Lub high-power LED lens / reflector

Lub high-power LED lens / reflector mas siv rau kev xav thiab kev taw qhia lub teeb ntawm high-power LED txias lub teeb khoom siv. Lub high-power LED lens tsim lub teeb nruam curve raws li lub kaum sab xis ntawm qhov sib txawv ntawm lub teeb tawm ntawm lub teeb ci, uas nce qhov kev xav ntawm qhov kho qhov muag, txo cov teeb poob, thiab pab txoj kev ua kom pom tseeb (thiab cov txheej txheem lem optical lens). Cov nram qab no tsom rua cov theem ob theem siab zog LED lo ntsiab muag rau PMMA cov ntaub ntawv. Cov hom khoom ntawm ib lub lens LED 1. Lemon Silicone; a. Vim hais tias silicone yog kub kub resistant (muaj peev xwm kuj yuav reflow soldered), nws yog feem ntau ntim ncaj qha rau ntawm tus nti LED; b. Lub dav hlau silicone yog me me hauv lub ntim, 3-10mm inch; 2, PMMA lens a. Optical qib PMMA (polymethyl methacrylate, nquag paub: acrylic) b. Cov ntaub ntawv yas, qhov zoo: cov khoom ua tau zoo heev (muaj peev xwm ua kom tiav los ntawm txhaj tshuaj molding); high transmittance (li ntawm 93% nkag mus rau ntawm 3mm thickness); tsis zoo: kub kub cev 70% (tshav kub kub kub 90 degrees); 3. PC lens a. Optical grade nylon Polycarbonate (hu ua PC) polycarbonate b. Cov ntaub ntawv yas, qhov zoo: cov khoom ua tau zoo tshaj (muaj peev xwm ua kom tiav los ntawm kev txhaj tshuaj molding) kub ua hauj lwm; (130 degrees lossis tshaj saud); tsis zoo: lub teeb hloov (87%); 4. Cov iav lens Optical iav khoom uas muaj lub teeb siab hloov siab (97%) thiab kub kub. Disadvantages: kev kho tsis taus, kev txhawj xeeb yog tsis yoojyim, ua kom tsis muaj zog, cov nqi siab. Daim ntawv thov kev faib tawm ntawm ob lo ntsiab muag LED 1. Lub lens lem a. Lub lens thawj yog encapsulated ncaj qha (los yog bonded) ntawm LED nti nrog thiab kev nrog LED; b. LED chip yog 360 degrees theoretically, tab sis lub nti yog tau tso rau ntawm lub yas dhos. Nws tuaj yeem tsau tau thiab ntim tau, yog li lub siab tshaj plaws ntawm lub nti lub siab yog 180 degree. Tsis tas li ntawd, tus nti yuav muaj qee qhov teeb pom kev zoo, yog li ntawd tag nrho cov teeb ntawm lub nti tau sau los ntawm ib lub lens thiab yuav tau txais 160 degrees, 140 degrees, 120 degrees, 90 degrees. Lub kaum sab xis ntawm lub teeb ntawm 60 degrees (kev xav tau sib txawv); c. Lub lens thawj yog feem ntau ua ntawm PMMA lossis silica gel. 2. Qib siab thib ob a. Lens theem ob thiab LED yog ob yam khoom siv, tab sis lawv muaj kev sib nkag siab thaum thov; b. Lub lens kev ua haujlwm rov qab ua kom pom lub LED lub qhov rooj loj (feem ntau 90-120 degrees) Lub teeb yog 5 degrees txog 80 degrees, txhua lub siab nyiam; c. Cov khoom siv lens secondary feem ntau PMMA los yog iav. Peb lub LED lens specifications 1. Kev nqus (lens convex) a. Thaum lub teeb ci teeb ntawm lub lens los