The Meaning of Colors in AOZOOM Light Pattern Images
Light plays a crucial role in ensuring traffic safety, especially when driving at night. AOZOOM Light Pattern images, simulated or modeled, are widely used to test and illustrate the intensity and range of car headlights. Let's explore the meaning of colors in AOZOOM light pattern images!
1. What is an AOZOOM Light Pattern Image?
A light pattern image (or light modeling image) is a method of visualizing the light intensity of a lamp by using colors to represent different levels of brightness. In the field of automotive lighting, light pattern images provide a way to assess the lighting capability of lamps through the analysis of light distribution. By observing the different colors in the image, engineers and users can easily determine the strong light areas, long-range illumination, and peripheral areas.
AOZOOM light pattern applied to BiLED EMBER
View more details: BI-LED EMBER PROJECTOR HEADLIGHTS
2. Color Standards in Light Pattern Images by Country
Automotive lighting color and intensity regulations vary across regions, such as Europe, the US, and Canada. Each region has specific standards for color temperature (Kelvin) and brightness to ensure traffic safety. For example:
Europe: Front car lights commonly use white or warm yellow light to reduce glare. UNECE regulations mandate that light ensures clear visibility but isn't overly bright to avoid dazzling oncoming vehicles.
North America and Canada: Society of Automotive Engineers (SAE) regulations allow for white light with a higher Kelvin spectrum, permitting a slightly blueish light in HID or LED lamps.
Light testing simulation according to European ECE light inspection standards
Light testing simulation is conducted based on pre-defined points (according to the light inspection standards of each country). Two common types of light pattern images that AOZOOM provides to consumers are:
Light intensity simulation on a plane: Shows light intensity in different areas on a flat surface according to lighting system standards.
AOZOOM LEO New Arrival light pattern on a plane
Illumination area simulation from a horizontal plane: Helps examine the spread of light horizontally from a top-down perspective.
AOZOOM Wolf New Arrival light pattern from a horizontal view
3. Meaning of Each Color in AOZOOM Light Pattern Images
In both types of AOZOOM light pattern images, common colors include deep red, orange, yellow, green, blue, and purple.
Below is the meaning of each color and its role in representing light intensity and range.
Color in Light Pattern | Deep Red | Orange and Yellow | Green | Blue and Purple |
Light Area | Center Area | Transition Area | Long-range Illumination Area | Edge Area |
Meaning Represented | Maximum light intensity (Area where light concentrates most) | Transition from high to lower light intensity | The long-range capability of the lamp | Lowest light intensity |
Role of Light Areas | The wider the light area, the better the driver's visibility at close range, highlighting obstacles and road signs. This is very useful when driving in poor weather conditions or dimly lit areas. | The wider the light area, the better visibility to the sides, helping to detect potential hazards from afar, especially useful when driving on narrow or unlit roads. | The wider the light area, the greater the illumination range, allowing for timely reactions to unexpected situations like sudden stops or objects on the road, improving safety at high speeds. | The wider the light area, the wider the driver's peripheral vision, helping to detect objects on the roadside and perceive the surroundings comprehensively. |
AOZOOM Light Pattern Color Analysis Table
4. Additional Information About AOZOOM Light Pattern Images
In addition to using colors to represent light intensity or spread, some countries also use elements such as Light Intensity Scales (placed to the right of the image), Cut-off lines, and numerical symbols for detailed annotation of light parameters for consumers.
a. Light Intensity Scales
The unit is candela (cd), representing light intensity with values from low (5 cd) to high (18,350 cd). Colors from blue (low intensity) to yellow, orange, and red (high intensity) indicate the light distribution of the lamp. Specifically:
Dark blue: Very low intensity, almost no illumination.
Yellow, orange, red: Light intensity gradually increases, representing areas of strong light (colors vary according to national or regional standards).
Light pattern on a plane with a light intensity scale
In horizontal light pattern images, the color scale on the right ranges from 0.1 lux (dark blue) to 110.3 lux (yellow), showing light levels in different areas.
Red and yellow areas: High illumination intensity, concentrated in the central area and extending far forward, representing the strongest and farthest light range.
Green and blue areas: Light intensity gradually decreases, showing light spread out around but not strong or far.
This graph provides information about the lamp's long-range and focused illumination capabilities, crucial for ensuring good visibility for the driver at long distances.
Light pattern on a horizontal plane with a light intensity scale
Additionally, there are scales that quantify the light intensity in each area of the vehicle taillight's luminous flux pattern. For example, the yellow area has a light intensity of about 180 cd, while the green area ranges from 60 to 120 cd. This scale helps assess the light level of the lamp according to safety standards, ensuring the taillights are bright enough for other vehicles to notice but not too dazzling.
Vehicle taillight's luminous flux pattern
In general, both these charts help assess the illuminance of the lamp in different directions. The bright central area ensures enough light for frontal vision, while the light gradually weakens towards the surrounding areas to avoid glare and ensure safety for oncoming vehicles.
b. Cut-Off Line
This is the line separating the illuminated area from the dark area to prevent glare to oncoming vehicles. In the image, the Cut-Off area is precisely set to ensure light focuses on the area below and limits illumination above.
Cut-Off Line simulation
c. Symbols B50L, 50L, 50V, 50R, 25L, 25R
These symbols are commonly used to check light intensity points according to international standards. They correspond to specific measurement points to assess whether the headlight meets the illumination requirements.
B50L: Intensity measurement point on the left side, often used to ensure the light is not too glaring.
50L, 50R: Intensity check on the left and right sides to ensure even light distribution.
25L, 25R: Checking a wider area, helping to ensure uniform light distribution.
d. Zone III a
This zone shows the illuminated area above the Cut-Off, usually where the light must be strictly controlled to prevent glare.
Overall, this image helps check whether the headlight meets the requirements for light intensity distribution and properly controls the light. It also shows that the strongest light concentrates in the central area below the Cut-Off, ensuring clear visibility for the driver without causing glare.
5. Conclusion
Understanding the meaning of colors in AOZOOM Light Pattern images is an important part of assessing the performance of car headlights. From deep red at the center to blue at the edge, each color plays a special role in optimizing the driving experience while ensuring safety for the driver and other road users.
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