Patent
1977-05-13
1980-04-01
Henry, Jon W.
350 39, G02B 2122
Patent
active
041959035
ABSTRACT:
Binocular microscope having a pair of converging optical paths, each including a magnification changing optical device which comprises two or more lens groups. The lens groups are rotatably mounted on the lens housing so that they can be alternately brought into alignment with the optical path for changing the magnification power.
REFERENCES:
patent: 198195 (1877-12-01), Finch
patent: 409927 (1889-08-01), Clements
patent: 1622350 (1927-03-01), Sabel
patent: 2791937 (1957-05-01), Leitz et al.
Kawase Suminosuke
Nishimura Shin'ichi
Uchiumi Yoshihisa
Henry Jon W.
Tokyo Kagaku Kikai Kabushiki Kaisha
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