{"id":522,"date":"2016-02-02T20:11:40","date_gmt":"2016-02-02T20:11:40","guid":{"rendered":"http:\/\/bacimirrors.com\/?page_id=522"},"modified":"2016-08-19T18:06:52","modified_gmt":"2016-08-19T18:06:52","slug":"magnification-mirror-101","status":"publish","type":"page","link":"https:\/\/bacimirrors.com\/?page_id=522","title":{"rendered":"Mirror Magnification 101"},"content":{"rendered":"<div id=\"cs-content\" class=\"cs-content\"><div id=\"x-section-1\" class=\"x-section\" style=\"margin: -50px 0px 0px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 0px;\" >\n\t\t\t<!-- START baci logo REVOLUTION SLIDER 6.5.8 --><p class=\"rs-p-wp-fix\"><\/p>\n\t\t\t<rs-module-wrap id=\"rev_slider_9_1_wrapper\" data-source=\"gallery\" style=\"visibility:hidden;background:transparent;padding:0;margin:0px 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'rev_slider_9_1',rl:[1240,1024,778,480],el:[],gw:[1240],gh:[130],type:'hero',justify:'',layout:'fullwidth',mh:\"0\"});if (window.RS_MODULES!==undefined && window.RS_MODULES.modules!==undefined && window.RS_MODULES.modules[\"revslider91\"]!==undefined) {window.RS_MODULES.modules[\"revslider91\"].once = false;window.revapi9 = undefined;if (window.RS_MODULES.checkMinimal!==undefined) window.RS_MODULES.checkMinimal()}\n\t\t\t\t<\/script>\n\t\t\t<\/rs-module-wrap>\n\t\t\t<!-- END REVOLUTION SLIDER -->\n<\/div><\/div><\/div><div id=\"x-section-2\" class=\"x-section\" style=\"margin: 0px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 0px 0px 20px;\" ><div id=\"\" class=\"x-text\" style=\"\" ><h3 style=\"text-align: center;\">Mirror Magnification 101.<\/h3>\n<\/div><\/div><\/div><\/div><div id=\"x-section-3\" class=\"x-section\" style=\"margin: -80px 0px 0px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 0px;\" ><div id=\"\" class=\"x-text\" style=\"\" ><h4 style=\"text-align: center;\"><span style=\"color: #808080;\">How do magnifying mirrors work \u2013 the easy stuff?<\/span><\/h4>\n<\/div><\/div><\/div><\/div><div id=\"x-section-4\" class=\"x-section\" style=\"margin: -80px 0px 0px;padding: 0 px 0px 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 30px auto 0px;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 5px 20px 20px; background-color:#757575;\" ><div id=\"\" class=\"x-text\" style=\"\" ><h5 class=\"p1\"><span style=\"color: #ffffff;\">1) The simple explanation is that because the curvature of the mirror reflects light at an angle the\u00a0reflected image is magnified.<\/span><br \/>\n<span style=\"color: #ffffff;\"> 2) The complex explanation is that there is a lot of physics and math behind the magnification.<\/span><\/h5>\n<\/div><\/div><\/div><\/div><div id=\"x-section-5\" class=\"x-section\" style=\"margin: -80px 0px 0px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 0px;\" ><div id=\"\" class=\"x-text\" style=\"\" ><h4 style=\"text-align: center;\"><span style=\"color: #808080;\">Let\u2019s look at some simple points first.<\/span><\/h4>\n<\/div><\/div><\/div><\/div><div id=\"x-section-6\" class=\"x-section\" style=\"margin: 0px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 0px;\" ><div id=\"\" class=\"x-text\" style=\"\" ><p>1) The amount of magnification is determined by two factors;<br \/>\na. The curvature of the glass \u2013 for any given mirror this is a fixed number and doesn\u2019t\u00a0change.<br \/>\nb. The distance of the user from the mirror, which, of course, is variable.<br \/>\nSkipping the\u00a0details for the moment \u2013 up to a point, the further away the user gets from the mirror\u00a0the larger the image.<\/p>\n<p class=\"p1\">2) Magnifying mirrors are rated for their power of magnification based on how much bigger they\u00a0make an object look. A plain flat mirror would be rated at 1X and one that makes an object 3\u00a0times larger would be rated at 3X. For make\u2010up and shaving mirrors the most common ratings\u00a0are 3X, 5X, 7X and 10X. There is a formula for the magnification but, unfortunately, it is not\u00a0always applied correctly.