使用白点调整和颜色测量的汽车行业的研发

Critical design factors in the automotive industry include the quality of lighting and displays. Measuring the colors emitted from the lights and displays accurately allows high-quality, precise results. The key solutions for accurate color measurement in vehicle design and manufacturing are outlined in this article.

The automotive market is becoming more competitive. Safer, better, more reliable vehicles that provide a more enjoyable driving experience are being demanded by consumers. In recent decades this has resulted in a flurry of technological advances in the automotive industry. Automotive lighting and design are no exception to this trend, with a number of significant innovations.

Figure 1.照明和显示是车辆设计的重要方面。图片来源：pixabay.com/xusenru。

汽车Lighting Research Enhances Efficiency and Design

从1970年代引入的卤素灯到1990年代引入的氙气灯，再到2006年引入的全LED大灯，外部车辆灯已经迅速发展。与他们的前任LED大灯相比，可以提高效率，更长的寿命和减少的能耗。

Additionally, adaptive driving beam technologies which were introduced in 2014 now enable headlights to automatically adapt to every driving situation. Laser lights are the latest trend in headlights, offering diodes that are a fraction of the size of LEDs while providing superior quality, efficiency, and performance.^1-4

Interior lighting研究也成为车辆设计的更为关键部分，研究表明，环境内部照明可以增强车辆的吸引力，空间感知和感知的安全性。LED是目前在室内照明中使用的主要照明源，但是对OLED的研究正在进行，可提供更多的设计灵活性和光纤，可提供紧凑性。

Whilst interior lighting is currently focused on enabling a superior driver experience, the introduction of autonomous vehicles could wholly alter how we interact with our vehicles.^6,7

Color Quality of Vehicle Lighting and Displays is an Essential Design Consideration

为了确保客户满意度提高和高质量产品，在研发过程中测量和调整车辆组件的光学性能至关重要。车辆制造商和汽车OEM旨在计划其设计和照明方案，以便满足监管和消费者的需求。

可悲的是，质量生产过程可能导致组成，材料结构和厚度的差异很小，从而导致汽车显示器和灯光的颜色差异和光谱变化。^8-10

Color reproduction and white point adjustment are a key process of quality control in automotive research and development. Color measurement can be carried out using a spectroradiometer or colorimeter.^11-13

Measuring Color – Colorimeter or Spectroradiometer?

尽管两种设备都提供了“正确”的颜色测量，但它们以非常不同的方式进行。测量的上下文通常决定了设备的最佳选择。^11-13

根据一组坐标（XYZ或红色，绿色，蓝色），比色器以与人眼类似的方式测量颜色。当用比色表测量颜色时，您将获得三个值，可以将其转换为颜色点，例如CIE 1931图。

使用色彩表来测量颜色的弊端之一是，很多时候可以使用不同的光频谱获得相同的颜色。因此，比色器无法分辨出许多白光品种之间的差异，但这并不意味着灯光在频谱上相同。^11,12

Figure 2.CIE 1931 diagram, with the white point marked.

Spectroradiometersprovide a spectrum with a ‘truer’ reflection of the color, by dispersing and measuring the intensity of each wavelength of light in a light source. As a result, spectroradiometers can differentiate between different spectrums of light that all appear to be the same color, for example different varieties of white light (see Figure 3).^11-13

Figure 3.Spectra of several “white” light sources measured using a spectroradiometer. Image credit: Admesy.¹³

There are advantages and disadvantages to both light analysis devices. Whilst spectroradiometers provide a more detailed measurement of the light source, they are generally slower, more expensive, and more complex to operate and interpret than colorimeters. Colorimeters offer outstanding repeatability.^11-13

Colorimeters are extremely accurate for routine comparisons and color measurements. As a result, they are critical for quality control and are frequently utilized in the production and inspection phases of manufacturing. On the other hand, spectroradiometers provide a larger degree of versatility, flexibility, and specificity. Spectroradiometers are the ideal versatile solution for the vehicle research and development process, including color formulation and lighting system development.^12-15

Admesy的颜色测量解决方案

Admesy提供了各种各样的仪器，这些仪器专注于光和颜色测量。包括光谱仪和比色计，非常适合一系列汽车开发和制造应用。Hyperion Colilimeter提供了几乎完美的CIE 1931滤波器特性，这些特性与低噪声电路和高灵敏度相结合，从而在健壮且用户友好的系统中产生高性能比色计。

Admesy为需要光谱仪的应用提供了两种选择：HERA系列和Rhea系列。HERA系列提供了光谱测量解决方案，这些解决方案在保持高性能的同时是稳健而紧凑的。RHEA系列允许​​灵活的高端光谱测量解决方案。^16-17

参考和进一步阅读

1. ‘Fundamentals of Automotive and Engine Technology’ — Reif K, Springer, 2014.
2. “对基于发光二极管的汽车前大灯的评论” - 长X，He J，Zhou J，Fang L，Zhou X，Ren F，Xu，可再生和可持续的能源评论，2015年。
3. ‘Solid-State Automotive Lighting: Implications for Sustainability and Safety’ — Bullough JD, Sustainable Automotive Technologies, 2012.
4. ‘The Next Step — Pure Laser High-Beam for Front Lighting’ — Fiederling R, Trommer J, Feil T, Hager J, Auto Tech Review, 2016.
5. ‘Reality Check: Laser High Beam Performance in Real Driving Tests’ — Albrecht KF, Austerschulter A, Rosehahn EO, 11th International Symposium on Automotive Lighting, 2015.
6. ‘Influence of ambient lighting in a vehicle interior on the driver’s perceptions’ — Caberletti L, Elfmann K, Kummel M, Schierz C, Lighting Research and Technology, 2010.
7. ‘Effects of Automotive Interior Lighting on Driver Vision’ — Flannagan MJ, Devonshire JM, The Journal of the Illuminating Engineering Society , 2012.
8. ‘Colorimetry Applications In The Automotive Industry’ — Chao MK, Hake BP, Electro-Optical Instrumentation for Industrial Applications, 1983.
9. “高级成像色彩法” - KonjhodžićI，Khrustalev P，Young R，信息显示，2015年。
10. ‘11^thInternational Symposium on Automotive Lighting’ — Khanh TQ, Herbert Utz Verlag, 2015.
11. ‘Colorimetry: Fundamentals and Applications’ — Ohta N, Robertson A, John Wiley & Sons, 2006.
12. “在光线世界中测量颜色”https://www.admesy.com
13. ‘Spectrometry: General Spectrometry’https://www.admesy.com/application/general-spectrometry/
14. ‘Visual and Instrumental Assessments of Color Differences in Automotive Coatings’ — Gómez O, Perales E, Chorro E, Burgos FJ, Viqueira V, Vilaseca M, Martínez-Verdú FM, Pujol J, Color Application and Research, 2016.
15. “ Hyperion系列”https://www.admesy.com/product/hyperion-i/
16. ‘Hera Series’https://www.admesy.com/product/hera/
17. ‘Rhea Series’https://www.admesy.com/product/rhea/

This information has been sourced, reviewed and adapted from materials provided by Admesy.

有关此消息来源的更多信息，请访问Admesy。