This unique type of glass, characterized by its distinctive blueish-purple hue, is known for its unusual light-filtering properties, specifically transmitting near-infrared and some ultraviolet wavelengths while blocking most visible light. Initially developed in the early 20th century, its early applications included photography and scientific research.
Historically, this specialized glass played a role in astronomical photography, enabling the capture of celestial objects otherwise difficult to observe. Its ability to transmit specific wavelengths has potential benefits in various fields, though wider adoption has been limited by factors such as cost and manufacturing challenges. The precise control over light transmission holds promise for applications in areas like medical imaging and materials science.