9 July 2001: A New York ban on the use of handheld phones while driving will boost sales of a Michigan USA company - Gentex - which has integrated into its flagship product auto-dim mirror a number of features including a digital compass, alarm display, tire-pressure indicator, OnStar global positioning system and, perhaps most importantly these days, a hands-free cellular phone.

Gentex has also developed light-emitting diodes for mirror products. LEDs last longer than the standard incandescent lights used in cars and generate less heat that can destroy electrical systems.

One promising product is an LED-illuminated turn signal embedded into an exterior electrochromic mirror that serves as an additional warning to occupants of nearby vehicles in the driver's blind spot. The company also has a 'smart' high beam, which dims or shuts off when it detects headlights from an oncoming car or taillights from preceding vehicles. This system is expected in a new Toyota Camry after a deal between Gentex and Toyota.

The electronic content on vehicles is always increasing and Gentex says rearview mirrors are an ideal location for increased electronic content.

First, drivers are accustomed to the mirror's placement, so it's a natural location for various user interfaces. Second, glancing at the mirror requires only subtle movements of the eyes, allowing the driver to remain focused on the road. Third, adding electronic content to the mirror is less expensive than purchasing these components from separate suppliers and designing them into the vehicle interior.
 
Future mirror features could include vehicle alarm displays, airbag indicator lights, fog sensing, rain sensor, obstacle detection/collision avoidance, gas sensing, time display, sunload sensing, rear-vision system and back-up aids. BB