Kunming Yulong Optics Co., Ltd. is a professional manufactures of optical coatings and optical filters processing in China. Our products include AR coating filters, Bandpass Filters, Edge filters, Longpass Filters, beamspliters and so on. Our company were established in 1999, the plant area cover more than 1,200 square meters and the total investment were more than 2 million dollars. Our factory located in Kunming, Yunnan National Hi-Tech Industrial Development Zone. We had passed the ISO9001 certification. In September 8, 2006 ,tested by SGS, our products completely comply with RoHS standard of the Europe. Also,we are the believable member of Alibaba,which is best B2B web of the world. We have five precious vacuum coating machines which vacuum chamber from 700mm to 1300mm. And two sets of spectrophotometer(UV-VIS-NIR Shimadzu UV3150) which is imported from Japan. And we have complete glass/lens cleaning, processing and inspection equipments,such as Ultrasonic Cleaners with 12 sinks,grinding/cutting machines.Yulong Optics Co. Ltd has much experiences on filters design and producing.We can design and making various types of filters according to customer requirements. Our main products are as follows: 1, Telescope Lens:UHC, UHC-E,CLS,H-Beta,O-III,H-Alpha,UV-IR Blockers, Skyglow filter, Color Filters,UV Lens,Protective Glass; 2,Laser Filters: Beamsplitters/half mirrors, 532/650/808 laser filters,905 narrow bandpass filters,RDM,BDM,GDM Dichroic Coating ,Dichroic Filter, color filters, Windows, Laser bar code identification filters, BG39 Optical glass,cover glass; 3, Camera Lens: UV-cut filter,UV optical filter,UV Lens,MC-UV Lens,Water-proof Lens,High Anti-Reflective Filters; 4, Bandpass Filters: 532 narrow optical filter,650nm band pass filter,808nm bandpass optical filter,850,880,905 Bandpass Filter,Red/Green/Blue filters, Color filter,visible light filter, Emission Filters,UV-IR blocker,IR filter,Long Wave Pass Filters;Long Wave Pass Filters;Short Wave Pass Filters;IR Pass Filters;UV Pass Filters,IPL Filter,laser line filters,analytical filters,fluorescence filters,............ 5,Beamspliters: 70/30,30/70,50/50 half mirrors,Nonpolarising Beam Splitters Coatings,Polarization Beamsplitter Mirror,Beam Splitter plate. 6, Reflective coating:Cold mirror,hot mirror, medium high reflective film, metal / dielectric film with high reflective coating mirror, silver mirror, aluminum mirror; 7,Digital optical filters: IR-Cut Filter,Day&Night Filter, CCD camera filters, Protective windows; 8, Anti-reflective coating:Single Layer MgF2 AR Coatings;Multilayer AR Coatings;Broadband Multilayer AR Coatings;Dual Wavelength Band AR Coatings; Supplying high quality optical products, with competitive price and timely delivery, we have confidence to be your superior and top partner of optics.

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Astronomy Optics

In 2003,YULONG had succeed in developing the first piece of light pollution filter.And now,we can do mass production of light pollution filters,such as UHC、O-III、H-Beta、H-alpha、UV-IR-Blocker、RGB Filteretc. All the filters are made by the precious vacuum coating machines, used ion assisted deposition technology...More>>
UV Lens

Start from 1999 when the company built,YULONG had designed and manufactured kinds of camera UV lens which with different apertures: simple UV lens and MC-UV lens,High-transmitting protective windows, strong water-proof coating lens, etc...More>>
Laser Optics

We can supply many types of laser filters:Beamsplitters, laser optical filters,mirrors，laser windows,reflecting mirrors,etc. They are widely used in laser measurement, stage performance,laser remark systems and so on. ...More>>
Optical Filter

Supplying longpass filters,Shortpass filters and Bandpass fitlers with different center wavelengths.They are made byprecious vacuum coating machines, which used ion assisted deposition technology,and it can effectively solved the problem of wavelength shift..So our filters are with stable optical performance...More>>
Digital Optics

Supplying Production of filters for digital systems: IR-Cut filter,UV-IR-cut filter,OLPF,Cover glass,Camera windows and so on.......More>>
Optical Windows

Manufacturing kinds of protective windows for optical systems with different dimensions and shapes: trapezoid, irregulars angle shape,ellipse,ect. The smallest size can be as diameter 3.5mm and square 22mm.We accept customers design....More>>
Optical Mirrors

Metal mirrors/reflectors: supplying Aluminum, Gold and Silver coating mirrors.Dielectric mirrors/reflectors: The performance wavelength can be as points wave and band wave,with different angles,different performances. Our reflectors with high reflective and the film is firm/stable,dense,uniform and corrosion resistant....More>>
Beam Splitter

Supplying metal and Dielectric coating beamspliters with different performance under the different angles.Beamspliters can separate one light into two bundles lights---Reflection and transmission.Or can combine two bundle of lights with one light. Those two types beamsplitters are widely used in optical systems: laser systems, OPDX, projectors (Dichroic mirrors), etc....More>>