The difference between laser scanner and blue light scanner

There are significant differences between laser scanners and blue light scanners in multiple aspects. The following is a detailed comparison between the two:

1、 Measurement principle

Laser scanner: The laser scanner uses a rotating motor to drive a multi-faceted prism to reflect and form a scanning beam. When the beam hits the workpiece, if the workpiece blocks the light, the measured size can be obtained through electronic signal processing. It mainly uses line scanning method.

Blue light scanner: A blue light scanner uses specific wavelengths of blue light as the scanning light source to produce granular images on the scanned object. Blue light scanners typically use structured light, also known as surface scanning.

2、 Applicable objects and accuracy

Laser scanner: Laser scanners are suitable for scanning large and medium-sized parts with high accuracy, but may perform slightly worse on certain feature rich workpieces compared to blue light scanners.

Blue light scanner: Blue light scanners are more suitable for scanning small and medium-sized parts, with very high accuracy, especially when processing workpieces with rich features, the scanning effect is better.

3、 Scanning speed

Laser scanner: Although laser scanners have higher accuracy, their scanning speed may be slightly inferior to blue light scanners.

Blue light scanner: The scanning speed of a blue light scanner is very fast, especially when processing small and medium-sized parts, which can significantly improve scanning efficiency.

4、 Usage scenarios

Laser scanner: Laser scanners can be installed on production lines to form instruments for simultaneous production and inspection. They are widely used in detection processes in fields such as railways, automobile manufacturing, precision mechanical parts, and electronic components.

Blue light scanner: Blue light scanners are more commonly used in fields such as reverse design, inspection, 3D printing, data backup, etc., especially for rapid inspection of castings to improve inspection efficiency and save the usage rate of high-precision coordinate measuring machines.

5、 Other characteristics

Laser scanner: The laser scanner has the characteristic of non-contact measurement, which can perform online detection without stopping the machine, and is equipped with automatic alarm and feedback control functions.

Blue light scanner: Blue light scanners have very strict requirements for light and are usually used in high-definition large instruments. It can convert all colors into visible light images through the light band and utilize the fast propagation speed of blue light in the air to complete color conversion.

In summary, there are significant differences between laser scanners and blue light scanners in terms of measurement principles, applicable objects and accuracy, scanning speed, usage scenarios, and other characteristics. Users should choose the appropriate scanner type based on their specific needs.