ntawm qhov nkhaus ntawm lub lens (ob chav convex muaj ib tug nkhaus ntws), lub teeb yuav tsum refracted thiab concentrated, thiab lub kaum sab xis yuav hloov thaum qhov kev ncua deb ntawm lub lens thiab cov LED yog kho. Tsuas yog, qhov chaw deg uas tsim los ntawm aspherical technology yuav tsum zoo heev, tab sis vim yog cov kev txwv ntawm lub lens taub, lub teeb nyob rau sab ntawm lub lens tsis siv (lub teeb tov); b. Feem ntau siv lub thawv loj loj (40-80 degrees), xws li cov teeb txawb, kev teeb nyob sab hauv tsev, thiab lwm yam .; Kev sib tw tag nrho (hom khob lossis hom khob) a. Qhov tsim ntawm lub lens yog yeem nyob rau hauv pem hauv ntej ntawm lub teeb ci, thiab qhov sib tov ntws tuaj yeem sau thiab pom txhua lub teeb sab nraud, thiab sib tshooj ntawm ob hom teeb (lub ntsej muag tib) tuaj yeem siv lub teeb zoo tshaj plaws siv thiab zoo nkauj hnov cov nyhuv; b. Nws tseem tuaj yeem hloov pauv ntawm qhov dej ntawm tapered lens, uas yuav tsim tau raws li daim iav, qhov chaw nti ntawm qhov tob, ntwv dej, ntu ntawm daim tawv nqaij, xov qhov chaw, kab tawm los yog cov qhov ntxa, thiab lwm yam. 3. Lub LED lens module a. yog lub lens lub ntsej muag uas yog tsim los ntawm kev txhaj tshuaj molding ntau tshaj ib zaug ntawm lo ntsiab muag, thiab tsim tau los ua 3, 1, 5, los sis xij kaum tseem ceeb ntawm lub lens modules raws li nyias txoj cai; b. Txuag txuag cov khoom tsim, ua kom sib luag ntawm cov khoom siv zoo, txuag qhov chaw hauv cov teeb pom kev zoo, thiab yooj yim dua "muaj hwj chim" thiab lwm yam ntxwv. Plaub Lens tsim thiab pwm ua thawj Ua ntej ntawm txhua qhov, nyob ntawm seb lub teeb ci li cas (high-power LED), siab zog LEDs ntawm ntau hom (xws li CREE, lumileds, Seoul, Osram, Edison, Changsen qhov chaw, thiab lwm yam). tus qauv ntim, ntim cov qauv, cov yam ntxwv ntawm lub teeb, thiab lwm yam. yuav txawv Qhov txawv, uas yuav ua rau tib lub lens kom haum rau cov lus qhia sib txawv ntawm cov hom LED yuav txawv; yog li ntawd yuav tsum tau nthuav kev tsim kho (hom khoom zoo), kom ua tau raws li qhov xav tau tiag tiag; Siv optical tsim software (xws li Trace pro, CodeV, Zemax, thiab lwm yam.) Los tsim thiab nqa tawm kev ua haujlwm zoo analog khiav, tsim coj qhov muag optical aspheric nto; Lub lens lwv nws tus kheej yog ib qho kev kho kom zoo tshaj plaws, yog li nws txoj kev txiav txim siab rau cov pwm muaj siab heev. Hauv particular, cov zauv ntawm kev kho qhov muag ntawm lub lens yuav tsum yog 0.1 μm thiab lub eccentricity ntawm lub lens yuav tsum tsis pub dhau 3 μm. Feem ntau, cov khoom siv xws li high-precision pwm yuav tsum muaj cov khoom nram qab no: Ultra-precision machining cav tov (piv txwv li: PRECITECH NANOFORM 350), CNC kev machining machine, nto grinders, milling cav, CNC fais cav tov, nto profileometers, thiab lwm