A method of making a device having a component with a planar surface bonded to a supporting frame with openings therein by an adhesive layer cured by actinic rays, wherein part of the adhesive layer lies in the shadow of opaque portions of the supporting frame, involves bringing the component and supporting frame together with a layer of adhesive applied between them. The part of the adhesive layer in the shadow of the opaque portions is cured by directing actinic rays obliquely through the openings so that they are reflected internally into the part of the adhesive layer in the shadow of the opaque portions.