The stipulation of working instruction of green laser pointer

Computing, high-speed, large amount of information transmission, laser applications in the field of information storage, large capacity, high-density information storage become possible, as described in the textbook DVD is actually a magnetic media to store data, it can be dual layer double-sided, the run time of up to 484 min, the storage capacity of VCD several times or even several times, with up to 17GB. At present, the laser has become an important strategic weapons in the field of defense and military applications, such as laser ranging, laser radar, laser-guided, laser simulation technology. The dispatcher added 2 more workers to the night shift of led flash light .
Laser weapons, blinding laser weapons, laser interference weapons, laser anti-aircraft weapons, these weapons of modern warfare had a profound influence on the laser-guided bombs can quickly hit the target accurately. Ignite the nuclear fuel is a major topic of research scientists from various countries compete with a laser, is expected around 2010 with a laser to achieve fusion, the energy crisis is expected to be the fundamental solution. Teacher: the students before class to do a lot of preparation, reading a lot of relevant information, and certainly have a good harvest. I collected some of the video and laser data, please take a look at. The group leader is presenting the drawing of green laser pointer through the projector.
Through the learning of this lesson, we understand the characteristics and applications of the laser. Know that the laser is an artificially produced by coherent light, with a high degree of coherence, the use of this feature of the laser can be used in optical fiber communication, holographic; parallel to the laser is very good, able to accurately measure the distance and speed; laser The brightness is very high, can be used to control nuclear fusion, used as a "knife" in the medical surgery. Complete the P80, and practice the subject. Way of thinking is to solve the problem of the soul, is the fundamental of physics teaching; hands-participation in the knowledge discovery process is the key to fostering students' abilities to leave the ways of thinking and practice, physics teaching has become a river without water, without trees . The worker will operate as per the stipulation of working instruction of green laser pointer .
The training of student quality has become a Flower in the Mirror, in the water. Laser holographic photo film records the interference fringes of light, containing all the information of the subject reflected light, three-dimensional photo if the camera when the subject was blocking part of, by adjusting the line of sight can still see block part; photo was cut in half, and can still see the object from the half on, the photos only as an observation of the object window. The Holography use the good nature of the laser coherence. The inspector issued the qualification report for green laser pointer .
The power consumption of a pulsed laser for 2 × 103 W per second output 10 light pulses, each pulse duration of 10-8 s, to carry the energy of 0.2 J, the power of each pulse of 2 × 107W The laser converts electrical energy efficiency of the laser energy of 10-3. The targeted launch a very short laser pulse, measured transmit pulse and receive echo time interval, we can calculate the distance to the target, which is the use of directional laser. If measured by a laser pulse and received echo time interval of 0.1 s, can be obtained from the target of 1.5 × 107m. The workshop has the strict procedure of manufacturing green laser pointer .