the history of the two way mirror
To the right is the patent diagram of the first two way mirror.
The first two way mirror, called the 'transparent mirror' was invented by Emil Bloch. He was a Russian who living in Cincinnati, Ohio when he patented his 'transparent mirror' on February 17th, 1903. Emil's design was close to what we call a two way mirror today. It had a thinner layer of reflective metal on it so that in certain lighting conditions it could act as a window, while in regular lighting conditions, it acted as a regular mirror.
The first two way mirror, called the 'transparent mirror' was invented by Emil Bloch. He was a Russian who living in Cincinnati, Ohio when he patented his 'transparent mirror' on February 17th, 1903. Emil's design was close to what we call a two way mirror today. It had a thinner layer of reflective metal on it so that in certain lighting conditions it could act as a window, while in regular lighting conditions, it acted as a regular mirror.