Ocular lens system

Details Ocular lens system Ocular lens system

1990-06-27

1992-11-10

Sugarman, Scott J.

Optical: systems and elements

Lens

Eyepiece

359644, 359645, 359715, 359716, 359717, G02B 906, G02B 912, G02B 934, G02B 1318

Patent

active

051629453

ABSTRACT:
An ocular system is disclosed which is composed of at least three lens elements for constituting, in order from the eye side, at least first and second lens units. At least one of the lens elements is made of resin. Two of the lens elements are substantially cemented together. In addition, an aspherical plastic lens is effectively used in the system.

REFERENCES:
patent: 3862796 (1975-01-01), De Jager
patent: 4593984 (1986-06-01), Kimura et al.
patent: 4673262 (1987-06-01), Tsuji

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