Camera lens flexure collar
Disclosed herein are apparatus and system aspects for a camera lens flexure collar. An aspect includes an interior wall with one or more inner protrusions, an exterior wall with one or more openings, a cam located between the interior wall and the exterior wall, an actuator arm coupled to the cam and extending through the one or more openings of the exterior wall, and two flexures. The aspect operates through manipulation of the actuator arm, where manipulation of the actuator arm moves the cam and causes a force through the one or more inner protrusions of the interior wall, causing the interior wall to move in the axial direction within the stress limitations of the two flexures. In this aspect, movement of the interior wall in the axial direction can focus one or more camera lenses.
1. An apparatus, comprising:
an interior wall with one or more inner protrusions, wherein the interior wall has a first end and a second end;
an exterior wall with one or more openings, wherein the exterior wall has a first end and a second end;
a cam configured to be rotated between the interior wall and the exterior wall to cause the one or more inner protrusions to displace the interior wall in an axial direction relative to the exterior wall, the axial direction being perpendicular to the rotation of the cam between the interior wall and the exterior wall;
an actuator arm, coupled to the cam and extending through the one or more openings of the exterior wall, configured to be rotated to cause the rotation of the cam between the interior wall and the exterior wall;
a first flexure, coupled to the first end of the interior wall and the first end of the exterior wall, configured to prevent the interior wall from rotating in response to the rotation of the cam between the interior wall and the exterior wall to stabilize the interior wall; and
a second flexure coupled to the second end of the interior wall and the second end of the exterior wall, configured to prevent the interior wall from rotating in response to the rotation of the cam between the interior wall and the exterior wall to stabilize the interior wall.
2. The apparatus of claim 1 , further comprising:
one or more stacking mechanisms coupled to the exterior wall, the one or more stacking mechanisms configured to attach to another apparatus.
3. The apparatus of claim 1 , further comprising:
a linear encoder coupled to the exterior wall and configured to detect position information of the interior wall through the one or more openings of the exterior wall.
4. The apparatus of claim 1 , wherein the first flexure and the second flexure comprise at least one slotted opening.
5. The apparatus of claim 1 , wherein the interior wall and the exterior wall are cylindrical.
6. The apparatus of claim 1 , wherein the actuator arm extends through one of the one or more openings in the exterior wall that allows the actuator arm to be manipulated in a direction perpendicular to the axial direction.
7. A system, comprising:
one or more camera lens groups;
a first flexure collar having at least one or more first stacking mechanisms, a first actuator arm, a first interior wall, a first exterior wall, a first flexure, and a second flexure, wherein the first flexure collar is coupled to the one or more camera lens groups by the first interior wall, wherein the first actuator arm is configured to be rotated to displace the first interior wall in an axial direction relative to the first exterior wall, wherein the first flexure and the second flexure are configured to prevent the first interior wall from rotating in response to the rotation of the first actuator arm;
a second flexure collar having at least one or more second stacking mechanisms, a second actuator arm, a second interior wall, a second exterior wall, a third flexure, and a fourth flexure, wherein the second flexure collar is coupled to the first flexure collar by the second one or more stacking mechanisms and is coupled to the one or more camera lens groups by the second interior wall, wherein the second actuator arm is configured to be rotated to displace the second interior wall in the axial direction relative to the second exterior wall, wherein the third flexure and the fourth flexure are configured to prevent the second interior wall from rotating in response to the rotation of the second actuator arm; and
a support structure coupled to the first flexure collar and the second flexure collar,
whereby manipulation of the first actuator arm or the second actuator arm displaces the first interior wall and the second interior wall, respectively, to focus the one or more camera lens groups.
8. The system of claim 7 , further comprising:
a mounting plate coupled to the support structure, the mounting plate configured to provide stability to the system.
9. The system of claim 7 , wherein the first flexure collar is coupled to a first camera lens group and the second flexure collar is coupled to a second camera lens group.
10. The system of claim 7 , wherein the first flexure collar further comprises a cam configured to be rotated between the first interior wall and the first exterior wall in response to the rotation of the first actuator arm to cause one or more inner protrusions of the first interior wall to displace the first interior wall in the axial direction relative to the first exterior wall.
11. The system of claim 10 , wherein the first flexure and the second flexure comprise at least one slotted opening.
12. The system of claim 7 , wherein the first actuator arm is manipulated by a motorized device, the motorized device comprising:
a linear encoder, configured to monitor the first interior wall through one or more openings of the first exterior wall;
a motor coupled to the first actuator arm;
a power device coupled to the motor; and
a computing device, coupled to the linear encoder and the power device, configured to:
receive position information from the linear encoder; and
provide an amount of power to the motor through the power device in order to manipulate the first actuator arm to a desired position.
13. The system of claim 7 , wherein the first flexure collar or the second flexure collar are cylindrical.
14. The system of claim 7 , wherein the first flexure collar or the second flexure collar are made of a metal or a metal alloy.
15. An apparatus, comprising:
an interior wall having a first end and a second end;
an exterior wall having a third end and a fourth end;
a cam configured to be rotated between the interior wall and the exterior wall to cause one or more inner protrusions of the interior wall to displace the interior wall in an axial direction relative to the exterior wall, the axial direction being perpendicular to the rotation of the cam between the interior wall and the exterior wall; and
a first flexure configured to prevent the interior wall from rotating in response to the rotation of the cam between the interior wall and the exterior wall to stabilize the interior wall.
16. The apparatus of claim 15 , further comprising:
one or more stacking mechanisms coupled to the exterior wall, the one or more stacking mechanisms configured to attach to another apparatus.
17. The apparatus of claim 15 , further comprising:
a linear encoder coupled to the exterior wall and configured to detect position information of the interior wall through one or more openings of the exterior wall.
18. The apparatus of claim 15 , wherein the first flexure comprises at least one slotted opening.
19. The apparatus of claim 18 , wherein a stress limitation of the first flexure is predetermined based on a number of the at least one slotted openings.
20. The apparatus of claim 15 , wherein the interior wall and the exterior wall are cylindrical.