Abstract: A film imaging and processing system having a light beam for writing an image on film and a chemical processor for developing the film. Film density is photoelectrically monitored immediately upon completion of the chemical development to provide a signal for varying the subsequent translation of image data to writing intensity or duration of the beam. The monitoring is effected by first writing a calibration strip of film densities along the edge of the film and separate from the image thereon, corresponding to a predetermined standard, and thereafter comparing the written and subsequently developed calibration strip with the predetermined standard.

Abstract: In relation to a primary end use in nuclear medicine, namely, the recording of multiple images in a so-called dynamic study of a patient using a gamma camera wherein said multiple images are typically photographically reproduced on a single sheet of film in an appropriate format, the within inventive method obviates the need to modify the angular orientation of the images projected onto the image-receiving film sheet incident to providing same with the proper format or display position, and instead contemplates the novel alternative of properly pre-positioning the film sheets. Among other advantages and benefits is a noteworthy simplification in the construction and operational requirements of the image-projecting lens assembly of the apparatus being used to produce the photographic record.

Abstract: An apparatus of generally known classification which produces photographic records of multiple images in various display formats, i.e. a four-frame, six-frame, or other such multiple frame format arrangement of the images, wherein positional movements in the lens assembly typically used to project the image onto the film sheet is relied on to correspondingly position the image on said film sheet is herein significantly changed and, instead, the projected image is positioned by selection of an appropriately pre-positioned lens. Thus, instead of using one universally movable lens, a multiple of differently strategically positioned lenses are operationally available and are separately selected for operation based on position to correspondingly provide an appropriately positioned image on the photographic record or film sheet.