens interface
Outer DiameterRequired	35–100 mm	External dimension for housing interface
ThicknessRequired	3–10 mm	Axial dimension of the ring
Surface RoughnessRequired	Ra 0.4–0.8 Ra	Contact surface finish qualityISO 1302
Concentricity ToleranceRequired	±0.01 μm	Maximum radial deviation from true centerISO 1101
Material Hardness	HRC 28–32 HRB	Material hardness for durabilityASTM E18
Operating Temperature	-40–85 °C	Thermal stability
Material Grade	304/316L	Corrosion resistanceASTM A276
Weight	0.05–0.5 kg	Depends on size
Thread Pitch	0.5–1.5 mm	For mounting threadsISO 68-1
Surface Treatment	Black anodized	Reduces reflectionMIL-A-8625

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

Main Ring Body Part
Primary structural element providing mechanical interface

Material: Aluminum Alloy/Stainless Steel/Brass
Lens Contact Surface Part
Precision-machined surface interfacing with lens edge

Material: Same as main body
Anti-Reflective Coating Optional Part
Optical coating to minimize stray light reflection

Material: Magnesium Fluoride

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Precision Optical Lens Mounting Ring.

Manufacturers of Precision Optical Lens Mounting Ring

Manufacturer profiles associated with Precision Optical Lens Mounting Ring.

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Frequently Asked Questions

What materials are available for this mounting ring?

The ring is available in Aluminum Alloy 6061-T6, Stainless Steel 316L, and Brass C36000. Material selection depends on application requirements such as weight, corrosion resistance, and thermal stability.

What are the key dimensional parameters?

Key parameters include inner diameter (25–80 mm), outer diameter (35–100 mm), and thickness (3–10 mm). These are reference ranges; exact values must be confirmed for the specific model.

What standards apply to this component?

Relevant standards include ISO 1302 for surface roughness, ISO 1101 for concentricity, ASTM E18 for hardness, ASTM A276 for material grade, ISO 68-1 for thread pitch, and MIL-A-8625 for surface treatment. These are procurement references.

How should I verify the ring's suitability for my application?

Verify model-specific dimensions, tolerances, and material properties with the legal manufacturer or supplier. Confirm that the ring meets your optical alignment and mechanical stability requirements.

Data Basis

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

Preliminary Technical Classification

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pressure:	0 to 1.5 bar (22 psi) max
other spec:	Vibration tolerance: 5-2000 Hz at 10g max, Cleanroom assembly required (ISO Class 5 or better)
temperature:	-40°C to +120°C