Eyepieces, Lenses

Part Number	Description / PDF	Quantity
23FM08L Panasonic	FOCAL LENGTH 8MM W/LOCKS	0
26800B-444 Aven	EYEPIECE 5X	0
13FM04T Panasonic	FOCAL LENGTH 4 MM LOW RESOLUTION	0
26800B-446 Aven	EYEPIECE 5X	1
23FM50 Panasonic	FOCAL LENGTH 50MM	0
502969-3 TE Connectivity AMP Connectors	EYEPIECE 10X - 20X	0
23FM25 Panasonic	FOCAL LENGTH 25MM	0
23FM25L Panasonic	FOCAL LENGTH 25MM W/LOCKS	0

Eyepieces, Lenses

1. Overview

Optical inspection equipment eyepieces and lenses are critical components in precision measurement and quality control systems. These optical elements enable magnification, illumination, and image acquisition for industrial and scientific applications. Modern advancements in optical design, materials, and coating technologies have significantly improved resolution, durability, and adaptability in complex environments.

2. Main Types & Functional Classification

Type	Functional Features	Application Examples
Huygens Eyepieces	Simple design with two plano-convex lenses, chromatic aberration correction	Basic microscopy and educational equipment
Ramsden Eyepieces	Flat field of view, reticle compatibility	Measurement microscopes, coordinate measuring machines (CMM)
Wide-Angle Lenses	100 + field of view, ergonomic observation	Automated optical inspection (AOI) systems
High-Eye-Point Eyepieces	Ergonomic design for eyeglass wearers, extended eye relief	Industrial quality control stations
Apochromatic Lenses	Multi-element design for superior chromatic aberration correction	Semiconductor wafer inspection systems

3. Structure & Composition

Typical components include:

Optical Elements: Precision-ground glass/ polymer lenses (e.g., achromatic doublets, aspherical surfaces)
Mechanical Housing: Aluminum alloy/ stainless steel barrels with anti-reflective black anodization
Coatings: Multi-layer anti-reflective (AR) coatings, hydrophobic top layers
Adjustment Mechanisms: Interchangeable diaphragms, focusable lens mounts

4. Key Technical Specifications

Parameter	Typical Range	Importance
Magnification	5x-30x (eyepieces), 0.5x-100x (lenses)	Determines measurement resolution and field coverage
Field of View (FOV)	10 -120	Affects inspection efficiency and ergonomics
Numerical Aperture (NA)	0.1-0.95	Directly correlates with resolution and light gathering
Working Distance	5mm-300mm	Impacts accessibility in complex assemblies
Wavelength Range	400nm-1700nm	Defines compatibility with illumination sources

5. Application Fields

Semiconductor Manufacturing: Wafer defect inspection (KLA Surfscan systems)
Automotive: Surface roughness measurement (3D optical profilers)
Medical Devices: Micro-surgical tool inspection (confocal microscopes)
Electronics: Solder joint inspection (automated X-ray lenses)
Aerospace: Composite material analysis (polarized light lenses)

6. Leading Manufacturers & Products

Manufacturer	Headquarters	Representative Product
Carl Zeiss AG	Germany	Observer C-Apochromat 1.2 NA lens series
Olympus Corporation	Japan	UPlanSApo 100x oil immersion lens
Keyence Corporation	Japan	VHX-5000 series high-magnification lens
Edmund Optics	USA	59-875 C Series Fixed Focal Length Lens

7. Selection Guidelines

Key considerations:

Match numerical aperture to illumination system capabilities
Select working distance based on sample accessibility constraints
For color imaging applications, prioritize achromatic/ apochromatic designs
Environmental factors (temperature, vibration) require mechanical stability
Ensure compatibility with sensor formats (1.1", 1.5", etc.)
Budgetary constraints vs. lifetime cost analysis (coating durability, replacement costs)

8. Industry Trends

Current developments include:

Integration of AI-driven adaptive optics for real-time aberration correction
Multi-spectral lens systems combining visible/NIR/SWIR imaging
Microlens array technology for compact endoscopic inspection
Increased adoption of liquid lenses for variable focus applications
Smart eyepieces with embedded AR displays for guided inspection workflows

Market forecasts indicate 8.2% CAGR through 2027, driven by semiconductor and biomedical imaging demands.