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The lux (symbol: lx) is the SI derived unit of illuminance, measuring luminous flux per unit area. It is equal to one lumen per square metre. In photometry, this is used as a measure of the intensity, as perceived by the human eye, of light that hits or passes through a surface. It is analogous to the radiometric unit watt per square metre, but with the power at each wavelength weighted according to the luminosity function, a standardized model of human visual brightness perception.
Otsu | |
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| Population | 341314 |
Ōtsu (大津市, Ōtsu-shi) is the capital city of Shiga Prefecture, Japan. Ōtsu is known as the main port of Lake Biwa, the largest lake in Japan. It briefly served as the capital of Japan from 667 to 672 AD during the Asuka period (538 – 710). The city is home to numerous sites of historical importance, notably the temples of Mii-dera, Ishiyama-dera, and Enryaku-ji and the Hiyoshi Taisha shrine. Enryaku-ji is part of the UNESCO World Heritage Site "Historic Monuments of Ancient Kyoto (Kyoto, Uji and Otsu Cities)".
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