Blue laser pointer in daily life
When Charles Hardtowns and Arthur Leonard (Bell Laboratories) applied for a patent in 1958, the original name of the high powered laser was "optical maser." They focused on infrared light, but switched the focus to visible light. A graduate student named Gordon Gould at Columbia University was also writing a thesis. When Towns and Gould met, they discussed the radiation emitted. In 1958, Gould published the paper "laser, stimulated emission light amplification", coining the term laser. In recent history, technology is evolving at an alarming rate. From advances in the age of computers and the Internet, to aerospace and space exploration technologies, to breakthroughs in life-saving medicine. Not only for products that we can use as everyday citizens of the earth. For example, take a laser pointer. When cheap red keychain lasers that are not bright and have no real visible range become the norm, now anyone can use high-power laser technology in a convenient and portable handheld form.
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Since then, the green laser pointer has become a part of daily life. From optical drives and computer systems to communication networks, to visual displays for stadiums and performances. This is a very short list. Some items we use every day benefit from laser technology, and if lasers are not developed, some items will not exist. You might be surprised to know. The range and visibility of the laser depends on several different factors. The first is the output power (mW), and the second is the color of the laser. Both are important factors that determine how far you can see the laser beam. Generally, a green laser is about 7 times brighter than any other color laser at the same power. At the same power, green is usually the most suitable.
2021-12-24 08:50:21
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