Patent ID: 6844936

Claim:
Device for non-contacting measurement of an object to be measured comprising: at least one light source for emitting coherent light; optical devices for splitting the light into object light for interacting with the object to be measured and reference light and for superimposing the object light and reference light following an interaction of the object light with the object to be measured, and a detecting device for converting the reference light and the object light into electrical signals suitable for further processing, wherein the detecting device has at least two series-connected optoelectronic transducers, and a tap for tapping a signal for further processing being provided between the transducers, and wherein a multistage temperature stabilizing device is provided for stabilizing the temperature of the light source, the multistage temperature stabilizing device comprising a thermostatted, first stabilizing unit connected in heat-conducting manner to the light source and a least one thermostatted, second stabilizing unit connected in heat-conducting manner to the first stabilizing unit.