{"product_id":"schott-kl-focusing-lenses-optical-filters-for-fibre-optic-light-guides","title":"SCHOTT KL Focusing Lenses \u0026 Optical Filters for Fibre Optic Light Guides","description":"\u003cdiv style=\"font-family: Arial, Helvetica, sans-serif; color: #1f2937; line-height: 1.65;\"\u003e\n\n  \u003c!-- HERO --\u003e\n  \u003cdiv style=\"background: linear-gradient(135deg, #0077b6 0%, #00a6d6 100%); color: #ffffff; padding: 28px; border-radius: 12px; margin-bottom: 24px;\"\u003e\n\n    \u003ch1 style=\"margin: 0 0 10px 0; font-size: 28px; line-height: 1.25; color: #ffffff;\"\u003e\n      SCHOTT KL Focusing Lenses \u0026amp; Optical Filters for Fibre Optic Light Guides\n    \u003c\/h1\u003e\n\n    \u003cp style=\"margin: 0; font-size: 17px;\"\u003e\n      Focusing and optical filter accessories for controlling and optimising illumination from compatible SCHOTT KL fibre-optic light guides.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- INTRO --\u003e\n  \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 10px; padding: 20px; margin-bottom: 24px;\"\u003e\n\n    \u003ch2 style=\"color: #0077b6; margin-top: 0; font-size: 21px;\"\u003e\n      Focus and Modify Fibre-Optic Illumination\n    \u003c\/h2\u003e\n\n    \u003cp\u003e\n      SCHOTT KL focusing lenses allow the light emerging from a compatible fibre-optic light guide to be concentrated and directed more precisely onto the specimen or inspection area.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Optional polarisation, halogen and daylight filters can then be combined with the appropriate focusing lens to further modify the illumination.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      Separate options are available for light guides up to Ø5 mm and for Ø8 mm light guides.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- OPTIONS --\u003e\n  \u003ch2 style=\"color: #0077b6; border-bottom: 2px solid #00a6d6; padding-bottom: 7px;\"\u003e\n    Available Focusing Lenses \u0026amp; Filters\n  \u003c\/h2\u003e\n\n\n  \u003c!-- 158.200 --\u003e\n  \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Focusing Lens \u0026amp; Colour Filter Set – P\/N 158.200\n    \u003c\/h3\u003e\n\n    \u003cp\u003e\n      Complete focusing-lens and colour-filter set for compatible fibre-optic light guides with a diameter of up to \u003cstrong\u003eØ5 mm\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      A convenient option where both focusing and colour-filter capability are required.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- 158.210 --\u003e\n  \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Focusing Lens – Up to Ø5 mm – P\/N 158.210\n    \u003c\/h3\u003e\n\n    \u003cp\u003e\n      Focusing lens for compatible SCHOTT fibre-optic light guides with a diameter of up to \u003cstrong\u003eØ5 mm\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      This lens is also required when using the 158.205 polarisation filter set, 158.207 halogen filter or 158.211 daylight filter.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- 158.205 --\u003e\n  \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Polarisation Filter Set – P\/N 158.205\n    \u003c\/h3\u003e\n\n    \u003cp\u003e\n      Polarisation filter set for compatible fibre-optic light guides up to Ø5 mm.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      \u003cstrong\u003eRequires SCHOTT focusing lens P\/N 158.210.\u003c\/strong\u003e\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- 158.207 --\u003e\n  \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Halogen Filter – P\/N 158.207\n    \u003c\/h3\u003e\n\n    \u003cp\u003e\n      Optical filter for use with the Ø5 mm focusing-lens system.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      \u003cstrong\u003eRequires SCHOTT focusing lens P\/N 158.210.\u003c\/strong\u003e\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- 158.211 --\u003e\n  \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Daylight Filter – P\/N 158.211\n    \u003c\/h3\u003e\n\n    \u003cp\u003e\n      Daylight filter for compatible SCHOTT fibre-optic illumination configurations using the Ø5 mm focusing-lens system.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      \u003cstrong\u003eRequires SCHOTT focusing lens P\/N 158.210.