{"product_id":"t-r1l1s2p-positive-sector-star-test-target-1-x-1-36-bars","title":"T-R1L1S2P - Positive Sector Star Test Target, 1\" x 1\", 36 Bars","description":"\u003cp\u003eT-R1L1S2P - Positive Sector Star Test Target, 1\" x 1\", 36 Bars\u003c\/p\u003e\n\u003cul class=\"SGBullet\"\u003e\n\u003cli\u003e1\" x 1\" (25.4 mm x 25.4 mm) Positive Sector Star Targets\u003c\/li\u003e\n\u003cli\u003eDetermine Resolution of an Optical System\u003c\/li\u003e\n\u003cli\u003eLow-Reflectivity, Vacuum-Sputtered Chrome on Soda Lime Glass\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePattern Low-Reflectivity Chrome\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBackground Clear\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface Flatness ≤15 µm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChrome Optical Density ≥3.0 at 430 nm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePattern Outer Diameter 10 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCenter Circle Diameter 200 µm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNumber of Bars 36 Over 360°\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution at Outer Diameter 1.15 lp\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution at Center Circle 57.5 lp\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"SGBullet\"\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe T-R1L1S2P target has 36 bars over 360°. The resolution at the center circle of this target is 57.5 lp\/mm. Alternatively, the R1L1S3P target has 72 bars over 360°, and the resolution at the center is 115 lp\/mm. Both targets also have a \u003c\/span\u003e\u003cspan\u003eØ2\u003c\/span\u003e\u003cspan\u003e00 µm center circle and are useful for determining the resolution of an optical system by noting how close to the center of the pattern an optical system is able to resolve adjacent bars. \u003c\/span\u003e\u003c\/p\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: 0.5 mm\u003c\/p\u003e\n\u003cp\u003e4. THICKNESS TOLERANCE: 0.3 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. R1L1S2P IS A POSITIVE TEST TARGET WITH DARK PATTERN AND CLEAR BACKGROUND\u003c\/p\u003e\n\u003cp\u003eHBB8. PATTERN SIZE: WEDGE SHAPED SEGMENT WITH 36 EQUAL BAR AND SPACE WIDTHS (10 DEGREES PER CYCLE OR 5 DEGREES PER SPOKE) OVER A 360 DEGREES CIRCUMFERENCE CIRCLE. OVERALL IMAGE SIZE 10mm DIAMETER. THE SMALLEST RESOLVED GRATING PITCH AT THE CENTER\u003c\/p\u003e","brand":"Fosco Connect","offers":[{"title":"Default Title","offer_id":49083629961472,"sku":"T-R1L1S2P","price":484.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/QTN005778-xl.jpg?v=1785202771","url":"https:\/\/alotechparts.com\/products\/t-r1l1s2p-positive-sector-star-test-target-1-x-1-36-bars","provider":"Alo Tech Solutions","version":"1.0","type":"link"}