Lub lens yog ua raws li txoj cai ntawm lub teeb refraction. Lub lens yog ib qho khoom siv kho qhov muag uas ua los ntawm cov khoom pob tshab xws li iav, siv lead ua, lossis lwm yam. Lub lens yog ib qho refractor uas nws lub ntsej muag refractive yog ob lub ntsej muag kheej kheej (ib feem ntawm lub ntsej muag kheej kheej), los yog lub ntsej muag kheej kheej (ib feem ntawm lub ntsej muag kheej kheej) thiab lub cev pob tshab. Nws muaj cov duab tiag tiag thiab cov duab virtual. Lub lens feem ntau tuaj yeem muab faib ua ob pawg dav: concave lens thiab convex lens. Lub hauv nruab nrab yog tuab dua li ntawm ntug, uas yog hu ua convex lens thaum lub hauv paus yog nyias dua li ntawm ntug.
LED lo ntsiab muag yog feem ntau silicone lo ntsiab muag vim hais tias silicone yog resistant rau high kub thiab kuj yuav re-flowed, yog li nws yog feem ntau ntim ncaj qha rau LED chips. Lub lens silicone dav yog me me nyob rau hauv ntim, 3-10mm inch, thiab lub lens LED feem ntau zoo sib xws nrog cov LED, uas tuaj yeem pab txhim kho lub teeb-emitting efficiency ntawm LED thiab qhov kho qhov muag uas hloov. lub teeb teb faib ntawm LED.
Lub hwj chim loj LED lo ntsiab muag los yog lub ntsej muag yog tsuas yog siv rau kev sau thiab coj lub teeb ntawm lub zog loj LED txias lub teeb khoom. Lub hwj chim loj LED lub lens tsim lub teeb faib nkhaus raws li lub kaum sab xis ntawm LEDs sib txawv es tsis yog lub teeb aspherical optical lens, thiab ua rau kom qhov kev xav ntawm qhov muag kom txo tau lub teeb poob thiab txhim kho lub teeb pom kev zoo.
Hais txog lub lens LED, vam tias cov lus piav qhia hauv qab no yuav pab koj nkag siab qhov sib txawv ntawm txhua yam khoom ntawm LED lens thiab qhov zoo ntawm LED lens.
I. Kev faib khoom ntawm LED lens
1. Silicone lens
1) Vim tias silicone tiv taus qhov kub thiab txias (thiab tseem tuaj yeem rov qab tau), nws feem ntau yog ntim ncaj qha rau ntawm LED nti.
2) Lub ntsej muag silicone dav yog qhov me me hauv ntim thiab muaj txoj kab uas hla ntawm 3-10 hli.
2. PMMA lens
1) Optical qib PMMA (polymethyl methacrylate, feem ntau hu ua: acrylic)
2) Cov ntaub ntawv yas, uas muaj qhov zoo ntawm kev ua tau zoo (tuaj yeem ua tiav los ntawm kev txhaj tshuaj molding, extrusion) thiab kev xa tawm siab (txog 93 feem pua ntawm kev nkag mus ntawm 3mm thickness), tab sis kuj kub tsis tshaj 80 degree (kub distortion kub 92 degree. C) Cov kev tsis txaus siab.
3.PC lens
1) Optical qib Polycarbonate (PC) polycarbonate
2) Cov ntaub ntawv yas, uas muaj qhov zoo ntawm kev ua tau zoo (tuaj yeem ua tiav los ntawm kev txhaj tshuaj molding, extrusion) thiab kev xa tawm siab (txog 89 feem pua ntawm kev nkag mus ntawm 3mm thickness), tab sis kuj kub tsis tuaj yeem siab tshaj 110 degree (kub distortion kub 135 degree) )
4. iav lens
Cov khoom siv iav kho qhov muag, uas muaj qhov zoo ntawm lub teeb xa hluav taws xob siab (97 feem pua ntawm kev nkag mus ntawm 3mm thickness) thiab kub tsis kam, tab sis nws qhov tsis zoo yog tias nws hnyav hauv ntim, ib qho zoo, tsis yooj yim, nyuaj rau kev ua tiav ntau lawm, thiab qis. ntau lawm efficiency, siab nqi, thiab lwm yam.
II. Qhov zoo ntawm kev siv lub lens LED
1. Txawm hais tias nyob deb li cas, lub teeb lub teeb (reflector khob) tsis txawv ntawm lub lens. Nyob rau hauv cov nqe lus ntawm uniformity, lub lens yog superior rau lub reflector.
2. Cov nyhuv ntawm kev siv lub kaum sab xis me me ntawm lub teeb pom kev zoo dua li lub teeb pom kev zoo vim tias lub teeb ci ntsa iab tau raug condensed los ntawm lub lens (thiab LED nws tus kheej yuav tsum muaj lub lens), thiab tom qab ntawd concentrated los ntawm ib lub reticle, ua rau cov xim sib txawv ntawm lub teeb pom kev zoo. taw tes loj dua thiab nkim ntau lub teeb. Tab sis nrog lub lens LED, ob qho tib si ntau thiab lub kaum sab xis ntawm lub teeb pom kev ntawm lub lens tuaj yeem ua tau zoo.
