{"product_id":"t-r1l1s1n-negative-combined-resolution-and-distortion-test-target-18-mm-square","title":"T-R1L1S1N - Negative Combined Resolution and Distortion Test Target, 18 mm Square","description":"\u003cp\u003eT-R1L1S1N - Negative Combined Resolution and Distortion Test Target, 18 mm Square\u003c\/p\u003e\n\u003cul class=\"SGBullet\"\u003e\n\u003cli\u003eMeasure Image Distortion, Astigmatism, and Other Aberrations\u003c\/li\u003e\n\u003cli\u003e18 mm (0.71\") Square, 1.5 mm Thick Target\u003c\/li\u003e\n\u003cli\u003eDetermine Resolution of an Optical System\u003c\/li\u003e\n\u003cli\u003eIncludes 1951 USAF Pattern, Sector Star, Concentric Circles, Grids, and Ronchi Rulings\u003c\/li\u003e\n\u003cli\u003ePositive and Negative Targets Available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable width=\"100%\" cellspacing=\"0\" class=\"SpecTable\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eTarget Feature\u003c\/th\u003e\n\u003cth align=\"center\"\u003eDetails\u003c\/th\u003e\n\u003cth align=\"left\"\u003eTarget Feature\u003c\/th\u003e\n\u003cth align=\"center\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" class=\"subhead\"\u003e1951 USAF Target\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eGroups 2 - 7\u003c\/td\u003e\n\u003ctd align=\"left\" class=\"subhead\"\u003eConcentric Circles\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e10 Circles with Radii from 100 µm to 1000 µm in 100 µm Intervals, Labeled 1 to 10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" class=\"subhead\"\u003eGrids\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e20 x 20 Arrays with 100 µm, 50 µm, and 10 µm Pitch\u003c\/td\u003e\n\u003ctd align=\"left\" class=\"subhead\"\u003eRonchi Rulings\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e13 Rulings from 30 lp\/mm\u003cspan\u003e \u003c\/span\u003eto 150 lp\/mm in 10 lp\/mm Intervals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" class=\"subhead\"\u003eSector Star\u003c\/td\u003e\n\u003ctd align=\"center\" colspan=\"3\"\u003e36 Bars through 360°, 10 µm Radius Center Circle, and Ten Concentric Circles with Radii from 50 µm to 500 µm in 50 µm Intervals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable class=\"SpecTable\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth align=\"center\" colspan=\"3\"\u003eOptical Specifications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr class=\"subhead\"\u003e\n\u003ctd\u003eItem #\u003c\/td\u003e\n\u003ctd\u003eT-R1L1S1P\u003c\/td\u003e\n\u003ctd\u003eT-R1L1S1N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePattern\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLR\u003cspan\u003e \u003c\/span\u003eChrome\u003c\/td\u003e\n\u003ctd\u003eClear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackground\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClear\u003c\/td\u003e\n\u003ctd\u003eLR\u003csup\u003ea\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eChrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eSurface Flatness\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e≤15 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChrome Optical Density\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e≥3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNOTES\/SPECIFICATIONS:\u003c\/p\u003e\n\u003cp\u003e1. MATERIAL: SODA LIME\u003c\/p\u003e\n\u003cp\u003e2. COATING: OD3 LOW-REFLECTIVITY CHROME\u003c\/p\u003e\n\u003cp\u003e3. FACE DIMENSION TOLERANCE: 0.75 mm\u003c\/p\u003e\n\u003cp\u003e4. THICKNESS TOLERANCE: 0.25 mm\u003c\/p\u003e\n\u003cp\u003e5. SURFACE FLATNESS: ≤15 µm\u003c\/p\u003e\n\u003cp\u003e6. OPTICAL DENSITY: ≥3.0 AT 430 nm\u003c\/p\u003e\n\u003cp\u003e7. R1L1S1N IS A NEGATIVE RETICLE WITH DARK BACKGROUND AND CLEAR PATTERNS\u003c\/p\u003e","brand":"Fosco Connect","offers":[{"title":"Default Title","offer_id":49083631108352,"sku":"T-R1L1S1N","price":1623.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/QTN005542-xl.jpg?v=1785202788","url":"https:\/\/alotechparts.com\/products\/t-r1l1s1n-negative-combined-resolution-and-distortion-test-target-18-mm-square","provider":"Alo Tech Solutions","version":"1.0","type":"link"}