-This double-convex glass lens is made of polished optical glass. It measures 50mm in diameter and has a focal length of 25cm.
Sold in a pack of 20 lenses.Students can use the lens to concentrate sunlight or a lamp beam to form a bright focal point, demonstrating how light converges. By projecting an image of a distant object onto a screen, students can explore real vs. virtual images and understand how lenses work in cameras and the human eye.Used as a simple magnifier, the lens can help students explore magnification effects and understand how convex lenses are used in microscopes, magnifying glasses, and telescopes.By placing the lens in water or different media, students can observe how the refractive index affects focal length.They can also compare it with concave lenses to see how different shapes affect light paths.
PRODUCT WARNINGS
WARNING: This product can expose you to chemicals including styrene and lead, which are known to
the State of California to cause cancer, birth defects, or other reproductive harm. For more information go
to www.P65Warnings.ca.gov.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.