Integrated sensor and lens assembly with differential threads adjustment

1. An integrated image sensor and lens assembly comprising:

an image sensor substrate comprising an image sensor;

a lens mount having a first end with a base portion directly coupled to the image sensor substrate and a tube portion extending from the base portion such that the lens mount defines an open second end opposite to the first end, the tube portion having a threaded section on an interior surface thereof;

a tube adapter extending into the lens mount and including:

a lower threaded section defining a first end spaced a first axial distance from the image sensor substrate and a second end spaced a second axial distance from the image sensor substrate greater than the first axial distance; and

an upper threaded section defining a first end spaced a third axial distance from the image sensor substrate greater than the second axial distance and a second end spaced a fourth axial distance from the image sensor substrate greater than the third axial distance; and

a lens barrel including a threaded section and at least one lens for directing light to the image sensor, the lens barrel supported by the lens mount such that the at least one lens is positioned externally of the lens mount.

2. The integrated image sensor and lens assembly of claim 1 , wherein the tube portion includes a channel and extends from the base portion in a direction of an optical axis substantially perpendicular to a focal plane.

3. The integrated image sensor and lens assembly of claim 1 , wherein the lower threaded section is positioned on an exterior surface of the tube adapter.

4. The integrated image sensor and lens assembly of claim 3 , wherein the upper threaded section on the tube adapter is configured to interface with the threaded section on the lens barrel to couple the tube adapter to the lens barrel.

5. The integrated image sensor and lens assembly of claim 4 , wherein the lower threaded section on the tube adapter is configured to interface with the threaded section on the lens mount to couple the tube adapter to the lens mount.

6. The integrated image sensor and lens assembly of claim 5 , wherein the threaded section of the lens mount and the lower threaded section on the tube adapter each define an equivalent first pitch.

7. The integrated image sensor and lens assembly of claim 6 , wherein the threaded section of the lens barrel and the upper threaded section on the tube adapter each define an equivalent second pitch.

8. The integrated image sensor and lens assembly of claim 7 , wherein the second pitch is different from the first pitch.

9. The integrated image sensor and lens assembly of claim 3 , wherein the lens barrel is configured to rotate about an optical axis.

10. The integrated image sensor and lens assembly of claim 9 , wherein rotation of the tube adapter with respect to the lens barrel and the lens mount causes linear movement of the lens barrel and the lens mount with respect to the tube adapter in a same direction along the optical axis.

11. The integrated image sensor and lens assembly of claim 3 , wherein the tube adapter is configured to retain and prevent a fluid from being deposited onto the image sensor.

12. The integrated image sensor and lens assembly of claim 3 , wherein the tube adapter includes an unthreaded section positioned between the upper threaded section and the lower threaded section.

13. The integrated image sensor and lens assembly of claim 1 , wherein the lens mount and the lens barrel each include an unthreaded section positioned axially of the threaded section.

14. An imaging device comprising:

an image sensor substrate comprising an image sensor;

a first member having a first set of threads and including at least one lens;

a second member having a second set of threads, the second member directly connected to the image sensor substrate; and

a third member positioned between the first member and the second member, the third member having a third set of threads reciprocal to the first set of threads and having a fourth set of threads reciprocal to the second set of threads, the third set of threads and the fourth set of threads each defining a first end and a second end, the second ends spaced a greater axial distance from the image sensor substrate than the first ends, the third set of threads and the fourth set of threads arranged such that the first end of the third set of threads is spaced axially from the second end of the fourth set of threads in a direction extending away from the image sensor substrate and in parallel relation to an optical axis substantially perpendicular to a focal plane.

15. The imaging device of claim 14 , wherein the second set of threads is on an inner surface of the second member and the fourth set of threads is on an outer surface of the third member.

16. The imaging device of claim 14 , wherein rotation of the third member with respect to the first member and the second member causes a change in focal length.

17. The imaging device of claim 14 , wherein the third member includes an unthreaded section positioned between the third set of threads and the fourth set of threads.

18. A system comprising:

an image sensor substrate comprising an image sensor;

a lens mount directly coupled to the image sensor substrate, the lens mount having a first set of threads;

a tube adapter coupled to the lens mount, the tube adapter having a second set of threads and a third set of threads each defining a first end and a second end, the second ends spaced a greater axial distance from the image sensor substrate than the first ends, the second set of threads and the third set of threads arranged such that the first end of the third set of threads is spaced a greater axial distance from the image sensor substrate than the second end of the second set of threads, the second set of threads engageable with the first set of the threads to couple the lens mount to the tube adapter; and

a lens barrel coupled to the tube adapter, the lens barrel having a fourth set of threads reciprocal to the third set of threads to couple the lens barrel to the tube adapter.

19. The system of claim 18 , wherein the tube adapter includes an unthreaded section positioned between the second set of threads and the third set of threads.