For more than half a century, motor vehicles have been using rearview mirrors as a standard driving safety device. You use the same glass reflective rearview mirrors in your car that your grandfather did.

Problems of Common Rear View Glass Mirrors

Every single time you get into your car, ready to back up, you always pull out slowly because you are not 100% sure if there is anything behind your vehicle that you cannot see in your rearview mirrors. 3 out of 10 drivers may have experienced hitting something when backing up their vehicle. All this means that the rearview mirrors could not clear all blind spot behind a vehicle.       

Your rear view is like this

Glass Rear View Mirrors VS. Optoelectronic Cameras & LCD

Thanks to the rapid development of optoelectronic technologies. We can now build a safety view optoelectronic system using CMOS or CCD cameras and small flat panel LCD screens that can perform more functions than reflective glass mirrors do.

Currently, entry level trial safety view cameras system: like license plate-mounted, and drill hole-mounted fish eye wide angle cameras are available in the market.. And they combo with either black/ White universal small LCD or some  tiny LCD screen mounted inside the rearview mirror or on the rearview.

Common  License plate fisheye camera     &,      on dash LCD monitor

Sonar Sensors VS. Cameras & LCD

Recently, distance-detecting sonar ultrasonic sensors that can embed on vehicle rear bumpers are available.  Sensors in the back bumper start to beep as you approach an object, and beep more rapidly as you get closer to the object. What abut if the sensors or circuit board were defective due to any 1 of  these malfunctions: sensor out of work, broken sensor wire, rain moisture circuit shorted, circuit board rain rusted.

Sonar multi sensor detecting                                     Do you see your rear blind spot ?

Obviously, sonar detectors are not safe to detect children behind your vehicle ?  With this type of sensors, drivers still do not see the object, and are still operating at a semi-blind status. This is problematic, especially in time-sensitive situations. 

In contrast to use camera + LCD visual safety system,  either the camera or the LCD out of work, the screen would show no image on the screen. That will avoid drivers blind detect children behind your vehicle with a defective sonar sensors system.

               Common CMOS/ CCD amateur camera                                                                            A small LCD in a rear mirror

 Problems of  Common Single Head Safety View Camera Devices

These trial version entry level safety view cameras system express the safety rear view need of the market. However, they common characterize following problems : 

1. Video image is shrunk to tiny, due to use fish eye camera to cover as wide angle view as possible;
2. Video image is heavy convex distortion and fussy, not comparable to rear view glass mirror image;
3. Video image is inaccurate to determine proximity distance;
4. No night vision capable, snow fall noise covers the video screen at dark view ;
5. Smear and over burn video image will happen if video camera is project by real vehicle spot head light;
6. Most of entry level cameras are over size, difficult to mount them external. Need high labor cost custom installation;
7. Fisheye pin hole cameras require to drill large hole on your vehicle, poor proximity view;
8. Multi screen safety view system is not yet available for neither small vehicles nor large truck vehicles.