miscellaneous articles click to hear : miscellaneous articles

Verschiedenes click to hear : Verschiedenes

miscellaneous articles image

overhead projector click to hear : overhead projector

Tageslichtprojektor click to hear : Tageslichtprojektor

optical stage click to hear : optical stage

Glasplatte click to hear : Glasplatte

optical lens click to hear : optical lens

Objektiv click to hear : Objektiv

projection head click to hear : projection head

Projektionskopf click to hear : Projektionskopf

mirror click to hear : mirror

Spiegel click to hear : Spiegel