Abstract:
An optical system for an internal drum readout apparatus is disclosed. The optical system includes a hollow cylindrical segment defining a central axis, a support structure configured and adapted to translate along the central axis, a mirror mounted on the support structure for translational movement therewith and for rotational spinning around the central axis, a light source mounted to the support structure for providing a beam capable of being directed along the central axis which in turn is directed against the medium thereby producing a stimulated light, a detector coaxially aligned with the central axis, the detector being configured and adapted to absorb stimulated light direct toward and reflected off of the angled mirror, and a shroud mounted on the support structure for blocking stimulated light not directed toward the angled mirror, wherein the stimulated light not directed toward the angled mirror would otherwise degrade the medium prematurely.
Abstract:
Stopping and starting the movement of media in a scanner before completion of scanning can generate artifacts in the display of the scanned image. These artifacts arise from measurements made during the deceleration of the media before stopping and the acceleration of the media after starting. By scanning the regions that pass the optical sensor during deceleration and acceleration of the media while the media is moving relative to the optical sensor at a substantially constant speed, the degree to which artifacts are produced is reduced. The scanning of the sections of the media corresponding to the deceleration and acceleration distances of the media can be done by moving the optical sensor while the media is stationary, or, by moving the media while the optical sensor is stationary.
Abstract:
A method of combining the low resolution, higher signal-to-noise information with the high resolution, low signal-to-noise information created by a dual resolution CCD is disclosed.
Abstract:
A recording method and a recorder for making it possible to eliminate a slight gap occurring every revolution of a drum (rotation gap) and a slight gap occurring for each column of a two-dimensional spot arrangement (column-to-column gap), enabling high-quality image recording with no defects. In the recording method, wherein a plurality of recording elements are arranged in two dimensions consisting of rows in a main scanning direction and columns in a subscanning direction orthogonal to the main scanning direction and are used to record image information or text information on a record medium, the setup value of output energy of either of the recording elements at the ends of the recording elements in the subscanning direction, the length of the spot recorded by the recording element in the subscanning direction or the main scanning direction, or the area is made larger than that of any other recording element and recording is executed.
Abstract:
A fluid ejection and scanning assembly includes a drop ejection element that causes fluid to be ejected from an associated nozzle chamber when activated. A first photosensor is coupled to the ejection element and is configured to cause the ejection element to be activated when the photosensor is illuminated by a light source. A second photosensor captures image data based on light reflected from media.
Abstract:
A dataconferencing system comprises an imaging device adapted to generate an image of a document. The system also comprises a light source adapted to generate light proximate to the document for generating the image. A monitor application accessible by a processor is adapted to detect a change corresponding to the document. A lighting application accessible by the processor is adapted to automatically activate the light source in response to the detected change.
Abstract:
The invention discloses a system and method for an optical imaging device comprising an image sensor for reading image data from an original slid over the image sensor, a variable power interface for varying an intensity of an illumination source corresponding to the image sensor, wherein the intensity is varied responsive to velocities of the original slid over the image sensor, and a processor for processing the image data.
Abstract:
A method of producing a pixel-based image on an image carrier (7), where a plurality of pixels are generated simultaneously by an array of pixel-generating elements, has the following steps: producing on the image carrier a first partial image composed of first pixels, wherein each of the pixel-generating elements is assigned to produce one of the first pixels, and wherein the first pixels are spaced apart from each other, and producing on the image carrier at least one further partial image composed of further pixels in such a manner that the further pixels fall into the spaces between the first pixels, but none of the further pixels is generated by a pixel-generating element that has produced one of the adjacent first pixels.
Abstract:
An apparatus for optically projecting pixel-based image information onto a light-sensitive material has an image-generating device, an optical projection device, and a device for laterally offsetting the projected image of the image-generating device to produce a plurality of mutually offset partial images in the image plane. The offsetting device has two optical elements arranged in sequence in the light path of the projection. The projected partial images are offset relative to each other by tilting one or both of the optical elements.
Abstract:
The present invention provides a repeatedly sampling method for image scanning. It is mainly a sample treatment procedure proceeded for the data of an image scanning device during the scanning of an image. The method mainly includes the steps of sampling, sorting, eliminating group-departing value, and getting mean value, etc. Wherein, the sampling procedure makes several times of scanning pick-up on a single point of the image to produce several sets of sampling value; the sorting procedure sorts the several sets of sampling value after being sampled according to their magnitudes; the eliminating group-departing value procedure gives up the relatively larger values and relatively smaller values from the several sets of sampling value after being sorted; the getting mean value procedure gets a mean value from the several sets of sampling value. By applying the repeatedly sampling method of entirety of the invention, it may reduce the error of data pick-up during the procedure of scanning.