Optical apparatus, in-vehicle system, moving apparatus, manufacturing method of optical apparatus

An optical apparatus comprising:

• a first base and a second base;
• an optical element held by at least one of the first and second bases;
• and
• an adhesive configured to adhere the first and second bases to each other,
• wherein the first base includes a first recessed portion into which the second base is inserted, and a first contact portion configured to contact with the second base,
• the second base includes a second contact portion configured to contact the first contact portion and a groove portion configured to allow a part of the adhesive to enter,
• a contact surface of the first base directly contacts a contact surface of the second base,
• at least one of the first and second bases includes a second recessed portion for storing the adhesive configured to adhere the first and second bases to each other,
• a gap is provided between the first and second bases in a direction perpendicular to a contact direction of the first and second contact portions, and
• the groove portion is provided between the second recessed portion and the gap.

A method for manufacturing an optical apparatus that includes a first base, a second base, and an optical element held on at least one of the first and second bases, the method comprising:

• an application step of applying an adhesive to the second base;
• an insertion step of inserting the second base into a first recessed portion provided in the first base;
• an adjustment step of adjusting relative positions of the first and second bases;
• and
• a curing step of curing the adhesive,
• wherein in the application step, a second recessed portion provided in the second base is applied the adhesive,
• wherein in the insertion step, the second base is inserted into the first recessed portion of the first base to provide a gap for adjusting the relative positions in a direction perpendicular to a contact direction of a first contact portion, contacted to the second base, of the first base and a second contact portion contacted to the first contact portion, of the first base, with a contact surface of the first base directly contacting a contact surface of the second base, and
• wherein in the adjustment step, part of the adhesive can enter a groove portion provided between the second recessed portion and the gap during adjusting the relative positions in the direction perpendicular to the contact direction and a direction around the contact direction.