Light sheet microscopy was first developed in 1902.
It has been used in biological imaging since in 2003.
Light sheet microscopes exist in many flavors; each are tailored to address a particular biological challenge (e.g. sample size, spatial resolution, imaging depth).
Light sheet microscopy provides improved signal-to-noise, lower photobleaching, and lower phototoxicity than conventional widefield, confocal or two-photon techniques.