Lux Converter
Convert Lux to Lumen Square Centimeter and more • 37 conversions
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Unit Explanations
Luxlx
Source UnitThe lux (symbol: lx) is the SI unit of illuminance and luminous emittance, defined as one lumen per square meter. This unit quantifies the amount of visible light that illuminates a surface area, providing an essential measure for lighting design and assessment. The lux is integral to various fields, including photography, cinematography, and interior design, as it helps determine the adequacy of lighting in spaces. A well-lit environment typically requires illuminance levels ranging from 100 to 1000 lux, depending on the activity being performed. Thus, the lux not only conveys the intensity of light but also directly correlates with human visual comfort and productivity.
Current Use
The lux is widely used in various industries to ensure that lighting conditions meet specific standards for safety, comfort, and productivity. In architectural lighting design, lux levels are meticulously calculated to optimize illumination in spaces such as offices, schools, and hospitals. The film and photography industries rely on lux measurements to ensure proper lighting conditions for shoots, while horticulture utilizes lux for assessing light requirements for plant growth. In the automotive industry, lux is crucial for assessing headlight brightness and visibility. Countries around the world, including the United States, Germany, and Japan, apply lux standards in building codes and regulations to ensure adequate lighting in public and private spaces. Regulatory bodies often specify minimum lux levels for various environments, ensuring compliance with safety and quality standards.
Fun Fact
The human eye can perceive light levels ranging from about 0.1 lux (moonlight) to over 100,000 lux (bright sunlight).
Lumen Square Centimeterlm/cm²
Target UnitThe lumen square centimeter (lm/cm²) is a derived unit of measurement that quantifies luminous flux per unit area, specifically in square centimeters. It represents the amount of light emitted in a particular direction by a light source, normalized over a defined area. The lumen itself is defined as the amount of light emitted through a solid angle of one steradian by a point source that has a uniform intensity of one candela. This unit is particularly useful in contexts where illumination levels need to be assessed over small surface areas, such as in the evaluation of lighting conditions for displays, artwork, or other focused applications. The relationship with the SI unit of luminous flux, the lumen, allows for convenient conversions and applications in both scientific and practical scenarios.
Current Use
The lumen square centimeter is widely used in various industries to measure illumination levels across small surface areas. In the field of horticulture, it helps determine the optimal lighting for plant growth, ensuring that they receive sufficient light intensity for photosynthesis. In photography, it can be used to assess the brightness of lighting setups, allowing photographers to adjust their equipment for ideal exposure. Other applications include theatrical lighting design, where precise measurements influence the visual impact of productions, and in the automotive sector for evaluating the brightness of vehicle headlights. Countries such as the United States, Germany, and Japan utilize this unit in both commercial and scientific contexts, reflecting its global relevance. The adoption of LED technology has further increased the focus on illumination metrics, making the lumen square centimeter crucial for energy-efficient lighting solutions.
Fun Fact
The lumen square centimeter is particularly vital in the design of smart lighting systems that adapt based on usage.
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📐Conversion Formula
= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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Lux
illumination • SI Unit
Definition
The lux (symbol: lx) is the SI unit of illuminance and luminous emittance, defined as one lumen per square meter. This unit quantifies the amount of visible light that illuminates a surface area, providing an essential measure for lighting design and assessment. The lux is integral to various fields, including photography, cinematography, and interior design, as it helps determine the adequacy of lighting in spaces. A well-lit environment typically requires illuminance levels ranging from 100 to 1000 lux, depending on the activity being performed. Thus, the lux not only conveys the intensity of light but also directly correlates with human visual comfort and productivity.
History & Origin
The concept of measuring light dates back to ancient civilizations, but the formal introduction of the lux occurred in the 20th century. The unit was officially defined in 1948 during the International Conference on Weights and Measures in Paris, where it was adopted as part of the International System of Units (SI). Before the lux, illuminance was often measured using different units like foot-candles, which were less standardized. The establishment of the lux aimed to create a uniform measurement standard for scientific and practical applications in lighting.
Etymology: The term 'lux' comes from the Latin word for 'light'.
Current Use
The lux is widely used in various industries to ensure that lighting conditions meet specific standards for safety, comfort, and productivity. In architectural lighting design, lux levels are meticulously calculated to optimize illumination in spaces such as offices, schools, and hospitals. The film and photography industries rely on lux measurements to ensure proper lighting conditions for shoots, while horticulture utilizes lux for assessing light requirements for plant growth. In the automotive industry, lux is crucial for assessing headlight brightness and visibility. Countries around the world, including the United States, Germany, and Japan, apply lux standards in building codes and regulations to ensure adequate lighting in public and private spaces. Regulatory bodies often specify minimum lux levels for various environments, ensuring compliance with safety and quality standards.
💡 Fun Facts
- •The human eye can perceive light levels ranging from about 0.1 lux (moonlight) to over 100,000 lux (bright sunlight).
- •The term 'foot-candle', an older unit of illuminance, is equivalent to approximately 10.764 lux.
- •In photography, achieving the right lux levels can significantly impact the quality of images captured.
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Lumen Square Centimeter
illumination • Non-SI
Definition
The lumen square centimeter (lm/cm²) is a derived unit of measurement that quantifies luminous flux per unit area, specifically in square centimeters. It represents the amount of light emitted in a particular direction by a light source, normalized over a defined area. The lumen itself is defined as the amount of light emitted through a solid angle of one steradian by a point source that has a uniform intensity of one candela. This unit is particularly useful in contexts where illumination levels need to be assessed over small surface areas, such as in the evaluation of lighting conditions for displays, artwork, or other focused applications. The relationship with the SI unit of luminous flux, the lumen, allows for convenient conversions and applications in both scientific and practical scenarios.
History & Origin
The concept of luminous flux was established in the early 20th century as the understanding of light and its measurement evolved. The lumen was first defined in the 1948 edition of the International System of Units (SI) based on the work of scientists who sought to quantify human perception of light. The square centimeter, a metric unit for area, was established earlier as part of the metric system developed in France during the late 18th century. The combination of these two units into lumen square centimeters emerged as a practical application in fields such as photography and theatrical lighting, where precise measurements of light over small areas became increasingly important.
Etymology: The term 'lumen' is derived from the Latin word for 'light,' while 'centimeter' comes from the French 'centimètre,' which itself is a combination of 'centi-' (meaning one-hundredth) and 'meter,' the base unit of length in the metric system.
Current Use
The lumen square centimeter is widely used in various industries to measure illumination levels across small surface areas. In the field of horticulture, it helps determine the optimal lighting for plant growth, ensuring that they receive sufficient light intensity for photosynthesis. In photography, it can be used to assess the brightness of lighting setups, allowing photographers to adjust their equipment for ideal exposure. Other applications include theatrical lighting design, where precise measurements influence the visual impact of productions, and in the automotive sector for evaluating the brightness of vehicle headlights. Countries such as the United States, Germany, and Japan utilize this unit in both commercial and scientific contexts, reflecting its global relevance. The adoption of LED technology has further increased the focus on illumination metrics, making the lumen square centimeter crucial for energy-efficient lighting solutions.
💡 Fun Facts
- •The lumen square centimeter is particularly vital in the design of smart lighting systems that adapt based on usage.
- •The human eye is most sensitive to light at around 555 nanometers, which corresponds closely to the luminous efficacy of the lumen.
- •In ancient times, the measurement of light was often qualitative, with no standardized units.
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Frequently Asked Questions
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