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CO2 F-Theta Scan lens selection guide
Posted on:
2021-04-28
CO2 F-Theta Scan lens, also called lens, lens, field lens, objective lens, etc. It mainly plays a focusing role on laser marking machine, laser coding machine, laser engraving machine, laser engraving machine and other equipment. as follows:
We also have certain rules when choosing CO2 F-Theta Scan lens according to the selection of conventional laser marking machines (laser engraving machines, laser coding machines, laser engraving machines, etc.), as follows:
According to the type of laser selected, this is selected according to the selected laser wavelength:
1. 1064nm wavelength lens;
2. 532nm green wavelength lens (450nm blue wavelength lens is not commonly used);
3. 355nm ultraviolet wavelength lens (266nm deep ultraviolet wavelength lens is not commonly used);
The above 3 types are conventional solid-state laser lenses.
4. CO2 F-Theta Scan lens with 10.6μm wavelength;
5. CO2 F-Theta Scan lens with 10.2μm wavelength;
6. 9.3μm wavelength CO2 F-Theta Scan lens;
The above 3 kinds are lenses for conventional gas lasers.
Conventional CO2 lasers generally choose a single lens group, and only those with special technology can choose a double lens group and a three-lens group. Conventional solid-state lasers generally choose a double lens group, and those with a special technology can choose a three-lens group.
Based on the above, we can actually define the CO2 F-Theta Scan lens:
The CO2 F-Theta Scan lens is a kind of focal flatness object that has been designed to satisfy a certain relationship between the pixel height and the scanning angle, and has a certain linear relationship with the scanning angle.
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