Turret condenser for microscopes

Details Turret condenser for microscopes Turret condenser for microscopes

1980-11-10

1983-01-18

Corbin, John K.

350526, G02B 2114

Patent

active

043689477

ABSTRACT:
A turret condenser for microscopes comprising a turret, an aperture stop, a stop ring for opening and stopping down the aperture stop, a cam fixed to the turret, a lever means having one end in contact with the cam and the other end having a through hole formed therein, and a spring having one end fixed to the stop ring and the other end carrying a retaining piece fixed thereto, the spring passing through the through hole formed in the lever means, the turret condenser for microscopes being arranged so that the stop ring always keeps the stop fully opened by means of the force of the spring when the turret is in the position of phase contrast microscopy.

REFERENCES:
patent: 2264835 (1941-12-01), Flint
patent: 2427689 (1947-09-01), Osterberg et al.
patent: 2565419 (1951-08-01), Aitcheson
patent: 3161717 (1964-12-01), Barabas et al.
patent: 3679287 (1972-07-01), Takahashi et al.
patent: 3930712 (1976-01-01), Boughton et al.
patent: 4136927 (1979-01-01), Lisfeld
patent: 4166671 (1979-09-01), Lisfeld et al.

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