{"id":5071,"date":"2026-03-02T09:21:54","date_gmt":"2026-03-02T00:21:54","guid":{"rendered":"https:\/\/agus.co.jp\/en\/?p=5071"},"modified":"2026-03-02T09:22:12","modified_gmt":"2026-03-02T00:22:12","slug":"introduction-to-commonly-used-laser-application-technologies","status":"publish","type":"post","link":"https:\/\/agus.co.jp\/en\/?p=5071","title":{"rendered":"Introduction to commonly used laser application technologies!"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic1-1024x576.jpg\" alt=\"\" class=\"wp-image-5072\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic1-1024x576.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic1-300x169.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic1-768x432.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic1-1536x864.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic1.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u2018What are lasers used for?\u2019 And what kind of light is it in the first place?\u2019<\/p>\n\n\n\n<p>In fact, lasers are used in familiar objects.<\/p>\n\n\n\n<p>So in this article, you will learn the basics about lasers and how they are used in society.<\/p>\n\n\n\n<p>Later in the article, the history and etymology of the word laser is also discussed.<\/p>\n\n\n\n<p>Let&#8217;s take a look at it.<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">A laser is a light that meets certain requirements.<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic2-1024x768.jpg\" alt=\"\" class=\"wp-image-5073\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic2-1024x768.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic2-300x225.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic2-768x576.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic2-1536x1152.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic2.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Light rays in prism. Ray rainbow spectrum dispersion optical effect in glass prism. Educational physics vector background. Illustration of prism spectrum light and rainbow refraction<\/figcaption><\/figure>\n\n\n\n<p>A laser is simply a light that travels in a straight line and has a constant wavelength.<\/p>\n\n\n\n<p>You might think that all light travels in a straight line. However, the properties of laser and other types of light are slightly different.<\/p>\n\n\n\n<p>In familiar terms, it would be the difference between a laser pointer and the image of a room light.<\/p>\n\n\n\n<p>A laser pointer emits a red light that travels straight ahead, whereas a room light emits light radially to illuminate the whole room.<\/p>\n\n\n\n<p>To get a little more technical, lasers have the following characteristics.<\/p>\n\n\n\n<p>\u30fbSingle wavelength.<\/p>\n\n\n\n<p>\u30fbDirectional and straight forward.<\/p>\n\n\n\n<p>\u30fbPhase-aligned and hypercoherent.<\/p>\n\n\n\n<p>\u30fbHigh concentration of energy<\/p>\n\n\n\n<p>Although laser technology appears difficult at first glance, it is actually used in familiar places.<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">How is laser application technology used in society?<\/h2>\n\n\n\n<p>Laser technology has many applications in society.<\/p>\n\n\n\n<p>For example, \u2018barcode readers\u2019, \u2018Blu-ray recorders\u2019 and \u2018LASIK surgery\u2019.<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Barcode readers used in warehouses, etc.<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"661\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic3-1024x661.jpg\" alt=\"\" class=\"wp-image-5074\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic3-1024x661.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic3-300x194.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic3-768x496.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic3-1536x992.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic3.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Laser technology is also often used in barcode readers used for stock control in warehouses.<\/p>\n\n\n\n<p>In fact, the mechanism differs from the barcode readers in supermarket checkouts, with the \u2018CCD method\u2019 generally used in checkouts and the \u2018laser method\u2019 mainly used in stand-alone barcode readers used in warehouses.<\/p>\n\n\n\n<p>The CCD system has a high reading speed, while the laser system can read a wide range of barcode labels and objects at a distance.<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Blu-ray\/DVD players, games consoles, etc.<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"367\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic4-1024x367.jpg\" alt=\"\" class=\"wp-image-5075\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic4-1024x367.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic4-300x107.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic4-768x275.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic4-1536x550.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic4.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Laser technology is also used in Blu-ray, DVD and games consoles such as PS5.<\/p>\n\n\n\n<p>The information stored on the disc is read using laser technology.<\/p>\n\n\n\n<p>CDs use infrared lasers, DVDs use red lasers and Blu-rays use blue lasers.<\/p>\n\n\n\n<p>Blue has a shorter wavelength and as a result it can read more information.<\/p>\n\n\n\n<p>As an aside, film works and laser technology have had a very long association, as in the past there was a video medium called \u2018laser disc\u2019 and more recently laser technology has been used in \u2018IMAX\u2019 cinema.<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">LASIK<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic5-1024x682.jpg\" alt=\"\" class=\"wp-image-5076\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic5-1024x682.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic5-300x200.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic5-768x512.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic5-1536x1023.