Lens unit, led head, exposure device, and image formation apparatus
AssigneeOki Data Corporation
InventorAkihiro YAMAMURA
Life of this patent
Estimating the term…
Abstract
A lens unit according to one or more embodiments includes a lens plate member including a plurality of lenses arranged in a first direction; and a light block member provided facing the lens plate member and including a plurality of opening portions arranged in the first direction, the opening portions being provided in one-to-one correspondence with the lenses. A first positioning portion is formed at a first position in first direction of each of the lens plate member and the light block member. The first positioning portion of the lens plate member and the first positioning portion of the light block member align with each other and continuously extend in a second direction along an optical axis direction of the lenses.
Claims12
A lens unit comprising
- a lens plate member including a plurality of lenses arranged in a first direction;
- and
- a light block member provided facing the lens plate member and including a plurality of opening portions arranged in the first direction, the opening portions being provided in one-to-one correspondence with the lenses, wherein
- a first positioning portion is formed at a first position in first direction of each of the lens plate member and the light block member, and
- the first positioning portion of the lens plate member and the first positioning portion of the light block member align with each other and continuously extends in a second direction along an optical axis direction of the lenses.
A lens unit comprising:
- a lens plate member including a plurality of lenses arranged in a first direction;
- and
- a light block member provided facing the lens plate member and including a plurality of opening portions arranged in the first direction, the opening portions being provided in one-to-one correspondence with the lenses, wherein
- the lens plate member includes a plurality of third positioning portions arranged in the first direction and formed at the same distance in a second direction along an optical axis direction of the lenses.
Dependencies are inferred from the claim text.