Optical device
AssigneeFujitsu Limited
InventorsMichio Miura, Ippei Sawaki
Life of this patent
Estimating the term…
Abstract
An optical device includes a plurality of lens plates spaced at specific intervals. At least one of the lens plates is provided with a lens array on at least one of its front and rear faces. The lens array is composed of a plurality of closely arranged lenses of a specific configuration. The lens array has at least one groove having a V-shaped cross-sectional configuration at a joint of adjacent lenses in at least one part of the lens array.
Claims12
An optical device comprising a plurality of lens plates spaced at specific intervals, at least one of which is provided with a lens array on at least one of its front and rear faces, the lens array being composed of a plurality of closely arranged lenses of a specific configuration,
- wherein the lens array has at least one groove having a V-shaped cross-sectional configuration at a joint of adjacent lenses in at least one part of the lens array.
An optical device comprising:
- four lens plates spaced at specific intervals;
- and
- light-shielding members disposed between the lens plates for maintaining spacings between the lens plates,
- wherein each of the lens plates has, on its front and rear faces, lens arrays of cylindrical lenses closely arranged in directions orthogonal to each other, and is provided with a groove at a joint of adjacent cylindrical lenses.
Dependencies are inferred from the claim text.