Abstract:
A lighting unit, particularly adapted for use in motion picture photography, employing a reflector element and a screen-like lens displaceably mounted for movement between a storage position overlying and in close proximity to the source of illumination and an operable position spaced from the source. The reflector element and the lens are pivotally mounted on a platform-like base, which is adapted to receive an incandescent lamp, for pivotal motion from a first position overlying and in close proximity to the platform to a second position wherein at least a major portion of both are spaced from the platform so as to provide a suitable optical path between the source and the lens. A switch, mounted on the platform for engagement by the lens when it is in its closed position, is adapted to interrupt the electrical circuit and thereby prevent energization of the source of illumination when the unit is in its stored condition.
Abstract:
A system for rupturing a pod having a weakened edge portion and containing processing fluid for photographic material and for expelling the fluid therefrom. The fluid filled pod is mounted adjacent a support surface and protected by a flexible cover plate. A rigid member is initially disposed between the cover plate and the support surface adjacent the end of the rupturable pod furtherest removed from the pod''s weakened portion. Extending along the inside face of the cover plate is a rib which initially presses the section of the pod adjacent thereto against the support plate so that substantially no fluid is disposed within the pod between the rib and the support plate. The cover plate includes access means whereby externally mounted force applying means may be introduced into the space between the cover plate and the support surface to displace the rod across the length of the pod. The cover plate is deflected by the rod during its displacement across the pod and at the same time presses the rod firmly against the pod. This system can advantageously be employed in a compact multipurpose film handling cassette adapted to be inserted into a unique processor-projector unit containing the aforementioned force applying means.
Abstract:
A lens shade is provided for use with compact photographic apparatus, e.g., a camera, of the type having an objective lens and a light sensing device mounted thereon in close proximity to one another. The lens shade extends outwardly from the camera housing and shades the lens without blocking its field of view, however, the shade does extend into the overlapping field of view of the light sensing device. To overcome this problem, the lens shade is provided with a light transmitting section or louvered opening therein for selectively transmitting and directing light from portions of the overlapping field of view to the light sensing device.
Abstract:
An optical system employing a prism of minimized dimensions capable of extending the geometrical distance between a source of converging light and its focal point. The prism has a lightreceiving transparent face and a flat reflective surface for redirecting illumination through a second transparent face having a distinctive convex surface through which the beam of light exits from the prism. The distinctive convex configuration and its location upon the second transparent face permits minimization of critical dimensions of the prism.
Abstract:
A system for rupturing a pod having a weakened edge portion and containing processing fluid for photographic material and for expelling the fluid therefrom. The fluid filled pod is mounted adjacent a support surface and protected by a flexible cover plate. A rigid member is initially disposed between the cover plate and the support surface adjacent the end of the rupturable pod furtherest removed from the pod''s weakened portion. Extending along the inside face of the cover plate is a rib which initially presses the section of the pod adjacent thereto against the support plate so that substantially no fluid is disposed within the pod between the rib and the support plate. The cover plate includes access openings whereby externally mounted force applying members may be introduced into the space between the cover plate and the support surface to displace the rod across the length of the pod. The cover plate is deflected by the rod during its displacement across the pod and at the same time presses the rod firmly against the pod. This system can advantageously be employed in a compact multi-purpose film handling cassette adapted to be inserted into a unique processorprojector unit containing the aforementioned force applying members.
Abstract:
An optical system employing a prism of minimized dimensions capable of extending the geometrical distance between a source of converging light and its focal point. The prism has a lightreceiving transparent face and a flat reflective surface for redirecting illumination through a second transparent face having a distinctive convex surface through which the beam of light exits from the prism. The distinctive convex configuration and its location upon the second transparent face permits minimization of critical dimensions of the prism.
Abstract:
The combination of a prism with integrally formed mounting ears and a mounting station into which the prism and its ears are placed. Once positioned, part of the mounting station is bent to secure the prism into its predetermined location. The mounting station retains the prism through its ears and not through any optical surface. Accordingly, all three optical surfaces of the prism are left unencumbered for more efficient cooling.
Abstract:
A rear projection viewer, for projection of images of a film strip housed in a motion picture cassette, employing a single reflective mirror and an inclined viewing screen in a compact arrangement wherein the screen provides substantially the complete front face of the viewer. In its preferred embodiment, the viewer is configured for operation of a multipurpose cassette for processing of the film strip of such cassette and subsequent projection of the images recorded on such film strip, and the cassette includes a processing station adapted for optimumly dispensing processing fluid across the film strip when the cassette is maintained in an attitude such that the incremental sections of the film progressively advanced across the projection station opening are located in a predetermined plane. A cassettereceiving well, disposed in the top of the viewer housing, is adapted to receive the cassette and locate it below the top of the screen in an operative position with the progressively advanced, incremental sections of film disposed in the predetermined plane. Preferably, the screen is a lenticular structure which transmits projected images substantially uniformly over a given viewing zone, and additionally directs the viewing zone downwardly from an axis normal to the screen in at least partial compensation for the angle of inclination of the screen such that the viewing zone will include an audience area located along the longitudinal axis of the apparatus.