Histori ea LED: Ho tloha ho Discovery ho ea ho Revolution

Tšimoloho

Lilemong tsa bo-1960, bo-rasaense ba ile ba hlahisa LED ho latela molao-motheo oa semiconductor PN junction. LED e hlahisitsoeng ka nako eo e ne e entsoe ka GaASP mme 'mala oa eona o khanyang o ne o le khubelu. Ka mor'a lilemo tse ka bang 30 tsa tsoelo-pele, re tloaelane haholo le LED, e ka ntšang mebala e khubelu, ea lamunu, e mosehla, e tala, e putsoa le e meng. Leha ho le joalo, LED e tšoeu bakeng sa mabone e ile ea ntlafatsoa feela ka mor'a 2000. Mona re kenyelletsa LED e tšoeu bakeng sa ho khantša.

Tsoelo-pele

Mohloli oa pele oa leseli la LED o entsoeng ka semiconductor PN junction light emission molao-motheo o ile oa hlahisoa mathoasong a lilemo tsa bo-1960. Thepa e neng e sebelisoa ka nako eo e ne e le GaAsP, e ntšang leseli le khubelu ( λ P = 650nm), ha motlakase oa koloi e le 20mA, khanya e khanyang ke likete tse 'maloa feela tsa lumen,' me ts'ebetso e lumellanang ea optical e ka bang 0.1 lumen / watt.

Bohareng ba lilemo tsa bo-1970, likarolo tsa In le N li ile tsa hlahisoa ho etsa hore LED e hlahise leseli le letala （ λ P=555nm), leseli le mosehla ( λ P=590nm) le lebone la lamunu ( λ P = 610nm).

Mathoasong a lilemo tsa bo-1980, mohloli oa leseli la GaAlAs LED o ile oa hlaha, o etsa hore khanya e khanyang ea LED e khubelu e fihle ho 10 lumens/watt.

Mathoasong a lilemo tsa bo-1990, lisebelisoa tse peli tse ncha, GaAlInP e ntšang khanya e khubelu le e mosehla le GaInN e ntšang leseli le letala le leputsoa, ​​​​li ile tsa ntlafatsoa ka katleho, tse ileng tsa ntlafatsa haholo katleho e khanyang ea LED.

Ka 2000, LED e entsoeng ka pele e ne e le libakeng tse khubelu le tsa lamunu ( λ P = 615nm), 'me LED e entsoeng ka morao e sebakeng se setala ( λ P = 530nm).

Leseli Chronicle

- 1879 Edison o ile a qapa lebone la motlakase;

- 1938 lebone la Fluorescent le ile la tsoa;

- 1959 lebone la Halogen le ile la tsoa;

- 1961 lebone le phahameng la sodium le ile la tsoa;

- 1962 lebone la Metal halide;

- 1969, lebone la pele la LED (le khubelu);

- 1976 lebone la LED le tala;

- 1993 lebone la LED le leputsoa;

- 1999 lebone le lesoeu la LED;

- 2000 LED e tla sebelisoa bakeng sa mabone a ka hare.

- Nts'etsopele ea LED ke phetoho ea bobeli kamora nalane ea lilemo tse 120 ea mabone a mabone.

- Mathoasong a lekholo la bo21 la lilemo, LED, e ntlafalitsoeng ka ho kopana ho makatsang pakeng tsa tlhaho, batho le mahlale, e tla fetoha ntho e ncha lefatšeng la leseli le phetoho ea bohlokoa ea theknoloji e tala bakeng sa moloko oa batho.

- LED e tla ba phetoho e kholo ea leseli ho tloha ha Edison a qapa lebone la lebone.

Mabone a LED ke mabone a nang le matla a phahameng a masoeu a LED a le mong. Bahlahisi ba lebone la LED ba ka holimo ho tse tharo lefatšeng ba na le waranti ea lilemo tse tharo. Likaroloana tse kholo li feta kapa li lekana le lumens tse 100 ka watt, 'me likaroloana tse nyane li feta kapa li lekana le lumens tse 110 ka watt. Likaroloana tse kholo tse nang le khanya ea leseli li ka tlase ho 3% ka selemo, 'me likaroloana tse nyane tse nang le khanya e tlase li tlase ho 3% ka selemo.

Mabone a letamo la ho sesa la LED, mabone a ka tlas'a metsi a LED, mabone a seliba sa LED, le mabone a kantle a naha a LED a ka hlahisoa ka bongata. Ka mohlala, lebone la fluorescent la LED la 10-watt le ka nka sebaka sa lebone le tloaelehileng la fluorescent la 40-watt kapa lebone la ho boloka matla.