Spring-biased multi-axis articulating lens cover

1. A lens cover apparatus, comprising:

a mounting structure configured for securing the lens cover apparatus to a support structure;

a lens cover;

a pivot joint structure coupled between the mounting structure and the lens cover and configured for allowing multi-axis articulation of the lens cover with respect to the mounting structure, wherein the pivot joint structure allows the lens cover to independently pivot about a first pivot axis and a second pivot axis and wherein the first pivot axis is non-parallel with respect to the second pivot axis;

a spring coupled between the pivot joint structure and the lens cover, wherein the spring exerts a torsional force on the lens cover about the first pivot axis of the pivot joint structure; and

an articulation control structure integral with at least one of the lens cover and the mounting structure, wherein the articulation control structure is configured for causing the lens cover to follow a prescribed path of movement with respect to the mounting structure during at least a portion of movement from a use position thereof to a stowed position thereof, wherein a first portion of the articulation control structure is integral with the lens cover, wherein a second portion of the articulation control structure is integral with the mounting structure;

wherein the spring and the pivot joint structure are jointly configured for causing spring-biased multi-axis articulation of the lens cover between the use position thereof and the stowed position thereof in response to manual initiation of said articulation;

wherein the spring biases the lens cover toward the use position thereof when the pivot joint structure is in a first orientation; and

wherein the spring biases the lens cover toward the stowed position thereof when the pivot joint structure is in a second orientation different than the first orientation.

2. The lens cover apparatus of claim 1 wherein:

the pivot joint structure allows the lens cover to independently pivot about a first pivot axis and a second pivot axis; and

the first pivot axis is non-parallel with respect to the second pivot axis.

3. The lens cover apparatus of claim 2 wherein the spring exerts a torsional force on the lens cover about one of said pivot axes.

4. The lens cover apparatus of claim 3 wherein:

the spring biases the lens cover toward the use position thereof when the pivot joint structure is in a first orientation; and

the spring biases the lens cover toward the stowed position thereof when the pivot joint structure is in a second orientation different than the first orientation.

5. The lens cover apparatus of claim 4 wherein:

the pivot joint structure allows the lens cover to independently pivot about a first pivot axis and a second pivot axis; and

the first pivot axis is non-parallel with respect to the second pivot axis.

6. A protective lens cover apparatus configured for use with a sighting device, comprising:

a mounting structure configured for being fixedly and releaseably attached to at least one of a body of a sighting device and a support structure on which the sighting device is mountable;

a protective lens cover configured for covering at least a portion of a lens aperture extending through an external surface of the body of the sighting device when the protective lens cover is in a use position thereof with respect to the mounting structure;

a pivot joint structure coupled between the mounting structure and the protective lens cover and configured for allowing multi-axis articulation of the protective lens cover with respect to the mounting structure, wherein the pivot joint structure allows the protective lens cover to independently pivot about a first pivot axis and a second pivot axis and wherein the first pivot axis is non-parallel with respect to the second pivot axis;

a spring coupled between the pivot joint structure and the protective lens cover wherein the spring exerts a torsional force on the protective lens cover about the first pivot axis of the pivot joint structure; and

an articulation control structure integral with at least one of the protective lens cover and the mounting structure, wherein the articulation control structure is configured for causing the protective lens cover to follow a prescribed path of movement with respect to the mounting structure during at least a portion of movement from the use position thereof to the stowed position thereof, wherein a first portion of the articulation control structure is integral with the protective lens cover and wherein a second portion of the articulation control structure is integral with the mounting structure;

wherein the spring and the pivot joint structure are jointly configured for causing spring-biased multi-axis articulation of the protective lens cover between the use position thereof and a stowed position thereof in, response to manual initiation of said articulation;

wherein the spring biases the protective lens cover toward the use position thereof when the pivot joint structure is in a first orientation; and

wherein the spring biases the protective lens cover toward the stowed position thereof when the pivot joint structure is in a second orientation different than the first orientation.

7. The protective lens cover apparatus of claim 6 wherein:

the pivot joint structure allows the protective lens cover to independently pivot about a first pivot axis and a second pivot axis; and

the first pivot axis is non-parallel with respect to the second pivot axis.

8. The protective lens cover apparatus of claim 7 wherein the spring exerts a torsional force on the protective lens cover about one of said pivot axes.

9. The protective lens cover apparatus of claim 8 wherein:

the spring biases the protective lens cover toward the use position thereof when the pivot joint structure is in a first orientation; and

the spring biases the protective lens cover toward the stowed position thereof when the pivot joint structure is in a second orientation different than the first orientation.

10. A sighting device assembly, comprising:

a sighting device including a body having a lens aperture extending through an external surface thereof;

a protective lens cover apparatus including a mounting structure, a protective lens cover, a pivot joint structure coupled between the mounting structure and the protective lens cover, an articulation control structure integral with at least one of the protective lens cover and the mounting structure and a spring coupled between the pivot joint structure and the protective lens cover, wherein the mounting structure is attached to at least one of the body and a support structure on which the sighting device is mounted, wherein the pivot joint structure allows multi-axis articulation of the protective lens cover with respect to the mounting structure, wherein the spring exerts a torsional force on the protective lens cover about a pivot axis of the pivot joint structure, wherein the pivot joint structure allows the protective lens cover to independently pivot about a first pivot axis and a second pivot axis, wherein the first pivot axis is non-parallel with respect to the second pivot axis, wherein the pivot joint structure allows for manual positioning of the protective lens cover in front of the lens aperture such that the spring biases the lens cover into a use position against the body in front of the lens aperture, wherein the pivot joint structure and the spring are jointly configured for causing spring-biased multi-axis articulation of the protective lens cover to a stowed position when the lens cover is manually moved from the use position against the body to a suitably displaced position therefrom, wherein the spring biases the protective lens cover toward the use position thereof when the pivot joint structure is in a first orientation, wherein the spring biases the protective lens cover toward the stowed position thereof when the pivot joint structure is in a second orientation different than the first orientation, wherein the articulation control structure is configured for causing the protective lens cover to follow a prescribed path of movement with respect to the mounting structure during at least a portion of movement from the use position to the stowed position, wherein a first portion of the articulation control structure is integral with the protective lens cover and wherein a second portion of the articulation control structure is integral with the mounting structure.

