Design method of anti-dazzle liquid crystal spectacles and device

Abstract

The invention relates to a pair of liquid crystal spectacles, especially to an anti-dazzle liquid crystal lens for preventing interference with visual sense of a driver when two vehicles cross each other and a pair of spectacles prepared from the anti-dazzle liquid crystal lens. The pair of anti-dazzle spectacles contains a spectacle frame (3), a right lens (2) and a left lens (1). The right lens (2) and the left lens (1) respectively have a high-perspective zone and at least a low-perspective zone. Two ends of the low-perspective zone are provided with electrodes. The pair of anti-dazzle spectacles also contains an illuminance sensor and a control circuit. The illuminance sensor contains at least an opposite vehicle lamplight detector which receives illuminance of opposite vehicle lamplight in the illumination direction, and output is used as signal voltage. The control circuit contains an illuminance comparator and a square wave generator. The square save generator converts DC voltage outputted by the illuminance comparator to AC voltage or square wave. An output end of the square wave generator is connected with the electrodes at two ends of the low-perspective zone. The device provided by the invention can be anti-dazzle and can increase visual comfort level of a driver.

Description

technical field [0001] The invention relates to a pair of glasses, in particular to an anti-dazzling glasses for preventing drivers' vision from being disturbed when a vehicle passes by. Background technique [0002] Drivers know that when driving at night, if the lights of the vehicles on the opposite lane are turned on (especially the high beam lights), the visual impact on the driver is very obvious, and even the road ahead cannot be seen clearly, which poses a great safety hazard; Prevent above-mentioned situation from happening, the research of all kinds of anti-glare glasses also increases gradually. Typical anti-glare glasses are as described in the CN88220466.1 document, which uses anti-glare colored lenses in a part of the spectacle lens area according to the position of the opposite vehicle in the driver's line of sight, while the other part adopts ordinary lenses. This kind of glasses can achieve anti-glare function to a certain extent, but its shortcomings are a...

AI Technical Summary

Problems solved by technology

This kind of glasses can achieve anti-glare function to a certain extent, but its disadvantages are also obvious. First, the colored lens transmittance of the lens is low. When there is no vehicle or headlight on the opposite side, one lens The difference in transmittance between the two areas of the lens is too large, which is very bad for the driver's visual experience; secondly, if you want to increase the comfort of the driver's eyes when there is no headlight on the opposite side, then it is necessary to increase the transmittance of the colored lens. rate, and if the transmittance of the colored lens is too high, it will be difficult to play the role of anti-dazzling; another kind of anti-glare glasses, as described in the document CN201020655051.5, controls the filter through a set of manual mechanical structure. The position of the light sheet, adjust the position of the filter before each use

Although the position of the optical filter of this anti-glare glasses can be considered to be regulated by the mechanical structure, it is still inconvenient to adjust during the driver's driving. Existing problems; if adjusted, there will be a great hidden danger to the driver's driving safety

Moreover, this adjustment sometimes needs to be very frequent, which is even more inconvenient.

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