SAE J2739-2011
可替换头灯灯泡涂膜用的吸收和干涉光涂层
Absorptive and Interference Coatings Applied on Replaceable Headlamp Bulbs (Stabilized Type)
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- 标准号
- SAE J2739-2011
- 发布日期
- 2011年02月24日
- 实施日期
- 废止日期
- 无
- 中国标准分类号
- A29
- 国际标准分类号
- 29.140.20;43.040.20;87.040
- 发布单位
- 美国机动车工程师协会
- 适用范围
- This report investigates the use of single and multi-layer coatings on replaceable headlamp bulbs and how such coatings can affect the performance of bulbs in terms of light scattering, which can contribute to glare, and spectral separation in headlamps. Tests were developed to investigate the effects of absorptive and interference (multi-layer) coatings on bulbs, and on bulbs in headlamp systems. These tests provide validation for a proposed bulb color separation test, which establishes limits for spectral separation within the boundaries of SAE J578 white color requirements. The bulb color separation test provides a definitive selection criterion to identify bulbs that cause excessive light scatter (glare) and/or spectral separation in an optical system.