[50mm×50mm]
Double-convex (biconvex) polished glass lens has two outward curved surfaces that converge light rays to a point to demonstrate optical principles and effects to students. The lens has a focal length of 50 mm and a diameter of 26.9 mm, 28 mm, 30 mm, 42 mm, 50 mm. It is made of polished glass with polished edges. Lenses are used in science experiments and demonstrations in the classroom.
Package includes:
1 x convex double lens.
Note:
Please allow 1-3 mm error due to manual measurement. Please make sure you do not mind before you bid.
Warm tips:
1. We recommend our customers to buy it very soon after your planned use.