Wide field eyepiece lens system

Details Wide field eyepiece lens system Wide field eyepiece lens system

1992-04-03

1993-07-13

Arnold, Bruce Y.

Optical: systems and elements

Lens

Eyepiece

359643, G02B 2500

Patent

active

052279189

ABSTRACT:
An eyepiece lens system comprising, in the order from the side of incidence of rays, a first lens unit having positive or negative refractive power as a whole and a second lens unit having positive refractive power as a whole, said eyepiece lens system having little aberrations, image surface flatness excellent to the marginal portions of visual field, a high eye point and a wide visual field.

REFERENCES:
patent: 4268128 (1981-05-01), Uetake et al.

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