{"product_id":"da055","title":"DA055","description":"\u003ch3 class=\"product-name\"\u003eTarget USAF 1951 Fluorescent 2\"x2\" (POS)\u003c\/h3\u003e\n\u003cdiv id=\"main\" class=\"clearfix\"\u003e\n\u003cdiv id=\"column-right\" class=\"clearfix\"\u003e\n\u003cdiv id=\"product-info-wrap\" class=\"clearfix\"\u003e\n\u003cdiv id=\"product-tabs\" class=\"clearfix tinytabs\"\u003e\n\u003cdiv id=\"description-tab\" class=\"section\"\u003eThis enhanced version of the standard 1951 USAF target is uniquely suited to applications using a UV light source. This “Fluorescent” version is patterned on Corning 7980 Fused Silica for enhanced transmission in the UV spectrum (\u0026gt;92% @ 270nm). A UV-sensitive phosphorescent material is applied to the back of the glass substrate. The backing material emits a bright green visible light when exposed to a UV light source. The pattern is printed on the back side of the glass substrate so that the focal plane is in line with the phosphorescent coating.\u003cbr\u003e\u003cbr\u003eThe pattern frequency is listed in terms of Line Pairs Per Millimeter (lp\/mm). The image includes Group 0, Element 1 (1 lp\/mm) through Group 7, Element 6 (228 lp\/mm). The image is patterned in a positive fashion, meaning that an opaque pattern is centered on a clear field. The pattern is formed in durable double layer evaporative Chromium (Optical Density \u0026gt; 3.0) on a stable 1mm Fused Silica (quartz) substrate.\u003cbr\u003e\u003cbr\u003eUSAF targets can be used in the determination of optical resolution, MTF, field distortion, and parfocal stability.\u003cbr\u003e\u003cbr\u003eFor complete specifications, please see the drawing below under\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e“Detailed Specifications”\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0726\/7477\/1081\/files\/DA055.pdf?v=1764695990\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/a\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0726\/7477\/1081\/files\/DA055.pdf?v=1764695990\"\u003eClick here to download drawing \u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"prod-ctgy-hdft-footer\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"hdft-footer\"\u003e\u003c\/div\u003e\n\u003cdiv itemscope=\"\" itemtype=\"https:\/\/schema.org\/Product\"\u003e\n\u003cdiv itemprop=\"offer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Offer\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"column-left\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":45008841244809,"sku":null,"price":645.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/7477\/1081\/files\/DA055image.jpg?v=1764696271","url":"https:\/\/maxlevy.com\/products\/da055","provider":"Max Levy","version":"1.0","type":"link"}