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  Blackboard Optics
Description:

An assortment of lenses and mirrors that stick to blackboards with strong magnets; demonstrate reflection, refraction, dispersion, total internal reflection.

Notes:

The photo below shows what's available in the box (note that the magnets do not stick on whiteboards!):

  • 5 plastic lenses: triangular prism; rectangle; Semicircular, Plano-convex lens and Plano-concave lenses
  • 3 mirrors: two planes; 1 concave & convex
  • 3 plastic bars (each with two red magnets) of two lengths used to hold mirrors/lenses to the board (*Be sure to remove magnet covers!)
  • 1 magnetic light source. Do not exceed 12 volts DC!
  • Other assorted crap in the box

You'll also need a DC power supply, preferably one with an internal voltmeter so that you don't exceed 12 volts DC!

Location:

LDL-Workbench. The storage box is generally sitting on the workbench

Image: Blackboard optics
All the parts are in the box. You only need a DC power supply
Blackboard optics
The light source. Do not exceed 12 volts DC!
Lens holders
Lens mirror holders. Note that closer holder has magnet covers removed
Magnets
(Front to back): Magnet cover; magnet; magnet with cover attached
Light source
The light source slips on to a magnetic attachment.
The light ray passes through the plastic lens
Blackboard optics
All parts are in this attactive wood storage box
 

 

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    Revised: 09 Nov 2018 Canton, NY 13617