Binocular stereomicroscope
A binocular stereo microscope, also known as a "solid microscope" or "dissecting microscope," is a visual instrument with a sense of stereopsis. Widely used in the fields of biology and medicine for slicing operations and microsurgery; Used in industry for observation, assembly, inspection, and other work of small parts and integrated circuits. It has the following characteristics:
(1) By using a dual channel optical path, the left and right beams in the binocular tube are not parallel, but have a certain angle - volumetric angle (usually 12 degrees to 15 degrees), providing a three-dimensional image for the left and right eyes. It is essentially two single tube microscopes placed side by side, with the optical axes of the two tubes forming the perspective formed by people observing an object with their binoculars, thus forming a three-dimensional visual image.
(2) Elephants are upright and easy to operate and dissect, due to the prism below the eyepiece reversing the elephant.
(3) Although the magnification is not as good as conventional microscopes, their working distance is very long.
(4) The depth of focus is large, making it easy to observe the entire layer of the object being tested.
(5) The diameter of the field of view is large.
At present, the optical structure of a stereo microscope is composed of a shared primary objective, which separates the two beams of light imaged by two sets of intermediate objective lenses - zoom lenses - and forms a unified viewing angle before being imaged by their respective eyepieces. Its magnification change is obtained by changing the distance between the intermediate lens groups, so it is also known as a "Zoom stereo microscope". With the requirements of applications, currently stereo lenses can be equipped with a variety of optional accessories, such as fluorescence, photography, photography, cold light sources, and so on.
