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Scan type display device with image scanning function
| Details |
Inventors: Tokimoto, Toyotaro; Yajima, Hiroshi;
Assignee: Avix Inc. (Yokohama, JP)
Primary Examiner: Powell; Mark R.
Assistant Examiner:
Attorney, Agent or Firm: Pennie & Edmonds LLP
A scan type display device has a device body carrying a light emitting cell array, in which a plurality of light emitting cell arrays are aligned on a line, for scanning aerial plane to display a desired image by residual image effect. The light emitting cells are selectively illuminated according to an image data stored in a memory in synchronism with motion of the device body. The display device also has at least one light receiving element provided on the device body in a positional relationship with the light emitting cell array in such a manner that, when an image carrying medium containing an image to be sampled is placed in close proximity to the light emitting cell array in opposition and the light emitting cells in the light emitting cell array are selectively illuminated, a reflected light from the image carrying medium is received by the light receiving element for sampling the image on the image carrying medium. When an image carrying medium is placed in close proximity to the light emitting cell array in opposition, each individual light emitting cell is illuminated in order for locally irradiating light on the image carrying medium for reading output the light receiving element for sampling image data of a linear image fraction, and by relatively shifting the image carrying medium and the light emitting array for repeating sampling of image data for other linear image fraction to establish an image data of the two-dimensional image. |
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DETAILED DESCRIPTION Therefore, it is an object of the present invention to provide a scan type display device which has a function for scanning or reading an image on an original and storing the scanned or read image in the memory.
Another object of the present invention is to provide a scan type display device, in which an image scanning or reading function can be realized at low cost by utilizing a basic function of the scan type display device.
According to one aspect of the invention, a scan type display device having a device body carrying a light emitting cell array, in which a plurality of light emitting cells are aligned on a line, for scanning aerial plane to display a desired image by residual image effect, the light emitting cells being selectively illuminated according to an image data stored in a memory in synchronism with motion of the device body, comprises: at least one light receiving element provided on the device body, the light receiving element being arranged in a positional relationship with the light emitting cell array in such a manner that, when an image carrying medium containing an image to be sampled is placed in close proximity to the light emitting cell array in opposition and the light emitting cells in the light emitting cell array are selectively illuminated, a reflected light from the image carrying medium is received by the light receiving element for sampling the image on the image carrying medium, and that, when an image carrying medium is placed in close proximity to the light emitting cell array in opposition, each individual light emitting cell being illuminated in order for locally irradiating light on the image carrying medium for reading output of the light receiving element for sampling image data of a linear image fraction, and by relatively shifting the image carrying medium and the light emitting array for repeating sampling of image data for other linear image fraction to establish an image data of the two-dimensional image.
The light receiving element may be placed at one end of the light emitting cell array, and have a field of vision covering the area in front of the light emitting cell array
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Ring Tones 
