The collection has been curated from a decade of outtakes and never before seen photographs from Ray's studio, where he asks his subjects to close their eyes for a few seconds, to refresh their connection with the camera, capturing powerful moments of self-reflection.
Over 250 well known personalities have endorsed the use of their pictures, including Mind's President Stephen Fry, Ambassadors Fearne Cotton and Frankie Bridge as well as a host of other famous faces including Kylie Minogue, Idris Elba, Dermott O'Leary and Holly Willoughby.
Members of the public are also encouraged to become "part of the art" by donating £3 and uploading their own image, with their eyes closed, to the website; and, for those wanting to keep a piece of the exhibition at home, there is also the option to purchase portraits from the exhibition.
Ray Burmiston, photographer and curator of Take a Moment, said:
"The exhibition has been created from decades of outtakes from the studio and hundreds of moments where I asked my subjects to close their eyes for a few seconds, to refresh their connection with the camera.
"I found that these images had an atmosphere quite different from the purpose of the shoot, capturing powerful images of self-reflection, and now, people at home can become part of the exhibition. The organically evolving artform literally draws people in and I hope this will raise much needed funds for Mind."
The celebrity photos will be displayed on the Take a Moment website alongside those uploaded by the public to create an evolving virtual exhibition and will remain open to the public until December.