It is the production way the factory adopts to manufacture laser pointer

It is the production way the factory adopts to manufacture laser pointer .
Faro, Photon, series with more than 10 megapixel professional digital SLR cameras, coloring, to the laser point cloud to increase the visual effect of the laser point cloud can produce three-dimensional images of objects. External cameras, digital cameras are easy to upgrade and replacement, according to the distance of the object is scanned, you can choose to use the lenses of different focal lengths. Pixels high, luminous flux, high resolution, lens distortion, and show good results, with quantitative measurement accuracy. The other more high-end professional SLR cameras (Nikon, Canon brand), not only to increase the visual effect of the laser point cloud, also capable of producing orthophotos and 3D models of the topography, buildings, objects, color texture.  laser pointer  is much better. 
We know that when the light hit the object the higher the object reflectivity, the reflected optical signal is more, the higher the intensity, so the range of the laser scanner farther. However, most of the ground, reflections from buildings was 40% - 50%, most of the reflection of trees was 30% - 70%, coal and asphalt pavement between 15% and 25%, so practical applications, we have to discount a maximum range of the device. Products for different companies, because they are based on the basis of reflectance, the discount rate. Buildings scanning, for example, the Riegl scanner, fight tickets, Riegl 3D laser scanner model LMS-Z210ii. The assembly method of laser pointer matters a lot too.This kind of laser pointer has the red green type of laser pointer
The maximum scanning distance (reflection rate of 80%) of 600 meters; practical applications: architectural objects or topography scan or mines are 360 meters. Riegl 3D laser scanner model LMS-Z390i: maximum scanning distance (reflection rate of 80%) of 400 meters; practical applications: architectural objects or topography scan, or 240 meters of the mines are. Riegl 3D laser scanner model LMS-Z420i: maximum scanning distance (reflection rate of 80%) of 1,000 meters; practical applications: architectural objects or topography scan or mining application 600 meters. Riegl 3D laser scanner model LMS-Z620: maximum scanning distance (reflection rate of 80%) of 2,000 meters; practical applications: architectural objects or topography scan or mines are 1,200 meters.  As to what type or model of laser scanner, should be based on specific requirements, choose a different laser scanner.