Sunday, December 23, 2012

Here will introduce the fabulous function of green laser pointer

Here will introduce the

fabulous function of green laser pointer .
KD * P crystal and external electric field, the refractive index ellipsoid equation is: only when the electric field in the KD * P crystal optical axis z direction above equation into a coordinate

transformation, can be obtained in the three induction spindle refractive index: type Ez under the action of KD * P into a biaxial crystal, the xy cross section of the index ellipsoid circle

becomes oval, the length of the axis of the ellipse x ', y' relative to the original optical axis. x, y, turn 45 °, angle size and the applied electric field is independent of the length of the

long and short axle that. Their size and Ez can be seen from the above equation into a linear relationship between the length of the shaft of the electric field reverse swap, as shown in Figure

2.5. green laser pointer is the best assistants for you to deliver a speech or hold a conference.Waveform as shown in the 400V threshold: the measurement of laser output energy and output pulse

width (plus a polarizer, and adjust the optical path). Threshold point measurement is completed, and then adjust the optical path, the output spot the best mediation input energy to 440V, connect

the oscilloscope pyroelectric probe (8mv/mj), and the common pulse probe measurements with pyroelectric probe energy with ordinary pulse probe measurement of the static laser pulse, the general

pulse is set to once per second. In the case of static output, adjusted the laser spot, one meter and two meters away from the laser output mirror, respectively, to accept a spot, were measured its

radius denoted by r1 and r2, divergence angle is denoted by beta. Figure 5.10 bubble g ear Adams Box Q-switch driver circuit. Steps. green laser pointer can discontinuously work for 2 months.
On a static basis, add a polarizer and KD * P crystals (such as the device map position) Mediation output mirror, the beam quality is best. Coupled at both ends of the crystal to crystal pressure,

about 3400V, while regulating the pressure of crystallization and the input voltage, small to large, every 20V, adjust the KD * P crystal level and pitch knob, with the probe pulse detection

waveform on the oscilloscope the pulse waveform tune did not, increase the voltage until the voltage is added to the waveform can not tune not so far. Note: the distance of the probe is not too

far, can not be too much oscilloscope volts / div. Steps: close after a good tune, on the retirement of rolling be adjusted so that the output of the laser energy reaches its maximum, the pulse

width of the narrowest. green laser pointer can be used as laser pens to point at the stars.

No comments:

Post a Comment