Color temperature encyclopedia
The color temperature was a unit of measurement that indicated the color composition of light. In theory, the blackbody temperature referred to the color of an absolute blackbody after it was heated from absolute zero (-273 ° C). After the black body was heated, its color gradually turned from black to red, yellow, white, and finally emitted blue light. When a blackbody was heated to a certain temperature, the spectral composition of the light it emitted was called the color temperature at that temperature. The unit of measurement was "K"(Kelvin). If the light emitted by a light source has the same spectral composition as the light emitted by a black body at a certain temperature, the light source is called a certain K color temperature. For example, the color of the light emitted by a 100W light bulb was the same as the color of an absolute black body at 2527 ° C, so the color temperature of the light emitted by this light bulb was (2527 + 273) K = 2800K. The light with a low color temperature is yellowish, such as incandescent lamps, about 2800K; the light with a high color temperature is blue, such as purple lamps, more than 9000K; the standard white light has a color temperature of 6500K, and the white light emitted by the LCD is about 5500K. The process of using the principle of color temperature to change photography, video, display, and other equipment is called the color temperature effect. By slightly changing the mixing ratio of the three primary colors, the effect of increasing or decreasing the color temperature can be simulated. Read more exciting novels for free
Color temperature chart
The "color temperature graph" could be a "color-temperature graph" or a "color-temperature diagram". <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The color temperature of spring
There was no specific value for the color temperature in spring. It was only known that spring used a kind of contrast color temperature, and spring liked green lighting. When shooting in spring, the white balance/color temperature could be adjusted to shoot warm colors. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Color temperature for design
In lighting design, the choice of color temperature depends on the specific needs of the place. The following are the color temperature design suggestions for different locations: - ** Home environment **: - The overall color temperature of the home decoration was recommended to be 3500K-4000K. Among them, the 3500K color temperature was warm, giving people a warm, lazy, and relaxed feeling, while the warm white light around 4000K made people happy and comfortable. However, when the use of different spaces in the home is changeable, such as the living room and bedroom, it is best to choose an LED lamp with a color temperature that can be adjusted. For example, the bedroom is suitable for 3000 - 3500K color temperature lighting before going to bed, which is good for sleep, and high color temperature lighting is good for thinking things; if the bedroom uses a color temperature lamp above 5000K, excessive blue light will suppress the brain's meltdown release, affecting sleep and sleep quality. According to the National Building Lighting Design Standard, the color temperature of guest rooms and bedrooms should be less than 3300K; the kitchen is not recommended to use warm light. A color temperature of 3500 - 4000K with a color rendering index of more than 90 is better, which can make the taste sensitive and the space clean and tidy. Two color temperatures can be prepared for the bathroom, and the comfortable color temperature should be selected according to the season. - ** Office **: Generally choose 4000 - 5000K, close to natural light, making people feel bright and focused, so that they can quickly enter the working state to improve efficiency. - ** Shops, hospitals and other places **: suitable for cold light (above 5000K), can enhance the brightness of the space. - ** Lobby, restaurant, bathroom, etc. ** Neutral light (3300K-5000K) can create a natural feeling in the space. - ** Living room, bedroom, exhibition area, etc. **: Warm light (below 3300K) can be used to decorate the atmosphere. At the same time, when choosing the color temperature, psychological and aesthetic issues should also be considered. It depends more on factors such as illumination, the color of the interior surfaces and furniture, the climate environment, and the application site conditions. Usually, warm color temperature should be used in low-illumination places, intermediate color temperature should be used in medium-illumination places, and cold color temperature should be used in high-illumination places. In warm climate conditions, cold color temperature may be more inclined, and in cold conditions, warm color temperature may be more inclined. Under normal circumstances, intermediate color temperature should be used. It was also best to use lamps of the same brand and batch in the same space to reduce the influence of color temperature difference and color tolerance. If there was no brilliant design technique, try not to use two color temperatures in the same space. If used, the difference should not exceed 500K. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
ambient color temperature
The color temperature was a unit of measurement that represented the color composition of light. The unit was "K"(Kelvin). It was a physical quantity used to define the color of a light source in illumination. In theory, the blackbody temperature referred to the color of an absolute blackbody after it was heated from absolute zero (-273 ° C). After the blackbody was heated, the color gradually changed from black to red, yellow, white, and finally blue light. When heated to a certain temperature, the spectral composition of the light emitted by the blackbody was called the color temperature at this temperature. If the light emitted by a light source has the same spectral composition as the light emitted by a black body at a certain temperature, it is called a certain K color temperature. However, it was difficult to determine the specific value without more background information because different environments had different color temperatures. For example, the color temperature of indoor lighting may be between 2700 - 4000K (warm light to neutral light range), and different lamps, natural light sources (such as sunny and cloudy), etc. will affect the color temperature of the environment. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The color temperature of the makeup lamp
