{"title":"Ball \u0026 Drum Lenses","description":"\u003cp\u003eBall and drum lenses provide compact, short-focal-length geometries for fiber coupling, endoscopy, sensing and miniature illumination systems.\u003c\/p\u003e\u003cp\u003eCompare K9 optical glass and UV fused silica options by diameter, effective focal length and application wavelength.\u003c\/p\u003e","products":[{"product_id":"so-l33-uvfs-ball-lens","title":"UV Fused Silica Ball Lens","description":"\u003ch2\u003eChoose the configuration around focal length and working wavelength\u003c\/h2\u003e\u003cdiv class=\"gshop-guidance-grid gshop-guidance-grid--two\"\u003e\n\u003csection\u003e\u003ch3\u003eOptical behavior\u003c\/h3\u003e\n\u003cp\u003eBall-lens performance is strongly linked to diameter, refractive index and source numerical aperture. Use the listed focal length and back focal length to estimate working distance, and account for the very small clearances typical of miniature models.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch3\u003eSelection and integration\u003c\/h3\u003e\n\u003cp\u003ePrecise centering is critical: decenter or axial spacing error can dominate coupling loss in a ball-lens assembly.\u003c\/p\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Canal Glass Shop","offers":[{"title":"SO-L33-001","offer_id":67427124903981,"sku":"SO-L33-001","price":51.47,"currency_code":"USD","in_stock":true},{"title":"SO-L33-002","offer_id":67427125067821,"sku":"SO-L33-002","price":39.71,"currency_code":"USD","in_stock":true},{"title":"SO-L33-003","offer_id":67427125100589,"sku":"SO-L33-003","price":39.71,"currency_code":"USD","in_stock":true},{"title":"SO-L33-004","offer_id":67427125133357,"sku":"SO-L33-004","price":44.12,"currency_code":"USD","in_stock":true},{"title":"SO-L33-005","offer_id":67427125166125,"sku":"SO-L33-005","price":44.12,"currency_code":"USD","in_stock":true},{"title":"SO-L33-006","offer_id":67427125198893,"sku":"SO-L33-006","price":54.41,"currency_code":"USD","in_stock":true},{"title":"SO-L33-007","offer_id":67427125231661,"sku":"SO-L33-007","price":54.41,"currency_code":"USD","in_stock":true},{"title":"SO-L33-008","offer_id":67427125264429,"sku":"SO-L33-008","price":54.41,"currency_code":"USD","in_stock":true},{"title":"SO-L33-009","offer_id":67427125297197,"sku":"SO-L33-009","price":63.24,"currency_code":"USD","in_stock":true},{"title":"SO-L33-010","offer_id":67427125329965,"sku":"SO-L33-010","price":69.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/2740\/4333\/files\/cid_198_01.jpg?v=1788053870"},{"product_id":"so-l27-k9-ball-lens","title":"K9 Ball Lens","description":"\u003ch2\u003eChoose the configuration around focal length and working wavelength\u003c\/h2\u003e\u003cdiv class=\"gshop-guidance-grid gshop-guidance-grid--two\"\u003e\n\u003csection\u003e\u003ch3\u003eOptical behavior\u003c\/h3\u003e\n\u003cp\u003eSelect the ball diameter in relation to the beam or fiber numerical aperture, then use focal length and back focal length to set source spacing. Because working distances are short, mount concentricity and axial positioning require close control.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch3\u003eSelection and integration\u003c\/h3\u003e\n\u003cp\u003eUncoated K9 ball lenses are economical for prototyping; reflection losses should be included in the coupling budget.