The full form of ORVM is Outside Rear View Mirror. It’s used on Technology ,Automotive in Worldwide

A rear-view mirror (or rearview mirror) is a flat mirror in automobiles and other vehicles, designed to allow the driver to see rearward through the vehicle’s rear window (rear windshield).

In cars, the rear-view mirror is usually affixed to the top of the windshield on a double-swivel mount allowing it to be adjusted to suit the height and viewing angle of any driver and to swing harmlessly out of the way if impacted by a vehicle occupant in a collision.

The rear-view mirror is augmented by one or more side-view mirrors, which serve as the only rear-vision mirrors on trucks, motorcycles and bicycles.

All cars come with a rearview mirror. However, drivers may not be sure to which mirror the term refers or how to properly use it. Rearview mirrors increase driver awareness, which results in heightened safety. For the sake of this article, we will limit the use of the term “rearview mirror” to the interior mirror that you use to look through the rear window of your car to see what’s going on behind your vehicle.