Its Key Advantage Below:

• We use advanced micro-nano photolithography technology and adopt wafer-level silicon as the substrate, which is particularly suitable for 1550nm and 2940nm wavelength bands.
• The square microlens array can also be designed in circular, hexagonal, or freely defined shapes.
• The standard sub-aperture unit ranges from 127.0μm to 1500.0μm, with customization available for any sub-aperture size within the 10–1500μm range.
• The standard focal length ranges from 0.53 to 35, and can be customized as needed.
• The lens surface profile can be spherical, aspherical, or freeform.
• We can fabricate multiplemicro lenses on the same wafer.

 

Silicon Square Microlens Array Standard Specifications:

 

Why Choose Coligh for customizing Optical Microlens Fabrication?

We offer two fabrication processes for microlens arrays: photolithography microlens arrays and imprinting microlens arrays.

• Different processes suit different materials; we can work with silicon, fused silica, PMMA, metals, and more.
• Our solutions cover both cost-sensitive applications and high-precision beam shaping.
• We provide flexible design and customization services, supporting both small-batch development and mass production.

 

In-house Micro Optic Arrays Manufacturing Optical Design And Manufacturing capability 

 

Coligh’s Quality Control System Over Microlens Arrays

 

To ensure the precision, consistency, and reliability of microlens arrays, we have implemented a series of measures:

• Based on detailed communication with customers and their application requirements, we validate optical designs using software such as Zemax and CODE V.
• After simulation and design, we produce small batches of samples for trial production and testing to ensure they meet design specifications, verifying with tools like white light interferometers, optical microscopes, spectrometers, AFM, and SEM.
• During mass production, we perform strict process control combined with automated inspection and manual sampling to test optical parameters such as surface roughness, transmittance, and focal length.
• We improve product quality and develop new process flows based on customer feedback.

 

Silicon Silicon Square Microlens Array Application:

• Beam Shapping and Collimation
  In the coupling between fiber arrays and optical devices, beam collimation, focusing, and coupling are required. Silicon microlens arrays can be used for beam shaping at fiber end faces, suitable for data center modules and metropolitan area network transmission equipment.
• Machine Vision
  In machine vision, sensing and lighting devices require highly efficient and uniform light sources. Silicon microlens arrays can shape and homogenize the beam, ensuring efficient and uniform light distribution.
• Medical Optical Devices
  In medical devices such as optical modules for in vitro diagnostics, optical coherence tomography (OCT) scanners, and endoscopes, silicon microlens arrays can be used for beam splitting, collimation, and focusing to ensure image brightness, uniformity, and high resolution.