Green Laser Pointer Has Undertaken The Repeated Experiments And Testing

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Fluorine atoms and hydrogen atoms, such as chemical reactions, can generate hydrogen fluoride molecules in the excited state. Thus, when the two gases mix quickly to be able to produce the laser, so no other energy can be obtained directly from the chemical reaction is very strong light. These lasers are more suitable for field work, or for military purposes, it is fear of death ray weapon is a result of application of chemical lasers. In today's lasers, and some are made with the semiconductor.50mW green laser pointer has no harm or damage to the human body. High myopia with posterior staphyloma persons; 2 average initial preoperative central corneal curvature less than or greater than 47D 39D should be careful; 3 dark light, the pupil diameter greater than 7mm; 4. Contralateral eye as legal blindness; 5.2 years, suffered from herpes simplex keratitis; 6 mild cataracts; 7 has a history of retinal detachment and macular hemorrhage; 8 mild dry eye; 9 mild blepharophimosis dysraphism; 10 patients with suspected ...
... glaucoma ; 11 menstrual period and pregnancy; 12 physical scars; 13 diabetes; 14 with a fever and other physical discomfort; 15 epilepsy; 16 anxiety disorders, depression, and those who expect too much of the surgery. 1917: Albert Einstein that "stimulated emission" theory, a photon makes the excited atoms emit an identical photon. 1953: American physicist Charles Townes microwave lasers to achieve a predecessor: microwave amplification by stimulated emission (English acronym maser). 1957: Townes's doctoral student Gordon Gould created the "laser" This word, from the theory that the excited atom can be used up to produce a bunch of coherent light beam, after it applied for its patent-related legal disputes lasted nearly 30 years. green laser pointer has undertaken the repeated experiments and testing.

1960: California, USA Hughes Laboratory Theodore Maiman achieved the first laser beam. 1961: Laser surgery for the first time in the retina to kill the tumor. 1962: invention of semiconductor diode lasers, which is the backbone of today's small commercial lasers. 1969: Laser remote sensing survey for the laser was fired at the Apollo 11 reflector on the lunar surface, measured in Earth-Moon distance error within a few meters. 1971: 100mW green laser pointer into the art world, for stage lighting effects, and laser holographic camera. Hungarian-born British-born physicist Dennis Gabor holographic camera with the study of the Nobel Prize. 1974: The first supermarket bar code scanner appears. 1975: IBM launch the first commercial laser printer machine. 1978: Philips to create the first laser disc (LD) player, but the price is high. 1982: The first compact disc (CD) player there, the first CD set is an American singer Billy Joel's 1978 album 52nd Street. 1983: President Reagan issued a "Star Wars" speech, painted a space-based laser weapons. green laser pointeradopts reliable information protection technology and electronic devices of high performance. 1988: North America and Europe, set up between the first optical fiber, light pulses to transmit data. 1990: The laser used in the manufacturing industry, including integrated circuits and automobile manufacturing. 1991: the first laser treatment of myopia, the first Gulf War with a laser-guided missiles. 1996: Toshiba digital versatile disc (DVD) player. 2008: France guide widely used by scientists outside the nerve fiber laser and minimally invasive surgical treatment of a brain tumor. 2010: The U.S. National Nuclear Security Administration (NNSA) said that by using the 192 laser beams to materials bound fusion reaction, hydrogen isotopes deuterium (mass number 2) and tritium (mass 3), to solve the fusion of a The key difficulty. 200mW green Laser Pointer has the side application range. 
Early ruby laser is used as the excitation source common source. Now the production of ruby laser has developed many new products, categories also increased. In addition, incentives, also divided into several, in addition to optical excitation, there are discharge excitation, thermal excitation, and chemical and other incentives.