{"id":10407,"date":"2022-09-18T08:47:11","date_gmt":"2022-09-18T08:47:11","guid":{"rendered":"https:\/\/www.szlaser.com\/?page_id=10407"},"modified":"2022-09-19T02:00:38","modified_gmt":"2022-09-19T02:00:38","slug":"visible-defects-in-optical-elements","status":"publish","type":"page","link":"https:\/\/www.szlaser.com\/index.php\/wiki\/visible-defects-in-optical-elements\/","title":{"rendered":"Illustrations of Visible Defects in Optical Elements"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1331.2px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-one\"><h1 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:32;line-height:1.3;\"><h1>Illustrations of Visible Defects in Optical Elements<\/h1><\/h1><\/div><div class=\"fusion-text fusion-text-1\"><p>This images below depict various defects in substrates and coatings that can be visually observed.<\/p>\n<h3>Chip on the edge of a doublet lens:<\/h3>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10409\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Chip-on-the-edge-of-a-doublet-lens--600x511.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Chip-on-the-edge-of-a-doublet-lens--600x511.png\" alt=\"\" width=\"600\" height=\"511\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27511%27%20viewBox%3D%270%200%20600%20511%27%3E%3Crect%20width%3D%27600%27%20height%3D%27511%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Chip-on-the-edge-of-a-doublet-lens--200x170.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Chip-on-the-edge-of-a-doublet-lens--300x255.png 300w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Chip-on-the-edge-of-a-doublet-lens--400x340.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Chip-on-the-edge-of-a-doublet-lens--600x511.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Chip-on-the-edge-of-a-doublet-lens--768x654.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Chip-on-the-edge-of-a-doublet-lens--800x681.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Chip-on-the-edge-of-a-doublet-lens-.png 833w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>Peeling at the center of a coating, and a breakage:<\/h3>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10410\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating-600x378.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating-600x378.png\" alt=\"\" width=\"600\" height=\"378\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27378%27%20viewBox%3D%270%200%20600%20378%27%3E%3Crect%20width%3D%27600%27%20height%3D%27378%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating-200x126.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating-300x189.png 300w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating-320x202.png 320w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating-400x252.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating-600x378.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating-700x441.png 700w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating-768x484.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating-800x505.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating-1024x646.png 1024w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-at-the-center-of-a-coating.png 1110w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>Crack on the edge of a singlet lens:<\/h3>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10411\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-on-the-edge-600x653.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-on-the-edge-600x653.png\" alt=\"\" width=\"600\" height=\"653\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27653%27%20viewBox%3D%270%200%20600%20653%27%3E%3Crect%20width%3D%27600%27%20height%3D%27653%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-on-the-edge-200x218.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-on-the-edge-276x300.png 276w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-on-the-edge-400x435.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-on-the-edge-600x653.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-on-the-edge-768x835.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-on-the-edge.png 798w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>A large breakage:<\/h3>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10412\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/A-large-breakage-600x562.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/A-large-breakage-600x562.png\" alt=\"\" width=\"600\" height=\"562\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27562%27%20viewBox%3D%270%200%20600%20562%27%3E%3Crect%20width%3D%27600%27%20height%3D%27562%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/A-large-breakage-200x187.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/A-large-breakage-300x281.png 300w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/A-large-breakage-400x375.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/A-large-breakage-600x562.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/A-large-breakage-768x720.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/A-large-breakage-800x750.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/A-large-breakage.png 888w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>Cracks on the edge of a singlet lens:<\/h3>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10413\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-the-edge-singlet-lens-600x829.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-the-edge-singlet-lens-600x829.png\" alt=\"\" width=\"600\" height=\"829\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27829%27%20viewBox%3D%270%200%20600%20829%27%3E%3Crect%20width%3D%27600%27%20height%3D%27829%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-the-edge-singlet-lens-200x276.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-the-edge-singlet-lens-217x300.png 217w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-the-edge-singlet-lens-400x552.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-the-edge-singlet-lens-600x829.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-the-edge-singlet-lens-741x1024.png 741w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-the-edge-singlet-lens-768x1061.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-the-edge-singlet-lens-800x1105.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-the-edge-singlet-lens.png 821w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>Cracks on an outer optical element:<\/h3>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10414\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-an-outer-optical-element-600x409.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-an-outer-optical-element-600x409.png\" alt=\"\" width=\"600\" height=\"409\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27409%27%20viewBox%3D%270%200%20600%20409%27%3E%3Crect%20width%3D%27600%27%20height%3D%27409%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-an-outer-optical-element-200x136.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-an-outer-optical-element-300x205.png 300w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-an-outer-optical-element-400x273.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-an-outer-optical-element-600x409.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-an-outer-optical-element-768x524.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-an-outer-optical-element-800x546.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-an-outer-optical-element-1024x699.png 1024w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Cracks-on-an-outer-optical-element.png 1064w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>Crack in a lens caused during the grinding process:<\/h3>\n<h3><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10415\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-in-a-lens-600x458.