Changchun Effort Technology Co.,Ltd was a professional mannufacture of optics in the world.Our company based in Jin Lin Province,Changchun City, which is the orginal of Changchun Institute Of Optics, Fine Mechanics And Physics Chinese Academy Of Sciences,the biggest Chinese Academy Of Sciences in China. Our company experienced engineers can design custom optical assemblies and specialty coatings to meet your specific requirements.Our professional,skillful and experienced technicians take pride in consistently fabricating high quality products.Our specialist team have ever worked on the photonics industry for many years.EFFORT has been involved in designing, research and development, manufacturing and assembling of precision optical components and optical system. Our main products covers optical component made of optical glasses, infrared crystal and fused silica, such as optical windows, filters, lens, prisms, mirrors,Diffraction Gratings, Infrared Optics, Ultraviolet Optics,Laser Optics,Defense Optics,ect.Every product is strictly inspected to meet our standards or specifications required by customers before it leave EFFORT.Over 90% of the company's products were exported to overseas and the company has a marketing network covering USA, Canada ,United Kingdom, Italy, Germany, France, Netherlands, Lithuania, Hungary, Austria, Japan, Turkey, Singapore, India, Malaysia, Israel, Brazil, etc.. endeavoring to provide convenience to its customers. The appearance, quality and price of the company's products have been well approved and appreciated by customers. EFFORT follow High Quality, Quick Response, On-Time Delivery! Win product prices for its customers. We warmly welcome new and old customers from home and abroad.Hope to establish long-term and friendly business relationships with you on the basis of mutual benefit. We are confident because we have good team work, strict quality control system, best after-sales service. "EFFORT to PERFECT." EFFORT will insist on the goal to guarantee your satisfaction!