Valonkeräys
Valonkeräys, also known as photometry, is the science of measuring light, along with its spectral composition and photometric properties. It is a branch of optics that deals with the measurement of light intensity, color, and other properties. Photometry is used in various fields, including astronomy, photography, and lighting design.
The basic unit of measurement in photometry is the lumen, which is a measure of the total
Photometric measurements can be made using various instruments, such as photometers, spectrophotometers, and colorimeters. These instruments
Photometry is important in many applications, such as in the design of lighting systems, where it is
In summary, photometry is a crucial field of study that deals with the measurement of light and