OPTOLONG specialized in optical filter design and processing since 1999, OPTOLONG offer Bandpass Filter ,Astronomy Filter ,Fluorescence Filter,Edge Filter,Beam Splitters, Reflective Mirror, Anti-reflective coating, Optical windows etc. Custom filters can be fabricated:please contact our technical support staff to discuss your particular requirements.OPTOLONG provided nearly 2000 optical coating lenses for more than 700 optical companies all over the world, and we have working relations with 4 global top 500 enterprises and 2 world famous EMS manufacturers.OPTOLONG have obtained ISO9001 system certificate since 2005. In September 8th, 2006, tested by SGS, ROHS certification. We are the first people of Golden Supplier from Alibaba, and passed the third party ---TUV Rheinland and Bureau Veritas independent audit.
