Microscope objective lens selection method
Microscope to provide customers with a rich variety of functions of the objective lens to choose, the following gives you a brief introduction to the different types of microscopes according to how to choose the objective lens.
First of all, the objective lens of microscope can be divided into PLN (flat-field achromatic), UPLFLN (universal half achromatic) and UPLSAPO (universal complex achromatic) three kinds of benchmark types, there are also special corresponds to the phase contrast (PLN-PH, UPLFLN-PH) and corresponds to the polarisation (PLN-P, UPLFLN-P) of the objective lens to choose, and corresponds to the observation of the inverted microscope there are with the long working distance objectives (LUCPLFLN, CPLFLN) and so on.
The basic parameters describing the objective lens include magnification, numerical aperture (N/A), working distance (WD), and field of view (F.N.), which may vary for different types of objectives with the same magnification.
Overall optical microscopes have some of the following observation modes:
BF: Bright Field, DF: Dark Field, PH: Phase Difference, PO: Polarisation, DIC: Differential Interference, FL: Fluorescence Observation (Blue, Green, Violet, etc.), UVFL (Ultraviolet Fluorescence Observation). And different objective lens types are suitable for some of these observations respectively. For example, the PLN (F.N.=22) type of objective lens can correspond to the following observation methods:
In addition to the objective lens itself, the microscope objective lens and the overall optical system of different types of microscopes can be reasonably matched to achieve the observation effect as well as the price ratio of the product **.
