Patent ID: 9261756
Filing Date: 2016-02-16
CPC Classification: G02B,G03B

Claim Text:
1. A lock releasing device to enable the mounting and dismounting of interchangeable lenses from a camera body which comprises: a camera body, an interchangeable lens containing a notched engagement part, a mount adapter mounted on the camera body, said mount adapter containing locking claws, the interchangeable lens containing locking claws adapted to engage the locking claws of the mount adapter by rotation of the interchangeable lens relative to the mount adapter, said mount adapter containing a lock releasing device which includes a lock releasing ring coaxially positioned relative to the lens and operatively engaged with an elastically biased lock pin which is adapted to engage and disengage the notched engagement part of the interchangeable lens, whereby, by externally engaging the lock releasing ring, the elastically biased lock pin is displaced in a predetermined amount enabling the easy engagement or disengagement of the lens from the camera.