{"product_id":"diffraction-grating-film-1000-lines-mm-a4-sheet","title":"Diffraction Grating Film — 1000 lines\/mm, A4 Sheet","description":"\u003cp\u003e1000 lines per millimetre. Hold it up to any light source and the spectrum separates immediately. Cut to size, mount in a frame, use with the Handheld Spectroscope already in this store. Measure the wavelengths of LEDs, neon signs, sodium lamps. Works as a demonstration of wave interference.\u003c\/p\u003e","brand":"Golden Physics Project","offers":[{"title":"Default Title","offer_id":54140450177316,"sku":"GPP-DIFF-GRATING-FILM","price":19.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/2879\/9524\/files\/photo-1557682257-2f9c37a3a5f3.jpg?v=1780366976","url":"https:\/\/shop.goldenphysics.org\/products\/diffraction-grating-film-1000-lines-mm-a4-sheet","provider":"Golden Physics Project","version":"1.0","type":"link"}