\u003c\/strong\u003e\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- 158.215 --\u003e\n  \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Focusing Lens for Ø8 mm Light Guides – P\/N 158.215\n    \u003c\/h3\u003e\n\n    \u003cp\u003e\n      Dedicated focusing lens for compatible \u003cstrong\u003eØ8 mm fibre-optic light guides\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      This lens is required when using the 158.206 polarisation filter.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- 158.206 --\u003e\n  \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0 28px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Polarisation Filter for Ø8 mm Light Guides – P\/N 158.206\n    \u003c\/h3\u003e\n\n    \u003cp\u003e\n      Polarisation filter for compatible SCHOTT Ø8 mm light-guide configurations.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      \u003cstrong\u003eRequires SCHOTT focusing lens P\/N 158.215.\u003c\/strong\u003e\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- QUICK GUIDE --\u003e\n  \u003ch2 style=\"color: #0077b6; border-bottom: 2px solid #00a6d6; padding-bottom: 7px;\"\u003e\n    Which System Do I Need?\n  \u003c\/h2\u003e\n\n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 20px 0 28px 0;\"\u003e\n\n    \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 9px; padding: 17px;\"\u003e\n\n      \u003cstrong style=\"color: #0077b6; font-size: 17px;\"\u003e\n        Light Guides up to Ø5 mm\n      \u003c\/strong\u003e\n\n      \u003cp\u003e\n        Start with \u003cstrong\u003e158.210\u003c\/strong\u003e focusing lens.\n      \u003c\/p\u003e\n\n      \u003cp style=\"margin-bottom: 0;\"\u003e\n        Compatible filter accessories include:\u003cbr\u003e\n        \u003cstrong\u003e158.205\u003c\/strong\u003e Polarisation\u003cbr\u003e\n        \u003cstrong\u003e158.207\u003c\/strong\u003e Halogen\u003cbr\u003e\n        \u003cstrong\u003e158.211\u003c\/strong\u003e Daylight\n      \u003c\/p\u003e\n\n    \u003c\/div\u003e\n\n\n    \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 9px; padding: 17px;\"\u003e\n\n      \u003cstrong style=\"color: #0077b6; font-size: 17px;\"\u003e\n        Ø8 mm Light Guides\n      \u003c\/strong\u003e\n\n      \u003cp\u003e\n        Start with \u003cstrong\u003e158.215\u003c\/strong\u003e focusing lens.\n      \u003c\/p\u003e\n\n      \u003cp style=\"margin-bottom: 0;\"\u003e\n        Add \u003cstrong\u003e158.206\u003c\/strong\u003e where polarisation is required.\n      \u003c\/p\u003e\n\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- POLARISATION --\u003e\n  \u003ch2 style=\"color: #0077b6; border-bottom: 2px solid #00a6d6; padding-bottom: 7px;\"\u003e\n    Polarisation for Reflective Specimens\n  \u003c\/h2\u003e\n\n  \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin-bottom: 28px;\"\u003e\n\n    \u003cp\u003e\n      Polarisation can be particularly useful when inspecting shiny or reflective specimen surfaces.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      By controlling reflected light, polarisation can help reduce glare and improve the visibility of surface details that may otherwise be obscured by strong reflections.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- APPLICATIONS --\u003e\n  \u003ch2 style=\"color: #0077b6; border-bottom: 2px solid #00a6d6; padding-bottom: 7px;\"\u003e\n    Typical Applications\n  \u003c\/h2\u003e\n\n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; margin: 20px 0 28px 0;\"\u003e\n\n    \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 8px; padding: 15px;\"\u003e\n      \u003cstrong\u003eDirectional Illumination\u003c\/strong\u003e\u003cbr\u003e\n      Concentrate fibre-optic light onto a smaller inspection area.\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 8px; padding: 15px;\"\u003e\n      \u003cstrong\u003eReflective Surfaces\u003c\/strong\u003e\u003cbr\u003e\n      Use polarisation to help control glare and reflections.\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 8px; padding: 15px;\"\u003e\n      \u003cstrong\u003eMicroscopy\u003c\/strong\u003e\u003cbr\u003e\n      Optimise illumination for stereo-microscope specimens.\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 8px; padding: 15px;\"\u003e\n      \u003cstrong\u003eIndustrial Inspection\u003c\/strong\u003e\u003cbr\u003e\n      Adjust light concentration and optical characteristics for component inspection.