Quick Answer: The Set of 3 Plexiglass Lenses contains three lightweight, clear plexiglass lenses for showing how convex and concave lens forms refract light. Used with a ray box on a white sheet, they show converging and diverging rays and the focal point.
Last updated: October 2026
Key Features
Three lenses in clear plexiglass
Lightweight for repeated classroom handling
Convex and concave lens forms for comparing converging and diverging rays
Used with a ray box, light source, optical bench, screen or white sheet
Refracted rays can be traced to mark the focal point and approximate focal length
Technical Specifications
Specification
Value
Set includes
3 plexiglass lenses
Material
Plexiglass / transparent acrylic-type optical material
Use
Study of refraction, focal length, image formation and ray optics
Learning topics
Refraction of light, convex lens, concave lens, focal point, lens image formation, ray diagrams
About This Product
Laid flat on a white sheet in the path of a ray box, each lens shows the incoming and outgoing rays clearly enough to trace with a pencil. Students repeat the trace for all three lenses and compare the ray patterns, which builds ray-diagram skills.
Frequently Asked Questions
Can the Set of 3 Plexiglass Lenses be used with a ray box?
Yes. Direct a ray box or light source at a lens placed on a white sheet or in a lens holder, then trace the refracted rays to see whether the lens converges or diverges them.
.png)
