Coligh  is a Chongqing-based custom optical filter manufacturer focused  exclusively on hard coating standard fluorescence filters, precision  optical filters and optical lens. Chongqing is one of four famous optics  centers in China. This enables Coligh to have a strong optical  atmosphere and optical environment technical support. Most of our  employees worked in Coligh for more than 8 years, this enables us to  produce the specifications according to customer’s needs. With the  advanced and adept polishing, coating, and inspection equipment,  customers’ optical components are fabricated consistently and  effectively. 
Coligh  manufactures custom optical filters like bandpass filters, long-pass  filters, short-pass filters, dichroic filters, beamsplitter, dichroic  mirrors, lens,es and prisms for commercial and industrial applications.  These products enable us to serve emerging technologies and machines.  |