Purchase Qty. Reference FOB Price
10-999 Pieces US$15.00
1,000+ Pieces US$10.00
Product Description
Product Description A periscope is an optical instrument that uses a system of prisms, lenses or mirrors to reflect images through a tube. Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube. Why prism periscope is better than ...