Graded refractive index lens system

A graded refractive index (GRIN) lens that is compact and light in weight comprising two refracting surfaces having positive powers respectively, at least one refracting surface being formed aspherically, thereby enabling to have spherical aberration, coma, astigmatism, etc., well-corrected while se...

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Bibliographic Details
Main Author TAKADA; KATSUHIRO
Format Patent
LanguageEnglish
Published 20.09.1988
Edition4
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:A graded refractive index (GRIN) lens that is compact and light in weight comprising two refracting surfaces having positive powers respectively, at least one refracting surface being formed aspherically, thereby enabling to have spherical aberration, coma, astigmatism, etc., well-corrected while securing a sufficiently large working distance.
Bibliography:Application Number: US19870126921