1984-03-12
1986-02-25
Punter, William H.
G02B 700
Patent
active
045726140
ABSTRACT:
A microscope condenser housing having an annular slit to receive filter slides, which during their insertion are arrested in two defined positions. A locking device effective against the outward motion of the filter slides and additionally locking the filter slides in at least one of the defined positions is provided. Incorrect inverted insertion of the filter slides is also prevented. The locking by the locking device is readily released manually by means of a locking lever projecting from the condenser housing.
REFERENCES:
patent: 2067189 (1937-01-01), Howell
patent: 2660926 (1953-12-01), Talley
patent: 3656841 (1972-04-01), Heinonen, Jr.
patent: 4050791 (1977-09-01), Watanabe
patent: 4407569 (1983-10-01), Piller et al.
Diehl Edwin
Lisfeld Robert
Ernst Leitz Wetzlar GmbH
Punter William H.
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