Photographic elements containing vesicles of rhodopsin and lipids

Abstract From the Canadian patent

Abstract of the Disclosure A photographic element comprises a support having thereon a binder containing numerous vesicles each vesicle, comprising a matrix of lipid membranes containing rhodopsin and one of, a) metal cations or, b) materials selected from the group consisting of chelatometric materials, colorimetric reagents for said metal cations, materials which are caused to react by the presence of said metal cations to form a gas or a visible reaction product, and materials which form elemental metal through redox reactions with said metal cations, inside the vesicles and the other a) or b) outside the vesicles. On imagewise exposure to light the metal cations, flow through the …