Abstract: A projection device can include: an illuminating unit for emitting light; and a projection unit having a mirror surface, the projection unit being designed to project the light emitted by the illuminating device by means of the mirror surface into an object space and to shape it into different spatially structured light patterns in the object space. The projection device is distinguished in that the mirror surface is deformable, at least in regions, and in that the projection unit, for forming the different spatially structured light patterns in the object space, has at least one actuator for deforming the mirror surface, at least in regions. The present subject matter furthermore relates to a projection method, to a device, and to a method for detecting a three-dimensional contour.

Abstract: An ion-sensitive field effect transistor has a gate consisting of metal silicate. The gate of metal silicate provides high resistance to aggressive measured substances and further has a high long-term stability. The gate of the ion-sensitive field effect transistor may include a single layer gate, wherein the gate is arranged directly on the channel region.