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Besaran cahaya: Perbedaan antara revisi

Ensiklopedia Pengetahuan Universitas Islam Sultan Agung

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Impor teks terkontrol dari Wikipedia bahasa Indonesia; revisi 18623951; atribusi sumber disertakan.
 
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Presentation V4: sitasi, referensi, Math, Wikimedia Commons, dan atribusi
 
Baris 1: Baris 1:
== Satuan besaran [[cahaya]] ==
== Satuan besaran [[cahaya]] ==
 
{| class="wikitable" width="100%"
|-
!colspan="5"|SI radiometry units
|-
| '''Quantity'''
| '''Symbol'''
| '''SI unit'''
| '''Abbr.'''
| '''Notes'''
|-
| Radiant energy
| ''Q''
| joule
| J
| [[energy]]
|-
| Radiant flux
|
| watt
| W
| radiant energy per unit time, also called ''radiant power''
|-
| Radiant intensity
| ''I''
| watt/steradian
| W.sr<sup>−1</sup>
| power per unit solid angle
|-
| Radiance
| ''L''
| watt/steradian/square meter
| W.sr<sup>−1</sup>.m<sup>−2</sup>
| power per unit solid angle per unit ''projected'' source area called ''intensity'' in some other fields of study
|-
| Irradiance
| ''E'', ''I''
| watt/square meter
| W.m<sup>−2</sup>
| power incident on a surface, sometimes confusingly called ''intensity''
|-
| Radiant exitance / Radiant emittance
| ''M''
| watt/square meter
| W.m<sup>−2</sup>
| power emitted from a surface
|-
| Radiosity
| ''J'' or ''J''<sub><math>\lambda</math></sub>
| watt/square meter
| W.m<sup>−2</sup>
| emitted plus reflected power leaving a surface
|-
| Spectral radiance
| ''L''<sub><math>\lambda</math></sub> or ''L''<sub>v</sub>
| watt/steradian/meter<sup>3</sup> or watt/steradian/square meter/hertz
| W.sr<sup>−1</sup>.m.<sup>−3</sup> or W.sr<sup>−1</sup>.m<sup>−2</sup>.Hz<sup>−1</sup>
| commonly measured in W.sr<sup>−1</sup>.m<sup>−2</sup>.nm<sup>−1</sup>
|-
| Spectral irradiance
| ''E''<sub><math>\lambda</math></sub> or ''E''<sub>v</sub>
| watt/meter<sup>3</sup> or watt/square meter/hertz
| W.m<sup>−3</sup> or W.m<sup>−2</sup>.Hz<sup>−1</sup>
| commonly measured in W.m<sup>−2</sup>.nm<sup>−1</sup>
|-
!colspan="5"|SI photometry units
|-
| '''Quantity'''
| '''Symbol'''
| '''SI unit'''
| '''Abbr.'''
| '''Notes'''
|-
| Luminous energy
| ''Q''<sub>v</sub>
| lumen second
| lm.s
| units are sometimes called talbots
|-
| Luminous flux
| ''F''
| lumen (= cd.sr)
| lm
| also called ''luminous power''
|-
| Luminous intensity
| ''I''<sub>v</sub>
| candela (=lumen/sr)
| cd
| an SI base unit
|-
| Luminance
| ''L''<sub>v</sub>
| candela/square meter
| cd/m<sup>2</sup>
| units are sometimes called "nits"
|-
| Illuminance
| ''E''<sub>v</sub>
| lux (= lm/m<sup>2</sup>)
| lx
| used for light incident on a surface
|-
| Luminous emittance
| ''M''<sub>v</sub>
| lux (= lm/m<sup>2</sup>)
| lx
| used for light emitted on a surface
|-
| Luminous efficacy
|
| lumen/watt
| lm/W
| ratio of luminouos flux to radiant flux
|}


== Sumber Cahaya ==
== Sumber Cahaya ==
Baris 25: Baris 138:
* [[radioactivitas|peluruhan radioaktif]]
* [[radioactivitas|peluruhan radioaktif]]
* anihilasi partikel-[[antipartikel]]
* anihilasi partikel-[[antipartikel]]
== Referensi ==


== Sumber dan atribusi ==
== Sumber dan atribusi ==


Konten artikel ini diadaptasi dari [https://id.wikipedia.org/w/index.php?title=Besaran+cahaya&oldid=18623951 Wikipedia bahasa Indonesia], revisi 18623951 (2021-07-07T05:50:48Z), yang tersedia berdasarkan lisensi Creative Commons Atribusi-BerbagiSerupa (CC BY-SA). Mohon gunakan konten ini secara bijak serta sesuai dengan ketentuan lisensi yang berlaku.
Konten artikel ini diadaptasi dari [https://id.wikipedia.org/w/index.php?title=Besaran+cahaya&oldid=18623951 Wikipedia bahasa Indonesia], revisi 18623951 (2021-07-07T05:50:48Z), yang tersedia berdasarkan lisensi Creative Commons Atribusi-BerbagiSerupa (CC BY-SA). Mohon gunakan konten ini secara bijak serta sesuai dengan ketentuan lisensi yang berlaku.
<!-- WIKI_UNISSULA_PRESENTATION_V4 -->

Revisi terkini sejak 26 Agustus 2026 03.58

Satuan besaran cahaya

SI radiometry units
Quantity Symbol SI unit Abbr. Notes
Radiant energy Q joule J energy
Radiant flux watt W radiant energy per unit time, also called radiant power
Radiant intensity I watt/steradian W.sr−1 power per unit solid angle
Radiance L watt/steradian/square meter W.sr−1.m−2 power per unit solid angle per unit projected source area called intensity in some other fields of study
Irradiance E, I watt/square meter W.m−2 power incident on a surface, sometimes confusingly called intensity
Radiant exitance / Radiant emittance M watt/square meter W.m−2 power emitted from a surface
Radiosity J or Jλ watt/square meter W.m−2 emitted plus reflected power leaving a surface
Spectral radiance Lλ or Lv watt/steradian/meter3 or watt/steradian/square meter/hertz W.sr−1.m.−3 or W.sr−1.m−2.Hz−1 commonly measured in W.sr−1.m−2.nm−1
Spectral irradiance Eλ or Ev watt/meter3 or watt/square meter/hertz W.m−3 or W.m−2.Hz−1 commonly measured in W.m−2.nm−1
SI photometry units
Quantity Symbol SI unit Abbr. Notes
Luminous energy Qv lumen second lm.s units are sometimes called talbots
Luminous flux F lumen (= cd.sr) lm also called luminous power
Luminous intensity Iv candela (=lumen/sr) cd an SI base unit
Luminance Lv candela/square meter cd/m2 units are sometimes called "nits"
Illuminance Ev lux (= lm/m2) lx used for light incident on a surface
Luminous emittance Mv lux (= lm/m2) lx used for light emitted on a surface
Luminous efficacy lumen/watt lm/W ratio of luminouos flux to radiant flux

Sumber Cahaya

Sumber dan atribusi

Konten artikel ini diadaptasi dari Wikipedia bahasa Indonesia, revisi 18623951 (2021-07-07T05:50:48Z), yang tersedia berdasarkan lisensi Creative Commons Atribusi-BerbagiSerupa (CC BY-SA). Mohon gunakan konten ini secara bijak serta sesuai dengan ketentuan lisensi yang berlaku.


Diperoleh dari "https://wiki.unissula.ac.id/index.php?title=Besaran_cahaya&oldid=12995"