1989-05-30
1990-10-23
Bovernick, Rodney B.
G02B 300
Patent
active
049647032
ABSTRACT:
An image-forming lens having a primary surface defined by a spherical surface and located on the side of an object when the lens is used to provide negative magnification, a secondary surface defined by a flat plane and located on the side of an image, the lens having therein a refractive index distribution exhibiting a substantially spherical symmetry with its center located in the vicinity of the highest point of the primary surface located most distantly from the secondary surface when measured perpendicularly from the secondary surface.
REFERENCES:
patent: 3486808 (1969-12-01), Hamblen
patent: 3626194 (1971-12-01), Hirano
patent: 3729253 (1973-04-01), Moore
patent: 4027952 (1977-06-01), Hugues
patent: 4415238 (1983-11-01), Braat
patent: 4449792 (1984-05-01), Arai
patent: 4457590 (1984-07-01), Moore
patent: 4557566 (1985-12-01), Kikuchi
patent: 4571034 (1986-02-01), Nakamura
patent: 4634233 (1987-01-01), Usami
patent: 4643535 (1987-02-01), Ichikawa et al.
patent: 4647159 (1987-03-01), Baba
patent: 4657352 (1987-04-01), Suda et al.
patent: 4674843 (1987-06-01), Baba et al.
patent: 4696552 (1987-09-01), Hattori et al.
patent: 4721369 (1988-01-01), Hattori
Yamamoto, et al., Selfoc Microlens with a Spherical Surface, vol. 1, No. 6, Applied Optics (Mar. 15, 1982).
Hattori Jun
Suda Shigeyuki
Bovernick Rodney B.
Canon Kabushiki Kaishi
Gass Rebecca D.
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