The leading manufacturer and supplier service of optics products established in 2001. We provide a variety of optical products with high quality including infrared passive ir lens for industrial detector. Our other otpical products are linear polarizer film and circular polarizer filter at lowest price on our online shop. Our professional products can be used in different situations, such as student experiment, machine maintenance, lecturing, photography, diy, etc. With over 20 years experience in the optical industry, 3dlens has expert knowledge of all areas of otpics. We provide regular mail and fast shipping and convenient payment method by wire transfer and credit card payment through paypal. Please take your time a visit our website to view all.