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-in-a-lens-600x458.png\" alt=\"\" width=\"600\" height=\"458\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27458%27%20viewBox%3D%270%200%20600%20458%27%3E%3Crect%20width%3D%27600%27%20height%3D%27458%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-in-a-lens-200x153.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-in-a-lens-300x229.png 300w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-in-a-lens-400x305.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-in-a-lens-600x458.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-in-a-lens-768x586.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-in-a-lens-800x610.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-in-a-lens-1024x781.png 1024w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Crack-in-a-lens.png 1028w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/h3>\n<h3>Scratches on a coating caused by poor handling:<\/h3>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10416\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Scratches-on-a-coating-600x420.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Scratches-on-a-coating-600x420.png\" alt=\"\" width=\"600\" height=\"420\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27420%27%20viewBox%3D%270%200%20600%20420%27%3E%3Crect%20width%3D%27600%27%20height%3D%27420%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Scratches-on-a-coating-200x140.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Scratches-on-a-coating-300x210.png 300w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Scratches-on-a-coating-400x280.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Scratches-on-a-coating-600x420.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Scratches-on-a-coating-768x538.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Scratches-on-a-coating-800x560.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Scratches-on-a-coating-1024x717.png 1024w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Scratches-on-a-coating.png 1042w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>Contaminations in raw material:<\/h3>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10417\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Contaminations-in-raw-material-600x457.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Contaminations-in-raw-material-600x457.png\" alt=\"\" width=\"600\" height=\"457\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27457%27%20viewBox%3D%270%200%20600%20457%27%3E%3Crect%20width%3D%27600%27%20height%3D%27457%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Contaminations-in-raw-material-200x152.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Contaminations-in-raw-material-300x229.png 300w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Contaminations-in-raw-material-400x305.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Contaminations-in-raw-material-600x457.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Contaminations-in-raw-material-768x585.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Contaminations-in-raw-material-800x610.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Contaminations-in-raw-material.png 992w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>Peeling coating:<\/h3>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10418\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-coating-600x514.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-coating-600x514.png\" alt=\"\" width=\"600\" height=\"514\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27514%27%20viewBox%3D%270%200%20600%20514%27%3E%3Crect%20width%3D%27600%27%20height%3D%27514%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-coating-200x171.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-coating-300x257.png 300w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-coating-400x343.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-coating-600x514.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-coating-768x658.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-coating-800x686.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Peeling-coating.png 980w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>Digestion beginning of the reflective coating on the edge of a mirror:<\/h3>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10419\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-600x413.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-600x413.png\" alt=\"\" width=\"600\" height=\"413\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27413%27%20viewBox%3D%270%200%20600%20413%27%3E%3Crect%20width%3D%27600%27%20height%3D%27413%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-200x138.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-300x207.png 300w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-400x275.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-600x413.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-768x529.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-800x551.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-1024x705.png 1024w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion.png 1046w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3><span class=\"notion-enable-hover\" data-token-index=\"0\" data-reactroot=\"\">Digestion beginning of a reflective coating at the edge of a mirror:<\/span><\/h3>\n<p><img decoding=\"async\" class=\"lazyload aligncenter size-fusion-600 wp-image-10420\" src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-2-600x436.png\" data-orig-src=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-2-600x436.png\" alt=\"\" width=\"600\" height=\"436\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27600%27%20height%3D%27436%27%20viewBox%3D%270%200%20600%20436%27%3E%3Crect%20width%3D%27600%27%20height%3D%27436%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-2-200x145.png 200w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-2-300x218.png 300w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-2-400x291.png 400w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-2-600x436.png 600w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-2-768x559.png 768w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-2-800x582.png 800w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-2-1024x745.png 1024w, https:\/\/www.szlaser.com\/wp-content\/uploads\/2022\/09\/Digestion-2.png 1042w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3><\/h3>\n<\/div><div style=\"text-align:right;\"><a class=\"fusion-button button-flat fusion-button-default-size button-default fusion-button-default button-1 fusion-button-default-span fusion-button-default-type\" target=\"_self\" href=\"https:\/\/www.szlaser.com\/index.php\/wiki\/calculating-visual-defects\/\"><span class=\"fusion-button-text awb-button__text awb-button__text--default\">Measuring and Calculating Visual Defects &gt;<\/span><\/a><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":7,"featured_media":0,"parent":8230,"menu_order":102,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-10407","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v18.7 (Yoast SEO v25.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Illustrations of Visible Defects in Optical Elements - SZLASER<\/title>\n<meta name=\"description\" content=\"his images below depict various defects in substrates and coatings that can be visually observed.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.szlaser.com\/index.php\/wiki\/visible-defects-in-optical-elements\/\" \/>\n<meta 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