US 12,265,314 B2
Waterproof camera system and waterproof casing
Takashi Yoshida, Kanagawa (JP); Hidetoshi Kei, Tokyo (JP); and Masayoshi Shibata, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Feb. 10, 2023, as Appl. No. 18/167,118.
Claims priority of application No. 2022-023861 (JP), filed on Feb. 18, 2022.
Prior Publication US 2023/0266642 A1, Aug. 24, 2023
Int. Cl. G03B 17/08 (2021.01); H04N 23/66 (2023.01); B63B 22/00 (2006.01)
CPC G03B 17/08 (2013.01) [H04N 23/66 (2023.01); B63B 22/00 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A waterproof camera system comprising:
an image pickup apparatus comprising:
a first housing that includes a lens unit; and
a second housing that holds the first housing; and
a waterproof casing that hermetically stores the image pickup apparatus, the waterproof casing comprising:
a first section that surrounds a circumference of the first housing; and
a second section that surrounds a circumference of the second housing,
wherein the waterproof casing has buoyancy that, in a state where the waterproof casing stores the image pickup apparatus, floats the waterproof camera system on a water surface in both a first posture in which the first section of the waterproof casing is in an underwater side and a second posture in which the first section is in an overwater side,
wherein the waterproof casing has a shape of an approximately rotating body having a center axis,
wherein the first housing is held by the second housing rotatably around a pan drive rotation axis that is located on an approximately same straight line as the center axis,
wherein the lens unit is held by the first housing rotatably around a tilt drive rotation axis that intersects perpendicularly with the pan drive rotation axis,
wherein the second section comprises
a first inclination part extending from a boundary between the first section and the second section toward an outermost part of the second section while gradually separating from an outer circumference of the second housing of the image pickup apparatus, and
a second inclination part extending from the outermost part while gradually approaching to the second housing of the image pickup apparatus, and
wherein the first inclination part has a shape that does not enter into an image-pickup field angle of the image pickup apparatus when the lens unit is rotated around the tilt drive rotation axis to a rotation maximum toward the second section.