Abstract:
A mechanism for selectively positioning a plurality of different lens units along the optical center-line of a photographic printer. The lens units are mounted on a common carrier and are successively moved into alignment along the optical center-line in response to overall movement of the common carrier, such as along a path that is oblique to the optical center-line. The plurality of different lens units are typically arranged substantially horizontally with respect to one another on the common carrier, and typically include a plurality of lenses having different powers of magnification of focal lengths. The common carrier engages a threaded drive bar disposed substantially parallel to the path that is oblique to the optical center-line to produce movement of the common carrier in relation to the optical center-line. The drive system cooperates with a guide means to retain the original orientation of the common carrier as the common carrier moves along the oblique path. A mask operates to isolate the remaining lens units from the photographic printer. The invention herein further includes an invention methodology for exposing a photographic print on an elongated web of photographic paper from an elongated strip of photographic negative images in a photographic printer using the mechanism previously described.
Abstract:
The invention is an apparatus and method for cutting a long roll of photographic prints into individual sheets, and for collating and packaging of those sheets. An automatic print cutter separates a long roll of photographic paper into sheets based on the location of a series of registration marks on the roll. Those photographs which are to be packaged together are collected and are transported by conveyor to a collating station where additional printed materials and packaging may be added to the batch. The batch of photographs and other materials is then conveyed to a packaging station, where the batch is inserted into a flexible bag for further handling. A printer associated with the packaging station prints information regarding the batch on the exterior of the package.
Abstract:
A film drive mechanism for positioning film relative to an aperture in a riser block of a photographic printer. The mechanism provides the usual ability to adjust each frame of film in the X axis paralleling the direction of film movement, adjust each frame in the Y axis transverse to the direction of film movement, crop each frame by selectively varying the size and configuration of the riser block aperture, and selectively move each frame between portrait and landscape formats. Additionally, a mechanism is provided to rotate each frame of film relative to the aperture in the riser block so as to correct for exposures made with cameras that are not level.
Abstract:
A method and apparatus for determining the edge of an individual frame of photographic film on a strip of photographic film being moved along a photographic film transport path. A plurality of light sensors are positioned in a substantially linear array substantially perpendicular to and on one side of the path and a light is shined through the film toward the array of light sensors as the strip passes along the path. By sensing the level of illumination incident upon each of the sensors and comparing the level of illumination incident thereon with a predetermined level corresponding to a known degree of opacity associated with the interframe border between individual frames on the film, the presence of a film edge can be determined when the level of illumination associated with a predetermined number of tile sensors corresponds to a degree of opacity at least as great as the predetermined level. Also disclosed is a methodology for measuring the size and optical center of an image in an individual frame of photographic film by measuring the rate of change of sensed density of the film at a plurality of transversely spaced locations as the film is moved incrementally therepast.
Abstract:
The invention is an improved spindle for guiding photographic film, paper and similar flexible materials subject to handling and transport in long rolls. The spindle is constructed of lightweight material, and features two pairs of curved shoulders, each of specific radius. The first shoulder supports the transported materials at opposing edges, and spaces the material away from the central portion of the spindle. The second shoulder protects the edge of the material, centers the material on the spindle, and guides the material to a centered position on the spindle in the event the material becomes inadvertently mis-centered.
Abstract:
A mask mechanism which allows the dimensional adjustment of at least one of the exposure apertures associated with a photographic printer. The mask mechanism includes a substantially planar plate member that has a rectangular opening therethrough. A pair of movable gates are disposed on opposite sides of the rectangular opening and at least one pneumatic cylinder operates to move these gates between a first open position and a second restricted position. The gates include a substantially linear outer edges oriented parallel to one another to maintain the rectangular nature of the exposure aperture. Typically, the mask mechanism would take the form of a negative cropping riser block or a photographic paper mask assembly. In this manner, either, or both, the exposure aperture associated with the negative or the exposure aperture associated with the photographic paper as it relates to the overall photographic printer can be controlled, respectively. The gates are adapted to positively move between a plurality of positions using a plurality of pneumatic cylinders to move each of the moveable gates between a plurality of positions. At least one spring member operates to bias the pair of movable gates disposed on opposite sides of the rectangular opening toward the widest open positions, and at least one shaft operates to maintain the alignment of the pair of movable gates as the gates move between various positions.
Abstract:
The invention is an improvement to punches for placing one or more openings on the edge of a sheet of material. A collection of individual punch pins are carried within bores in a punch block. Movement of the pins is constrained by a corresponding collection of pneumatic actuators. The constrained pins are driven against a die block to affect the punching operation. To insure that the punch pins do not interfere with the operation of the pneumatic actuators between machine cycles, a fixed retraction guide cooperates with a relieved section on each punch pin to position each pin at one extremity of the bore within which the actuator travels.
Abstract:
The invention is an improved removable film transport for photographic equipment. A roll of film is transported through the drive by a drive reel, a take-up reel, and a supply reel. The drive allows the presentation of a selected frame from the roll of film in precise relationship to photographic equipment on which it may be mounted, such as a printer or color analyzer. Incremental adjustment of the X-axis and Y-axis of the film in relation to the photographic equipment is easily located through the use of a stepper motor and a pair of nested, sliding and interconnected frames. The drive also includes a reading device for sensing and decoding machine readable marks placed on the roll of film, and includes the necessary interface between the drive and a computer or computer network. A special drive roller mechanism minimizes risk of damage to the surface of the film during operation of the drive.
Abstract:
An apparatus for marking data on photographic prints being made in a photographic printing machine comprises an LED/fiber optic dot-matrix printing device mounted within the printing machine. Data corresponding to the prints being made is entered via a keyboard and converted into a series of dot-matrix light patterns on said LED array, which patterns are then transmitted to a marking head mounted adjacent the path of the printing paper through the machine by way of a plurality of optical fibers.
Abstract:
The invention consists of improved apparatus for printing information on a substantially continuous roll of photographic paper in package and proof printers. A bracket suspends the marking device over a guide roller to be utilized as the platen for the marking process. Further, by attaching the bracket to the exposure platen, the leading, preparing, maintaining and servicing of the devices are able to be suspended in this manner.