Custom Through Glass Via (TGV)  Provider & Micro Optics Diffractive Optical Element, Microlens Arrays Manufacturer

Custom and Manufacturer EUV to Infrared Optical Filters, Miniature to Large Aperture Optical Lens & Optical Windows

Founded in 2015, Coligh Optics Technology is a technology enterprise specializing in the design, development, and manufacturing of high-end lithography micro-nano optical elements, advanced semiconductor glass substrates, and customized optical components.

Rooted in micro-nano processing technology, precision optical fabrication, and thin-film coating, we are committed to providing customers with high-performance, high-reliability solutions ranging from macro-optics to micron and nano-structures. Our Diffractive Optical Elements (DOEs) and micro-optics have been widely adopted across medical aesthetics, semiconductor manufacturing, scientific research, and advanced laser systems.

Building upon our core micro-nano fabrication capabilities, we have expanded our advanced manufacturing portfolio to include precision Through-Glass Via (TGV) technology.

To support our precision optics, our advanced thin-film coating division utilizes magnetron sputtering, ion-assisted deposition (IAD), and high-vacuum coating technologies to deliver exact spectral performance. We process a broad wavelength range spanning from deep ultraviolet (200nm) to far infrared (30μm), engineering a comprehensive array of specialized coatings:

• Precision Filters: Ultra-narrow bandpass filters, multi-bandpass filters, multi-band notch filters, narrow/broadband infrared filters, short-pass, and long-pass filters.
• Optical Films & Windows: Spectroscopic films, broadband anti-reflection (AR) coatings, single-point AR coatings, and optical protection windows.
• Functional Coatings: Beyond conventional dielectric and metallic layers, we process ITO conductive films and EMI shielding films for complex electro-optical integration.

Backed by years of development, we maintain a comprehensive inventory of standard DOEs and micro-optics. Driven by our core optical design and strict metrology competencies, we are fully equipped to provide precise, custom-engineered solutions tailored to the strict tolerances and technical requirements of our clients.

We design and precisely manufacture various types of refractive and diffractive microlens arrays (square, hexagonal, circular, random aperture, linear, cylindrical), as well as high-precision diffractive optical elements (DOEs) such as beam splitters, homogenizers, and phase plates.

We offer a wide range of high-performance custom optical filters covering deep ultraviolet (DUV) to far infrared (FIR), including complex multi-bandpass filters, dichroic mirrors/beam splitters, longpass/shortpass filters, notch filters, laser line filters, and specialized filter sets for fluorescence applications.

We not only offer standard products but also specialize in “from-scratch” design and manufacturing based on customers’ unique requirements for micro lens arrays, DOEs,  wavelength, angle, size, environment, and performance specifications.

We specialize in the precision fabrication of optical components (lenses, windows, optical assemblies) using various infrared materials such as ZnSe, ZnS, Si, Ge, Sapphire, CaF₂, MgF₂, Chalcogenides, and BaF₂. We are Capable of large diameter up to 1000mm.

We are the first provider of medical aesthetics DOEs in China. We have cooperated with medical aesthetics manufacturers in Israel and South Korea and have a deep understanding of the medical aesthetics industry’s demand for DOEs.

Our cross-functional team enables continuous innovation and problem-solving in complex optical engineering projects.

We achieve sub-micron to nano-scale lithography and etching on hard materials like fused silica and silicon with high consistency.

We utilize IBS, magnetron sputtering, and e-beam coating to achieve high-performance filters with precise control and durability.

We offer sub-nanometer surface polishing and high-precision fabrication for hard, heat-sensitive material.

We ensure quality through a complete process chain from raw materials to final inspection with advanced metrology tools.

Advanced Through glass via TGV glass substrate solutions for high-density interconnections in Micro LED displays and semiconductor packaging.

Precision glass processing solutions for ultra-thin glass, micro-hole drilling, cutting, and polishing, serving Mini/Micro LED displays and advanced semiconductor packaging.

Advanced PVD copper coating and PI slurry synthesis solutions for glass metallization, TGV interconnections, and semiconductor packaging applications.