\u003c\/p\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Canal Glass Shop","offers":[{"title":"SO-L27-001","offer_id":67427128180781,"sku":"SO-L27-001","price":33.82,"currency_code":"USD","in_stock":true},{"title":"SO-L27-002","offer_id":67427128508461,"sku":"SO-L27-002","price":27.94,"currency_code":"USD","in_stock":true},{"title":"SO-L27-003","offer_id":67427128541229,"sku":"SO-L27-003","price":27.94,"currency_code":"USD","in_stock":true},{"title":"SO-L27-004","offer_id":67427128573997,"sku":"SO-L27-004","price":29.41,"currency_code":"USD","in_stock":true},{"title":"SO-L27-005","offer_id":67427128606765,"sku":"SO-L27-005","price":29.41,"currency_code":"USD","in_stock":true},{"title":"SO-L27-006","offer_id":67427128639533,"sku":"SO-L27-006","price":36.76,"currency_code":"USD","in_stock":true},{"title":"SO-L27-007","offer_id":67427128672301,"sku":"SO-L27-007","price":36.76,"currency_code":"USD","in_stock":true},{"title":"SO-L27-008","offer_id":67427128705069,"sku":"SO-L27-008","price":36.76,"currency_code":"USD","in_stock":true},{"title":"SO-L27-009","offer_id":67427128737837,"sku":"SO-L27-009","price":42.65,"currency_code":"USD","in_stock":true},{"title":"SO-L27-010","offer_id":67427128770605,"sku":"SO-L27-010","price":45.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/2740\/4333\/files\/cid_199_01.jpg?v=1788053876"},{"product_id":"so-l32-uvfs-drum-lens","title":"UV Fused Silica Drum Lens","description":"\u003ch2\u003eChoose the configuration around focal length and working wavelength\u003c\/h2\u003e\u003cdiv class=\"gshop-guidance-grid gshop-guidance-grid--two\"\u003e\n\u003csection\u003e\u003ch3\u003eOptical behavior\u003c\/h3\u003e\n\u003cp\u003eThe model geometry is defined by diameter and center thickness, while focal length and back focal length establish the optical spacing. The cylindrical barrel improves mechanical registration but still requires accurate centering relative to the optical axis.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch3\u003eSelection and integration\u003c\/h3\u003e\n\u003cp\u003eChoose a drum lens when ball-lens-like power is needed with a more practical cylindrical mounting surface.\u003c\/p\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Canal Glass Shop","offers":[{"title":"SO-L32-020-025","offer_id":67427130703917,"sku":"SO-L32-020-025","price":82.35,"currency_code":"USD","in_stock":true},{"title":"SO-L32-020-030","offer_id":67427130834989,"sku":"SO-L32-020-030","price":82.35,"currency_code":"USD","in_stock":true},{"title":"SO-L32-030-040","offer_id":67427130867757,"sku":"SO-L32-030-040","price":91.18,"currency_code":"USD","in_stock":true},{"title":"SO-L32-040-050","offer_id":67427130900525,"sku":"SO-L32-040-050","price":97.06,"currency_code":"USD","in_stock":true},{"title":"SO-L32-050-080","offer_id":67427130933293,"sku":"SO-L32-050-080","price":111.76,"currency_code":"USD","in_stock":true},{"title":"SO-L32-020-025-UV","offer_id":67427130966061,"sku":"SO-L32-020-025-UV","price":101.47,"currency_code":"USD","in_stock":true},{"title":"SO-L32-020-030-UV","offer_id":67427130998829,"sku":"SO-L32-020-030-UV","price":101.47,"currency_code":"USD","in_stock":true},{"title":"SO-L32-030-040-UV","offer_id":67427131031597,"sku":"SO-L32-030-040-UV","price":108.82,"currency_code":"USD","in_stock":true},{"title":"SO-L32-040-050-UV","offer_id":67427131064365,"sku":"SO-L32-040-050-UV","price":116.18,"currency_code":"USD","in_stock":true},{"title":"SO-L32-050-080-UV","offer_id":67427131097133,"sku":"SO-L32-050-080-UV","price":132.