Can 532nm laser Pointers hurt people's eyes?
Powerful high powered laser beams damage the eyes and skin. Low penetration laser designators perform well in laser energy density. However, there is no absolute relationship between laser wavelength and transmittance. Of all visible lasers, long-wavelength laser Pointers are more transparent than short-wavelength ones. But the long wavelength infrared laser is affected by heat and the transmission intensity is weak. CO2 lasers can carve glass, but 532nm green lasers cannot. Short - range laser radiation damage is the corresponding long - range damage. If the laser has the same parallelism, the high power laser with different wavelength has different focal length. For example, the focal length limit of a 1064 nm infrared laser is 20 times that of a 532 nm green laser. In other words, a 532 nm green laser is 20 times stronger per unit area than a 1064 nm infrared laser with the same output power. In general, long wavelength lasers have a larger focal length than low power lasers.
Tags
Light Source
They typically emit beams of 473 nm. It is produced by doubling the emission frequency of the 946 nm laser from diode-pumped Nd:YAG or Nd:YVO4 crystals (Nd-doped crystals typically produce a primary wavelength of 1064 nm, but the correct reflection. Coated mirrors can also be used to manufacture lasers with other "higher harmonic" wavelengths other than the main neodymium wavelength. For high power BBO crystals used as frequency doubler, for low power. KTP. In 2006, the daily chemical industry dominated 80% of the blue laser diode market. Have 593.5nm yellow laser Pointers hit the market in recent years? Based on the DPSS process, in this case, two Nd laser lines (YVO4, 1064nm and 1342nm) are added to the nonlinear crystal. Due to the complexity of the process, these laser Pointers are inherently unstable and inefficient. The power spectrum ranges from 1 mW to about 10 mW and varies greatly with temperature. For hot or cold temperatures, it is usually in jump mode. This is because complex processes may require temperature ballasts and active cooling that cannot be installed on small mainframes.
2021-11-03 09:44:49
Your Answer: