LED
Selelekela
Light-emitting diode (LED) ke mohloli oa mabone a semiconductor a etellang pele tse peli. Ka 1962, Nick Helenak oa General Electric o ile a hlahisa diode ea pele e sebetsang e bonahalang e ntšang khanya.
LED e na le chip ea thepa ea semiconducting e kopantsoeng le litšila ho theha pn junction. Joalo ka li-diode tse ling, hona joale ho phalla habonolo ho tloha ka lehlakoreng la p, kapa anode, ho ea n-side, kapa cathode, empa eseng ka lehlakoreng le ka morao.
Tsoelo-pele ea LED e qalile ka lisebelisoa tsa infrared le tse khubelu tse entsoeng ka gallium arsenide. Tsoelo-pele ea mahlale a thepa e nolofalelitse ho etsa lisebelisoa tse nang le maqhubu a makhutšoane, tse ntšang khanya ka mebala e fapaneng..
Leseli la LED ka har'a Mainstream
Ha re ntse re sheba 'maraka, mabone a Halogen (HID) a tumme e le mohloli oa khanya oa lebala la basketball ka ntle bakeng sa nako e itseng. Mabone a Halogen a sebelisoa haholo libotong tse kholo tsa kantle, liteishene, liteisheneng, likhoebong tsa indasteri le tsa meepo, joalo-joalo, 'me a kenngoa ka har'a mabone a lebala la basketball a kantle, lebala le tloaelehileng la kantle la basketball (limithara tse 32x19), ka melemo ea khanya e phahameng, e khanyang e khanyang. bokgoni le tlhokomelo e bonolo. Ka mabone a halogen a 4-6 a ka bang 400W, e ka fihlela litlhoko tsa mabone a lebala la basketball ka botlalo. Mabone a Halogen a boetse a na le melemo ea mefuta e mengata e telele, matla a matla a phunyeletsang le khanya e ts'oanang, e le hore tšebeliso ea palo e nyenyane ea mabone a kentsoeng hōle le lehlakoreng la thupelo e ka boela ea finyella litlhoko tsa mabone tsa lebala la basketball. Bothata ba mabone a halogen ke hore matla a batla a le maholo, tekanyo ea tšebeliso ea matla ha e phahame, 'me matla a khanya a phahame haholo. Ho pepesehela khanya e joalo ka nako e telele ho tla ama kahlolo ea pono ea moatlelete.
E le khetho e tloaelehileng ea mabone a ka ntle, mabone a likhohola a LED a khethoa bakeng sa ho khantša ka ntle ka lebaka la tšebeliso ea eona e tlaase ea matla, boholo bo fokolang, boima bo bobebe le bokhoni bo phahameng ba khanya. Tšebeliso e atileng ea mabone a likhohola tsa LED tšimong ea mabone a mabone a kantle a basketball a kantle a hlahile haufinyane. Sebakeng sa mabone a ka ntle, li-LED li ka boloka matla a 50% ho isa ho 90% ha a bapisoa le mabone a ho ntša khase ea khatello e phahameng (HID). Litsenyehelo tsa pele li ka etsa hore beng ba bang ba nahanang ka ntlafatso ba tsilatsile, empa phello ea ho boloka matla a LED e bohlokoa, 'me ho tsosolosa ho ka finyelloa nakong ea selemo se le seng ho isa ho tse tharo. Tsela e 'ngoe ea ho boloka litšenyehelo ho LED ke ho fokotsa tlhokahalo ea tlhokomelo.
Hang ha lebone la tšepe la halide le nkeloa sebaka, hangata le ka tlase ho 50% ea khanya ea pele. Sena se bolela hore li fana ka boemo ba khanya bo tlase haholo ho feta boqapi ba bona ba pele 'me hangata bo hlahisa phello e tsepamisitsoeng. Ka lehlakoreng le leng, li-LED tsa kajeno li na le tekanyo ea tlhokomelo ea lumen e fetang 95% ka mor'a lihora tse 60,000, e lekaneng ho boloka maemo a mabone a bosiu a fetang lilemo tse 14.