{"product_id":"obsidian-black-twilight80-blue-light-blocking-glasses","title":"Obsidian - Sundown | Blue Light Blocking Glasses","description":"\u003cdiv style=\"display: flex; align-items: center; gap: 12px; margin: 0 0 12px 0;\"\u003e\n\u003cimg style=\"width: 80px; height: 80px; flex: 0 0 80px; display: block;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/4561\/5447\/files\/Untitled_120_x_120_px_400_x_400_px.png?v=1770554707\"\u003e \u003cspan style=\"line-height: 1.2; transform: translateY(-2px);\"\u003eGreat choice for late night screen-time when vision clarity is needed\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px; margin: 0 0 12px 0;\"\u003e\n\u003cimg style=\"width: 80px; height: 80px; flex: 0 0 80px; display: block;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/4561\/5447\/files\/8.png?v=1770642993\"\u003e \u003cspan style=\"line-height: 1.2; transform: translateY(-2px);\"\u003e Assists in optimising circadian rhythm \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px; margin: 0 0 12px 0;\"\u003e\n\u003cimg style=\"width: 80px; height: 80px; flex: 0 0 80px; display: block;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/4561\/5447\/files\/4.png?v=1770642993\"\u003e \u003cspan style=\"line-height: 1.2; transform: translateY(-2px);\"\u003ePromotes quality sleep\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eOur \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSundown™\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e lenses are designed to provide powerful evening protection while maintaining comfortable visibility for everyday tasks.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e52% visible-light transmission\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the warm orange lenses filter approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e97% of blue-violet light across 380–500 nm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, including \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eover 97% at 450 nm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eover 95% at 500 nm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSundown’s blue-light protection works through two complementary technologies. The orange lens tint filters a broad range of short-wavelength light, while a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emulti-layer metal-oxide coating\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is designed to selectively reflect targeted wavelengths across approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e400–550 nm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe warm orange tint makes Sundown ideal for screens, artificial indoor lighting and evening routines where strong filtering is desired while retaining practical visibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePaired with the sleek, polished \u003cstrong\u003eblack\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e acetate frame\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003cstrong\u003eObsidian Sundown\u003c\/strong\u003e combines a naturally warm aesthetic with purposeful optical performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eFigures based on laboratory spectral analysis. Not suitable for driving at night.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat’s included:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eObsidian Black - Blue Light Blocking Glasses\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eMicrofibre lens cleaning cloth\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProtective drawstring pouch\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLuxury Branded Presentation Box\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 18px; margin: 0 0 12px 0; font: inherit;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0888\/4561\/5447\/files\/Untitled_120_x_120_px_400_x_400_px_-2.png?v=1770923501\" alt=\"\" style=\"width: 120px; height: 120px; flex: 0 0 120px; display: block;\"\u003e \u003cspan style=\"font: inherit; flex: 1; min-width: 0; line-height: 1.45; letter-spacing: normal;\"\u003e \u003cstrong\u003eFree Royal Mail Tracked48® Delivery (UK Mainland only)\u003c\/strong\u003e \u003c\/span\u003e\n\u003c\/div\u003e","brand":"ZEN OPTICS","offers":[{"title":"Default Title","offer_id":54283820368215,"sku":null,"price":29.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/4561\/5447\/files\/f857de23-c0da-47fe-9829-c46348bcf251.png?v=1786111647","url":"https:\/\/zenoptics.co.uk\/products\/obsidian-black-twilight80-blue-light-blocking-glasses","provider":"ZENOPTICS","version":"1.0","type":"link"}