Weather-sealing structure of a lens barrel
AssigneeHoya Corporation
InventorsMakoto Ilkawa, Takahiro Kobayashi
Life of this patent
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Abstract
A weather-sealing structure of a lens barrel includes an inner annular member and an outer annular member which are concentrically arranged to be movable relative to each other, and a water-repellent ring made of synthetic leather which is impregnated with a water repellent, one of two sides of the water-repellent ring being fixed to one of an inner peripheral surface of the outer annular member and an outer peripheral surface of the inner annular member. The other of the two sides of the water-repellent ring includes a hair-implanted surface including a large number of hairs which is in contact with the other of the inner peripheral surface of the outer annular member and the outer peripheral surface of the inner annular member to be slidable thereon.
Claims19
A weather-sealing structure of a lens barrel, comprising at least an inner annular member and an outer annular member which are concentrically arranged to be movable relative to each other, and a water-repellent ring;
- wherein said water-repellent ring comprises synthetic leather which is impregnated with a water repellent, one of two sides of said water-repellent ring being fixed to one of an inner peripheral surface of said outer annular member and an outer peripheral surface of said inner annular member, and
- wherein the other of said two sides of said water-repellent ring includes a hair-implanted surface including a large number of hairs which is in contact with the other of said inner peripheral surface of said outer annular member and said outer peripheral surface of said inner annular member to be slidable thereon.
A weather-sealing structure of a telescoping type of lens barrel, comprising at least two radially-adjacent concentric barrels, at least one of which moves relative to the other, and a water-repellent ring,
- wherein said water-repellent ring comprises synthetic leather which is impregnated with a water repellent and installed between radially-adjacent peripheral surfaces of said radially-adjacent concentric barrels, fine hairs being densely implanted into one of inner and outer peripheral surfaces of said water-repellent ring, and
- wherein the other of said inner and outer peripheral surfaces of said water-repellent ring is fixed to one of said radially-adjacent peripheral surfaces of said radially-adjacent concentric barrels so that said one of said inner and outer peripheral surfaces of said water-repellent ring, into which said fine hairs are implanted, is in sliding contact with the other of said radially-adjacent peripheral surfaces of said radially-adjacent concentric barrels.
Dependencies are inferred from the claim text.