Last year marked the 100<sup>th</sup> anniversary of the death of Ernst Abbe, who passed away on January 14, 1906-just a few days short of his 65<sup>th</sup> birthday. In addition to his groundbreaking optical work, which includes his diffraction theory for image formation and the formulation of the sine condition and Abbe number, he was also a noted entrepreneur, astronomer and social reformer.
© 2007 Optical Society of America
(000.0000) General : General
Vol. 2, Iss. 3 Virtual Journal for Biomedical Optics
Barry R. Masters, "Ernst Abbe and the Foundation of Scientific Microscopes," Optics & Photonics News 18(2), 18-23 (2007)