The online digital rangefinder PMS-LM-1030 is a highly accurate and durable rangefinder device that works with a combination of advanced optical and electronic technologies to ensure stability and accuracy in a variety of application scenarios.

The PMS-LM-1030 rangefinder features a unique green LED and telecentric lens HL-CCD optical system. This design not only improves the speed and accuracy of measurements, but also makes the ranging process more stable and reliable.

1、Green LED light source：Green LED light illuminates the target as a single parallel ray. Compared to conventional light sources, green LEDs offer higher brightness and better stability, ensuring uniformity and consistency of light during measurements.

2、Telecentric Lens HL-CCD：The design of the telecentric lens allows the light to remain parallel as it passes through the lens, thus reducing measurement errors caused by lens distortion. At the same time, the HL-CCD (High Sensitivity Charge Coupled Device) is able to capture more information about the light, improving the accuracy and resolution of the measurement.

The measuring principle of the PMS-LM-1030 rangefinder is based on edge detection technology. When the green LED light hits the target object, it creates bright and dark areas on the CCD. By detecting the edges between these areas, the size or distance of the target object can be accurately determined.

1. Marginal detection：After the CCD sensor captures the light information, it is digitized. An algorithm analyzes the edges between the bright and dark areas and can pinpoint the location of the edges.

2. Calculation of measured values：Based on the position of the edge and known parameters of the optical system (e.g. lens focal length, angle of the light source, etc.), the size or distance to the target object can be calculated. This calculation process is performed by a built-in microprocessor, ensuring fast and accurate measurements.

The PMS-LM-1030 rangefinder utilizes a motorless structure, a design that not only simplifies the structure of the device, but also improves its stability and reliability. Meanwhile, the long-life green LED light source ensures the stability and accuracy of the device during long-time operation.