One of the core features of a variable lens is its variable magnification. Through ingenious optical design and mechanical structure, it is able to adjust the magnification continuously or segmentally within a certain range, thus meeting different observation and inspection needs. This adjustability makes a lens adaptable to a variety of work scenarios, greatly improving the versatility and practicality of the equipment.

The working principle of the zoom lens is based on the movement and combination of the lens group:

1、Through precise control of the relative position between different lens groups, the refraction and focusing of light is changed, thus realizing the change of magnification.

2、In order to ensure the quality and clarity of the image in the process of magnification, the zoom lens usually adopts high-quality optical glass and advanced coating technology, in order to reduce the scattering and reflection of the light, and improve the light transmission rate and imaging contrast.

In terms of application scenarios, zoom lenses are widely used in industrial inspection and quality control. For example:

① In the electronics manufacturing industry, it can be used to check the welding quality and dimensional accuracy of tiny electronic components;

② In automobile manufacturing, it can be used for detailed inspection of surface defects and assembly accuracy of components;

③ In the printing industry, the zoom lens can help detect the color, clarity and pattern accuracy of printed materials.

④ In biological research, it can assist in observing cell structure and microbial morphology;

⑤ In the medical field, it helps to perform fine operations in minimally invasive surgery and analyze pathological sections.

The zoom lens also offers high resolution and clarity. Even at high magnification, they present a detailed, clear and sharp image, which helps to detect small defects and abnormalities.

Its focusing speed and accuracy is also one of its advantages. Being able to focus quickly and accurately ensures that clear images can be obtained quickly at different magnifications, improving work efficiency.

With its variable magnification, excellent imaging quality, wide range of application scenarios and efficient work performance, the zoom lens has become an indispensable and important tool in industrial production, scientific research and medical treatment, playing an important role in improving the quality of production, promoting scientific progress and guaranteeing medical accuracy.