Bayonet force booster for add-on lens
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United States of America Patent
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Jul 17, 2018
Grant Date -
Oct 20, 2016
app pub date -
Apr 15, 2015
filing date -
Apr 15, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
An add-on lens assembly supporting an add-on lens for a camera includes a locking mechanism actuatable by the user in order to increase the attachment force between the lens and the camera. The add-on lens assembly may include a rotatable lock ring having a cam pin that navigates along a surface of a cam such that when the lock ring is rotated, the cam pin causes the cam to translate axially. Axial translation of the cam may compress a spring within the assembly and increase the attachment force between the lens assembly and the camera. The increased force between the add-on lens assembly and the camera may provide additional support for large or heavy assemblies.
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