EDUCTIONAL-DEMONSTARTION STAND FOR STUDYING AND DEMONSTRATING LIGHT PHENOMENA Russian patent published in 2008 - IPC G09B23/22 

FIELD: educational aids.

SUBSTANCE: stand can be used for studying optical laws of physics, in particular, diffraction effect. Stand for studying and demonstrating light phenomena has casing, electric motor 8 disposed in carrier arm pieces 3 and 4 inside casing, radiation power source 13, and control unit 14. Sliding bearing 6 is attached to guides 5. Post of tested object is disposed onto sliding bearing. Posts of laser radiation and representation unit are fastened to carrier arm-pieces 3 and 4 correspondingly. Posts of tested object and of laser radiator are provided with rotary heads-discs 17 and 18 correspondingly; representation unit is made in form of periscope. Radiator, tested object and representation unit, made in form of periscope, are provided with developed system of position regulators. Laser radiator is made in two modifications - with light flux expander and without it. Post of tested object moves smoothly between laser radiator and representation unit by means of electric motor 8 and lead thread 10 attached onto sliding bearing 6.

EFFECT: widened functional abilities; improved precision of adjustment; easier adjustment of radiators' and representation devices position; improved ergonomic quality.

4 cl, 3 dwg