Patent
1983-10-27
1986-01-21
Corbin, John K.
350518, G02B 2126
Patent
active
045654271
ABSTRACT:
The invention contemplates provision of an additional selectively adjustable transmission mechanism, in the coupling of a microscope stage to focusing mechanism within the microscope stand. In the disclosed embodiment, the stage is mounted to a stage carrier (7) which is guided in the stand, and the additional transmission is provided between the stage carrier and the output rack (5) of the primary rack-and-pinion coupling of the focusing mechanism for the stage. The focusing mechanism is of the coaxial coarse-fine variety, with output to the pinion (4) of the coupling. In the additional transmission, an eccentric (11) is journaled for selective rotation in the stage carrier (7), the rack (5) of the coupling has an independent vertical guidance relation (9) with the stage carrier (7), and the rack (5) and eccentric (11) coact to establish instantaneous relative elevation of the stage (6) with respect to the rack (5). Adjustment-knob control of the eccentric enables a short cycle of stage displacement, through selective stage-carrier elevation, independent of instantaneous coarse-fine focusing adjustment.
REFERENCES:
patent: 3180161 (1965-04-01), Wasner
patent: 3895770 (1975-07-01), Yoshida et al.
patent: 3997239 (1976-12-01), Scherzer
Schilling Albert
Schob Wolfgang
Ben Loha
Carl-Zeiss-Stiftung
Corbin John K.
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