Apparatus for simultaneous adjustment of the position and apertu

Details Apparatus for simultaneous adjustment of the position and apertu Apparatus for simultaneous adjustment of the position and apertu

1977-06-15

1979-09-04

Henry, Jon W.

G02B 2108

Patent

active

041666712

ABSTRACT:
An apparatus for varying the position of a field stop with respect to a microscope substage illuminator includes a carrier for slidably mounting the field stop on the illuminator so as to move in a direction transverse to the optical axis of the illuminator. An annular element controlling the aperture of the field stop is pivotally mounted within the carrier and is coupled to a knurled ring projecting radially and upwardly from the diaphragm carrier. The knurled ring is in turn pivoted within the diaphragm carrier and preferably carries a circular line inscribed thereon which is concentric with the field stop in order to facilitate adjustment of the field stop.

REFERENCES:
patent: 663650 (1900-12-01), Zirngibl
patent: 863805 (1907-08-01), Ott
patent: 3161717 (1964-12-01), Barabas et al.
patent: 3740121 (1973-06-01), Everett
patent: 3922699 (1975-11-01), Yamaki

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