Fluorescence Filter China Manufacturer & Supplier
We manufacture optical filters for the bioscience industry, ranging from single-band fluorescence filters to multiband fluorescence filters, supporting applications from fluorescence microscopy to a wide array of bioscience research needs.
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Discover our manufacturing capability
We manufacture optical filters covering a wide spectral range from 200nm to 14,000nm, catering to various applications. Our product range includes bandpass filters, long-wave pass filters, short-wave pass filters, Raman filters, notch filters, dichroic filters, beam splitters, reflective mirrors, and anti-reflection windows for laser optics.
About Us
We specialize in manufacturing hard-coated standard fluorescence microscopy filter sets, PCR optical filter sets, laser LiDAR optical filter, fiber telecom optical filters, and machine vision imaging filters. With a large inventory of filters readily available, we ensure immediate delivery to meet your needs. Our advanced coating machines and systems enable us to produce highly durable optical filters with exceptional spectral performance, customized to client-specific requirements.
Coligh Company Profile
Coligh, based in Chongqing, is a specialized manufacturer of hard-coated standard fluorescence filters, precision optical filters, lenses, and crystals.
Located in one of China’s four renowned optical hubs, Coligh benefits from a robust optical ecosystem and strong technical support.
With a diverse client base and deep expertise across applications such as laser optics, optical imaging, photography, biomedical technology, and machine vision, Coligh delivers optical components precisely tailored to customer needs.
Many of our employees have been with Coligh for over eight years, bringing a wealth of experience to ensure precise adherence to specifications. By leveraging advanced equipment for machining, polishing, coating, and inspection, we consistently and efficiently produce high-quality optical components with exceptional reliability.
Latest Products
Quick Prototype for Research and Development
We maintain a large inventory of optical filters, enabling rapid delivery. With extensive experience across diverse applications, we have a thorough understanding of client needs and can recommend the most suitable filters. Filters can be shipped within 3–5 days for testing. For custom optical filters, OEM filters can be shipped to the client within 15 days in the earliest and no later than 20 days.
Rapid Lead Time for Mass Production
Thanks to our strong collaboration with suppliers, we can swiftly adapt to various customization and substrate requirements. By combining fully automated and manual inspections, we significantly enhance inspection efficiency. Additionally, our skilled coating engineers and multiple high-end coating machines greatly improve the yield rate of optical filters. All these factors enable us to deliver bulk orders to clients quickly and efficiently.
Engineering solution for free quote and design
We have an outstanding and professional technical team dedicated to designing spectral and technical parameters that best meet our clients' requirements. Based on each client's industry and application, we provide targeted spectral design recommendations. Whether you have just an idea or detailed technical drawings with specifications, we can turn them into high-quality optical components.
Excellent Pre-sale and After-sale service
Our clients are located worldwide, including thousands of partnerships with high-demand customers from countries such as Germany, the United States, France, Italy, South Korea, and the Netherlands. In international collaborations, our sales team undergoes comprehensive training to provide prompt, enthusiastic, and professional technical support and service solutions. All client inquiries and evaluations are responded to within one hour during working hours, with 16 hours of daily online availability to address customer questions and concerns.
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