yam 4. Qhov tseeb tshaj plaws ntawm cov mould lies nyob rau hauv qhov kho qhov muag pwm. Ua ntej, qhov tshwj xeeb pwm steel yog siv los ua tiav cov pib embryo. Tom qab nickel plating, cov nplaum yog machined los ntawm kev siv technology uas siv ultra-precision tshuab. Tsib lens khoom thiab ntau lawm 1. Raws li qhov khoom siv qib siab kho qhov muag, LED lo ntsiab muag muaj qhov xav tau ntawm lub teeb kis mus rau thiab dej ntsws. Cov khoom nyhav feem ntau yog qib high school qib qib PMMA. Tam sim no, cov Japanese Mitsubishi PMMA khoom yog qhov zoo tshaj plaws (tam sim no VH5 thiab VH001 yog cov zoo tshaj), thiab tib yam yog Mitsubishi Nantong khoom yuav tsawg dua; Nws yuav tsum tau nruab nrog rhiav plua plav dawb ntawm 10,000 lossis siab dua. Cov neeg tsav tsheb yuav tsum tau hnav khaub ncaws tiv thaiv zoo li qub, tiv thaiv kom zoo li qub thiab plua plav xws li hnav cov ntiv tes hnav thiab lub qhov ncauj qhov ntswg, thiab soj ntsuam thiab ntxuav cov kev cob qhia; Yuav tsum muaj kev kho qhov muag tshuaj molding tshuab (fais fab) xws li Farak, Toyo, Haitian, Jiaming thiab lwm yam khoom muaj hwjchim tshaj 35T, thiab tswj kev txhaj tshuaj thiab lub sijhawm, txo cov khoom tshuaj, thiab yuav tsum tsis ntxiv cov khoom siv hluavtaws kom rov qab siv dua, kom thiaj li ua tau cov khoom Ntau tshaj nyob rau hauv txoj kab nrog cov tsim; 4. Cov khoom yuav tsum muab ntim rau hauv PVC, thiab yuav tsum muab ntim rau hauv. Kev khaws cia yuav tsum raug tswj kom tswj tau qhov kub thiab txias, thiab nws yog qhov zoo tshaj uas tsis pub khaws cia rau ntau tshaj ib xyoos. Fresnel lens Kuj hu ua daim iav tsom iav, lub lens muaj ib qho "kauj ruam" zoo li lub ntsej muag tsis ua haujlwm. Cov "staircase" muaj ntau hom concentric annular bands, tseem hu ua ringing lenses. Thaum ib qho khoom siv nyob deb li cas los ntawm Fresnel lens, daim duab ntawm tus kwv yog txaij, thiab ua kom muaj qhov sib txawv ntawm qhov pib thaum pom cov khoom ze. Muaj ob txoj haujlwm Fresnel ua haujlwm: ib qho yog qhov tseem ceeb, uas yog qhov teebmeem pyroelectric infrared (refracted) ntawm PIR, thiab qhov thib ob kev ua haujlwm yog sib faib ua chaw rau ntau qhov chaw qiv thiab tsaus ntiag tug mus nkag thaj chaw . Cov khoom txav tuaj yeem tsim qhov teeb meem pyroelectric infrared teeb liab ntawm PIR nyob rau hauv daim ntawv ntawm kev hloov kub. Fresnel lo ntsiab muag, nyob rau hauv cov lus yooj yooj yim, muaj equidistant ridges on ib sab ntawm lub lens. Los ntawm cov kev ridges, bandpass (reflection los yog refraction) ntawm qhov kev pom spectral ntau yuav tsum tiav. Tsoos Polishing ntawm cov cuab yeej siv kho qhov muag Bandpass optical lim yog kim los ua khoom lag luam. Fresnel lo ntsiab muag tau txo cov nqi. Ib qho piv txwv raug yog PIR (Passive Infrared Detector). PIR yog dav siv