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  1. Largan Precision Company Limited or Largan Precision ( Chinese: 大立光電股份有限公司) is a Taiwanese company with its headquarters in Nantun District, Taichung City.

  2. en.wikipedia.org › wiki › LidarLidar - Wikipedia

    Lidar ( / ˈlaɪdɑːr /, also LIDAR, LiDAR or LADAR, an acronym of "light detection and ranging" [1] or "laser imaging, detection, and ranging" [2]) is a method for determining ranges by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver.

  3. en.wikipedia.org › wiki › LightLight - Wikipedia

    Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. [1] Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz. The visible band sits adjacent to the infrared ...

  4. The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate bands, with different names for the electromagnetic waves within each band.

  5. The Yongchun dialect (simplified Chinese: 永春话; traditional Chinese: 永春話; Pe̍h-ōe-jī: Éng-chhun-ōe) is a dialect of the Hokkien language mostly spoken in Yongchun County of Quanzhou city in Southern Fujian Province, China. It belongs to the Quanzhou Hokkien branch.

  6. The theory of relativity usually encompasses two interrelated physics theories by Albert Einstein: special relativity and general relativity, proposed and published in 1905 and 1915, respectively. [1] Special relativity applies to all physical phenomena in the absence of gravity. General relativity explains the law of gravitation and its ...

  7. Numerical value, notation, and units The speed of light in vacuum is usually denoted by a lowercase c, for "constant" or the Latin celeritas (meaning 'swiftness, celerity'). In 1856, Wilhelm Eduard Weber and Rudolf Kohlrausch had used c for a different constant that was later shown to equal √ 2 times the speed of light in vacuum. . Historically, the symbol V was used as an alternative symbol ...

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