<\/p>\n<p class=\"p1\">3) For most users a 3X or a 5X mirror works very well. Perhaps if the user\u2019s vision is declining a bit\u00a0or if they are doing very detailed work a 7X mirror would be appropriate. In a pocket size\u00a0compact or other small diameter mirror a 10X magnifier works but in a larger mirror the image\u00a0becomes less useful as you look further away from the center of the reflection.<\/p>\n<p class=\"p1\">4) A poorer quality mirror may show some distortion or waviness that will affect its usefulness.<\/p>\n<p class=\"p1\">5) Because its surface is harder and not as easily damaged a glass mirror will provide longer life\u00a0than a plastic mirror and most metal mirrors.<\/p>\n<p class=\"p1\">6) Any mirror should be cleaned carefully. For glass mirrors use a soft, damp cloth and, if\u00a0necessary a little mild detergent or glass cleaner (like Windex). Never use abrasives or scouring\u00a0pads. Remember that some of the finishes on other parts of the mirror are not as damage\u00a0resistant as glass and treat them accordingly. For plastic or other mirror materials refer to the\u00a0manufacturer\u2019s directions.<\/p>\n<p class=\"p1\">The simple summary is that a 3X or 5X mirror should work well for most people. When choosing a\u00a0mirror, check the quality of the reflection and then decide if the magnification meets your needs. Once\u00a0you have a mirror follow the manufacturer\u2019s instructions for cleaning and maintaining it.<\/p>\n<\/div><\/div><\/div><\/div><div id=\"x-section-7\" class=\"x-section\" style=\"margin: -80px 0px 0px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 20px auto 0px;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 0px;\" ><div id=\"\" class=\"x-text\" style=\"\" ><h4 class=\"p1\" style=\"text-align: center;\"><span style=\"color: #808080;\">How do magnifying mirrors work \u2013 the technical stuff?<\/span><\/h4>\n<\/div><\/div><\/div><\/div><div id=\"x-section-8\" class=\"x-section\" style=\"margin: 0px 0px 40px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 0px;\" ><div id=\"\" class=\"x-text\" style=\"\" ><p class=\"p1\">1) Mirrors function according to the laws of physics \u2013 in this case the laws of reflection.<\/p>\n<p class=\"p1\">2) Ray diagrams are a useful way to help understand how these laws work in magnifying mirrors.\u00a0Basically they track the path of two light rays as they pass through specific points and are\u00a0reflected from the face of the mirror. In the following diagram we are concerned with 3 points,\u00a0the center of curvature, the focal point and the top of an object. Our two light rays behave as\u00a0follows:<br \/>\na. Ray 1 originates at the center of curvature, passes through the top of the object and is\u00a0reflected back through the center of curvature \u2013 but we perceive it as passing on\u00a0through the glass in a straight line.<br \/>\nb. Ray 2 originates at the focal point, passes through the top of the object and is reflected\u00a0back parallel to the axis of curvature \u2013 but we perceive it as passing through the glass in\u00a0line with this reflection.<br \/>\nc. The two lines intersect at a point behind the mirror which is the top of the image. The\u00a0bottom of the image is a point on the axis directly below the top of the image. Because\u00a0it\u2019s on the back side of the mirror where you can\u2019t actually see it it\u2019s called a virtual\u00a0image<\/p>\n<p class=\"p1\">3) So let\u2019s look at a ray diagram. First let\u2019s define some of the variables<br \/>\na. R is the radius of the curved surface of the glass<br \/>\nb. F is the focal distance of the mirror \u2013 it is 1\/2 of the radius of curvature<br \/>\nc. H<sub>0<\/sub> is the height of the object we\u2019re reflecting<br \/>\nd. D<sub>0<\/sub> is the distance of the object from the center of the mirror<br \/>\ne. H<sub>1<\/sub> is the height of its reflection<br \/>\nf. D<sub>1<\/sub> is the distance of the reflection from the face of the mirror<br \/>\ng. M is the magnification of the mirror<br \/>\nh. R, F, H<sub>0<\/sub> D<sub>0<\/sub> are