Patent
1972-11-20
1976-01-06
Rubin, David H.
G02B 2108
Patent
active
039307123
ABSTRACT:
A sub-stage, dual-turret assembly provides a rapid interchange of condensers and birefringent elements without sub-stage assembly, disturbance of illumination system, refocusing the microscope or dislocation of the object being studied and minimizes storage problems normally associated with maintaining convenient access to a selection of interchangeable delicate optical elements. The assembly has an upper turret normally adapted to carry at least two condensers and a lower turret usually adapted to carry a plurality of birefringent elements. The two turrets are independently rotatable in order to provide maximum versatility.
REFERENCES:
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patent: 2264835 (1941-12-01), Flint
patent: 2266797 (1941-12-01), Peck et al.
patent: 2427689 (1947-09-01), Osterberg et al.
patent: 2484972 (1949-10-01), Turrettini
patent: 2565419 (1951-08-01), Aitcheson
patent: 2977848 (1961-04-01), Malfeld
patent: 3572889 (1971-03-01), Bloomfield
Boughton Olin W.
Schultz Richard
American Optical Corporation
Nealon William C.
Rubin David H.
Spencer Alan H.
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