Bio-photonics is a quickly growing field in the photonics industry.  OptoSigma's products are primarily focused on using laser light for such applications as illuminating flourescent markers to study the inner structures and functioning of cells, changing the expression of genes in cells, and counting and maniupulating small structures at the cell level or smaller.  Related products include manual and motorized systems for manipulating microscopic samples and modular microspy systems for building full microsocpe systems.