Lub Physics ntawm Duab ntxoov ntxoo: dawsT-Zoo li Teeb Tsaus NtujNrog Asymmetric Optics
T-zoo li tus LED qhov muag teev ntsib ib qho kev tsis sib haum xeeb hauv qhov muag pom: lawv cov kab rov tav daim ntawv zoo ua rau kom muaj cua sov zoo tshaj plaws, tab sis tsim kom muaj qhov "dark zone" axial uas plagues downlight applications. Cov duab ntxoov ntxoo no tshwm sim los ntawm qhov tseem ceeb geometric txwv uas asymmetric lens tsim tshwj xeeb daws.
Anatomy ntawm Dark Zone
Thaum mounted puag- nqes (tus qauv taw qhia), T- lub teeb lub teeb tsim peb lub teeb- thaiv qhov teeb meem:
LED Qhov Chaw- COBs mounted kab rov tav nrum duab ntxoov ntxoo nqes
Heatsink Lub Cev- Central aluminium kem obstructs 30-40% ntawm cov pa tawm hauv qab
Reflective Losses - Light striking the bulb neck at >80℃qhov xwm txheej lub kaum sab xis qhia txog sab hauv
Kev tshwm sim: Ib qho 30-50℃conical void hauv qab lub teeb qhov twg illuminance poob los ntawm 70-90% piv rau lateral output.
Cov kev daws teeb meem niaj hnub & kev txwv
| Txoj kev | Cov nyhuv ntawm Dark Zone | Qhov tsis zoo |
|---|---|---|
| Diffuser Domes | 20-30% txo | 15-25% lumen poob, glare |
| Hauv qab SMD LEDs | 40% kev txhim kho | +30% thermal load, nqi ↑ 25% |
| Reflective Coatings | Yam tsawg kawg nkaus | Yellowing at >85 degree |
Asymmetric Lenses: Ib Qhov Kev Ua Haujlwm Photonic
Asymmetric TIR (Tag Nrho Internal Reflection) lo ntsiab muag tawm tsam qhov teeb meem los ntawm kev raug hluav taws xob hloov pauv:
Core Optical Strategy
Sab saum toj Hemisphere
Lub teeb tswj: Collimates rays nyob rau hauv 0-60℃cheeb tsam
Lens feature: Nce toj-faceted prisms (55-65℃kaum sab xis)
Hauv qab Hemisphere
Lub teeb tswj: Aggressively refracs lub teeb downward
Lens feature: Tsaus -angled Fresnel rings (12-18 degree)
Kev sib piv ntawm Txoj Kev Teeb:
Standard Lens:
Lub kaum sab xis → 0℃(axial): 85% kis tau tus mob
Lub kaum sab xis → 70℃(downward): 30% kis tau tus mob
Asymmetric Lens:
Lub kaum sab xis → 0 degree: 92% kis tau tus mob
Lub kaum sab xis → 70 degree: 78% kis tau tus mob
Proven Design: Lub Batwing Profile
High -cov kev daws teeb meem tau txaisbatwing luminous faib:
Peak siv30℃thiab 60℃(tsis yog 0 degree)
Tsaus cheeb tsam sau: Redirected photons los ntawm 100-120℃lateral aav
Kev ua tau zoo: Maintains >90% kev siv lub teeb vs . 70% hauv qhov muag teev
Case Study: 800lm E26 T-Bulb
| Parameter | Symmetric Lens | Asymmetric Lens |
|---|---|---|
| Axial illuminance (0 degree) | 3 5lux | 210 lux |
| L70 lub neej | 25,000 teev | 35,000 teev * |
| Beam uniformity | 1:8.5 | 1:2.3 |
| Kev ua tau zoo | 88 lm/w | 94 lm/wb |
| * Txo thermal load los ntawm tshem tawm SMDs |
Kev xav txog kev tsim khoom
Txhaj Molding
Dual -lub kaum sab xis xav tau sab- pwm ua haujlwm (+15% tus nqi siv)
Draft angles: >1℃ntawm Fresnel zones kom tsis txhob ua raws
Kev xaiv khoom
Optical -qib PMMA (92% kis tau tus mob)
UV-stabilized grades prevent yellowing (>50,000 teev)
Alignment Systems
Lens -rau -COB qhov chaw kam rau ua: ± 0.15mm
Robotic vision alignment pom zoo
Lub Physics Qab Qhov Kho
Asymmetric lo ntsiab muag sivSnell Txoj CaithiabTIR ciam teb tej yam kev mob:
Los ntawm txhob txwm ua kom muaj kev cuam tshuam qhov cuam tshuam ntawm qhov tsis sib xws (PMMA: 1.49, Cua: 1.0), hauv qab-facets ua tiav cov ces kaum tseem ceeb tsawg li 42.2℃. Qhov no ua rau huab cua bending tsis yooj yim sua nrog symmetric optics.
Thaum Symmetry Prevails
Asymmetric designs muaj kev sib pauv:
Lateral glare txaus ntshai: Yuav tsum tau micro-louvers rau 80℃+ kaum
Xim hloov: CCT variation mus txog 200K ntawm ntug zones
Tus nqi hwm: 18-22% siab dua cov qauv lo ntsiab muag
Rau omnidirectional qhov muag teev (A-puab), symmetric designs tseem nyiam dua.
Xaus: Precision Over Power
T- teeb pom kev tsaus ntuj tsis tau daws los ntawm kev ntxiv lumens, tab sis los ntawm kev hloov pauv cov photons uas twb muaj lawm los ntawm kev suav optics. Asymmetric lo ntsiab muag hloov pauv geometric tsis muaj zog rau hauv lub sijhawm los ntawm kev hloov cov qauv kev thaiv mus rau hauv lub teeb -cov lus qhia. Txoj hauv kev no qhia tau hais tias hauv kev teeb pom kev zoo siab, tswj lub teeb lub vector feem ntau tseem ceeb tshaj nws qhov ntau. Raws li T- qhov muag teev hloov zuj zus rau siab - cov ntawv thov muaj txiaj ntsig zoo li lub teeb pom kev hauv tsev cia puav pheej thiab cov teeb pom kev phais, asymmetric optical designs yuav dhau los ua tus qauv ntsuas - ua pov thawj tias qee zaum, lub teeb sib luag feem ntau yuav tsum txhob txwm tshaj tawm optics.
https://www.benweilight.com/lighting-tube-bulb/led-bulb-light/e27-b22-5w-60w-t-shape-mr16-bulb.html
