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1. led背心 - 購物搜尋結果

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2. en.wikipedia.org › wiki › Light-emitting_diodeLight-emitting diode - Wikipedia

   en.wikipedia.org › wiki › Light-emitting_diode

   • 庫存頁面

   A light-emitting diode ( LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons.

3. en.wikipedia.org › wiki › LED_circuitLED circuit - Wikipedia

   en.wikipedia.org › wiki › LED_circuit

   • 庫存頁面

   In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). The circuit must provide sufficient current to light the LED at the required brightness, but must limit the current to prevent damaging the LED.

4. 其他人也問了

   Who makes LED lights in Taiwan?

   • By 2006, Everlight was Taiwan's largest manufacturer of light-emitting diodes (LEDs), producing 1.850 billion units every month, and employing 4,000 people. In 2007, 40% of Everlight's revenue was derived from LEDs used for backlighting of mobile phones, and it also began to expand into backlight LEDs for laptop computers and televisions.

   Everlight Electronics - Wikipedia

   en.wikipedia.org/wiki/Everlight_Electronics

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   Are LED lights forward-biased?

   • Unlike incandescent light bulbs, which illuminate regardless of the electrical polarity, LEDs will only light with the correct electrical polarity. When the voltage across the p-n junction is in the correct direction, a significant current flows and the device is said to be forward-biased.

   LED circuit - Wikipedia

   en.wikipedia.org/wiki/LED_circuit

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   How does a reverse bias LED light work?

   • An LED begins to emit light when more than 2 or 3 volts is applied in the forward direction. The reverse bias region uses a different vertical scale from the forward bias region to show that the leakage current is nearly constant with voltage until breakdown occurs. In forward bias, the current starts small but increases exponentially with voltage.

   Light-emitting diode physics - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode_physics

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   What is a bi-color led?

   • The most common bi-color combination is red/traditional green. Others include amber/traditional green, red/pure green, red/blue, and blue/pure green. Tri-color LEDs contain three different LED emitters in one case. Each emitter is connected to a separate lead so they can be controlled independently.

   Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

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5. en.wikipedia.org › wiki › Light-emitting_diode_physicsLight-emitting diode physics - Wikipedia

   en.wikipedia.org › wiki › Light-emitting_diode_physics

   • 庫存頁面

   Light-emitting diodes (LEDs) produce light (or infrared radiation) by the recombination of electrons and electron holes in a semiconductor, a process called "electroluminescence". The wavelength of the light produced depends on the energy band gap of the semiconductors used.

6. en.wikipedia.org › wiki › Shuji_NakamuraShuji Nakamura - Wikipedia

   en.wikipedia.org › wiki › Shuji_Nakamura

   • 庫存頁面

   Shuji Nakamura (中村 修二, Nakamura Shūji, born May 22, 1954) is a Japanese-American electronic engineer and inventor of the blue LED, a major breakthrough in lighting technology. [5] .

7. en.wikipedia.org › wiki › LED_strip_lightLED strip light - Wikipedia

   en.wikipedia.org › wiki › LED_strip_light

   • 庫存頁面

   An LED strip, tape, or ribbon light is a flexible circuit board populated by surface-mount light-emitting diodes (SMD LEDs) and other components that usually comes with an adhesive backing. Traditionally, strip lights had been used solely in accent lighting, backlighting, task lighting, and decorative lighting applications, such as cove lighting .

8. en.wikipedia.org › wiki › Everlight_ElectronicsEverlight Electronics - Wikipedia

   en.wikipedia.org › wiki › Everlight_Electronics

   • 庫存頁面

   Everlight Electronics Co., Ltd. is a Taiwanese company which manufactures light-emitting diodes (LEDs). It is the world's fifth largest LED package manufacturer.

9. en.wikipedia.org › wiki › Superluminescent_diodeSuperluminescent diode - Wikipedia

   en.wikipedia.org › wiki › Superluminescent_diode

   • 庫存頁面

   A superluminescent diode ( SLED or SLD) is an edge-emitting semiconductor light source based on superluminescence. It combines the high power and brightness of laser diodes with the low coherence of conventional light-emitting diodes. Its emission optical bandwidth, also described as full-width at half maximum, can range from 5 up to 750 nm. [1]