Kaleidoscope

Kaleidoscope

Kaleidoscope

Kaleidoscope

Kaleidoscope and image material assembly for kaleidoscope

Kaleidoscopic apparatus

Kaleidoscopic projector

Kaliedoscope for attaching with a video monitor

Kaliedoscope for attaching with a video monitor

Keystone correction derived from the parameters of projectors

Keystone correction derived from the parameters of projectors

Keystone correction derived from the parameters of projectors

Keystone correction system and method

Keystone correction system and method

Keystone correction using a part of edges of a screen

Keystone distortion correction of a projector

Keystone distortion correction system for use in multimedia...

Keystoning and focus correction for an overhead projector