Optical arrangement with diffractive optical element

Details Optical arrangement with diffractive optical element Optical arrangement with diffractive optical element

1997-12-15

1999-08-17

Spyrou, Cassandra

Optical: systems and elements

Diffraction

From zone plate

359570, 359739, G02B 2744, G02B 900

Patent

active

059402148

ABSTRACT:
An optical arrangement including a stop, and an optical element with a diffractive optical surface, wherein the diffractive optical surface is defined on a spherical surface of a curvature radius r, and wherein, where the distance from a point on the diffractive optical surface, which is on an optical axis, to a center of the stop as viewed from the diffractive optical surface is t, a relation 0.8.ltoreq.r/t.ltoreq.1.2 is satisfied.

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