摘要:
Die Erfindung betrifft eine Vorrichtung zur Bildinspektion von Druckbogen (16) auf einem rotierenden Zylinder (7, 9). Die Vorrichtung zeichnet sich dadurch aus, dass eine Abtasteinrichtung (6) zur Erfassung einzelner Bildpunkte (10, 11) der Druckbogen (16) auf dem rotierenden Zylinder (7, 9) vorgesehen ist und dass nach Erfassung eines ersten Druckbogens (16) durch die Abtasteinrichtung (6) auf dem rotierenden Zylinder (7, 9) wenigstens einer der nachfolgenden Druckbogen (16) um einen Bruchteil eines Bildpunktes (10, 11) versetzt von der Abtasteinrichtung (6) erfasst wird.
摘要:
Four beams are caused to scan a scanning surface in the main scanning direction in parallel. The beams expose the target area between two optical sensors, not the surface of a photosensitive drum, to produce correction data to correct shifts in the exposure positions of the four beams in the main scanning direction with an accuracy of less than a small fraction of one pixel. On the basis of the correction data, an actual image formation area is set on the photosensitive drum. This makes it possible to always control the relative exposure scanning position accurately even when the relationship between the main scanning positions of the light beams is unknown.
摘要:
In order to provide an image processing apparatus which can satisfy both requirements for the balance between a storage time in a high-resolution mode and that in a low-resolution mode and high-speed reading operation in the low-resolution mode, the image processing apparatus of this invention includes an image sensing unit which includes a first element array having a plurality of photoelectric conversion elements arranged in a line, and a second element array shifted from the first element array by a predetermined distance in a main scanning direction and having a plurality of photoelectric conversion elements arranged in a line, and outputs signals of the first and second element arrays from a single output portion, and a driving unit having a first mode of reading signals from the second element array and continuously outputting the signals from the output portion, and a second mode of reading signals from the first element array and continuously outputting the signals from the output portion.
摘要:
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.
摘要:
A photographic film scanner (305) for scanning a film strip containing a plurality of photographic images is disclosed. The film strip is advanced through the scanner and a digital image of the film strip is created. Individual images contained in the digital image of the film strip are located and displayed. The film strip is scanned at any of a variety of resolutions.
摘要:
An optical scanning apparatus with a summing means to add the contents of two adjacent pixel sensors is suggested, thus summarizing each two adjacent pixels in low-resolution scanning mode. A CCD line sensor with two separate shift registers for odd and even pixels is used. In the low-resolution mode clocks are used to control odd and auxiliary gates (3, 5). In contrast to a high-resolution mode the clock for the even photo gates (4) is inactive.
摘要:
A multiple resolution scanner device (10) for scanning an object may comprise a first optical wave guide bundle (26) having a light input end (38), a light output end (40), and a first reduction ratio associated therewith. The light input end (38) of the first optical wave guide bundle (26) is arranged to receive image light from the object being scanned. A second optical wave guide bundle (28) having a light input end (48) and a light output end (50) has a second reduction ratio associated therewith that is different than the first reduction ratio associated with the first optical wave guide bundle (26). The light input end (48) of the second optical wave guide bundle (28) is arranged to receive image light from the object being scanned. A detector (30) positioned adjacent the light output ends (40, 50) of the first and second optical wave guide bundles (26, 28) receives image light from the light output ends (40, 50) and produces an image data signal (60) related to image light received from the light output ends (40, 50). An optical wave guide selection apparatus (58) operatively associated with the scanner device (10) selects an optical wave guide bundle (26, 28), the image light from which is used by the detector (30) to produce the image data signal (60).
摘要:
An original reader such as an image scanner for inputting image information, provided with a optical source for illuminating an original, a lens unit (8) capable of optically changing resolution, and a solid-state image sensor substrate placed on an image forming plane (10) of the lens, wherein the lens unit (8) includes a plurality of lenses that can deal with a plurality of different resolution and one lens corresponding to a specified resolution is selectively moved into a light path. The lens unit and the solid-state image sensor substrate are independently movable in the direction of optical axis for focusing.
摘要:
A scanning apparatus (100) providing separate fixed object focal planes for transmissive (2091) and reflective (2090) original documents to be scanned, wherein a scan carriage (220) containing illumination (6016), sensor (6014), and optical elements (6006, 6010) is moved together to scan an original document and to obtain a digitized representation thereof. The movable scan carriage has an illumination source disposed between the reflective (106) and transmissive (210) object focal planes, with the object focal plane to be used selected by changing the position of a single optical element (2002) within the scan carriage. The illumination source comprises a single lamp (2020) disposed for correct illumination of the selected object focal plane. Automatic resolution selection and focusing of the original image can occur using a converging device (2012) comprising a first (3004) and second (3004) focusing lens.