either known or can be fairly easily measured<br \/>\ni. H<sub>1<\/sub> and D<sub>1<\/sub> need to be calculated and once we know them there\u2019s a simple equation for M<\/p>\n<\/div><\/div><\/div><\/div><div id=\"x-section-9\" class=\"x-section cs-ta-center\" style=\"margin: 0px 0px 0px 60px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 0px;\" ><img  class=\"x-img x-img-none\"  src=\"http:\/\/bacimirrors.com\/wp-content\/uploads\/2016\/08\/Magnifying-Mirror-Diagram5.jpg\" ><\/div><\/div><\/div><div id=\"x-section-10\" class=\"x-section\" style=\"margin: -80px 0px 0px;padding: 0px; background-color: transparent;\" ><div id=\"x-section-11\" class=\"x-section\" style=\"margin: 60px 0px 0px;padding: 0px; background-color: transparent;\" ><\/div><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 0px;\" ><div id=\"\" class=\"x-text\" style=\"\" ><div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<p class=\"p1\">Next let\u2019s look at the equations for this mirror.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><div id=\"x-section-12\" class=\"x-section\" style=\"margin: 0px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-3\" style=\"padding: 0px;\" ><div id=\"\" class=\"x-text\" style=\"\" ><div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<p class=\"p1\">\n<p class=\"p1\">j. The mirror equation<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div><div  class=\"x-column x-sm x-2-3\" style=\"padding: 0px;\" ><img  class=\"x-img x-img-none\"  src=\"http:\/\/bacimirrors.com\/wp-content\/uploads\/2016\/08\/Magnifying-Mirror-Equation2A.jpg\" ><\/div><\/div><\/div><div id=\"x-section-13\" class=\"x-section\" style=\"margin: 0px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-3\" style=\"padding: 0px;\" ><div id=\"\" class=\"x-text\" style=\"\" ><div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<p class=\"p2\">k. The magnification equation<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div><div  class=\"x-column x-sm x-2-3\" style=\"padding: 0px;\" ><img  class=\"x-img x-img-none\"  src=\"http:\/\/bacimirrors.com\/wp-content\/uploads\/2016\/08\/Magnifying-Mirror-Equation2B.jpg\" ><\/div><\/div><\/div><div id=\"x-section-14\" class=\"x-section\" style=\"margin: 0px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 0px;\" ><div id=\"\" class=\"x-text\" style=\"\" ><div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<div id=\"pu3759\" class=\"clearfix colelem\">\n<div id=\"u3759-bw\" class=\"browser_width grpelem\">\n<div id=\"u3759\">\n<div id=\"u3759_align_to_page\" class=\"clearfix\">\n<div id=\"u3826-4\" class=\"clearfix grpelem\">\n<p class=\"p1\">2) Using some high school algebra you can arrive at the data for this table (dimensions are in millimeters and numbers have been rounded)<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><div id=\"x-section-15\" class=\"x-section\" style=\"margin: 0px 80px;padding: 0px; background-color: transparent;\" ><div id=\"\" class=\"x-container max width\" style=\"margin: 0px auto;padding: 0px;\" ><div  class=\"x-column x-sm x-1-1\" style=\"padding: 0px;\" ><img  class=\"x-img x-img-none\"  src=\"http:\/\/bacimirrors.com\/wp-content\/uploads\/2016\/08\/Magnifying-Mirror-Chart4.jpg\" ><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-blank-1.php","meta":[],"_links":{"self":[{"href":"https:\/\/bacimirrors.com\/index.php?rest_route=\/wp\/v2\/pages\/522"}],"collection":[{"href":"https:\/\/bacimirrors.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bacimirrors.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bacimirrors.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/bacimirrors.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=522"}],"version-history":[{"count":34,"href":"https:\/\/bacimirrors.com\/index.php?rest_route=\/wp\/v2\/pages\/522\/revisions"}],"predecessor-version":[{"id":827,"href":"https:\/\/bacimirrors.com\/index.php?rest_route=\/wp\/v2\/pages\/522\/revisions\/827"}],"wp:attachment":[{"href":"https:\/\/bacimirrors.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}