Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shingo Nakano0
Date of Patent
December 8, 2009
0Patent Application Number
119717820
Date Filed
January 9, 2008
0Patent Primary Examiner
Patent abstract
An accessory unit mountable on an eyepiece portion includes an engaging member having an engaging claw portion engageable with the eyepiece portion, an operating portion configured to manipulated by a user so that the engaging claw portion is displaced in a direction of releasing the engagement of the engaging claw portion and the eyepiece portion, and a mechanism portion configured to displace the engaging claw portion in a direction such that the engaging claw portion and the eyepiece portion are engaged with each other when a force is applied to the accessory unit mounted on the eyepiece portion in a direction opposite to the mounting without manipulating the operating portion.
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