Lenses

Part Number	Description / PDF	Quantity
G063239000 Excelitas Technologies	ACHR. VIS ARB2; D=25.4; F=500; M	0
G063162000 Excelitas Technologies	BICONVEXL.; FUSED SILICA; D=31.5	1
G063022000 Excelitas Technologies	BICONVEXL.; N-BK 7; D=22.4; F=30	70
G063131000 Excelitas Technologies	ACHR. VIS ARB2; F=35; MOUN	40

Lenses

1. Overview

Optical lenses are precision components designed to manipulate light through refraction, enabling beam shaping, focusing, or imaging. They serve as fundamental elements in optical systems across scientific, industrial, and consumer applications. Modern technologies rely on lenses for applications ranging from high-resolution microscopy to autonomous vehicle LiDAR systems, with advancements in materials and manufacturing driving performance improvements.

2. Major Types and Functional Classification

Type	Functional Characteristics	Application Examples
Spherical Lenses	Simple curved surfaces with uniform radius	Basic imaging systems, eyepieces
Aspheric Lenses	Non-spherical surfaces correcting spherical aberration	High-precision cameras, laser diode collimation
Cylindrical Lenses	Single-axis curvature for line focusing	Laser beam shaping, spectroscopy
Achromatic Lenses	Multi-element design correcting chromatic aberration	Microscopy, telescopes, white light systems
Reflective Mirrors	Metallic surfaces for broadband reflection	High-power laser systems, UV applications
Diffractive Optics	Micro-structured surfaces enabling complex beam profiles	3D sensing, medical imaging

3. Structure and Composition

Typical optical lenses consist of: - Substrate Material: Optical glass (e.g., BK7, SF11), plastics (PMMA, polycarbonate), or crystals (sapphire, germanium) - Surface Geometry: Spherical, aspheric, or freeform profiles with nanometer-level precision - Coatings: Anti-reflective (AR) coatings (e.g., MgF ), high-reflectivity dielectric coatings, or protective layers - Mechanical Housing: Metal/aluminum mounts with precision alignment features

4. Key Technical Specifications

Parameter	Importance
Focal Length ( 1%)	Determines image magnification and field of view
Numerical Aperture (NA)	Defines light-gathering ability and resolution
Wavelength Range	Specifies operational spectral bandwidth
Transmission Efficiency	Measures optical power throughput
Surface Quality (Scratch-Dig)	Affects stray light and damage threshold
Radius of Curvature Tolerance	Impacts wavefront accuracy

5. Application Fields

Photonics: Laser resonators, fiber optic couplers
Medical: Endoscopes, OCT imaging systems
Industrial: Machine vision, laser cutting optics
Consumer: Smartphone cameras, AR/VR headsets
Aerospace: Satellite imaging, hyperspectral sensors

6. Leading Manufacturers and Products

Manufacturer	Representative Product
Edmund Optics	59-875 C Series Fixed Focal Length Lens
Thorlabs	AC254-050-A Achromatic Doublet
Carl Zeiss	Plan-Apochromat 100x/1.46 Oil Immersion Lens
Sch fter+Kirchhoff	67-588-IG 1.306 NA Micro-objective

7. Selection Recommendations

Key selection criteria include:

Match wavelength range to coating specifications
Balance NA requirements with spherical aberration control
Consider thermal stability for high-power applications
Implement environmental protections (humidity, vibration)

Example: Selecting a telecentric lens (e.g., Edmund 59-875) for industrial metrology ensures minimal perspective error in dimensional measurements.

8. Industry Trends

Current developments include:

Hybrid aspheric-diffractive designs for multi-spectral correction
Freeform optics enabled by diamond turning manufacturing
Smart lenses with integrated MEMS wavefront control
Nanostructured anti-reflective coatings (subwavelength gratings)
AI-driven lens design optimization algorithms

The global optical lens market is projected to reach $15.2 billion by 2027, driven by demand in 3D sensing and autonomous vehicle technologies.