What is the magnification principle of continuous magnification lens?

     The zoom lens can achieve the principle of continuous zoom, in fact, by changing the interval between the lens groups to change the focal length of the entire objective lens, when the moving lens changes the focal length, it is always accompanied by the movement of the image surface, which should be compensated for the movement of the image surface. According to the numerical relation between the displacement of the variable magnification group and the compensation group, the compensation curve is calculated, and the CAM mechanism is designed to compensate the movement of the image plane. By rotating the barrel of the CAM curve groove, the goal of continuously changing the magnification and keeping the position of the image plane unchanged was realized.

Continuous zoom lens features:

1. The use of coaxial fall-off lighting, infinite parallel light incidence, more uniform distribution, can achieve shadow-free lighting.

2. No need to change the working distance, just fine-tune the structure can be clearly focused, compact structure design, can be applied to narrow detection space.

3. Low distortion, high resolution design, can achieve large field of view observation.

The zoom lens does not need to change the position of the product, and can change the field of view and the size of the product imaging through its own adjustment. It has the versatility and is widely used in scientific research, microelectronics, high-precision detection and other fields.