The aim of the project was to design the housing for a motion detector for commercial office buildings. It is a 3.0 inch circle and the body is no more than 1.0 inch thick. The edges are sweep out to with a nice curve back to the ceiling surface. It will mount to a standard t-bar ceiling grid. (the kind of ceiling with the drop in tiles) It can be mounted in the corner of a light fixture with a portion of the "top" or up facing side exposed to the light fixture and has a window on the top that looks up at the light... (for a light sensor).The mounting method could be a small piece of spring steel or plastic.
I have created this design for a client based in Taylorsville, United States (Mr. TD).