Collimator lens and light source device
AssigneeCanon Kabushiki Kaisha
InventorsKunihiro Niwa, Junya Azami
Life of this patent
Estimating the term…
Abstract
A collimator lens to be held by a holder member, includes a lens portion including an area through which light passes, and a protruding portion protruding from the lens portion. The lens portion is formed on an outer peripheral surface of the collimator lens and includes a bonded portion to be bonded and fixed onto a bonding portion, which is formed on the holder member, through an adhesive. The protruding portion includes a plane formed on an outer peripheral surface of the protruding portion. The plane is formed at a position where a normal line to the plane intersects with the bonded portion.
Claims16
A collimator lens to be held by a holder member, the collimator lens comprising:
- a lens portion including an area through which light passes;
- a bonded portion to be bonded and fixed onto a bonding portion of the holder member through an adhesive, the bonded portion being formed on an outer peripheral surface of the lens, which is different from a light incident surface and a light emitting surface of the lens portion;
- and
- a protruding portion protruding from the outer peripheral surface of the lens of the lens portion in a direction perpendicular to an optical axis direction of the lens portion,
- wherein, as seen in the optical axis direction, the protruding portion includes a plane formed on an outer peripheral surface of the protruding portion,
- wherein as seen in the optical axis direction, at least a part of the bonded portion is located in an area between a first straight line and a second straight line, and
- wherein as seen in the optical axis direction, the first straight line passes through a first end portion of the plane and the second straight line passes through a second end portion of the plane on the opposite side of the first end portion of the plane.
Dependencies are inferred from the claim text.