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US 10,241,318 B2Granted
Telescoping sight with interoperating dual course and fine controls for focus, and methods of assembly and operation thereof
AssigneeSightron, Inc.
InventorsKazuyoshi Takahashi, Shuji Moriai, Takayoshi Narukawa
Life of this patent
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Abstract
A telescoping sight having a sight housing, a moveable lens within the sight housing, a course focus adjustment control being operable to move the moveable lens via a spiral track, and a fine focus adjustment control, the fine focus adjustment control being interoperable with the spiral track.
Claims13
A telescoping sight, comprising:
- a sight housing;
- a moveable lens within the sight housing;
- a course focus adjustment control being operable to move the moveable lens via a spiral track;
- a cam mechanism having a feature receivable within the spiral track;
- and
- a fine focus adjustment control, the fine focus adjustment control being interoperable with the spiral track;
- wherein the feature of the cam mechanism travels in the spiral track, and wherein motion of focus lens is produced via the travel of the cam mechanism in the spiral track, wherein the fine focus adjustment control is interoperable with the spiral track via a planetary gear system.
4 more elements
A method for focusing a telescoping sight, the telescoping sight including a sight housing;
- a moveable lens within the sight housing;
- a course focus adjustment control being operable to move the moveable lens via a spiral track;
- a cam mechanism having a feature receivable within the spiral track, and a fine focus adjustment control, the fine focus adjustment control being interoperable with the spiral track via a reduced gear feature, the method comprising:
- rotating the course focus adjustment to produce rotation of the spiral track;
- rotating the spiral track to cause movement of the moveable lens via travel of the feature of the cam mechanism receivable about the spiral track;
- and
- rotating the fine focus adjustment control to cause reduced gear ratio movement of the moveable lens via travel of the feature of the cam mechanism about the spiral track, wherein the fine focus adjustment control is interoperable with the spiral track via a planetary gear system.
4 more elements
A control system for a telescoping sight, the telescoping sight having a sight housing a moveable lens within the sight housing, the control system comprising:
- a course focus adjustment control being operable to move the moveable lens via a spiral track;
- a cam mechanism having a feature receivable within the spiral track, wherein the feature of the cam mechanism travels in the spiral track;
- and
- a fine focus adjustment control, the fine focus adjustment control being interoperable with the spiral track via a reduced gear ratio mechanism, wherein the reduced gear ratio mechanism comprises a planetary gear system;
- and
- wherein motion of focus lens is produced via the travel of the cam mechanism in the spiral track.
3 more elements
Dependencies are inferred from the claim text.