It is becoming increasingly imperative to harness solar energy due to the ever growing shortage of conventional energy sources. The instant invention is concerned with method and apparatus for the stable alignment of mirrors inside transparent micro balls with the plane of the mirror perpendicular to the aligning electric field for solar energy concentration and related applications such as optical switches, etc. Coupling of an applied perpendicular electric field with the induced dipole in a mirrored ball results in an unstable orientation. The instant invention circumvents this problem so that a stable orientation is accomplished, resulting in an increase in the percentage of incident light that is reflected to the receiver. Broadly, this invention deals with novel concepts used for alignment in the focusing of light wherever mirrors are used for focusing such as for solar propulsion assist, illumination and projection of light, optical switching, etc. A particularly important objective is the focusing of sunlight for solar power conversion and production.