hauv kev ceeb toom. Yog tias koj saib, koj yuav pom ib lub taub hau yas ntawm txhua tus PIR. Qhov no yog Fresnel lens. Sab hauv ntawm lub kaus mom me me yog sau nrog tus qauv hniav. No Fresnel lens txwv ntau tshaj qhov teeb meem ntawm qhov teeb meem rau ntawm 10 microns (lub ncov ntawm cov tib neeg tawg paj tawg). Tus nqi qis heev. Muaj ntau hom Fresnel lo ntsiab muag, thiab lawv geometry, nrhiav lub kaum, focal ntev, thiab siv kuj sib txawv. Lens Fresnel lo ntsiab muag yuav ua tau kom qis qis hauv cov pawg hauv qab no. 1. Lub lens. Nws yog hom ntau hom lens. Piv txwv, qhov loj ntawm 0-6 yog 68 X 38 hli, lub focal ntev yog 29 hli, lub kaum sab xis tav toj yog 12And, thiab lub voj qaum yog 8O. Qhov kev tshawb nrhiav nrug yog tshaj 1am; qhov loj ntawm 0-1A yog 58.8 X 45mm thiab txoj kab rov tav yog 85., lub kaum sab xis 450. Qhov kev ntsuas kom pom tseeb yog siab tshaj 1 OM. 2. Hemispherical lens. Haum rau lub qab nthab, yog tsim los ua ib qho khoom me me, 4-56 tuaj yeem siv raws li lub qab nthab, tsis siv lub qhov rooj thiab lwm yam. Xws li: Q-8 hom hemispherical lens, diameter ntawm 24mm, kab rov tav ntawm 1 000, kab pib ntsig txog 600, nrhiav pom ntawm 3-5m; Ntxiv rau, RS-8 hom hemispherical lens. 3. Kab rov tav flaky puab. Cov lo ntsiab muag no yog tsim tshwj xeeb, xws li SC-62 lens, nrog ib qho kev paub tias thaj tsam ntawm ob theem ntawm 1o0o thiab ib feem ntawm 1.91. Lub dav hlau nqaim mus rau ob lub siab-sensitive sensors, uas yog tshwj xeeb tshaj yog rau kev saib xyuas ib theem; SC-82 lens, kab rov tav kaum 140o, ntsug 120, lub ntsuas tau siv kom tsis txhob cuam tshuam los ntawm cov tsiaj nyeg me me hauv av. Txij li thaum lub kaum sab xis ntawm lub lens xws li loj, lub kaum sab xis qaum yog me heev. Yog li ntawd, nws yog qhov tsim nyog rau kev kuaj xyuas ntawm lub sijhawm tshwj xeeb. 4. Laws qus. Piv txwv, lub kaum sab xis ntawm lub BS-05 lens tsuas yog 50, uas tsim tau ib thaj chaw ntev paub. Nws muaj kev tshawb nrhiav ntev ntev thiab ib qho kev pom zoo ntawm ntau tshaj 30m. Nws yog tsim rau kev ncua ntev thiab cov ntaub ntawv me me xws li txoj kev hauv tsev thiab cov ntawv cim ntev. 5. Cov teeb meem los tiv thaiv teeb meem. General-purpose lo ntsiab muag yog tsim los ntawm polyethylene, thiab vim lawv siab transparency, lawv cov susceptible rau malfunction vim muaj zog lub teeb cuam cuam. Txhawm kom txhim kho kev muaj peev xwm ntawm lub lens, qee qhov additives yog ntxiv rau cov khoom ua ib hom xim dawb los sis dub, uas dub yog feem ntau txaus. Tom qab qhov kev kuaj xyuas, yog tias nws tau nruab nrog tus kab ob-mem tes cov kab, nws cov teeb meem cuam tshuam los ntawm kev cuam tshuam los ntawm lub teeb meem muaj peev xwm ncav cuag 10000Lx (lux), deb tshaj lub teb chaws. Tsom iav dub xws li 8S-94V3, cov dawb lo ntsiab