Telecentric laser beam optical focusing system of two diffractiv

Details Telecentric laser beam optical focusing system of two diffractiv Telecentric laser beam optical focusing system of two diffractiv

1997-06-26

1999-06-22

Spyrou, Cassandra

Optical: systems and elements

Diffraction

From zone plate

359569, 359663, G02B 2744

Patent

active

059148144

ABSTRACT:
A telecentric laser beam optical focusing system consists of two diffractive optical elements. The optical system has a spot size of less than one micron and a Strehl ratio of over 0.9 with a f
umber of one and a total object/image field of 0.5 micron.

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patent: 5610734 (1997-03-01), Aharoni et al.
G. J. Swanson, Binary Optics Technology: The Theory and Design of Multi-level Diffractive Optical Elements, Technical Report 854, Aug. 14, 1989.

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