Acrylic Prism and Lens Set 7 Pieces
Acrylic Prism and Lens Set 7 Pieces
Student's name
First and last name, and class if you know it. This goes on the pack label.
Pickup available at Mega DC – Tweed Heads South
Usually ready in 24 hours
Seven shapes, one box - the set that shows what shape does to light
7 acrylic pieces: rectangle, semi-circle, right-angle isosceles prism, right triangle, triangle, bi-concave and bi-convex. In a carton with a sponge insert.
A single prism shows one thing. Seven shapes let a student answer the question the single prism raises: what does the shape do? The rectangle shows light coming out parallel to how it went in. The semi-circle is the one that makes total internal reflection obvious, because you can send the beam in along the radius and only change the angle at the flat face. The bi-convex converges, the bi-concave diverges, and the triangles disperse.
Acrylic rather than glass, which is the right trade here: a set of seven glass pieces handled by thirty students is a set of seven chipped pieces by the end of term. Acrylic is lighter, cheaper and survives being dropped, at the cost of scratching more easily.
The sponge insert is worth having. Loose optical blocks in a drawer scratch each other, and a scratched face is a useless face.