muag dawb yog 0 X-1, QX-1A, thiab lwm yam. Fresnel qhov khoom loj tshaj plaws nyob rau xyoo 19th, Fresnel lens, yog ib daim ntawv uas ua los ntawm polyolefin khoom. Qhov lens yog du ntawm ib sab thiab lub voj voog thooj ntawm sab nraud yog me me loj. Nws txoj kev ntxhib los mos yog tsim los siv cov kev cuam tshuam ntawm lub teeb thiab cov kev sib raug zoo ntawm lub cev thiab kev txais lub kaum ntse ntse. Lub lens yog heev xav tau. Lub lens zoo yuav tsum muaj ib qhov dej saum npoo thiab ib qho kev ntxhib los mos. Nws cov tuab yog feem ntau nyob ib ncig ntawm 1 hli. Qhov chaw loj, thin thickness thiab ntev nrhiav pom. Fresnel lens yuav tsom tau lub teeb kis mus los ntawm lub tshuab nqaim lim-lim cuam tshuam rau ntawm qhov chaw ntim ntawm lub silicon photodiode ntes. Lub Fresnel lens yog ua los ntawm cov lus qhuab qhia thiab tsis tuaj yeem ua nrog cov kua organic (xws li haus cawv). Thaum tshem cov plua plav, yaug nrog cov dej sib txawv los yog cov dej huv uas tsis huv, ua ntej so nrog paj rwb. Cov vijtsam tam sim no tseem muaj frosted iav Fresnel lo ntsiab muag nrog qhov zoo ntawm kev ci ntsa iab thiab teeb pom kev zoo. Thaum ua kom pom tseeb tsis muaj tseeb, daim duab ntawm lub ntsej muag tseem tsis pom tseeb. Yuav kom pom tseeb ntxiv, ib qho duab split thiab micro-nplhaib ntaus feem ntau yog nruab rau hauv qhov chaw ntawm lub ntsej muag. Thaum qhov tseem ceeb tsis muaj tseeb, daim duab ntawm lub ntsiab lus nyob rau hauv qhov chaw ntawm qhov kev tshuaj ntsuam xyuas yog muab faib ua ob qho duab. Thaum ob qhov sib cais ua ke muab tso ua ib qho, qhov tseem ceeb yog qhov tseeb. Qhov kev ntsuas ntawm tus AF SLR feem ntau tsis muaj qhov cuab yeej sib faib, tab sis ib daim duab me me yog muab sau rau cheeb tsam AF, thiab qee cov ntsiab lus tseem ceeb yog muab sau nrog ib qho kev ntsuas los yog qhov chaw ntsuas qhov chaw. Thaum AFR thaum ntxov ua kom muaj huab cua zes, feem ntau nyuaj rau pom tus qauv. Nws yog ib qho nyuaj rau kev txiav txim siab uas taw tes rau lub koob yees duab yog siv los ua tus taw tes ua kom pom tseeb. Qhov ua kom pom tseeb ntawm tus tshiab-generation SLR focusing screen yuav ci los yog muaj lub suab lus kom pom tseeb. Cov tswv yim kom paub meej tias qhov tseem ceeb hauv cov cheeb tsam. Cov kev sib tw ntawm cov ntsej muag txawv nyias muaj nyias qhov kev siv, cov duab thaij duab yuav zoo dua nrog cov voj voos tsom duab, tsom cov ntxaij voj kab nrog kab rov tav los yog cov nplai rau cov duab thaij thiab daim ntawv tseem ceeb; qhov nruab nrab tsis muaj cov kab nrawm tab sis tsuas yog lub micro-npoo Qhov kev tshuaj ntsuam tsim rau me me lo ntsiab muag, nws tsis muaj qhov tsis zoo ntawm kev cais ib sab thiab ci ntsa ib sab. Ntau lub koob yees duab focal ntxaij tau hloov los ntawm tus neeg siv. Kuj hu ua lens threaded.