Abstract: An area of interest display system of the type wherein area of interest imagery of relatively great detail and resolution is displayed in the spatial position of the foveal region of the eye of an observer and background imagery of relatively lesser detail and resolution is displayed about the area of interest imagery is disclosed. An improved display is achieved by optically blending and projecting the area of interest imagery and the background imagery with a common servo optical system.

Abstract: A method of modifying projected images is disclosed wherein light is projected on a screen in a manner which provides information concerning the desired characteristics of the image. The parameters of optical attenuators required to obtain the desired image are derived by exposing a section of light sensitive material to light from the screen while the section is situated at an intermediate image plane in the optical system of at least one projector. Subsequently, the exposed section is processed to recite the information recorded thereon visible. The desired characteristics of a field stop attenuator are obtained by modifying the shape of the projected image to the shape desired. The desired characteristics of a neutral density attenuator are obtained by modifying the intensity of the projected image to that desired. The method may be used with either single-channel or multi-channel projection apparatus.