Method and device for adjusting polarized light

Abstract

The embodiment of the invention provides a polarized light adjusting method and device and relates to the field of in-vehicle technology. By means of the polarized light adjusting method and device, the road condition can be effectively identified under bad weather, and the safety during driving is improved. The polarized light adjusting method comprises the steps that the light intensity of incident light beams is detected; a target liquid crystal polarization rotation film is selected to cover a vehicle window according to the light intensity of the incident light beams, and the target liquid crystal polarization rotation film comprises a first liquid crystal polarization rotation film body and / or a second liquid crystal polarization rotation film body; and the arrangement direction of liquid crystal molecules in the target liquid crystal polarization rotation film is adjusted so that the polarization state of the incident light beams can be changed. The polarized light adjusting method can be applied to the road condition identification process during driving.

Description

technical field [0001] The invention relates to the field of vehicle technology, in particular to a method and device for adjusting polarized light. Background technique [0002] Dazzle refers to the visual condition that causes visual discomfort and reduces the visibility of objects due to unsuitable brightness distribution or extreme brightness contrast in space or time in the field of vision. It has a certain impact on the eyes and causes eye discomfort, and the glare generated while driving may cause certain dangers. [0003] In this regard, the driver can wear anti-glare glasses to reduce the impact of glare, but this kind of anti-glare glasses can only eliminate the glare of a certain intensity range, and the ambient light in the driving process changes in real time. When it is strong, the anti-glare glasses cannot completely eliminate the glare, thereby reducing the visibility of objects. In the dark night, the anti-glare glasses block the light of other scenes while...

AI Technical Summary

Problems solved by technology

[0003] In this regard, the driver can wear anti-glare glasses to reduce the impact of glare, but this kind of anti-glare glasses can only eliminate the glare of a certain intensity range, and the ambient light in the driving process changes in real time. When it is strong, the anti-glare glasses cannot completely eliminate the glare, thereby reducing the visibility of objects. In the dark night, the anti-glare glasses block the light of other scenes while blocking the strong light, so that the driver cannot see the road conditions clearly. prone to traffic accidents

[0004] Therefore, the current anti-glare glasses cannot enable the driver to effectively identify the road conditions in bad weather, thereby increasing the safety hazards when driving.

Images