11. The sighting device assembly of claim 10 wherein, when the protective lens cover is in the stowed position, the protective lens cover is one of flush with a side portion of said sighting device body and engaged with the side portion of said sighting device body.

12. The sighting device assembly of claim 10 wherein:

the pivot joint structure allows the protective lens cover to independently pivot about a first pivot axis and a second pivot axis; and

the first pivot axis is non-parallel with respect to the second pivot axis.

13. The sighting device assembly of claim 12 wherein the spring exerts a torsional force on the protective lens cover about one of said pivot axes.

14. The sighting device assembly of claim 13 wherein:

the spring biases the protective lens cover toward the use position thereof when the pivot joint structure is in a first orientation; and

the spring biases the protective lens cover toward the stowed position thereof when the pivot joint structure is in a second orientation different than the first orientation.

15. The sighting device assembly of claim 10 wherein, when the protective lens cover is in the stowed position, the protective lens cover is one of flush with a side portion of said sighting device body and engaged with the side portion of said sighting device body.

16. The sighting device assembly of claim 10 wherein, when the protective lens cover is in the stowed position, the protective lens cover is one of flush with a side portion of said sighting device body and engaged with the side portion of said sighting device body.

17. A lens cover apparatus, comprising:

a mounting structure configured for securing the lens cover apparatus to a support structure;

a plurality of spring-biased multi-axis articulating lens cover assemblies, each one of said lens cover assemblies including:

a lens cover;

a pivot joint structure coupled between the mounting structure and the lens cover and configured for allowing multi-axis articulation of the lens cover with respect to the mounting structure; and

a spring coupled between the pivot joint structure and the lens cover, wherein the spring and the pivot joint structure are jointly configured for causing spring-biased multi-axis articulation of the lens cover between a use position thereof and a stowed position thereof in response to manual initiation of said articulation;

wherein each one of said lens cover assemblies further includes:

an articulation control structure integral with at least one of the respective lens cover thereof and the mounting structure, wherein the articulation control structure is configured for causing the respective lens cover to follow a prescribed path of movement with respect to the mounting structure during at least a portion of movement from the respective use position to the respective stowed position.

18. The lens cover apparatus of claim 17 wherein:

a first one of said lens cover assemblies is a first type of lens cover; and

a second one of said lens cover assemblies is a second type of lens cover.

19. The lens cover apparatus of claim 18 wherein:

the first type of lens cover is a lens cover permitting the transmission of light therethough for the purpose of limiting an angle of transmission of light transmitted therethrough or filtering light transmitted therethrough; and

the second type of lens cover is a protective lens cover.

20. The lens cover apparatus of claim 18 wherein the lens cover of the first one of said lens cover assemblies at least partially overlaps the lens cover of the second one of said lens cover assemblies when said first and second lens covers are in their respective use positions.

21. The lens cover apparatus of claim 20 wherein:

said first and second lens covers are positioned on opposing sides of the mounting structure when said first and second lens covers are in their respective stowed positions.

22. The lens cover apparatus of claim 17 wherein each one of said lens cover assemblies is independently operable with respect to each other one of said lens cover assemblies.

23. The lens cover apparatus of claim 17 wherein:

the pivot joint structure of each one of said lens cover assemblies allows the respective lens cover to independently pivot about a first pivot axis and a second pivot axis; and

the first pivot axis is non-parallel with respect to the second pivot axis.

24. The lens cover apparatus of claim 23 wherein the spring of each one of said lens cover assemblies exerts a torsional force on the respective lens cover about one of said pivot axes.

25. The lens cover apparatus of claim 24 wherein:

the spring of each one of said lens cover assemblies biases the respective lens cover toward the use position thereof when the respective pivot joint structure is in a respective first orientation thereof ; and

the spring of each one of said lens cover assemblies biases the respective lens cover toward the respective stowed position thereof when the pivot joint structure is in a respective second orientation thereof different than the respective first orientation thereof.

26. The lens cover apparatus of claim 25 wherein:

a first one of said lens cover assemblies is a first type of lens cover; and

a second one of said lens cover assemblies is a second type of lens cover.

27. The lens cover apparatus of claim 26 wherein:

the first type of lens cover is a lens cover permitting the transmission of light therethough for the purpose of limiting an angle of transmission of light transmitted therethrough or filtering light transmitted therethrough; and

the second type of lens cover is a protective lens cover.

28. The lens cover apparatus of claim 27 wherein the lens cover of the first one of said lens cover assemblies at least partially overlaps the lens cover of the second one of said lens cover assemblies when said first and second lens covers are in their respective use positions.

29. The lens cover apparatus of claim 28 wherein:

said first and second lens covers are positioned on opposing sides of the mounting structure when said first and second lens covers are in their respective stowed positions.