{"product_id":"copy-of-a-rowland-grating","title":"Copy of a Rowland Grating","description":"This copy of a Rowland grating is supplied on a collodion foil between two glass plates in a metal frame for the purpose of projecting diffraction spectra, measuring wavelengths and observing spectra with spectrum lamps.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eLines\/unit length: 600\/mm\u003cbr\u003eGrating constant: 1.7 µm\u003cbr\u003eDimensions: 50 mm x 50 mm","brand":"Krüss Optronic","offers":[{"title":"Default Title","offer_id":49419083710741,"sku":"3BS1002917","price":258.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/U14424_01_1200_1200_Copy-of-a-Rowland-Grating.jpg?v=1761023728","url":"https:\/\/unitedsupplycorp.com\/products\/copy-of-a-rowland-grating","provider":"United Supply Corp.","version":"1.0","type":"link"}