Optical processor using an original display having pixels with an aperture ratio less than that for pixels in an operation pattern display
AssigneeSharp Kabushiki Kaisha
InventorKohshi Koide
Life of this patent
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Abstract
A optical processor facilitates the alignment between an original image and transformation patterns, thus improving the operation accuracy, and, if a fixed transmission mask is to be used, facilitates the fabrication of the fixed transmission mask. The optical processor includes an original image display to display an original image and a pattern display to display the patterns for a transformation on the original image displayed on the original image display. In the optical processor, the original image display is os made as to have pixels with a smaller aperture ratio than that of the pixels of the pattern display.
Claims11
An optical processor for performing an optical operation on an original image, comprising:
- multiplying operation means for performing an optical multiplying operation to said original image, including,
- original image display means for displaying said original image with a plurality of pixels each having a first aperture ratio,
- operation pattern display means for displaying an operation pattern corresponding to said optical operation with the same number of pixels of said original image display means and for transmitting an image therethrough, each of said pixels having a second aperture ratio, and
- imaging means for imaging said original image onto said operation pattern;
- adding operation means for performing an optical adding operation to the image transmitted through said operation pattern display means, including,
- opto-electric conversion means for converting an optical signal into an electrical signal,
- condensing means for condensing said original image transmitted through said operation pattern display means onto said opto-electric conversion means;
- and
- electrical operation means for correcting said electrical signal output from said opto-electric conversion means,
- wherein said first aperture ratio is smaller than said second aperture ratio.
A method for performing an optical operation on an original image, comprising the steps of:
- performing an optical multiplying operation on said original image, including
- displaying said original image on an original image display with a plurality of pixels each having a first aperture ratio,
- displaying an operation pattern corresponding to the optical operation on an operation pattern display with the same number of pixels of the original image display, each of said pixels having a second aperture ratio, wherein said first aperture ratio is smaller than said second aperture ratio,
- transmitting the original image through the operation pattern display, and
- imaging said original image onto said operation pattern;
- and
- performing an optical adding operation to the image transmitted through said operation pattern display, including,
- converting an optical signal into an electrical signal,
- condensing said original image transmitted through said operation pattern display prior to said converting step, and
- correcting said electrical signal output by said converting step.
Dependencies are inferred from the claim text.