true zero order waveplate 12 7mm

{"cid":"91213983","title":"Large Feild Angle Optical Waveplate 12.7mm True Zero Order Waveplate","imgUrl":"https:\/\/img.ismap.com\/nimg\/7a\/76\/3508644af4fe897a69a6d8ff6a3c-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"STAR OPTIC","Model Number":"WPF","Minimum Order Quantity":"1pc","Delivery Time":"Negotiable","Certification":"RoHS, ISO9001","Place of Origin":"Wuhan, China","Payment Terms":"T\/T, Western Union, Paypal","Supply Ability":"50000pcs\/Month","Packaging Details":"Safe and dust-free packing","Product Name":"True Zero Order \u03bb\/2 Half Wave Plate","Material":"Crystalline Quartz + BK7","Retardation":"half-wave(\u03bb\/2)","Type":"Cemented","Main Feature":"Large angle acceptance","Coating":"AR coated on both sides"}}