The wavelength and spectral distribution of light
Light is an electromagnetic wave, its propagation speed is the speed of light, about 300,000 kilometers per second, in air and vacuum, the speed of light is constant, about 300,000 kilometers per second, the wavelength of light refers to the distance required for the light wave to propagate a cycle, it is a basic characteristic of light, and the frequency of light refers to the number of periods of light wave propagation in a unit of time, the unit is hertz (Hz), that is, the number of cycles per second, there is a simple relationship between the wavelength and frequency of light: the wavelength multiplied by the frequency is equal to the speed of light.
Visible light refers to a part of the electromagnetic waves that the human eye can perceive, and its wavelength range is about 380 nm to 780 nm, in which, the light with a shorter wavelength is shown as purple, while the light with a longer wavelength is shown as red, and the different wavelengths of light in the visible spectrum produce a variety of colors that we can see, in addition to purple and red, the visible spectrum also includes blue, green, yellow, etc.
Characteristics of neutral light
Neutral light is a kind of light without any color, it can also be called white light, it is not biased towards any specific wavelength, but contains a variety of wavelength components of the entire visible spectrum, in other words, neutral light is presented as a uniform distribution of brightness in the spectrum, there is no obvious hue, this light is usually emitted by natural light sources such as the sun, or artificial light sources such as incandescent lamps, etc., the characteristics of neutral light make it an ideal light source in many cases, because it does not cause color distortion, At the same time, it can also provide adequate lighting.
Characteristics of white light
White light is also a type of light that does not have a distinct color, but unlike neutral light, white light appears as a more uniform and bright peak in the spectrum, usually concentrated in the center of the visible spectrum, that is, between blue and red, which means that white light will be brighter and clearer visually, giving a more intense sense of light, and this property of white light makes it an ideal lighting choice in many occasions, such as homes, offices and stores where visual comfort and brightness are required.
Differences in visual perception
The different characteristics of neutral light and white light lead to differences in people's visual perception, when we see neutral light, what we feel is a uniform and peaceful brightness, without obvious color, which makes neutral light widely used in some occasions that require uniform brightness but do not need color interference, such as operating rooms or laboratories in medical environments, and when we see white light, we will feel a stronger sense of brightness, because white light produces obvious peaks in the central region of the spectrum, This makes white light more commonly used in general lighting because it provides better visuals and makes people feel clearer and more active.
The brightness of white light
Compared to neutral light, the crest of white light in the central region of the spectrum allows us to perceive more intense light, which makes white light brighter and clearer visually, therefore, white light is more commonly used in general lighting, such as homes, offices, stores, etc., where people usually want a bright, clear, and comfortable environment, and white light can meet this demand.
Differences in the field of application
There are also differences between neutral light and white light in the field of application, neutral light is mainly used in occasions that require uniform brightness but does not need color interference, such as operating rooms or laboratories in medical environments, the uniformity and stability of neutral light make it widely used in these occasions, while white light is more commonly used in general lighting, because it is brighter and can provide better visual effects, therefore, when choosing a light source, it is necessary to choose according to the specific application needs to obtain the best lighting effect.
Summary
There are obvious differences between neutral light and white light in spectral distribution, visual perception and application fields, neutral light is presented as uniform brightness, without obvious color, suitable for occasions that require uniform brightness but do not need color interference, while white light produces obvious peaks in the central area of the spectrum, giving people a brighter and clearer feeling, suitable for general lighting and other occasions, in practical applications, it is necessary to choose the appropriate light source according to specific needs to obtain the best lighting effect.
Sochuang Premium Plan