Lux (symbol: lx) is the SI unit of illuminance, measuring the total luminous flux incident on a surface per unit area. It quantifies how much light illuminates a given surface, considering the human eye's sensitivity to different wavelengths of light. One Lux is defined as one lumen per square meter. It's crucial in various fields, including photography, architecture, and lighting design, to ensure adequate visibility and achieve desired visual effects. Lux values vary significantly based on the light source's intensity and the distance from it. It's a measure of light as it appears to the human eye and not just the amount of energy in the light.
Lux meaning with examples
- The photographer measured the scene's illuminance, determining a Lux value of 500 lx to set the camera's aperture and shutter speed correctly. Insufficient lighting would lead to underexposed photos. The Lux meter allowed for fine-tuning the brightness of the image, vital for the desired aesthetic appeal and accurate color representation.
- The architect specified a minimum of 300 lx of artificial light in the office spaces to ensure worker comfort and productivity. This controlled amount of brightness promotes workplace efficiency. The lighting design prioritized energy-efficient LED fixtures that met the Lux requirements while minimizing energy consumption.
- In the plant growth experiment, the researchers carefully controlled the Lux level provided to the plants, ranging from 1,000 to 5,000 lx, optimizing the amount of growth in each pot. They measured the surface exposure to light and provided the most beneficial spectrum.
- The smart home system automatically adjusted the ambient lighting, maintaining a comfortable 150 lx in the living room for evening relaxation. This adjustment was based on input from an ambient light sensor and programmed user preferences.
- The lighting engineer used a Lux meter to measure the light levels on the shop floor, adjusting the positions of the overhead fixtures to achieve a uniform illuminance of 800 lx across the workspace to prevent dark patches. This measurement helped create the most functional workspace.
Lux Synonyms
brightness illuminance intensityLux Antonyms
darkness obscurity shadowLux Crossword Answers
2 Letters
LX