\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- IMPORTANT --\u003e\n  \u003cdiv style=\"background: #fff8e8; border-left: 5px solid #d79b00; padding: 18px; margin: 24px 0;\"\u003e\n\n    \u003cstrong style=\"font-size: 18px; color: #805c00;\"\u003e\n      Filters Require the Correct Focusing Lens\n    \u003c\/strong\u003e\n\n    \u003cp\u003e\n      The filters are not standalone focusing optics.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      \u003cstrong\u003e158.205, 158.207 and 158.211 require focusing lens 158.210.\u003c\/strong\u003e\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      \u003cstrong\u003e158.206 requires focusing lens 158.215.\u003c\/strong\u003e\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- OPTIONAL HOLDER --\u003e\n  \u003cdiv style=\"background: #f1f7ff; border-left: 5px solid #0077b6; padding: 18px; margin: 24px 0;\"\u003e\n\n    \u003cstrong style=\"font-size: 18px; color: #0077b6;\"\u003e\n      Need to Position the Focusing Lens?\n    \u003c\/strong\u003e\n\n    \u003cp\u003e\n      SCHOTT also offers the \u003cstrong\u003e158.341 focusing-lens holder\u003c\/strong\u003e with an M6 mounting thread for compatible mounting arrangements.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      Mounting accessories can be supplied separately where required.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- TECHNICAL RESOURCES --\u003e\n  \u003ch2 style=\"color: #0077b6; border-bottom: 2px solid #00a6d6; padding-bottom: 7px;\"\u003e\n    Technical Resources\n  \u003c\/h2\u003e\n\n  \u003cp\u003e\n    SCHOTT KL brochures, manuals and fibre-optic illumination information are available through the Auckland Scientific Technical Resource Centre.\n  \u003c\/p\u003e\n\n  \u003cdiv style=\"margin: 18px 0 28px 0;\"\u003e\n\n    \u003ca href=\"https:\/\/downloads.auckland-scientific.co.uk\/schott\/brochures\/\" target=\"_blank\" rel=\"noopener\" style=\"display: inline-block; background: #d9f0fa; border: 1px solid #0077b6; color: #005f91 !important; text-decoration: none; padding: 10px 16px; border-radius: 6px; font-weight: bold; margin: 4px 8px 4px 0;\"\u003e\n      SCHOTT Brochures \u0026amp; Datasheets\n    \u003c\/a\u003e\n\n    \u003ca href=\"https:\/\/downloads.auckland-scientific.co.uk\/schott\/manuals\/\" target=\"_blank\" rel=\"noopener\" style=\"display: inline-block; background: #d9f0fa; border: 1px solid #0077b6; color: #005f91 !important; text-decoration: none; padding: 10px 16px; border-radius: 6px; font-weight: bold;\"\u003e\n      SCHOTT Manuals\n    \u003c\/a\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- SUPPORT --\u003e\n  \u003cdiv style=\"background: #f1f7ff; border-left: 5px solid #0077b6; padding: 20px; margin-top: 25px;\"\u003e\n\n    \u003ch2 style=\"color: #0077b6; margin-top: 0; border: 0; padding: 0;\"\u003e\n      Auckland Scientific – Application Support\n    \u003c\/h2\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      Tell us the diameter of your SCHOTT fibre-optic light guide and what you are trying to inspect and we can help identify the appropriate focusing lens and filter combination.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Auckland Scientific Ltd","offers":[{"title":"Focusing Lens \u0026 Colour Filter Set – up to Ø5 mm","offer_id":59427934404933,"sku":"158.200","price":220.0,"currency_code":"GBP","in_stock":true},{"title":"Focusing Lens – up to Ø5 mm","offer_id":59427934437701,"sku":"158.210","price":41.0,"currency_code":"GBP","in_stock":true},{"title":"Polarisation Filter Set – up to Ø5 mm","offer_id":59427934470469,"sku":"158.205","price":82.0,"currency_code":"GBP","in_stock":true},{"title":"Halogen Filter – up to Ø5 mm","offer_id":59427934503237,"sku":"158.207","price":41.0,"currency_code":"GBP","in_stock":true},{"title":"Daylight Filter – up to Ø5 mm","offer_id":59427934536005,"sku":"158.211","price":41.0,"currency_code":"GBP","in_stock":true},{"title":"Focusing Lens – Ø8 mm Light Guide","offer_id":59427934568773,"sku":"158.215","price":108.0,"currency_code":"GBP","in_stock":true},{"title":"Polarisation Filter – Ø8 mm Light Guide","offer_id":59427934601541,"sku":"158.206","price":88.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/1930\/6309\/files\/158.200.jpg?v=1789920649","url":"https:\/\/auckland-scientific.co.uk\/products\/schott-kl-focusing-lenses-optical-filters-for-fibre-optic-light-guides","provider":"Auckland Scientific Ltd","version":"1.0","type":"link"}