Array ( [id] => 80588 [video_id] => 94694 [cid] => 51768 [pids] => 35983855 [src] => 0 [related_product] => Array ( [pid] => 35983855 [name] => Ligne en verre optique lentille concave de laser du matériel BK7 de Plano de lentille [name_en] => Optical Glass BK7 Material Laser Line Lens Plano Concave Lens [prod_desc] => Optical Glass BK7 Material Laser Line Lens Plano Concave Lens A plano concave lens is an optical lens with one concave surface and one flat surface. It has a negative focal length, and can be used for light projection, beam expansion, or to increase focal length of an optical system. Our company is a professional customized-oriented optical company. Our main products are prisms including triangular prisms,penta prisms,roof prisms. Lens such as plano convex,plano concave [related_keywords] => Cylindrical Laser Line Lens,BK7 Laser Line Lens,Optical Glass Plano Concave Lens [jump_url] => //www.optics-glass.com/sale-35983855-optical-glass-bk7-material-laser-line-lens-plano-concave-lens.html [img_url] => //img1.ecerimg.com/2d/f7/ad0db75e10ec/product/126978467_s-w400xh400.jpg [cate_id] => 23160400 ) ) service