Patent
1984-08-29
1987-01-06
Corbin, John K.
G02B 300, G02B 600
Patent
active
046342338
ABSTRACT:
In collimating the light beam from a light source by the use of a refractive index distribution type lens the refractive index of which on the optic axis is n.sub.0 and the refractive index n(r) of which at a position spaced by r from the optic axis is represented by
REFERENCES:
Paxton et al, "Aberrations and Design of Graded-Index (GRIN) Rods Used as Image Relays", Applied Optics, vol. 10, No. 9, 9/1971, pp. 2090-2096.
Kikuchi et al, "Graded-Index Sphere Lens with Hemispherical Rod Cladding", Applied Optics, vol. 21, No. 15, 8/1982, pp. 2734-2738.
Tokuhara Mitsuhiro
Usami Akihiro
Canon Kabushiki Kaisha
Corbin John K.
Gass Rebecca D.
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