Rod lens array and printer head and optical printer using the same
AssigneeCanon Kabushiki Kaisha
InventorMotomu Fukasawa
Life of this patent
Estimating the term…
Abstract
A rod lens array to be used for an optical printer, including: (a) a plurality of rod lenses arranged in an array; (b) a substance filled between the plurality of rod lenses; and (c) a pair of substrates sandwiching the plurality of rod lenses and the substance, wherein each of the substrates comprises a panel member and a layer formed on the surface of the panel member bearing the rod lenses thereon, and wherein the panel member is made of a fiber-reinforced plastic material and the layer is made of a resin, and the layer eliminates undulations formed by the fibers in the panel member.
Claims4
A rod lens array to be used for an optical printer having a resolution, said rod lens array comprising:
- a plurality of rod lenses arranged in an array having gaps separating said rod lenses;
- a substance filled in the gaps, and
- a pair of side panels sandwiching said plurality of rod lenses and said substance,
- wherein said plurality of rod lenses have a conjugate length, and
- wherein each of said side panels comprises a panel member made of a fiber-reinforced material and has a surface with a flatness S of less than 3.9 μm.
Dependencies are inferred from the claim text.