US 12,147,147 B2
Camera
Koichi Hirabayashi, Tokyo (JP)
Assigned to NIDEC COPAL CORPORATION, Tokyo (JP)
Filed by NIDEC COPAL CORPORATION, Tokyo (JP)
Filed on Oct. 20, 2022, as Appl. No. 17/969,691.
Claims priority of application No. 2021-172205 (JP), filed on Oct. 21, 2021.
Prior Publication US 2023/0129149 A1, Apr. 27, 2023
Int. Cl. G03B 17/04 (2021.01); G03B 5/00 (2021.01); G03B 17/12 (2021.01)
CPC G03B 17/045 (2013.01) [G03B 5/00 (2013.01); G03B 17/12 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A camera, comprising:
a housing having a front surface with an opening;
a frame accommodated in the housing;
a lens barrel accommodating at least one lens, the lens barrel including
a stationary cylinder including a base fastened to the frame and a cylindrical wall extending in an axial direction from the base, and
an extendable unit located radially inward from the cylindrical wall of the stationary cylinder, the extendable unit being extendable in the axial direction through the opening in the housing;
a light shield configured to block light outside the lens barrel entering an optical path between a part of the extendable unit and the frame; and
a pressure plate pressing the light shield against the frame and securing the light shield to the frame,
wherein the light shield includes
a front connector being a rectangular frame fastened to the part of the extendable unit in the lens barrel,
a rear connector being a rectangular frame located between the pressure plate and the frame, and
a bellows connecting the front connector and the rear connector in an expandable manner,
the base in the stationary cylinder has
an inner surface being rectangular and facing an outer surface of the rear connector in the light shield,
an arc surface extending outward in an arc from the inner surface along a part of the cylindrical wall, and
a contact surface in contact with a front surface of the pressure plate, and
the pressure plate includes
a pressing portion being a rectangular frame extending along the inner surface of the base in the stationary cylinder and in contact with the rear connector in the light shield, and
an extension extending outward from the pressing portion and facing the arc surface of the base in the stationary cylinder.