Optical scanning device, image projection device, and mobile object
AssigneeRicoh Company, Ltd.
InventorsKenichi Yoshimura, Tomohiro Nakajima
Life of this patent
Estimating the term…
Abstract
An optical scanning device includes: a light source; a scanning unit configured to deflect light from the light source in a main scanning direction to scan a scanned area with light; an optical member configured to guide light from the light source to the scanning unit; a casing holding the light source and the optical member; and an attaching part disposed between the optical member and the casing to attach a part of the optical member to the casing, wherein a direction in which the attaching part is interposed aligns with a direction corresponding to the main scanning direction of the scanning unit.
Claims15
An optical scanning device, comprising:
- a light source;
- a scanning unit configured to deflect light from the light source in a main scanning direction to scan a scanned area with the light;
- an optical member configured to guide the light from the light source to the scanning unit;
- a casing holding the light source and the optical member;
- and
- an attaching part disposed between the optical member and the casing to attach a part of the optical member to the casing, wherein
- a direction in which the attaching part is disposed is aligned with the main scanning direction of the scanning unit,
- the attaching part includes an adhesive layer that bonds the optical member to the casing, and
- the adhesive layer is asymmetrically disposed with respect to an optical axis of the optical member on both sides of the optical axis in a direction orthogonal to the main scanning direction.
An optical scanning device, comprising:
- a light source;
- a scanning unit configured to deflect light from the light source in a main scanning direction to scan a scanned area with the light;
- an optical member configured to guide the light from the light source to the scanning unit;
- a casing holding the light source and the optical member;
- and
- an attaching part disposed between the optical member and the casing to attach a part of the optical member to the casing, wherein
- a direction in which the attaching part is disposed is aligned with the main scanning direction of the scanning unit,
- the attaching part includes an intermediate holding member bonded to and in contact with the optical member in a direction orthogonal to the main scanning direction, and the intermediate holding member including an intermediate holding member fixing unit that extends to fix the optical member to the casing, and
- the intermediate holding member fixing unit is asymmetrically disposed with respect an optical axis of the optical member.
Dependencies are inferred from the claim text.