Patent ID: 8414204
Filing Date: 2013-04-09
Classification: G02B,G03B

Abstract:
1. A lens adaptor to couple a lens to a lens changeable photographing apparatus, the lens adaptor comprising: a first mount formed at one side of the lens adaptor and coupleable to a body mount of the lens changeable photographing apparatus; a second mount formed at the other side of the lens adaptor opposite the one side of the lens adaptor, to which a lens mount of a lens is coupleable; an aperture lever arranged to contact an aperture pin of the lens when the lens mount of the lens is coupled to the second mount; an aperture ring capable of moving the aperture pin of the lens via the aperture lever due to manual rotation of the aperture ring, when the lens mount of the lens is coupled to the second mount; an adaptor holder having a first opening; a first protruding portion and a second protruding portion arranged on an outer circumferential surface of the adaptor holder to be separated from each other; and an aperture plate coupled to an inner surface of the aperture ring and having a plurality of recess portions or openings formed thereon, wherein the first mount includes a second opening and is arranged at the one side of the adaptor holder so that the second opening corresponds to the first opening, and the second mount includes a third opening and is arranged at the other side of the adaptor holder so that the third opening corresponds to the first opening, and wherein at least one of the first and second protruding portions is inserted in the recess portion or opening of the aperture plate.