Difference between digital microscope and traditional microscope
Traditional optical microscope is the use of optical principles, the human eye can not distinguish the tiny objects magnified imaging, for people to extract information on the microstructure of optical instruments.
Optical microscopes are generally composed of a stage, a spotlight illumination system, an objective lens, an eyepiece and a focusing mechanism. The stage is used to hold the object to be observed. The focusing knob can drive the focusing mechanism, so that the carrier stage for coarse and fine-tuning of the lifting movement, so that the object to be observed to focus clearly into the image. Its upper layer can be in the horizontal plane along for precision movement and rotation, generally the part being observed to the centre of the field of view.
Spotlight illumination system consists of a light source and a spotlight mirror, the function of the spotlight mirror is to make more light can be concentrated to the part being observed. The spectral characteristics of the illumination lamp must be compatible with the operating band of the microscope's receiver.
The objective lens is located near the object being observed and is the lens that achieves magnification. In the objective converter at the same time mounted several different magnification of the objective lens, turn the converter can let the different magnification of the objective lens into the working light path, the magnification of the objective lens is usually 5 to 100 times.
Objective lens is a microscope on the quality of the image plays a decisive role in the optical components. Commonly used for two colours of light to correct chromatic aberration achromatic objective; higher quality and can be corrected for three colours of light chromatic aberration compound achromatic objective; can ensure that the entire image surface of the objective lens for the plane, in order to improve the field of view edge of the imaging quality of the flat image field objective. High-magnification objective lens is mostly used in the immersion objective, that is, in the lower surface of the objective lens and the upper surface of the specimen piece of liquid filled with refractive index of 1.5 or so, it can significantly improve the resolution of microscopic observation.
Eyepiece is located near the human eye to achieve ** level of magnification of the lens, mirror magnification is usually 5 to 20 times. According to the size of the field of view that can be seen, eyepieces can be divided into a smaller field of view of the ordinary eyepieces, and the field of view of the larger large field of view eyepieces (or wide-angle eyepieces) two categories.
Carrier stage and objective lens both must be able to make relative movement along the direction of the optical axis of the objective lens in order to achieve focusing, to obtain a clear image.
Digital microscope is also called video microscope, it is the microscope to see the physical image through the digital-analogue conversion, so that its imaging on the computer. Digital microscope is a high-tech product developed and developed successfully by combining the elite optical microscope technology, advanced photoelectric conversion technology, and ordinary TV set** together. Thus, we can study the microscopic field from the traditional ordinary binocular observation to the reproduction on the monitor, which improves the work efficiency.
Digital microscope can produce orthogonal three-dimensional spatial image when observing objects. The three-dimensional sense is strong, the imaging is clear and wide, and has a long working distance, and is applicable to a very wide range of conventional microscopes. It is easy to operate, intuitive, high efficiency, applicable to the electronic industry production line inspection, printed circuit board verification, printed circuit components in the welding defects (printing misalignment, collapse edge, etc.) verification, single-board PC verification, vacuum fluorescent display VFD verification, etc., which will be enlarged after the image of the physical object is displayed on the screen of the computer, you can save the picture, zoom in, print. With measurement software can measure a variety of data.
