Optolong Optics Co. Ltd

Optolong Optics Co., Ltd is a manufacturer of fluorescence filters and astronomy filters. We also offer other interference filters such as UV filters, visible filters and near-infrared filters, beamsplitter, antireflection coating, and optical mirrors as an OEM service.

Our coating experience of 22 years enables us to design and produce the filters with the most sophisticated spectrum.

Optolong has become the first and only non-replaceable brand for astronomical filters in China. Optolong brand is also known as the comparable filters with an international brand by distributor clients around the world.

Optolong is also specialized in manufacturing high volume optical filters for applications including machine vision, analytical instruments, life science, industry detection, and lasers. With the hard thin-film coating machine, experienced filters design technician, experienced coater operator, stable control, durable property, a lot to lot consistency, Optolong has become the supplier choice of many international instrument manufacturers.