Micro Optics Engineering

To meet the demands of micro-optical systems for extremely small, ultra-high precision optical components, we have established a dedicated production line for the fabrication of micro-precision optical components, producing microlenses, micro aspherical lenses, micro prisms, micro beam splitters, micro cylindrical lenses, micro windows, and micro mirrors with apertures larger than 0.6mm. We have developed a specialized micro-clamping system and a low-stress adsorption assembly process to avoid deformation and edge chipping during the fabrication of micro-components, ensuring consistency and reliability in batch deliveries.

These products are widely used in medical laser systems, infrared sensing, optical communication, optical lasers, and consumer electronics.

Core Product Series

Microlens Series

Miniature Plano-Convex Lenses

Miniature Aspherical Lenses

Miniature Spherical Lenses

C-Lens

Square Lenses

Miniature Collimating Lenses

FAC

SAC

Cylindrical Rod Lenses

Microprism Series

Hexagonal Prism

Roof Prism

Wedge Prism

Right Angle Prism

Miniature Stereo Spectroscope

Pentagonal Prism

Dowell Prism

Pyramidal Prism

Miniature Window Series

Sapphire Miniature Plane Window

Ruby Miniature Plane Window

Miniature Rod Series

Sapphire Rod

Ruby Rod

Processing Capabilities and Technical Specifications

Regular Processing Capabilities

Minimum processing size >= 1mm

Surface accuracy: PV < 0.25um @ 632.8nm

Surface finish: 20-10 (MIL-PRF-13830B)

Miniature Prism Series

We possess the capability to process miniature prisms down to 1mm in diameter, encompassing miniature right-angle prisms, miniature pyramidal prisms, miniature stereo beam splitters, roof prisms, pentagonal prisms, Dove prisms, and other pyramidal prisms.

Microlens Specifications

We have the capability to manufacture aspherical lenses larger than 0.6mm.
Surface finish PV < 0.25u
Eccentricity accuracy 20 sec - 1 arc minute
Center thickness +/- 0.02mm

Precision Molding Process

To address the geometric features and precision requirements of micro-machining, we employ precision molding and high-precision CNC molding processes, overcoming three major technical challenges:

Controlling surface damage

Surface damage is controlled at the nanoscale by optimizing grinding parameters and polishing slurry ratios.

Suppressing microcracks at edges

Developing edge polishing strategies to eliminate edge defects such as chipping and serrations.

Controlling thermal effects

Implementing heat-affected processes during molding to ensure uniform refractive index and surface stability.

Coating Technology for Micro-Components

For micro-optical components, we have developed a coating technology for micro-grippers, which can solve the problems of edge effects, morphology, and clamping damage during the coating process.

We can process:

  • Broadband antireflection coatings: Residual reflectance R<0.5% (visible light) / R<0.3% (near-infrared)
  • High reflectance coatings: R>99.8% @ specified wavelength
  • Beam splitters: 50:50 / 30:70 ratio
  • Metallic films: Aluminum, silver, gold, with protective layer

Currently, we support the following material 

range for microfabrication:

  • Sapphire: Microwindows, fiber optic coupling lenses, high-power laser components
  • Fused silica: Fiber optic endfaces, microlenses
  • HK9L: Microprisms, microbeam splitters
  • Ruby: Microbearings

Application Areas

Medical Micro-Laser Systems

Micro-laser crystals and Q-switching elements for dental aesthetics, ophthalmic surgery, and skin treatment

Infrared Sensing Systems

Miniature infrared windows, filter substrates, aspherical collimating lenses

Precision Measurement Systems

Miniature corner cube prisms, miniature beam splitters, laser interferometer reference components

Optical Communication

C-lens, miniature collimating lenses, fiber optic coupling modules

Fiber Lasers

Miniature aspherical lenses, cylindrical rod lenses, high-power heat dissipation windows

Consumer Electronics

Miniature projection optical modules, 3D sensing transmitter lens arrays