The invention relates to an in-vehicle back viewing technology. A distance-measurable in-vehicle back viewing system comprises an in-vehicle rearview mirror with a sighting reference line and a distance expression dial gauge, and vehicle rear bumper glass with a sighting scribed line. The distance from an object behind a vehicle to the vehicle can read from the in-vehicle rearview mirror by sighting the object behind the vehicle twice through a method of scribing sighting lines on the in-vehicle rearview mirror and the vehicle rear bumper glass by a subtriangular principle or an actual measuring method, so that the reference is provided for the driving safety.


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    Title :

    Distance-measurable in-vehicle back viewing system


    Contributors:
    WU JINSONG (author)

    Publication date :

    2015-07-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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