cd light unit

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cd light unit

The candela is the base unit of luminous intensity in the International System of Units (SI); that is, luminous power per unit solid angle emitted by a point light source in a ... A common candle emits light with roughly 1 cd luminous intensity. ,The candela per square metre (symbol: cd/m2) is the derived SI unit of ... ,Candela (cd), unit of luminous intensity in the International System of Units (SI), ... The candela has replaced the standard candle or lamp as a unit of luminous ... ,In units of candelas per watt (cd/W), therefore, the relative luminous efficacy of the two-lamp unit is 1540/60 = 25.67 cd/W. The four-lamp unit draws 120 W and ... ,A related unit of luminance, the foot-lambert, is used in the lighting, cinema and flight simulation industries. The SI unit is the candela per square metre (cd/m2). ,A full sphere has a solid angle of 4π steradians, so a light source that uniformly radiates one candela in all directions has a total luminous flux of 1 cd × 4π sr = 4π ... ,The SI unit of luminous intensity is the candela (cd), an SI base unit. Photometry deals with the measurement of visible light as perceived by human eyes. The ... ,The lux (symbol: lx) is the SI derived unit of illuminance, measuring luminous flux per unit area. ... A flux of 1000 lumens, spread uniformly over an area of 1 square metre, lights up that square metre ... Luminance, Lv, candela per square metre, cd/m2, ,The stilb (sb) is the CGS unit of luminance for objects that are not self-luminous. It is equal to ... Luminance, Lv, candela per square metre, cd/m2, L−2J, Luminous flux per unit solid angle per unit projected source area. The candela per square ...

相關軟體 f.lux 資訊

f.lux
f.lux 解決了這個問題:它使得你的電腦顯示器的顏色適應一天中的時間,白天溫暖,並且像白天一樣. 甚至可能因為你的電腦而熬夜。你可以使用 f.lux,因為它讓你睡得更好,或者只是因為它讓你的電腦看起來更好,所以才會使用它. 注意到人們在晚上發短信的方式有那麼可怕的藍光?或者準備好準備寫下下一個好主意,並讓你的電腦屏幕蒙上雙眼? 在白天,電腦屏幕看起來不錯 - 它們的設計看起來像太陽。但是,在晚上... f.lux 軟體介紹

cd light unit 相關參考資料
Candela - Wikipedia

The candela is the base unit of luminous intensity in the International System of Units (SI); that is, luminous power per unit solid angle emitted by a point light source in a ... A common candle emit...

https://en.wikipedia.org

Candela per square metre - Wikipedia

The candela per square metre (symbol: cd/m2) is the derived SI unit of ...

https://en.wikipedia.org

Candela | SI unit of measurement | Britannica

Candela (cd), unit of luminous intensity in the International System of Units (SI), ... The candela has replaced the standard candle or lamp as a unit of luminous ...

https://www.britannica.com

Emergency Vehicle Warning Lights: State of the Art

In units of candelas per watt (cd/W), therefore, the relative luminous efficacy of the two-lamp unit is 1540/60 = 25.67 cd/W. The four-lamp unit draws 120 W and ...

https://books.google.com.tw

Lambert (unit) - Wikipedia

A related unit of luminance, the foot-lambert, is used in the lighting, cinema and flight simulation industries. The SI unit is the candela per square metre (cd/m2).

https://en.wikipedia.org

Lumen (unit) - Wikipedia

A full sphere has a solid angle of 4π steradians, so a light source that uniformly radiates one candela in all directions has a total luminous flux of 1 cd × 4π sr = 4π ...

https://en.wikipedia.org

Luminous intensity - Wikipedia

The SI unit of luminous intensity is the candela (cd), an SI base unit. Photometry deals with the measurement of visible light as perceived by human eyes. The ...

https://en.wikipedia.org

Lux - Wikipedia

The lux (symbol: lx) is the SI derived unit of illuminance, measuring luminous flux per unit area. ... A flux of 1000 lumens, spread uniformly over an area of 1 square metre, lights up that square met...

https://en.wikipedia.org

Stilb (unit) - Wikipedia

The stilb (sb) is the CGS unit of luminance for objects that are not self-luminous. It is equal to ... Luminance, Lv, candela per square metre, cd/m2, L−2J, Luminous flux per unit solid angle per unit...

https://en.wikipedia.org