Mary Van Brittan Brown (1922 – 1999) – Home Camera Security System
An African American nurse named Mary Van Britta Brown spent many nights alone at her home in Queens, New York, in the 1960s. The crime rate was high in the neighborhood, making her feel unsafe each time her husband was away. In addition, the police were largely unresponsive and could sometimes be unreliable. In 1966, out of necessity, she built a homemade security system comprised of cameras connected to a monitor.
The camera could mechanically slide into several peepholes in the front door and broadcast the image to the screen. The design allowed her to survey the neighborhood from the indoor comfort of her home and avoid having unwanted guests around. Van Brittan Brown continued improving the system by adding a microphone to speak to the person at the door, a button to call the police, and an unlock mechanism. She and her husband were awarded the patent for the system in 1969. Modern home security systems feature various elements based on their design.