The technology innovation of green laser pointer is the improvement core

The reason is the eye itself as a condenser lens system, and depending on the incoming laser beam into the eye parallel to the axis, the recess in the central macular area focused to a small spot, the energy density higher than the cornea at 3 to 4 times , so the laser direct eye is very dangerous. Pigment organization very easy to absorb the laser energy, therefore the more pigment content, the degree of absorption of the laser intensity, the greater the degree of damage suffered. Eye tissue to absorb more than its own threshold energy after injury will hurt. More than by the more severe the injury. The quality group of laser pointer pen will analyze the quality problem centrally.
On the modulator with appropriate electrical power, usually laser power will decline, and then fine-tune the M1, M2 screws on the frame, as the laser power increased, if the cavity length of the right, then the laser cavity may have formed a lock mode oscillations. D1 observed with the receiver mode-locked laser pulse train. Value in the geometry near the cavity length changes the cavity length, carefully move the M1 mirror to observe the changes in mode-locked pulse, the cavity length to find the best clamping position, and draw mode-locked laser cavity length adjustment of the precision requirements. Pulse period and pulse width measurement, and compared with theory, analysis of error causes. Observed with a scanning laser interferometer output longitudinal mode spectrum, and compare the changes in the spectrum before and after clamping (longitudinal mode number, strength and stability), the scanning interferometer see the performance and use of experimental “He-Ne laser modes analysis “of the relevant sections.
Far-infrared laser (wavelength longer than 1900nm) on the eye cornea damage mainly in the main this is because almost all of these laser wavelengths absorbed by the cornea, so the most important injury to the cornea, the main cause keratitis and conjunctivitis. UV laser (wavelength between 315-400nm) are almost entirely absorbed by the eye’s lens, and COSCO (wavelengths shorter than 315nm) absorbed mainly by the cornea, which can cause the lens and corneal opacity. The extent of laser damage to the eyes in addition to the different laser wavelengths, but also with the laser light into the eyes of total energy, energy density and power density associated. The technology innovation of green laser pointer is the improvement core of the company.