Do you know that?/You know what? Do you know that?/You know what? The intensity of the light source will also affect our emotional response, so we should pay attention to the color temperature of the lamps when matching the lights. Let me introduce the most common color temperature of incandescent lamps. Let's study together.

What is the color temperature of incandescent lamp?

Color temperature is a representation of the color of light source. When the color of the light emitted by a light source is the same as that of a black body at a certain temperature, the temperature of this black body is called the color temperature of the light source, which is expressed by an absolute temperature scale and the unit is K (Kelvin).

People use the absolute temperature of the complete radiator equal to or close to the color temperature of the light source to describe the color table of the light source (the color seen by the human eye when directly observing the light source), which is also called the color temperature of the light source. Color temperature is expressed as absolute temperature k, and different color temperatures will make people have different emotional reactions. We usually divide the color temperature of light sources into three categories:

1. warm color light: the color temperature of warm color light is about 2800-3300K K, which is similar to incandescent lamp and contains more red components, giving people a warm, healthy and comfortable feeling. Suitable for families, houses, dormitories, hospitals, hotels and other places.

Or where the temperature is relatively low. 2. Warm white light: also called intermediate color, its color temperature is around 4000K K, and the warm white light with soft light makes people feel happy, comfortable and quiet. Suitable for shops, hospitals, offices, restaurants, restaurants, waiting rooms and other places.

3. Cold light: also known as daylight color, its color temperature is about 5500 K-6500 K, and the light source is close to natural light, which makes people concentrate. Suitable for offices, conference rooms, classrooms, studios, design rooms, library reading rooms, exhibition windows and other places.

Misunderstanding of color temperature of incandescent lamp

1. "The higher the temperature, the higher the color temperature"?

The calorific value of 1 and 15W household lighting incandescent bulbs is obviously lower than that of 60W household lighting incandescent bulbs. Is the color temperature of 60W incandescent bulbs higher than 15W?

2. Now everyone in the family knows that a frosted cover on the incandescent bulb can make the light emitted by the incandescent bulb inside look whiter outside the lampshade, close to the light emitted by the fluorescent tube.

3. I take home lighting as an example, because there may be fewer professional auto and motorcycle people than those who have seen incandescent bulbs. In fact, halogen bulbs are an important part of automobile bulbs. Halogen bulbs have different wattages. However, because automobile bulbs need to be more resistant to high temperature and impact, different glass shells (such as timely glass), different filaments (household tungsten wires) and different "filling gases" are used (all household bulbs above100W are filled with a certain proportion of nitrogen).

However, the same feature of halogen bulbs is that they emit light based on filaments. So its luminous principle is essentially the same as that of household incandescent bulbs! Not "higher temperature" or "higher color temperature" at all. Second, the description of color temperature range:

Many friends' descriptions of color temperature are confusing, but fortunately, not many people delve into this knowledge, so all kinds of descriptions are contradictory, shocking and ridiculous.

Matters needing attention in home lighting selection

The overall light source is too bright. In order to show luxury, many people will use a lot of bright lamps when decorating, such as crystal lamps, spotlights and downlights. Others installed a whole circle of spotlights on the ceiling of the living room. This kind of lighting is unscientific, which not only wastes resources, but also causes great damage to the eyeball and easily causes emotional irritability.

There is no difference in brightness. The function of each space in the home is different, and the requirements for light intensity are also different. Generally speaking, the brightness of living room, study room, dining room and other spaces is stronger than that of bedroom and kitchen, which is more in line with the law of human work and rest. It is best to install at least three different types of lamps in the bedroom. One is a headlight with too high wattage.

So as not to be too dazzling when turning on the light at night; One is a desk lamp. Many people like reading books and newspapers in bed. It is best to adjust the brightness of the desk lamp, brighten it when reading and dim it when watching TV. You can also design a nightlight with soft light at a distance of 30 cm from the ground, which is open at night to facilitate getting up at night. The contrast between light and shade is too strong. Indoor light should be kept as soft and uniform as possible, without glare and shadow. Some people artificially create special effects in some spaces, and use lamps with opaque lampshades indoors, which leads to clear indoor light and shade. When people's eyes turn from bright areas to dark areas, it takes some time to get used to seeing objects clearly, which is easy to cause visual fatigue repeatedly.

The lights are colorful. When some families choose lamps and lanterns, in order to pursue luxury, they often ignore the reasonable lighting demand and design lamps and lanterns into colorful ones. The color of light is messy, which not only damages vision, but also interferes with the central nervous system function of the brain.

Regardless of the color temperature. Most people only consider illumination when buying light sources, and seldom consider color temperature. For general indoor lighting, the main light source should be cold and the auxiliary light source should be warm. In addition, from the point of view of room use, study, living room, kitchen and so on. Cold light sources should be used, while warm light sources should be used in bedrooms, bathrooms and balconies.

There is a fluorescent desk lamp beside the bed. People always like to put a fluorescent lamp on the bedside table, which looks warm, but has the disadvantage of stroboscopic, and it will make a "buzzing" sound after long use. Reading books and playing computer in this environment will do harm to human body, such as decreased vision, dizziness, insomnia and so on.

Always maximize the brightness level of the adjustable light source. The adjustable light source is favored by many people because it can be dimmed as needed. Many families are used to adjusting the brightness to the maximum, which not only greatly shortens the service life of the light source, but also is harmful to human health. The brightness of the adjustable light source should be controlled at 60%-80%, and the maximum brightness should not exceed 90%.

Turn on the light on the side of the TV wall. Some families will install spotlights on one side of the TV wall, and only turn on the lights on one side of the TV wall when watching TV, which affects the audio-visual experience and is not conducive to eye health. Wall lamps, desk lamps or floor lamps should be designed on both sides of the seat, and the brightness should be adjusted to 50% when watching TV.

Regardless of color temperature. Most people only consider illumination when buying light sources, and seldom consider color temperature. For general indoor lighting, the main light source should be cold and the auxiliary light source should be warm. In addition, from the point of view of room use, study, living room, kitchen and so on. Cold light sources should be used, while warm light sources should be used in bedrooms, bathrooms and balconies.

There is a fluorescent desk lamp beside the bed. People always like to put a fluorescent lamp on the bedside table, which looks warm, but has the disadvantage of stroboscopic, and it will make a "buzzing" sound after long use. Reading books and playing computer in this environment will do harm to human body, such as decreased vision, dizziness, insomnia and so on.

Always maximize the brightness level of the adjustable light source. The adjustable light source is favored by many people because it can be dimmed as needed. Many families are used to adjusting the brightness to the maximum, which not only greatly shortens the service life of the light source, but also is harmful to human health. The brightness of the adjustable light source should be controlled at 60%-80%, and the maximum brightness should not exceed 90%.

Turn on the light on the side of the TV wall. Some families will install spotlights on one side of the TV wall, and only turn on the lights on one side of the TV wall when watching TV, which affects the audio-visual experience and is not conducive to eye health. Wall lamps, desk lamps or floor lamps should be designed on both sides of the seat, and the brightness should be adjusted to 50% when watching TV.