The color temperature of the makeup lamp was generally 5000K-6500K. This color temperature range could provide sufficient brightness and accurate color reproduction, which would help make makeup more precise and accurate. At the same time, the light under this color temperature would not be too dazzling or dim, which could protect the eyes and provide a better observation effect. If you want a more professional makeup effect, you can add a soft light source around the mirror, such as LED light strips or soft light boards, to make the lighting more uniform and soft. You can also adjust the brightness and angle of the light to suit different scenes and makeup needs. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Color temperature preference in America and Europe
European people's eyes were blue and more sensitive to light. They preferred low color temperature screens. For example, in terms of lighting, European light culture preferred low color temperature and high display. Low color temperature light made white skin not pale, and warm colors could create different ambiances and control the saturation of the picture. In North America and Europe, blue represented trust, security, and authority. It was considered a color that comforted and calmed people. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
adjust the camera's color temperature
You can choose different color temperature settings for different shooting scenes. If you want to create a cool atmosphere, you can set the color temperature to> 5000K (the color is slightly blue); if you want to achieve a refreshing and bright atmosphere, you can set the color temperature to 3300 - 5000K (the middle tone, white); if you want a warm and stable atmosphere, you can set the color temperature to <3300K (the color is slightly red). For example, when using cameras such as the Alexa Mini LV, Canon C500mkII, SonyVenice, and SonyFX9, you can set the camera's color temperature to 4300K in order to pay attention to the parameters and functions first. In addition, different lighting environments also have corresponding color temperature references. Red and yellow lighting environments can be set to 3200K; normal sunlight or indoor fluorescent lighting environments (compared to 3200K, this light is bluer) can be set to 5600K; when the sunlight is strong on sunny days, 5600K + gray film can be used. White balance technology can be used to adjust the color temperature of indoor and outdoor environments. It allows the camera to restore white objects to ensure that white objects are still white in different lighting environments. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
A suitable color temperature for reading and work
For reading and working scenes, neutral light with a color temperature of about 4000K was more suitable. The National Requirements for Reading and Writing Table Lamps stated that a color temperature of 3300K to 5300K was suitable for reading. Research had also shown that a table lamp with a color temperature of 4000K could significantly reduce eye dryness and visual fatigue when the user was reading. In addition, the study room (a typical workplace) had a suitable color temperature between 4000 - 5000K. This kind of color temperature light source could provide sufficient but not dazzling illumination, and it could minimize the potential harm of blue light to the eyes. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Dual color temperature power supply
The dual color temperature power supply was a power supply that could achieve two color temperature adjustments. For example, Zhejiang Arc Light Intelligent obtained the patent for the multi-color temperature controllable LED driver. Its light source module includes a cool light emitting unit and a warm light emitting unit. The color temperature can be adjusted through the color temperature control module. There were also a variety of dual-color temperature power-related products on the market, such as the Aqara dual-color temperature driver T1 Pro, which could be used as the power supply and driver of the spotlight, and the Lanchey dual-color temperature smart light strip with a power supply of 300W. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The importance of color temperature in film and television
Color temperature was important in many aspects in film and television. First of all, from the perspective of shooting, the photographer would choose different color temperatures based on the scene and the desired effect. Under natural light conditions, the color temperature would affect the color of the light and the cold and warm atmosphere of the scene. For example, the higher the color temperature, the bluer the light, and the colder the scene; the lower the color temperature, the yellowish the light, and the warmer the scene. Secondly, in the post-production editing process, the adjustment of the color temperature was of great significance. It could make the colors of the film more vibrant and vivid, and make the style of the film more distinct. The adjustment of the color temperature could also affect the audience's mood. The appropriate adjustment could help highlight the theme of the film and allow the audience to better immerse themselves in the atmosphere of the film, which would directly affect the quality and effect of the film. In addition, in the color matching process, by changing the color temperature, the colors could be unified, which could better match the content of the film and meet the needs of the later stage in different scenes and environments. In addition, during the production of the promotional video, different color temperatures had a significant impact on the color tone of the screen. Under the illumination of light sources with different color temperatures, it was necessary to adjust the white balance of the camera to restore the true light effect of the scene. Also, the photographer was familiar with the color temperature of the commonly used light source to help improve work efficiency and accuracy. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>