OPTICAL APPARATUS AND IMAGE CAPTURING APPARATUS

摘要

The optical apparatus includes an optical system forming an optical image on a rectangular image capturing surface having long and short sides, a plastic lens, a holder holding the plastic lens, and a pressing member pressing the plastic lens to the holder. One of the plastic lens and the holder includes first and second protrusions located on mutually opposite sides across an optical axis in a first direction parallel to the short sides. Another of the plastic lens and the holder includes a first hole portion into which the first protrusion is inserted to prevent a displacement thereof in a second direction parallel to the long sides and the first direction and a second hole portion into which the second protrusion is inserted to prevent a displacement thereof in the second direction and to allow a relative displacement thereof in the first direction.

主权项

1. An optical apparatus comprising:
an optical system configured to form an optical image on a rectangular image capturing surface having long sides and short sides; a plastic lens included in the optical system; a holder holding the plastic lens; and a pressing member pressing the plastic lens to the holder in an optical axis direction of the optical system, wherein a first member that is one of the plastic lens and the holder includes a first protrusion and a second protrusion each extending in the optical axis direction and are located on mutually opposite sides across an optical axis in a first direction parallel to the short sides, and a second member that is another of the plastic lens and the holder includes (a) a first hole portion into which the first protrusion is inserted to prevent a displacement of the first protrusion in a second direction parallel to the long sides and the first direction and (b) a second hole portion into which the second protrusion is inserted to prevent a displacement of the second protrusion in the second direction and to allow a relative displacement of the second protrusion in the first direction.