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/2740\/4333\/files\/cid_196_01.jpg?v=1788053882"},{"product_id":"so-l26-k9-drum-lens","title":"K9 Drum Lens","description":"\u003ch2\u003eChoose the configuration around focal length and working wavelength\u003c\/h2\u003e\u003cdiv class=\"gshop-guidance-grid gshop-guidance-grid--two\"\u003e\n\u003csection\u003e\u003ch3\u003eOptical behavior\u003c\/h3\u003e\n\u003cp\u003eDiameter and center thickness define the mechanical envelope; focal length and back focal length determine the source or fiber spacing. The short working distance makes axial tolerance and barrel concentricity especially important.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch3\u003eSelection and integration\u003c\/h3\u003e\n\u003cp\u003eUse the drum geometry when repeatable mechanical location is a priority in a miniature coupling assembly.\u003c\/p\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Canal Glass Shop","offers":[{"title":"SO-L26-020-025","offer_id":67427135520813,"sku":"SO-L26-020-025","price":51.47,"currency_code":"USD","in_stock":true},{"title":"SO-L26-020-030","offer_id":67427135651885,"sku":"SO-L26-020-030","price":51.47,"currency_code":"USD","in_stock":true},{"title":"SO-L26-030-040","offer_id":67427135684653,"sku":"SO-L26-030-040","price":60.29,"currency_code":"USD","in_stock":true},{"title":"SO-L26-040-050","offer_id":67427135717421,"sku":"SO-L26-040-050","price":66.18,"currency_code":"USD","in_stock":true},{"title":"SO-L26-050-080","offer_id":67427135750189,"sku":"SO-L26-050-080","price":73.53,"currency_code":"USD","in_stock":true},{"title":"SO-L26-020-025-VIS","offer_id":67427135782957,"sku":"SO-L26-020-025-VIS","price":63.24,"currency_code":"USD","in_stock":true},{"title":"SO-L26-020-030-VIS","offer_id":67427135815725,"sku":"SO-L26-020-030-VIS","price":63.24,"currency_code":"USD","in_stock":true},{"title":"SO-L26-030-040-VIS","offer_id":67427135848493,"sku":"SO-L26-030-040-VIS","price":73.53,"currency_code":"USD","in_stock":true},{"title":"SO-L26-040-050-VIS","offer_id":67427135881261,"sku":"SO-L26-040-050-VIS","price":79.41,"currency_code":"USD","in_stock":true},{"title":"SO-L26-050-080-VIS","offer_id":67427135914029,"sku":"SO-L26-050-080-VIS","price":94.12,"currency_code":"USD","in_stock":true},{"title":"SO-L26-020-025-NIR","offer_id":67427135946797,"sku":"SO-L26-020-025-NIR","price":63.24,"currency_code":"USD","in_stock":true},{"title":"SO-L26-020-030-NIR","offer_id":67427135979565,"sku":"SO-L26-020-030-NIR","price":63.24,"currency_code":"USD","in_stock":true},{"title":"SO-L26-030-040-NIR","offer_id":67427136012333,"sku":"SO-L26-030-040-NIR","price":73.53,"currency_code":"USD","in_stock":true},{"title":"SO-L26-040-050-NIR","offer_id":67427136045101,"sku":"SO-L26-040-050-NIR","price":79.41,"currency_code":"USD","in_stock":true},{"title":"SO-L26-050-080-NIR","offer_id":67427136077869,"sku":"SO-L26-050-080-NIR","price":94.12,"currency_code":"USD","in_stock":true},{"title":"SO-L26-020-025-SWIR","offer_id":67427136110637,"sku":"SO-L26-020-025-SWIR","price":63.24,"currency_code":"USD","in_stock":true},{"title":"SO-L26-020-030-SWIR","offer_id":67427136143405,"sku":"SO-L26-020-030-SWIR","price":63.24,"currency_code":"USD","in_stock":true},{"title":"SO-L26-030-040-SWIR","offer_id":67427136176173,"sku":"SO-L26-030-040-SWIR","price":73.53,"currency_code":"USD","in_stock":true},{"title":"SO-L26-040-050-SWIR","offer_id":67427136208941,"sku":"SO-L26-040-050-SWIR","price":79.41,"currency_code":"USD","in_stock":true},{"title":"SO-L26-050-080-SWIR","offer_id":67427136241709,"sku":"SO-L26-050-080-SWIR","price":94.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/2740\/4333\/files\/cid_195_01.jpg?v=1788053888"}],"url":"https:\/\/www.glasshop.net\/collections\/optical-lenses-ball-and-drum-lenses.oembed","provider":"Canal Glass Shop","version":"1.0","type":"link"}