Glass Prism 45-45-90 Degrees
Glass Prism 45-45-90 Degrees
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
A right-angled glass prism - the one that bends light through 90 degrees
Solid glass prism. Right-angle sides 5.4cm, hypotenuse 7cm, 3.8cm thick.
A 45-45-90 prism does two things an equilateral prism cannot. Point white light through the sloping face and you get a spectrum, same as any prism. But send light in square through one of the short faces and it turns a clean right angle by total internal reflection - no silvering, no mirror, just glass and geometry. That is how periscopes and binoculars work, and seeing it happen in a solid block is more convincing than being told.
Solid glass, not acrylic, so it stays clear and does not scratch to a haze after a term of being handled.
These are made by hand, so the supplier warns dimensions vary slightly between pieces. If you need a matched set for a measuring exercise, tell us and we will ask before shipping.