Structural principles, features and applications of the stereomicroscope
A stereo microscope may also be called: a solid microscope or an operating and dissecting microscope. It is a visual instrument with a positive stereoscopic image.
Its optical structure is based on the principle of a common primary objective lens, the two beams of light after imaging the object is separated by two groups of intermediate objective lenses, also known as zoom lenses, and composed of a certain angle known as the body view angle is generally 12 degrees - 15 degrees, and then by their respective eyepieces imaging, its magnification change is obtained by changing the distance between the intermediate mirror group, the use of dual-channel light path, binocular barrels in the left and right beams are not parallel but have a certain angle, providing a stereoscopic image for the left and right eyes. It is essentially two single-cylinder microscopes placed side by side, the optical axis of the two cylinders constitute the equivalent of people with binocular observation of an object formed by the angle of view, so as to form a three-dimensional space of the three-dimensional visual image.
Characterised by: a large field of view diameter, focal depth so that it is easy to observe the entire level of the object being detected; although the magnification is not as good as conventional microscopes, but its working distance is very long; like an upright, easy to operate, this is due to the prism under the eyepiece to the image of the inversion of the sake of.
According to the actual use of the requirements of the current stereomicroscope can be equipped with a wealth of optional accessories, such as if you want to get a greater magnification can be equipped with higher magnification eyepieces and auxiliary objectives, through a variety of digital interfaces and digital cameras, cameras, electronic eyepieces and image analysis software to form a digital imaging system access to the computer for analysis and processing, the illumination system is also reflected light, transmitted light illumination, the light source has a halogen light The light source has halogen lamp, ring light, fluorescent lamp, cold light source and so on.
According to these optical principles and characteristics of the stereomicroscope determines its wide range of applications in industrial production and scientific research. For example, it is used for section operation and microsurgery in biological and medical fields; it is used for observation, assembly and inspection of tiny parts and integrated circuits in industry.
