PowerPoint Presentationphysics.iut.ac.ir/sites/physics.iut.ac.ir/files/sessions/LED-Nobel.pdf · organic light-emitting diodes over time. ... polymers. Near the vertical axis, black

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کار بدیع و اثرگذار: جایزه نوبل

(دیودهای قرمز رنگ)کارآیی و قیمت

در گذر زمان LEDکاربردهای

Type

Luminous efficacy of radiation (lm/W)

Luminous efficiency[note 1]

Typical tungsten light bulb at 2800 K 15[7] 2%

Class M star (Antares, Betelgeuse), 3000 K 30 4%

Ideal black-body radiator at 4000 K 54.7[8] 8%

Class G star (Sun, Capella), 5800 K 93[7] 13.6%

Ideal black-body radiator at 7000 K 95[8] 14%

Ideal 5800 K black-body, truncated to 400–700 nm (ideal "white" source)[note 2]

251[7][note 3] 37%-

5800 K black-body truncated to ≥2% photopic sensitivity range[note 4] 292[9][10] 43%

2800 K black-body truncated to ≥2% photopic sensitivity range[note 4] 299[9][10] 44%

2800 K black-body truncated to ≥5% photopic sensitivity range[note 5] 343[9][10] 50%

5800 K black-body truncated to ≥5% photopic sensitivity range[note 5] 348[9][10] 51%

Ideal monochromatic 555 nm source 683[11] 100%

Luminous efficacy of radiation

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