The aim of this paper is to present the robust design approach in micro optics. Not only functional requirements have to
be considered in robust design. All aspects of the manufacturing chain as well as operational and environmental effects
have to be accounted for in the design phase already. Two fundamental issues characterise this approach: ensuring
manufacturability and ensuring operability. The focus of this paper will be on the latter issue of ensuring the operability
of the produced subsystem. The approach will be discussed using a micro optical test case as an example.