Diffractive optical element and optical system having the same

Details Diffractive optical element and optical system having the same Diffractive optical element and optical system having the same

1998-08-06

2000-09-19

Spyrou, Cassandra

Optical: systems and elements

Diffraction

From grating

359569, G02B 518

Patent

active

06122104&

ABSTRACT:
In a diffractive optical element, which is formed by laminating at least three layers of diffraction gratings made of at least three kinds of materials which differ in dispersion, at least three design wavelengths are set.

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M.W. Farn, et al., "Diffractive Doublet Corrected On-Axis at Two Wavelengths," Proceedings of the SPIE: International Lens Design Conference, vol. 1354, Jun. 11-14, 1990, pp. 24-29.
Y. Arieli, et al., "Design of a Diffractive Optical Element for Wide Spectral Bandwidth," Optical Letters, vol. 23, No. 11, Jun. 1, 1998, pp. 823-824.
C. Londono, et al., "The Design of Achromatized Hybrid Diffractive Lens Systems," Proceedings of the SPIE: International Lens Design Conference, vol. 1354 (Jun. 11-14, 1990), pp. 30-37.

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