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic5.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Lasers are also used in LASIK, an eye surgery.<\/p>\n\n\n\n<p>LASIK surgery is mainly performed as a treatment for people with myopia, and laser light is used to thin out the cornea..<\/p>\n\n\n\n<p>So lasers are also contributing to the medical sector.<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">laser marker<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic6-1024x683.jpeg\" alt=\"\" class=\"wp-image-5077\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic6-1024x683.jpeg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic6-300x200.jpeg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic6-768x512.jpeg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic6.jpeg 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>As the name suggests, laser markers are devices that can print using a laser.<\/p>\n\n\n\n<p>Some familiar items include boxes of sweets, ballpoint pens with names and engraving on phone cases, where laser markers are also used.<\/p>\n\n\n\n<p>A decade ago, they were also used for digging in videotapes (VHS).<\/p>\n\n\n\n<p>Depending on the type of laser marker, there are different methods such as \u2018print surface peeling\u2019, \u2018surface layer peeling\u2019 and \u2018colouring\u2019, which allow printing on a variety of materials such as paper, wood, plastic and leather.<\/p>\n\n\n\n<p>These laser markers also have a wide range of uses, including welding and cutting applications, depending on the type.<\/p>\n\n\n\n<p>Recently, some 3D printers have a laser module attached to them, and some 3D printers can be used for \u2018laser engraving\u2019.<\/p>\n\n\n\n<p>*Most 3D printers are not capable of cutting.<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">History of lasers<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic7-1024x768.jpg\" alt=\"\" class=\"wp-image-5078\" srcset=\"https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic7-1024x768.jpg 1024w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic7-300x225.jpg 300w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic7-768x576.jpg 768w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic7-1536x1152.jpg 1536w, https:\/\/agus.co.jp\/en\/wp-content\/uploads\/2026\/03\/pic7.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The foundations of laser technology date back to 1917.<\/p>\n\n\n\n<p>There is a phenomenon called \u2018induced emission\u2019, which is the basis of laser operation, and it was discovered by that \u2018Einstein\u2019.<\/p>\n\n\n\n<p>After several inventions and theorizations, the name \u2018laser\u2019 was given in 1959.<\/p>\n\n\n\n<p>In fact, laser is an abbreviation.<\/p>\n\n\n\n<p>\u30fbLight<\/p>\n\n\n\n<p>\u30fbAmplification by<\/p>\n\n\n\n<p>\u30fbStimulated<\/p>\n\n\n\n<p>\u30fbEmission of<\/p>\n\n\n\n<p>\u30fbRadiation<\/p>\n\n\n\n<p>The name actually has a meaning.<\/p>\n\n\n\n<p>The following year, in 1960, practical laser prototypes were built, leading to today&#8217;s laser technology.<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Summary<\/h2>\n\n\n\n<p>In this article, we talked about lasers.<\/p>\n\n\n\n<p>Finally, let&#8217;s summarize.<\/p>\n\n\n\n<p>Laser is light that meets certain requirements.<\/p>\n\n\n\n<p>Lasers are used in \u2018some barcode readers\u2019, \u2018Blu-ray recorders\u2019, \u2018LASIK surgery\u2019 and \u2018laser markers\u2019.<\/p>\n\n\n\n<p>LASIK has been a practical technology in development since 1960.<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>References site<\/p>\n\n\n\n<p><a aria-label=\"undefined (opens in a new tab)\" href=\"https:\/\/www.keyence.co.jp\/ss\/products\/marker\/lasermarker\/basics\/principle.jsp\" target=\"_blank\" rel=\"noreferrer noopener\">\u30ec\u30fc\u30b6\u30fc\u3068\u306f\uff1f\u539f\u7406\u30fb\u7279\u6027\u3092\u89e3\u8aac | \u57fa\u790e\u77e5\u8b58 | \u30de\u30fc\u30ad\u30f3\u30b0\u5b66\u7fd2\u587e | \u30ad\u30fc\u30a8\u30f3\u30b9<\/a><br><a aria-label=\"undefined (opens in a new tab)\" href=\"https:\/\/www.ulsinc.com\/ja\/%E5%AD%A6%E3%81%B6\" target=\"_blank\" rel=\"noreferrer noopener\">\u30ec\u30fc\u30b6\u30fc\u3068\u306f\uff1f | \u30ec\u30fc\u30b6\u30fc\u6280\u8853\u306f\u3069\u306e\u3088\u3046\u306b\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u304b\uff1f ja-us<\/a><br><a aria-label=\"undefined (opens in a new tab)\" href=\"https:\/\/www.youtube.com\/watch?v=WP12tLIzBbU\" target=\"_blank\" rel=\"noreferrer noopener\">\u30ec\u30fc\u30b6\u30fc\u3068\u306f\u4f55\u304b\u2015\u305d\u306e\u57fa\u790e\u3068\u5fdc\u7528\u2015<\/a><br><a aria-label=\"undefined (opens in a new tab)\" href=\"https:\/\/www.ulsinc.com\/ja\/%E5%AD%A6%E3%81%B6\/%E3%83%AC%E3%83%BC%E3%82%B6%E3%83%BC-%E3%81%AE-%E6%AD%B4%E5%8F%B2\" target=\"_blank\" rel=\"noreferrer noopener\">\u30ec\u30fc\u30b6\u30fc\u6280\u8853\u306e\u6b74\u53f2 | \u30ec\u30fc\u30b6\u30fc\u52a0\u5de5 ja-us<\/a><br><a aria-label=\"undefined (opens in a new tab)\" href=\"https:\/\/www.denso-wave.com\/ja\/adcd\/fundamental\/barcode\/scan\/index.html\" target=\"_blank\" rel=\"noreferrer noopener\">\u30d0\u30fc\u30b3\u30fc\u30c9\u30b9\u30ad\u30e3\u30f3\u306e\u3057\u304f\u307f\uff5c\u81ea\u52d5\u8a8d\u8b58\u306e\u6280\u8853\u60c5\u5831<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u2018What are lasers used for?\u2019 And what kind of light is it in the first place[\u3082\u3063\u3068\u8aad\u307e\u305b\u3066\u301c]<\/p>\n","protected":false},"author":1,"featured_media":5072,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[58],"tags":[],"class_list":["post-5071","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Introduction to commonly used laser application technologies! | SUGA Co., Ltd.<\/title>\n<meta name=\"description\" content=\"\u2018What are lasers used for?\u2019 And what kind of light is it in the first place?\u2019\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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