Image devices
First Claim
Patent Images
1. An image device for making rays from image arrays to form an image on an image formation plane, or for making incident rays to form an image on image arrays,said image device comprising;
- plural image arrays each of which including plural image elements linearly arranged,at least one oblong base plate mounting said plural image arrays in a linear arrangement,at least one oblong lens plate mounting a plurality of single lenses in a linear arrangement, andan oblong spacer for keeping a constant distance between said base plate and said lens plate, andwherein the coefficients of thermal expansion of said base plate and of said lens plate are made virtually identical to each other.
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Abstract
In an image device wherein rays from LED arrays are guided through single lenses to form an image, LED arrays are arranged on a base plate, single lenses are arranged on a lens plate, the distance between the base plate and the lens plate is kept constant by using a spacer, and the coefficients of thermal expansion of the lens plate, base plate and spacer are made virtually identical to each other.
157 Citations
23 Claims
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1. An image device for making rays from image arrays to form an image on an image formation plane, or for making incident rays to form an image on image arrays,
said image device comprising; -
plural image arrays each of which including plural image elements linearly arranged, at least one oblong base plate mounting said plural image arrays in a linear arrangement, at least one oblong lens plate mounting a plurality of single lenses in a linear arrangement, and an oblong spacer for keeping a constant distance between said base plate and said lens plate, and wherein the coefficients of thermal expansion of said base plate and of said lens plate are made virtually identical to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An image device for making rays from light emitting element arrays form images on a photoconductor in a direction of feed thereof comprising:
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plural base plates each mounting light emitting element arrays, plural lens plates each mounting single lenses, and a spacer for holding each of said base plates and each of said lens plates, for arranging each of said base plates on a line along said feeding direction and at a constant distance from said photoconductor, and for arranging each of said lens plates on a line dividing the distance between said light emitting element arrays and the surface of said photoconductor at a certain ratio of interior division, and wherein the coefficients of thermal expansion of said base plates and lens plates are made virtually the same.
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Specification