Sensor cover glass with infrared filter
First Claim
Patent Images
1. An assembly comprising:
- a substrate;
a plurality of photosensitive chips mounted to the substrate and arranged to provide at least one linear array of photosites on the substrate, each of the photosensitive chips being in contact with a neighboring photosensitive chip;
a sensor cover glass covering the photosensitive chips and mounted to the substrate; and
an infrared filter layer deposited on the sensor cover glass to prevent infrared light from reaching the photosensitive chips.
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Abstract
The present invention relates to a sensor cover glass for covering photosensitive chips for generating electrical signals from an original image, as would be found for example in a digital scanner, copier, facsimile machine, or other digital imaging device or system. More specifically, the present invention relates to providing a sensor cover glass with an infrared filter material for blocking infrared light from reaching the photosensitive chips. This system is particularly applicable to color input imaging devices or systems.
82 Citations
17 Claims
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1. An assembly comprising:
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a substrate;
a plurality of photosensitive chips mounted to the substrate and arranged to provide at least one linear array of photosites on the substrate, each of the photosensitive chips being in contact with a neighboring photosensitive chip;
a sensor cover glass covering the photosensitive chips and mounted to the substrate; and
an infrared filter layer deposited on the sensor cover glass to prevent infrared light from reaching the photosensitive chips. - View Dependent Claims (2, 3, 4)
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5. A digital device comprising:
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a raster input scanner scanning documents to generate digital image signals, the raster input scanner including an assembly comprising;
a substrate;
a plurality of photosensitive chips mounted to the substrate and arranged to provide at least one linear array of photosites on the substrate, each of the photosensitive chips being in contact with a neighboring photosensitive chip;
a sensor cover glass covering the photosensitive chips and mounted to the substrate; and
an infrared filter layer deposited on the sensor cover glass to prevent infrared light from reaching the photosensitive chips. - View Dependent Claims (6, 7, 8)
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9. A digital imaging system comprising:
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a raster input scanner scanning documents to generate digital image signals, the raster input scanner including an assembly comprising;
a substrate, a plurality of photosensitive chips mounted to the substrate and arranged to provide at least one linear array of photosites on the substrate, each of the photosensitive chips being in contact with a neighboring photosensitive chip, a sensor cover glass covering the photosensitive chips and mounted to the substrate, and an infrared filter layer deposited on the sensor cover glass to prevent infrared light from reaching the photosensitive chips;
a raster output scanner; and
a controller directing the raster output scanner to expose a photoconductive belt to create an electrostatic latent image based on the image signals received from the raster input scanner. - View Dependent Claims (10, 11, 12)
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13. A digital device comprising:
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a raster input scanner scanning documents to generate digital image signals, the raster input scanner including an assembly comprising;
a substrate;
a plurality of photosensitive chips mounted to the substrate and arranged to provide at least one linear array of photosites on the substrate, each of the photosensitive chips being in contact with a neighboring photosensitive chip;
a sensor cover glass covering the photosensitive chips, the sensor cover glass having bonding flanges by which the sensor cover glass is mounted to the substrate; and
an infrared filter layer deposited on the sensor cover glass to prevent infrared light from reaching the photosensitive chips. - View Dependent Claims (14, 15, 16, 17)
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Specification