Patent ID: 8199245
Filing Date: 2012-06-12
Classification: G03B

Abstract:
1. An imaging device comprising: a device main body; a focusing screen holding member configured to detachably hold a focusing screen; and a locking member configured to be provided between the focusing screen holding member and a lens attachment part of the device main body, wherein the focusing screen holding member has a front side plate portion on a lens attachment part side, a rear side portion disposed apart from and extending parallel to the front side plate portion and a pair of lateral side portions disposed apart from and extending parallel to each other and interconnecting the front side plate portion and the rear side portion to form a rectangularly-shaped hollow defining a focusing screen placement plane, the front side plate portion extending perpendicularly relative to the focusing screen placement plane and being elastically deformable to and between a normal condition and an elastically-deformed condition, the front side plate portion being resiliently biased to the normal condition, the front side plate portion having a center plate part having a center plate part width extending perpendicularly to the focusing screen placement plane and a pair of deformation plate parts disposed apart from one another and integrally interconnected by the center plate part, each one of the deformation plate parts having a deformation plate part width extending perpendicularly to the focusing screen placement plane and being smaller than the center plate part width, the locking member engages with an engagement part provided on the front side plate portion and locks the focusing screen holding member to maintain a held state of the focusing screen by the focusing screen holding member, and if a pressing force toward a device backside is applied to the front side portion, the front side portion moves from the normal condition to the elastically-deformed condition thereby displacing the engagement part towards the device backside in order to disengage the locking member and the engagement part.