Color temperature and penetration of light
Color headlights’ visible light generally refers to the radiation of 0.38~0.76 micron in the solar radiation spectrum. It is composed of 7 colors such as red, orange, yellow, green, cyan, blue and purple.
Light Wavelength
Different colors of light have different wavelengths, different wavelengths of light, the degree of scattering is not the same.
- The longer the wavelength, the less likely it is to be scattered, and the stronger its penetrating power, such as red, orange, yellow.
- Conversely, the longer the waveband, the easier it is to be scattered, and the weaker its penetrating power,such as blue and purple.
- Different wavelengths of light correspond to different color temperatures(as follows).
- It can be seen that color temperature is a decisive factor in determining the strength of light penetration.
| 7 Kinds of Visible light | |||
| Light Colors | Wavelength (nm) | Frequency (Hz) | Center wavelength (nm) |
| Red | 780-622 | 3.8 x 1014 – 4.8 x 1014 | 660 |
| Orange | 622-597 | 4.8 x 1014 – 5.0 x 1014 | 610 |
| Yellow | 597-577 | 5.0 x 1014 – 5.4 x 1014 | 580 |
| Green | 577-492 | 5.4 x 1014 – 6.1 x 1014 | 540 |
| Cyan | 492-470 | 6.1 x 1014 – 6.4 x 1014 | 480 |
| Blue | 470-455 | 6.4 x 1014 – 6.6 x 1014 | 460 |
| Purple | 455-380 | 6.6 x 1014 – 7.9 x 1014 | 430 |
Color headlights and Visibility
Light penetration determines visibility in bad weather, such as snowy day, foggy day and so on. It is very important for car headlight and fog light. Before this, Some user of LED headlight respond that their light penetration is insufficient. They think the visibility of the LED light is wrose than halogen bulbs. Based on the above industry knowledge, it is not the type of lamp that determines the penetrability of a light, it’s the color temperature of the light emitted by the lamp.
Choose the right color temperature for your safe driving escort.
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