Optical sectioning microscopes with no moving parts using a micro-stripe array light emitting diode

Opt Express. 2007 Sep 3;15(18):11196-206. doi: 10.1364/oe.15.011196.

Abstract

We describe an optical sectioning microscopy system with no moving parts based on a micro-structured stripe-array light emitting diode (LED). By projecting arbitrary line or grid patterns onto the object, we are able to implement a variety of optical sectioning microscopy techniques such as grid-projection structured illumination and line scanning confocal microscopy, switching from one imaging technique to another without modifying the microscope setup. The micro-structured LED and driver are detailed and depth discrimination capabilities are measured and calculated.