Inclinometer comprises an illumination unit, a position detector, and a two dimensional focussing or switching unit

摘要

Inclinometer, comprises illumination unit, two dimensional optoelectronic position detector, and two dimensional focussing or switching unit. The latter has transparent or reflecting cover and/or base layer, of which at least one is arched, and contains unmixed liquids of different densities. The focussing or switching unit operates variable illumination unit.