Microlens Arrays offer High-Precision Beams and High Integration
Lens Arrays are optical components consisting of multiple microlenses arranged in a regular pattern, designed for beam homogenization, beam shaping, and optical integration. Their compact structure and precise geometry enable uniform light distribution and efficient coupling in advanced photonic systems.
Feature:
- Multiple microlenses for beam homogenization and uniform intensity distribution
- High precision geometry ensures consistent beam shaping and low distortion
- Compact design ideal for integration in miniaturized optical modules
- Superior surface accuracy and polishing for reliable optical performance
- Custom sizes, lens patterns, and coatings available for diverse applications
Application: Laser beam homogenization, optical communication, projection systems, LiDAR, sensors, medical imaging, and photonic devices requiring compact and efficient light control.
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Lens arrays are structured with multiple identical or varying lenses arranged in formats such as linear arrays or two-dimensional matrices (square, hexagonal). Each sub-lens can perform individual functions like focusing, collimating, or diffusing light, enabling simultaneous multi-beam processing.
Structural Types:
- Linear Lens Arrays: One-dimensional cylindrical lens arrangement, ideal for line scanning and slit illumination.
- 2D Lens Arrays: Matrix layout for full-field light shaping, beam homogenization, and imaging applications.
- Aspherical Arrays: Correct optical aberrations and improve resolution in imaging systems.
- Tunable Lens Arrays: Electrically controlled focal length for adaptive optics and dynamic beam shaping.
Materials & Manufacturing:
- Materials: Optical glass (BK7, fused silica), polymers (PMMA, PC), silicon (for IR), flexible substrates (PDMS) for wearable and curved surfaces.
- Processes: Photolithographic reflow (for microlens arrays), injection molding (mass production), laser microfabrication (custom, high-precision).
Core Optical Features:
- Parallel Beam Processing: Each sub-lens modulates a distinct portion of the light field.
- Uniform Light Distribution: Transforms Gaussian beams into flat-top beams for consistent energy delivery.
- Field-of-View Expansion: Enhances wide-angle imaging and depth capture in systems like light field cameras.
- Miniaturization: Microlens arrays (MLAs) support on-chip integration in mobile devices and compact optical modules.
Application Fields:
- Imaging & Photography: Light field cameras, confocal microscopy, multi-view 3D displays.
- Laser Processing & Lithography: Beam shaping for laser engraving, wafer cutting, and uniform illumination in photolithography.
- Optical Communication & Sensing: Fiber coupling, VCSEL/PD arrays, LiDAR scanning, distributed fiber sensors.
- Consumer Electronics: Smartphone camera modules, VR/AR optics, optical fingerprint recognition.
- Scientific Research & Astronomy: Solar telescopes, quantum optics, and high-throughput optical experiments.
| Parameter | Typical Range / Options |
| Array Configuration | Linear, 2D Matrix (Square/Hexagonal), Custom Layouts |
| Sub-Lens Diameter | Microlens: 10–500 μm; Macro lens: 0.1–10 mm |
| Focal Length (f) | Fixed or Variable (e.g., 0.5 mm to 50 mm) |
| Sub-Lens Shape | Spherical, Aspherical, Cylindrical, Freeform |
| Materials | BK7, Fused Silica, PMMA, PC, Silicon, PDMS |
| Coating Options | AR, HR, IR, UV, Broadband |
| Fabrication Method | Photolithography, Injection Molding, Laser Microfabrication |
| Wavelength Range | UV (193 nm) – IR (10.6 μm), material-dependent |
| Surface Roughness | <5 nm for imaging-grade lenses |
| Damage Threshold | >10 J/cm² (for laser processing applications) |
| Fill Factor | >90% (for beam homogenization and uniform illumination) |
| Customization | Focal length, pitch, layout, substrate size/material |
