What are the classifications of magnifying glasses

Summary: The elderly due to the gradual deterioration of vision, so when reading books or newspapers will not see clearly, this time will use the magnifier to help reading. This magnifier is generally handheld magnifier, in addition, there are many types of magnifiers, such as desktop magnifiers, outdoor portable magnifiers, professional identification and measurement magnifiers and so on. In addition to help reading magnifier can also be used in the electronics industry for the inspection of various operations, sculpture and appreciation of works of art, etc., the following and Xiaobian together to understand the relevant knowledge. Classification of magnifiers

1, according to the appearance of classification

Can be divided into portable magnifiers and desktop magnifiers.

2, according to the use of crowd classification

Can be divided into the elderly reading magnifying glass, children's magnifying glass, outdoor portable magnifying glass, professional identification and measurement magnifying glass.

Magnifier use

1, the electronic industry, the operation of the inspection, processing, installation and repair.

2, beauty industry, facial skin, pores observation, manicure, ear picking, etc..

3, sculpture and appreciation of works of art.

4, Inspection and repair of cameras, clocks and watches, etc.

5, usually people read when used, especially for the elderly, students and other reading in the dim light.

6, dentists, tailors, embroidery and other work.

7, finance, taxation, philately, jewelry, printing, agriculture and other product characteristics.

How to determine the magnifying power

Method 1

Place the magnifying glass on the paper with a grid, count the number of grids within the scope of the magnifying glass (A), and then raise the magnifying glass until the grids are enlarged to the maximum, the most clear, count the number of grids within the scope of the magnifying glass (B).A divided by B is the magnifying power of the magnifying glass.

Method 2

Use a ruler to measure the side length of the square (A), and then raise the magnifying glass until the grid is enlarged to the maximum, the clearest, the ruler will be resting on the magnifying glass to measure the side length of the grid is enlarged (B). B divided by A is the magnifying glass magnification.