Abstract: Apparatus for processing dental X-ray film chips includes a film packet enclosing a film chip with pods containing developer material on one end thereof and pods containing fixer material on the other end thereof. The packet with the exposed film chip is positioned in a processor with pressure roller adjacent each end thereof. The processor transports the packet past one of the pressure rollers to rupture the developer pods and evenly spread the developer material therein over the surfaces of the film chip. After a preset developer period, the processor transports the packet past the other pressure roller to rupture the fixer pods and evenly spread the fixer material therein over the surfaces of the film chip. After a preset fixer period the processor returns the packet to its original position for removal therefrom.

Abstract: A viewer is provided which is especially adapted for viewing dental X-ray films taken of the mouth of a patient. The viewer is provided with a throat extending inwardly from the front thereof which vertically divides the housing into upper and lower sections. A display screen is provided on the front of the upper section of the housing with a light compartment for a light source on the side thereof. The light source includes a dichroic filter for filtering out the infrared rays of the high intensity light provided and a condensing lens for projecting the visible rays down through a film located in the throat to provide an image bearing beam. In the lower section of the housing, a mirror located below the film horizontally reflects the image bearing beam through a projection lens onto a second mirror which directs the image bearing beam rearwardly and upwardly onto a rear mirror located on the upper section of the housing opposite the screen.

Abstract: A non-contact digital contour generator is provided for generating the X, Y and Z coordinates of the complex contoured surface of a three-dimensional model. The generator includes an illuminator digitally movable along the Z axis for providing contour lines about the model at successive levels or planes thereof. A camera having its optical axis disposed perpendicular to the Z planes is also digitally movable along the Z axis and provides for focussing the images of the contour lines on the model onto the X-Y image plane of the camera. Located within the camera so as to lie in the image plane thereof are scanning means including photosensitive means operable to digitally scan the image plane and thereby provide X and Y coordinates of the images of the contour lines which together with the Z coordinates of the illuminator define the surface of the model.

Abstract: A portable slating device comprises a light-tight housing having a lens on the front thereof and a copyholder on the rear thereof. When the lens on the front end of the housing is positioned adjacent the lens of a movie camera whose scene takes are to be identified by slating information, the housing lens functions as a supplementary close-up lens cooperating with the camera lens to sharply focus the information in the copyholder onto the film in the movie camera. When the filming of a scene-take starts, the operator closes a switch for simultaneously energizing a synchronizing light bulb located within the housing and an audio signal device mounted on the housing to provide for synchronizing the visual action of the film with the sound track.