Liquid crystal lens automobile headlight and method for automatically adjusting far and near light

Abstract

The invention discloses a liquid crystal lens automobile headlight and a method for automatically adjusting the far and near beam modes. The liquid crystal lens automobile headlight comprises a light bulb, a lampshade reflector reflecting light emitted by the light bulb, a light bulb power supply control unit for providing driving voltage for the light bulb, and a light bulb mounted on the light bulb. The light distribution mirror in the light-emitting direction also includes a liquid crystal lens placed between the light bulb and the light distribution mirror, a light intensity sensing device, a regulation unit and a first power supply control unit, the liquid crystal lens is used to control the divergence of the light bulb beam, so The light intensity sensing device senses the intensity of light, the regulating unit is connected to the light intensity sensing device, and the first power control unit provides a driving voltage for the liquid crystal lens. In the present invention, a liquid crystal lens and a polymer-stabilized liquid crystal glass are added between the light distribution mirror and the bulb, and a first power supply control unit and a second power supply control unit are connected to both ends of the electrodes of the polymer-stabilized liquid crystal glass and the liquid crystal lens. So as to achieve automatic switching between low beam mode and high beam mode.

Description

technical field [0001] The invention relates to the field of adjusting far and near beam modes of automobile headlights, in particular to a liquid crystal lens automobile headlight and a method for automatically adjusting the far and near beam modes. Background technique [0002] With the continuous development and progress of the times, more and more people have driven cars. The most troublesome thing to drive at night is to drive head-on. Some drivers turn on the high-beam headlights to the end, and when encountering oncoming cars, they are not in time or forget to adjust to low-beam headlights. It is easy to cause the oncoming car driver to see the road ahead clearly because of the glare of the strong high beam, resulting in traffic accidents. [0003] At present, split-type automobile headlights include two independent lamps, high beam and low beam. When a driver encounters an oncoming vehicle, he needs to manually adjust and convert the high and low beams. The process ...

AI Technical Summary

Problems solved by technology

[0004] Although there are also some integrated far and near beams on the market, such as dual-power H4 bulbs, one bulb has two sets of filaments, one set of filaments is on when the low beam is on, and two sets of filaments are on when the high beam is on, but this kind of light has a short service life and frequent The replacement of the filament leads to a shorter service life; the other one is the xenon headlight, which only adds a shading plate when the low beam is low. It is a heavy metal lamp, long-term use is not conducive to environmental protection, and it does not conform to the energy-saving and environmental protection trend of future cars

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