US 11,921,405 B2
Camera
Tomihiro Wakayama, Tokyo (JP); Yuichi Ozawa, Tokyo (JP); Yoshiki Murayama, Tokyo (JP); Takehisa Kirihara, Tokyo (JP); and Hisashi Tasaka, Tokyo (JP)
Assigned to NIDEC COPAL CORPORATION, Tokyo (JP); and FUJIFILM CORPORATION, Tokyo (JP)
Appl. No. 17/786,535
Filed by NIDEC COPAL CORPORATION, Tokyo (JP); and FUJIFILM CORPORATION, Tokyo (JP)
PCT Filed Dec. 9, 2020, PCT No. PCT/JP2020/045801
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/125003, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 2019-228954 (JP), filed on Dec. 19, 2019.
Prior Publication US 2023/0037456 A1, Feb. 9, 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 frame including a film compartment to contain a photographic film and a barrel extending from the film compartment in an optical axis direction;
a lens barrel movable in the barrel in the optical axis direction, the lens barrel including
a rear lens barrel unit accommodated radially inside the barrel and movable frontward relative to the barrel, and
a front lens barrel unit accommodated radially inside the rear lens barrel unit and movable frontward relative to the rear lens barrel unit, the front lens barrel unit accommodating at least one lens;
a rear bellows connecting the frame and the rear lens barrel unit; and
a front bellows connecting the rear lens barrel unit and the front lens barrel unit,
wherein the lens barrel has
a retracted state in which the rear lens barrel unit is accommodated radially inside the barrel and the front lens barrel unit is accommodated radially inside the rear lens barrel unit,
a first photographing state in which the rear lens barrel unit extends frontward relative to the barrel and the front lens barrel unit is accommodated radially inside the rear lens barrel unit, and
a second photographing state in which the rear lens barrel unit extends frontward relative to the barrel and the front lens barrel unit extends frontward relative to the rear lens barrel unit, and
in the first photographing state, the rear bellows is expanded and is outside a light beam projected from the at least one lens onto the photographic film, and the front bellows is at least partially contracted and is outside the light beam projected from the at least one lens onto the photographic film.