Negative abbe number radial gradient index relay and use of same

Details Negative abbe number radial gradient index relay and use of same Negative abbe number radial gradient index relay and use of same

1993-01-28

1994-11-01

Kwon, John T.

Optical: systems and elements

Lens

With graded refractive index

G01B 302

Patent

active

053611667

ABSTRACT:
Radial gradient index of refraction (GRIN) optical relays are described for overcorrecting axial chromatic aberration. In particular, a relay including a negative dispersion radial GRIN rod alone or in combination with simple homogeneous or GRIN lenses is described for adjusting axial chromatic and monochromatic aberrations, including spherical, coma, astigmatism, and distortion. The invention also describes remote viewing scopes, such as endoscopes and borescopes, which utilize GRIN relays for achromatic, and reduced or corrected monochromatic aberration imaging The use of segmented GRIN relays provides a degree of flexibility in remote viewing scopes.

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patent: 5182672 (1993-01-01), Mukai et al.
Refractive Index and Spectral Models for Gradient-Index Materials: Stephen D. Fantone.
Model for the Chromatic Properties of Gradient-Index Glass: Danette P. Ryan-Howard and Duncan T. Moore.
Gradient-index Optical Systems in Holographic Endoscopy G. von Vally, et al.
Correction of Chromatic Aberrations in GRIN Endoscopes: Dennis C. Leiner and Rochelle Prescott.
Development of New Gradient Index Glasses for Optical-Imaging Systems: Douglas Scott Kindred.
Design, Engineering, and Manufacturing Aspects of Gradient Index Optical Components: Stephen D. Fantone.

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