xiamen dnd industrial co ltd
optical lenses, Partial Reflection Coating, Right Angle Prisms, Plano-Concave Cylindrical Lenses, Fused Sillica Windows, Manufacturer and Supplier - China
Bi-Concave Lenses is like the Plano-Concave lenses in that they are used to produce divergent light. The Bi-Concave is best used when the input beam is converging. Specifications: Material: Grade A optical glass or Fused Silica Dimension Tolerance... - Update: 2011-12-30