Infinity microscope imaging principle:
The object is imaged at infinity through the infinity objective lens
(that is, the light emitted from the specimen is parallel light after passing through the objective lens, and cannot be imaged.
At this time, a positive lens needs to be added to focus the image under the eyepiece.
This positive lens is the tube lens.
Large manufacturers have different focal lengths of tube mirrors according to design needs, conventional 180mm, 200mm, 210mm, 250mm, etc.
Olympus uses 180mm tube mirrors).
The tube lens is divided into two types:
180mm focal length and 200mm focal length,
both of which are 2-piece glued parts,
which are suitable for microscopes with infinity system, such as Olympus UIS2 infinity optical system,
and can also be used for domestic infinity microscopes (Tube lens 180mm),
it must be used with the corresponding 180mm infinity objective lens,
and the focal length of 200mm can be used with our metallographic objective lens.

Package Includes: 1pc lens,

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