Yulong Optics Co., Ltd

Kunming Yulong Optical & Electronics Technology Co., Ltd. is a high technology company, which specialized in optical filter design and processing. OPTOLONG Established in ***9, and located in Kunming City .We provided nearly ***0 optical coating lenses for more than **0 optical companies all over the world, and we have working relations with 4 global top **0 enterprises and 2 world famous EMS manufacturers.We've obtained ISO***1 system certificate since ***5. In September 8th, ***6, 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.

OPTOLONG products including three main categories :

Astronomy Filters:

We are the most professional manufacturer of astronomical filters in China,we have broken the foreign monopoly situation on astronomical filters. OPTOLONG produce more than *0 kinds of astronomical filters ,such as UHC,CLS-CCD,H-Beta,O-III,H-Alpha,SII-CCD *2nm,LRGB,Night Sky H-Alpha,ND2～***0,offers more options for amateur astronomers all over the world.

Fluorescence Filters:

We design and product all specifications of fluorescence filters,include excitation filter, emission filter,and dichroic mirror.

Laser and Bandpass Filters:

We are with the filter design and production experience for many years, can be customized bandpass filter with wavelength from **0 nm to ***0 nm.

Also others :

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.

Main of our optical filter is for high-tech fields like photoelectric medial instrument, laser system devices, motion sensing game, monitoring and photography, optical laying equipment, astronomical observation, and so forth.

There are five high precious optical vacuum coating machines,Spectrophotometer, Ultrasonic Cleaners with *2 sinks,and optical processing equipment here. Advanced equipment and experienced staffs guarantee OPTOLONG could supply competitive prices,graceful quality products,timely delivery and perfect services to our global customers. Thanks for your attention and remember OPTOLONG is your Optical Coating Partner at any time!