On this page, we'll examine the technological know-how behind these ubiquitous blinkers, illuminating some awesome concepts of energy and light in the method.
Bentuk LED mirip dengan sebuah bohlam (bola lampu) yang kecil dan dapat dipasangkan dengan mudah ke dalam berbagai perangkat elektronika. Berbeda dengan Lampu Pijar, LED tidak memerlukan pembakaran filamen sehingga tidak menimbulkan panas dalam menghasilkan cahaya.
Electrons can bounce from gap to gap, relocating from a negatively billed location to a positively charged place. Because of this, the holes on their own look to move from the positively charged spot to a negatively billed region.
Insert some coloration to your life, come across accent lighting to match your temper, and remodel the feel of your own home Using these decorative connected units. —
The mechanical robustness and very long life time are Employed in automotive lights on cars, bikes, and bicycle lights. LED Avenue lights are utilized on poles and in parking garages. In 2007, the Italian village of Torraca was the first area to convert its Road lighting to LEDs.[ninety five]
With AlGaN and AlGaInN, even shorter wavelengths are achievable. In the vicinity of-UV emitters at wavelengths all over 360–395 nm are currently cheap and sometimes encountered, one example is, as black light lamp replacements for inspection of anti-counterfeiting UV watermarks in paperwork and lender notes, and for UV curing. Substantially more expensive, shorter-wavelength diodes are commercially readily available for wavelengths all the way down to 240 nm.
저가제품은 방열처리가 제대로 leuchtstoffröhre 150cm 되어있지 않거나 전원부가 부실해서 기존에 쓰던 형광등에 비해 더 빨리 고장나는 경우가 많다. 다른 전자제품도 마찬가지지만 저가의 제품은 폭발할 수도 있다.
The old days of choosing light-weight bulbs by wattage are above. With nowadays’s present day LED bulbs, we in its place ought to concentrate on lumens. But what on earth is a lumen? We’ll describe that, and then you can use our lumens to watts conversion chart to pick the appropriate LED bulb anytime.
[54] Numerous LED features in series might be able to operate directly from line voltage. In 2009, Seoul Semiconductor produced a large DC voltage LED, named 'Acrich MJT', effective at getting pushed from AC energy with a straightforward managing circuit. The lower-energy dissipation of those LEDs affords them far more adaptability than the first AC LED layout.[fifty five]
An LED is produced up of semiconductors, resources that could either perform or insulate electric power according to the circumstances. The semiconductor substance is often doped to build two areas:
A convoluted chip surface with angled facets much like a jewel or fresnel lens can boost gentle output by distributing gentle perpendicular to your chip area and far to the sides in the photon emission position.[five]
The reduced Electricity use, minimal routine maintenance and tiny sizing of LEDs has led to employs as position indicators and displays on an assortment of apparatus and installations. Significant-region LED shows are made use of as stadium displays, dynamic ornamental shows, and dynamic information indicators on freeways.
The progressive miniaturization of low-voltage lighting know-how, which include LEDs and OLEDs, appropriate to incorporate into low-thickness materials has fostered experimentation in combining light resources and wall masking surfaces for inside partitions in the form of LED wallpaper.
Cũng giống như diode, LED được cấu tạo từ một khối bán dẫn loại p ghép với một khối bán dẫn loại n.