Binomial microscope

DETAILED DESCRIPTION What is to be claimed: 1.
A binomial microscope comprising an auxiliary objective lens and a pair of optical systems having substantially parallel optical axes and being arranged in the rear of said auxiliary objective, each of said optical systems including an objective lens, an erect prism and an ocular, wherein said optical system further includes means for moving the last said objective lens in a direction substantially parallel to said optical axis while maintaining the remaining optical elements in fixed positions.




Description:
This invention relates to an improved binomial microscope, and more specifically to an improved structure thereof.
There are two types of binomial microscopes, one having a pair of microscopes arranged to have their optical axes intersecting in the vicinity of the object, while the other is arranged to have parallel optical axes.
The former type has the disadvantage in that it is difficult to assemble though the parallax between the both eyes is unchanged even in case of repeating alternation of direct observation by the naked eyes and microscopic observation.
Contrarily, the latter one has the disadvantage that the observer is fatigued by the parallax between the both eyes varying between the both modes of observation, although it can be easily assembled.
Accordingly, an object of this invention is to provide an improved binomial microscope which can be easily assembled and also can form an observed image in the vicinity of the object to be observed.
This object can be attained in accordance with this invention by utilizing a microscope which comprises an auxiliary objective arranged in the rear of the object to be observed and a pair of optical systems having substantially parallel optical axes and being arranged in the rear of the auxiliary objective and the each optical system includes an objective, an erect prism, an ocular and an adjusting mechanism for moving the objective in a direction parallel to the optical axis