Sliding Through Time: Invention of Automatic Doors

Automatic doors are everywhere today – from hospitals and airports to shopping malls – opening at our approach without a second thought. But these doors, a symbol of modern convenience and accessibility, have a surprisingly long and fascinating history.

Ancient Origins

The invention of automatic doors dates back to ancient Greece. Around the 1st century AD, engineer Heron of Alexandria designed a steam-powered mechanism to open temple doors – an early example of automation. Though primitive, Heron’s design laid the groundwork for future innovations.

You can read how Heron of Alexandria created the door system here: Artefacts website

Mechanical Evolution

For centuries, doors remained manual until the 20th century brought major advancements. In the 1950s, Dee Horton and Lew Hewitt invented the first modern sliding automatic door using sensors and motors. Later, Charles Franklin developed the swinging version using infrared technology, expanding the possibilities for different building layouts.

The Tech Behind the Doors

Today’s automatic doors use motion detectors, infrared sensors, and microprocessor-based control systems. These ensure smooth operation, customizable settings, and built-in safety features. Whether sliding, swinging, or revolving, modern automatic doors are engineered for efficiency and ease of use.

Widespread Applications

Automatic doors are vital in healthcare, retail, and transportation. They improve hygiene, accessibility, and energy efficiency – especially in high-traffic areas. For businesses, they enhance customer experience and reduce energy costs by limiting air exchange.

What’s Next?

The future of automatic doors is getting smarter. Expect to see more biometric access, smart building integration, and eco-friendly designs – like solar-powered systems and energy-harvesting sensors.

Final Thoughts

What started as a steam-powered curiosity has become a standard in modern architecture. Automatic doors continue to shape how we move through the world – quietly, efficiently, and with greater accessibility for all.