Coligh Optics Technology Co.,ltd
What we do
Coligh, based in Chongqing, is a leading manufacturer specializing in hard-coated standard high precision optical filters, optical windows, optical mirror, optical prsim , optical lens and laser optics. We leverage our strategic location in one of China’s four renowned optical hubs, benefiting from a robust optical ecosystem and world-class technical support.
With a wide-ranging product portfolio and a diverse clientele across multiple industries, Coligh delivers custom optical components that are precisely tailored to meet our customers’ needs. We specialize in a variety of optical thin film coating filters, including bandpass filters, long-pass filters, short-pass filters, dichroic filters, beamsplitters, dichroic mirrors, anti-reflective windows, reflective mirrors, laser optics windows, optical lenses, optical prisms.
Our products are crucial for applications in emerging technologies and industrial machinery, such as fluorescence microscopy, astronomical telescope, biomedical instrument, machine vision, telecome, laser optics, semiconductor, optical imaging, photography.
Our Capabilities at a Glance
From EUV-14000nm, we combine cutting-edge thin film coating technology, innovation to produce high-performance optical components for a wide range of industries. Here is an overview of our key capabilities:
- [Production Capability]– Precision manufacturing with advanced equipment to produce high-quality optical components in large volumes.
- [Coating Capability]– State-of-the-art thin film coating techniques, including IBS, IAD, and E-beam coatings for high-performance optics.
- [IR Laser Optics Capability]– Specialized optical solutions for LiDAR, thermal imaging, and laser-based systems.
- [Optical lens and Prism Capability]– High-precision prisms for optical beam splitting, deviation, and manipulation.
- [Quality Assurance]– Rigorous quality control and ISO-certified processes ensuring all products meet the highest standards.
Our mission
Our vision is to deliver the most right, consistent, stable, durable and economical custom precision optical coatings solutions for global OEM customers. Reduce the cost and help the projects to going smoothly and successful.
Who we are
With several years of experience in thin film coating and working with more than 1000+ clients in domestic and over the world, the Coligh team has a good insight of optics, engineering, industries applications.
Market we serve
- Semiconductor
- Life Sciences and Biomedical
- Astronomical Observing
- Water Quality and Environmental Monitoring
- Biomedical Imaging
- Spectroscopy and Analytical
- Optical Fiber Communication
- LiDAR (Light Detection and Ranging)
- Industrial Monitoring and Industrial Thermal Imaging
- Security and Search & Rescue
Technologies we target
- EUV Lithography
- Fluorescence Imaging
- DNA Microarray Analysis
- Satellite Remote Sensing
- Drones (Unmanned Aerial Vehicles, UAVs)
- Fluorescence Microscopy
- Infrared Imaging
- Photoacoustic Imaging
- High-Speed Optical Communication
- Autonomous Driving
- Drones (Unmanned Aerial Vehicles, UAVs)
- Laser System
Our mission
Our vision is to deliver the most right, consistent, stable, durable and economical custom precision optical coatings solutions for global OEM customers. Reduce the cost and help the projects to going smoothly and successful.
Why Choose Coligh?
At Coligh, we specialize in providing high-performance optical components for laser systems, autonomous driving, medical imaging, and industrial inspection. With an in-house thin-film coating laboratory and a high-precision CNC ultra-precision machining center, we offer a fully integrated solution from prototype design to mass production.
Full-Spectrum Customization (EUV – 14,000nm)
- End-to-end manufacturing capability, covering custom designs to high-volume production
- Expertise in broadband optical coatings, ensuring high precision across UV, VIS, NIR, SWIR, MWIR, and LWIR bands
High-Volume Production Capacity
- Monthly production capacity exceeding 500,000 units
- Supports diameters ranging from Ø3mm to Ø200mm, catering to diverse application needs
Comprehensive Optical Component Portfolio
- Spherical and aspherical lenses
- Optical prisms and complex optical assemblies
- Custom optical windows and precision laser optics
Dedicated Laser Optics Development Team
- High-power laser focusing lenses (CO₂, YAG, and femtosecond laser compatible)
- Optimized LiDAR receiver lenses (designed for 905nm and 1550nm systems)
- Mass production of thermal imaging germanium lenses (optimized for 8–14μm LWIR applications)
- Durable laser-grade optical windows (engineered for -40°C to +120°C extreme environments)
Rigorous Quality Control & Compliance
- Dual-standard inspection system: MIL-PRF-13830B & ISO 10110
- Surface quality verification using white-light interferometry & laser interferometry
- Coating spectral curves & environmental durability reports provided with every batch
With cutting-edge optical technology, large-scale production capabilities, and uncompromising quality assurance, Coligh is your trusted partner for precision optics.
