INTERCHANGEABLE CAMERA LENS

摘要

An interchangeable camera lens includes a main barrel for holding a diaphragm and optical elements, wherein the optical elements define an optical axis (A), a diaphragm rotating ring, rotatable by way of a rotational movement about the optical axis (A), for setting the diaphragm to different f-number values, and a click-stop device. The click-stop device interacts with the diaphragm rotating ring in such a way that the click-stop device is effective in an active work position and the diaphragm rotating ring is therefore rotatable in a stepped manner. The click-stop device is ineffective in an inactive work position and the diaphragm rotating ring is therefore continuously rotatable, wherein the click-stop device comprises a click-stop element seated on a pressure element. The click-stop element is pressable into click-stop grooves by the pressure of the pressure element to enable a step-wise rotation of the diaphragm rotating ring in the active work position. Means are provided for selectively activating and deactivating the click-stop device, wherein the means comprise a movement element which is arranged between the pressure element and the click-stop element and a switching element is assigned to the movement element to fix the movement element in such a detachable manner that the click-stop element is pressable into a click-stop groove by the pressure element in the active work position and not pressable into the click-stop groove by the pressure element in the passive work position.

主权项

1. An interchangeable camera lens comprising:
a plurality of optical elements defining an optical axis (A); a diaphragm defining a range of f-number values; a main barrel configured to hold said optical elements and said diaphragm; a diaphragm rotating ring configured to be rotatable about said optical axis (A) for setting said diaphragm to different ones of said f-number values via a rotational movement; a click-stop device having an active work position and an inactive work position and being configured to interact with said diaphragm rotating ring such that: i) said click-stop device is effective in said active work position and said diaphragm rotating ring is therefore rotatable in a stepped manner; ii) said click-stop device is ineffective in said inactive work position and said diaphragm rotating ring is therefore continuously rotatable; iii) wherein said click-stop device has a pressure element configured to apply pressure and a click-stop element disposed on said pressure element and said click-stop element being configured to be pressed into click-stop grooves via said pressure of said pressure element so as to enable rotation of said diaphragm rotating ring in a stepped manner in said active work position; a selection device configured to selectively activate and deactivate said click-stop device; said selection device having a movement element arranged between said pressure element and said click-stop element; and, a switch element associated with said movement element and configured to releasably fix said movement element so as to enable said click-stop element to be pressed into one of said click-stop grooves in said active work position and to prevent said click-stop element from being pressed into one of said click-stop grooves in said inactive work position.