A mirror system for a side or rear view mirror of a vehicle includes a light absorbing layer and an optical film having a plurality of layers disposed on the light absorbing layer. For substantially vertical incident light and blue, green, and red wavelength ranges extending from about 420 nm to 485 nm, from 525 nm to 575 nm, and from 625 nm to 740 nm, respectively, and for at least one polarization state, the plurality of layers includes a reflection band having a substantially flat top region that is at least 100 nm wide. The reflection band includes a left band edge and a right band edge on a short wavelength side and a long wavelength side, respectively. The plurality of layers have an average optical reflectance, R1, of greater than about 70% and a standard deviation of less than about 5% in the substantially planar top region. In the blue wavelength range, the average optical reflectance Rb is less than about 0.8 R1.
一种用于车辆的侧视镜或后视镜的镜系统包括光吸收层和具有设置在该光吸收层上的多个层的光学膜。对于基本上垂直入射光和分别从约420nm延伸至485nm、从525nm延伸至575nm和从625nm延伸至740nm的蓝色波长范围、绿色波长范围和红色波长范围,并且对于至少一个偏振态,该多个层包括具有至少100nm宽的基本上平坦的顶部区域的反射带。该反射带包括分别在短波长侧和长波长侧的左带边缘和右带边缘。该多个层在该基本上平坦的顶部区域中具有大于约70%的平均光学反射率R1和小于约5%的标准偏差。在该蓝色波长范围中,平均光学反射率Rb小于约0.8R1。
Optical system for side/rear view mirror of vehicle
用于车辆的侧/后视镜的光学系统
2023-06-30
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Vehicle rear-view side mirror with multifunctional signal
European Patent Office | 2017
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