10-99 Pieces US $5.00
100-999 Pieces US $3.00
1,000+ Pieces US $1.00
Product Description
Product Description Achromatic Lens It has a negative focal length and are used to diverge a beam of parallel light. Diameter 2-250mm Radius 5mm Centration 90% Surface roungh 60/40, 40/20 or better Surface flatness lambda/4, lambda/2 or as request Chamfer 0.1+/-0.05mmx45deg ...