Apparatus for parfocalizing objectives

Details Apparatus for parfocalizing objectives Apparatus for parfocalizing objectives

1976-02-17

1977-05-24

Bauer, Edward S.

G02B 702

Patent

active

040251713

ABSTRACT:
An objective, for use with an optical instrument such as a microscope, includes a housing formed of two generally tubular shaped members, one of which is coaxially and slidably mounted within the other. The objective also includes a rotatable member supported on the side of the outer of the two tubular members. An eccentric provided on the end of the rotatable member cooperates wih a surface of a slot formed on the side of the inner of the two tubular members. By rotating the eccentric, the inner tubular member is coaxially moved relative to the outer tubular member to thereby provide an easy and extremely accurate method of parfocalizing the objective. A locking mechanism is also provided to insure that the parfocality of the objective is not disrupted once it has been set.

REFERENCES:
patent: 2116704 (1938-05-01), Laube et al.
patent: 3058391 (1962-10-01), Leupold

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