Lingaliro Loyambira la Lens
Lens imapangidwa molingana ndi lamulo la refraction kuwala. Lens ndi chinthu chowoneka bwino chopangidwa ndi zinthu zowonekera monga galasi, kristalo, kapena zina. Diso ndi refractor amene mawonekedwe ake refractive ndi awiri ozungulira pamwamba (mbali yozungulira pamwamba), kapena ozungulira pamwamba (mbali yozungulira pamwamba) ndi lathyathyathya mandala thupi. Ili ndi chithunzi chenicheni ndi chithunzi chenicheni. Magalasi amatha kugawidwa m'magulu awiri akuluakulu: ma lens a concave ndi ma convex. Mbali yapakati ndi yokhuthala kuposa mbali ya m'mphepete, yomwe imatchedwa lens convex pamene gawo lapakati ndi lochepa kwambiri kuposa la m'mphepete.
Magalasi a LED nthawi zambiri amakhala magalasi a silikoni chifukwa silikoni imalimbana ndi kutentha kwambiri ndipo imatha kuyendereranso, motero nthawi zambiri imayikidwa pazida za LED. Magalasi ambiri a silikoni ndi ochepa mu voliyumu, 3-10mm m'mimba mwake, ndipo mandala a LED nthawi zambiri amakhala ogwirizana kwambiri ndi ma LED, omwe angathandize kupititsa patsogolo kuwala kwa LED ndi mawonekedwe owunikira omwe amasintha kuwala. kugawa kwa LED.
Ma lens amphamvu kwambiri a LED kapena chowunikira chimagwiritsidwa ntchito makamaka kusonkhanitsa ndi kuwongolera kuwala kwamagetsi amphamvu kwambiri amagetsi amagetsi a LED. Lens yamphamvu kwambiri ya LED imapanga kanjira kagawidwe ka kuwala molingana ndi mbali ya ma LED osiyanasiyana m'malo mwa lens ya aspherical optical lens, ndikuwonjezera kuwala kuti muchepetse kutayika kwa kuwala ndikuwongolera kuyatsa bwino.
Pankhani ya lens ya LED, ndikuyembekeza kuti mafotokozedwe otsatirawa akuthandizani kumvetsetsa kusiyana kwa lens iliyonse ya LED ndi ubwino wa lens ya LED.
I. Gulu lazinthu zamagalasi a LED
1. Lens ya silicone
1) Chifukwa silikoni imalimbana ndi kutentha kwambiri (ndipo imatha kubwezeredwanso), nthawi zambiri imayikidwa mwachindunji pa chipangizo cha LED.
2) Lens wamba silikoni ndi yaying'ono mu voliyumu ndipo ali ndi mainchesi 3-10 mm.
2.PMMA mandala
1) Optical grade PMMA (polymethyl methacrylate, yomwe imadziwika kuti: acrylic)
2) Zida zapulasitiki, zomwe zili ndi ubwino wopanga bwino (zitha kutha ndi jekeseni, kutulutsa) ndi transmittance yapamwamba (pafupifupi 93% kulowa pa 3mm makulidwe), komanso kutentha sikungapitirire 80 ° C (kutentha kwa kutentha kwa 92). ° C )Zolakwika.
3.PC mandala
1) Optical grade Polycarbonate (PC) polycarbonate
2) Zida zapulasitiki, zomwe zili ndi ubwino wopanga bwino (zitha kutha ndi jekeseni, kutulutsa) ndi kutulutsa kwakukulu (pafupifupi 89% kulowa pa 3mm makulidwe), komanso kutentha sikungathe kupitirira 110 ° C (kutentha kwa kutentha kwa 135 ° C))
4. Lens yagalasi
Magalasi owoneka bwino, omwe ali ndi ubwino wa transmittance yowala kwambiri (97% kulowa pa 3mm makulidwe) ndi kukana kutentha kwapamwamba, koma kuipa kwake ndi kolemera mu voliyumu, mawonekedwe osakwatiwa, osalimba, ovuta kukwaniritsa kupanga kwakukulu, komanso otsika. kupanga bwino, kukwera mtengo, etc.
II. Ubwino wogwiritsa ntchito mandala a LED
1. Mosasamala kanthu za mtunda, choyikapo nyali (chikho chowonetsera) sichisiyana kwambiri ndi lens. Ponena za kufanana, lens ndi yapamwamba kuposa yowonetsera.
2. Zotsatira zogwiritsira ntchito kansalu kakang'ono ka LED ndi bwino kusiyana ndi mthunzi wa nyali chifukwa nyaliyo yakhala ikugwiritsidwa ntchito kudzera mu lens (ndipo LED yokha iyenera kukhala ndi mandala), ndiyeno imayikidwa ndi reticle, kupanga yunifolomu yowunikira. malo okulirapo ndikuwononga kuwala kochuluka. Koma ndi mandala a LED, mitundu yonse komanso mbali ya kuwala kwa mandala amatha kugwiridwa bwino.