DEVICE FOR TRAINING PERSPECTIVE Russian patent published in 2006 - IPC G09B23/04 

FIELD: engineering of training devices, possible use for drawing and demonstrating spatial projection in linear perspective of flat shapes lying in object plane, in particular, a circle, as appropriate shapes on drawing plane.

SUBSTANCE: in accordance to invention, on the base imitating the object plane of projections, mounted are transparent plane and telescopic post with spherical joint on the end, imitating point of view of linear perspective. Mounted in object plane is joint, in which crank is affixed by one end, on free end of which crank twin slider is mounted with spherical joint with writing or bypass pin. In twin slider mounted by one end is executive telescopic device with spring-loaded telescopic writing unit abutting against the drawing plane.

EFFECT: increased didactic capabilities.

1 dwg