Method of making an optical system

Details Method of making an optical system Method of making an optical system

2008-08-04

2010-06-01

Amari, Alessandro (Department: 2872)

Optical: systems and elements

Diffraction

From grating

C359S722000, C369S112080

Reexamination Certificate

active

07729051

ABSTRACT:
A method of making a plurality of micro-optical systems includes providing a plurality of diffractive optical elements and aligning each diffractive optical element with a refractive optical element. Each micro-optical system includes a refractive optical element and a diffractive optical element. The diffractive optical element provides different focal lengths at three different wavelengths for each micro-optical system and includes adjacent steps within a cycle having a difference of more the 2π for at least one of the three different wavelengths.

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