Object lens system

Details Object lens system Object lens system

1999-03-08

2000-06-20

Epps, Georgia

Optical: systems and elements

Lens

With graded refractive index

359652, 359719, G02B 900, G02B 302

Patent

active

060784318

ABSTRACT:
A rod lens made of a transparent cylindrical medium having a refractive index distribution in the radial direction is used as a graded index lens. An object surface and an image surface are arranged on both sides of the rod lens. A first surface of the lens is a convex spherical surface, and a second surface of the lens is a planar surface, and the lens is arranged so that the convex spherical surface faces the object surface, and the planar surface faces an image surface. The equations

REFERENCES:
patent: 4647159 (1987-03-01), Baba
patent: 4668055 (1987-05-01), Nishi et al.
patent: 4684221 (1987-08-01), Takada
Nishi et al., "Gradient--index objective lens for the compact disk system", Applied Optics, vol. 25, No. 19, Oct. 1, 1986, pp. 3340-3345. XP002106460.
Ishikawa et al. "Marked low-loss coupling of laser diode to single mode fiber by a plan--convex graded--index rod lens", Internationa Conference on Integrated Optics and Optical FibreCommincation (100C) and European Conference on Optical Communication (ECOC), Venice, Oct. 1-4, 1985, vol. 1, No. conf. 5, 11, Oct. 1, 1985, pp. 637-640. XP000040185.
Handbooks for Microoptics, First Edition, first printing, Jun. 20, 1995, ISBN 4-254-21024-8, partial translation.

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