Valerie Thomas attended a science exhibition where she encountered concave mirrors creating the illusion of three-dimensional objects. This experience sparked her curiosity and led her to investigate the potential of using curved mirrors for creating optical illusions in technology.

Following her inspiration, Thomas dedicated time to researching and experimenting with curved mirrors. She explored various configurations and techniques to understand how they could manipulate light and create the desired three-dimensional effect. This involved extensive testing and refinement of her ideas.

After several years of research and development, Valerie Thomas successfully patented her invention, the Illusion Transmitter. The patent (US4229761A) outlined the device's design and functionality, protecting her intellectual property and recognizing her innovative contribution.

Although the Illusion Transmitter was not widely adopted commercially, its potential applications were significant and varied. These included creating three-dimensional images for medical diagnostics (such as viewing internal organs), improving television technology, and potentially creating new forms of visual entertainment.

While the Illusion Transmitter itself may not be a household name, it stands as a testament to Valerie Thomas's inventive spirit and her ability to translate theoretical knowledge into practical innovations. It continues to inspire aspiring scientists and engineers, particularly in the fields of optics and image processing.