How to buy a microscope?
When purchasing a microscope, first look at your needs. What functions do you need? There are different ways to purchase microscopes with different functions.
The selection of biological microscope eyepieces is based on the optical part, structural materials and light source. The optical part includes the eyepiece and the objective lens. The objective lens is the core part of the microscope. The objective lens is divided into three levels: achromat, semi-plan achromat and flat-field achromat. This type of objective lens is often used in medical professional fields.
The eyepieces in the biological microscope can be divided into monocular, binocular and trinocular. The price of monocular is cheap, and the binocular can be watched by both eyes at the same time. The extra eyepiece of the trinocular can be connected to a camera or a computer screen to display images. Both binocular Observation, but also the computer can record pictures.
In terms of structural materials, the durable alloy material is selected, and the structure is stable and strong. There are also three types of light sources, tungsten filament, halogen, and fluorescent. Tungsten filament lamps are the cheapest, but the yellow light affects observation. Fluorescent lamps are the best light source, with high brightness and power saving, but they are also the most expensive.
The purchase of a stereo microscope depends on several parameters: magnification, working distance, and zoom ratio. In addition, the level of the objective lens is the same as that of the biological microscope, and the plan achromatic objective lens is the best. The magnification of a stereo microscope is not as high as possible, and it needs to be determined in conjunction with the working distance. Generally, the objects observed by a stereo microscope are relatively large, and it is necessary to consider whether the object can fit into this working distance. The zoom ratio refers to the ability of the stereo microscope to change from low magnification to high magnification. For stereo microscopes, the zoom ratio is the most important parameter. The larger the zoom ratio, the higher the level of the stereo microscope.
Metallographic microscopes are mainly used to observe materials, so the quality of imaging is the key when choosing. The imaging must meet the four conditions of high contrast, high resolution, high brightness, and good color reproduction. It is wrong to blindly pursue resolution. . As an industrial microscope, the performance and durability of the microscope must also be considered from the perspective of mechanical material, manufacturing precision and designed mechanical structure.
