{"product_id":"sleepaxa-chrono-burnt-umber-fl-41-migraine-glasses-compact-rectangle-49mm-eye","title":"Sleepaxa Chrono Burnt Umber FL-41 Migraine Glasses – Compact Rectangle, 49mm Eye","description":"\u003cdiv class=\"sxd\"\u003e\n\u003cdiv class=\"sxd-sec\"\u003e\n\u003cdiv class=\"sxd-k\"\u003eThe Hybrid Series · FL-41\u003c\/div\u003e\n\u003ch2\u003eChrono Burnt Umber\u003c\/h2\u003e\n\u003cp class=\"sxd-lede\"\u003eA burnt umber rectangle small enough to forget you put on.\u003c\/p\u003e\n\u003cp\u003eChrono runs a 49 mm eye, one of the smallest here, inside a plain rectangle on a 139 mm front. The 20 mm bridge is wide for that eye, which lifts the frame and opens the nose area, and the 40 mm lens height is more generous than the compact outline suggests, so coverage under the pupil holds up. Burnt umber is a warm mid-brown that sits close to the rose of the lens rather than fighting it. The whole frame is aimed at people who want the filter present and the eyewear absent.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sxd-sec\"\u003e\n\u003cdiv class=\"sxd-k\"\u003eTwo tints, two jobs\u003c\/div\u003e\n\u003ch2\u003eTwo rose depths, one compact rectangle\u003c\/h2\u003e\n\u003cdiv class=\"sxd-grid\"\u003e\n\u003cdiv class=\"sxd-card\"\u003e\n\u003cb\u003eFL-41 Light\u003c\/b\u003e\u003cem\u003eMild photophobia, all day\u003c\/em\u003e\u003cspan\u003eWhere the dark lens is for a bright room, this one is for the whole day. It shares the rose-band notch with FL-41 Dark and runs at a higher overall transmittance. The full spectrophotometer report is being finalized and will be published here. 100% UV400.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sxd-card\"\u003e\n\u003cb\u003eFL-41 Dark\u003c\/b\u003e\u003cem\u003eSevere photophobia\u003c\/em\u003e\u003cspan\u003eThe blue band is held down across its width instead of being removed: 7.9% at 420 nm, 13.8% at 450 nm. Green comes down with it, 12.6% at 520 nm. Luminous transmittance is 41.1%, Filter Category 2, with 100% UV protection (UV400).\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"sxd-note\"\u003eAll figures are single-lens spectrophotometer measurements from our own laboratory reports for this lens, tested to EN ISO 12312-1, ANSI Z80.3 and AS\/NZS 1067.1. Individual response varies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sxd-sec\"\u003e\n\u003cdiv class=\"sxd-k\"\u003eFit\u003c\/div\u003e\n\u003ch3\u003eWill the Chrono fit you?\u003c\/h3\u003e\n\u003cp\u003eChrono is medium at 139 mm across the front, but the 49 mm eye makes it read as a small frame. The 20 mm bridge is wide for that eye and keeps the rectangle sitting high and clear of the cheek. At 40 mm the lens depth is better than the compact outline suggests, so coverage below the pupil is real. Temples are 145 mm, standard. A broad face will find this one undersized.\u003c\/p\u003e\n\u003ctable class=\"sxd-tbl\"\u003e\n\u003ctr\u003e\n\u003cth\u003eFrame size\u003c\/th\u003e\n\u003ctd\u003e49-20-145\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFront width\u003c\/th\u003e\n\u003ctd\u003e139mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLens height\u003c\/th\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFit\u003c\/th\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eRectangle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCollection\u003c\/th\u003e\n\u003ctd\u003eThe Hybrid Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLens options\u003c\/th\u003e\n\u003ctd\u003eFL-41 Light or Dark · zero power or prescription\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUV protection\u003c\/th\u003e\n\u003ctd\u003e100% UV400, both tints\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sxd-sec\"\u003e\n\u003cdiv class=\"sxd-k\"\u003eIn the box\u003c\/div\u003e\n\u003cul class=\"sxd-list\"\u003e\n\u003cli\u003eChrono Burnt Umber frame in your chosen FL-41 tint\u003c\/li\u003e\n\u003cli\u003eHard case and microfiber cleaning cloth\u003c\/li\u003e\n\u003cli\u003eSpectrophotometer report reference for your lens\u003c\/li\u003e\n\u003cli\u003eOne-year frame warranty, six-month lens warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sleepaxa","offers":[{"title":"Zero Power \/ FL-41 Light Tint - Mild Photophobia","offer_id":48028501770389,"sku":null,"price":124.0,"currency_code":"USD","in_stock":false},{"title":"Zero Power \/ FL-41 Dark Tint - Severe Photophobia","offer_id":48028501803157,"sku":null,"price":130.0,"currency_code":"USD","in_stock":false},{"title":"Prescription Lens \/ FL-41 Light Tint - Mild Photophobia","offer_id":48028501835925,"sku":null,"price":174.0,"currency_code":"USD","in_stock":false},{"title":"Prescription Lens \/ FL-41 Dark Tint - Severe Photophobia","offer_id":48028501868693,"sku":null,"price":180.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/5475\/4453\/files\/M1115Black2.676copy_6541e8ff-272d-451f-a38b-8061ebb9ddfa.jpg?v=1789806236","url":"https:\/\/www.sleepaxa.com\/products\/sleepaxa-chrono-burnt-umber-fl-41-migraine-glasses-compact-rectangle-49mm-eye","provider":"Sleepaxa","version":"1.0","type":"link"}