approaching vehicles, respectively. In 1991, exterior electrochromic mirrors were added to the Gentex product line. These mirrors operate on the same principle as the interior mirrors. In 1997 the geometry of the mirror's surface was adapted to create spherically curved glass with the goals of eliminating blind spots and offering an expanded field of view. Gentex introduced the Gentex Full Display Mirror, which provides a video display with a panoramic view of what is behind the vehicle. Air quality and smoke detection Gentex is expanding its smoke detection capabilities, developing sensing units for use in cars and other vehicles, to continuously sample air quality for smoke, vaping, and other airborne contaminants. Sensors in publicly used vehicles could have both sanitation and security applications. Additional features Compass/Temperature display Map light OnStar HomeLink Wireless Control System Tire pressure indicator SmartBeam, the company's automatic headlight dimmer Automotive grade microphones Rear camera display (RCD) - a realtime panoramic view of the rear of the vehicle only when in reverse gear Exterior mirror turn signal repeaters Complex exterior mirror geometries Aerospace Gentex and PPG Aerospace have delivered electrochromic smart windows for the Boeing 787 Dreamliner. These windows use viologens and a redox agent to adjust the amount of light that is allowed through the window, a similar technology to Gentex' auto-dimming rearview mirrors. The aircraft windows are electronically controlled: an electrical signal affects the action of a conductive medium between layers of glass. The windows can be adjusted by the passenger or crew to control the amount of light that enters, with five levels from completely clear to completely darkened. The windows are 60 percent larger than standard aircraft windows. The aircraft window was included in the exhibition Design Life Now: National Design Triennial, which appeared at the Smithsonian's Cooper-Hewitt National Design Museum in New York City at the Institute of Contemporary Art, Boston in 2007. Gentex is also developing electronically dimmable windows for aircraft that are capable of automatically responding to changes in sunlight, adapting for example when an aircraft turns. The windows can darken to complete black-out capability in under 30 seconds. Gentex is AS9100 certified, an industry standard required by the majority of major aircraft manufacturers, and is capable of meeting production standards as an Original Equipment Manufacturer (OEM) for aircraft. References External links official Gentex website SEC Info, 2006 Auto parts suppliers of the United States Fire detection and alarm companies