Systems and methods for magnetic attachment of optical filters
An optical filter attachment assembly for a camera is provided. The optical filter attachment assembly includes an attachment assembly configured to be threadably coupled to the camera and having an attachment frame. The attachment frame includes a first set of magnets. The optical filter attachment assembly further includes at least one filter assembly. Each filter assembly includes at least one optical filter mounted in a filter frame. The filter frame includes a second set of magnets. The first set of magnets and the second set of magnets are configured to detachably couple to each other such that the at least one optical filter is retained on the camera.
1. An optical filter attachment assembly for a camera, comprising:
an attachment assembly configured to be threadably coupled to the camera and comprising an attachment frame, wherein the attachment frame comprises a first plurality of magnets; and
at least one filter assembly, each filter assembly comprising a plurality of optical filters mounted in a filter frame, wherein the filter frame comprises a second plurality of magnets;
wherein the first plurality of magnets and the second plurality of magnets are configured to detachably couple to each other at one of a plurality of discrete orientations such that the at least one optical filter is retained on the camera, and
wherein at least one of the plurality of optical filters is configured to rotate relative to the filter frame.
2. The optical filter attachment assembly of claim 1 , wherein the at least one filter assembly comprises a plurality of filter assemblies.
3. The optical filter attachment assembly of claim 1 , wherein the plurality of optical filters comprises a pair of optical filters.
4. The optical filter attachment assembly of claim 3 , wherein a first optical filter in the pair of optical filters is fixed relative to the filter frame, and wherein a second optical filter in the pair of optical filters is configured to rotate relative to the filter frame and the first optical filter.
5. The optical filter attachment assembly of claim 3 , wherein a first optical filter in the pair of optical filters is configured to rotate relative to the filter frame, and wherein a second optical filter in the pair of optical filters is configured to rotate relative to the filter frame and the first optical filter.
6. The optical filter attachment assembly of claim 1 , wherein:
the at least one optical filter configured to rotate relative to the filter frame comprises a plurality of external teeth extending around at least a portion of the perimeter of the at least one optical filter; and
the at least one filter assembly further comprises at least one spur gear configured to couple to the plurality of external teeth such that rotation of the at least one spur gear causes rotation of the at least one optical filter relative to the filter frame.
7. The optical filter attachment assembly of claim 6 , wherein the at least one optical filter is configured to rotate 360° relative to the filter frame.
8. The optical filter attachment assembly of claim 6 , wherein the at least one optical filter is configured to rotate an amount less than 360° relative to the filter frame.
9. The optical filter attachment assembly of claim 1 , wherein the at least one filter assembly further comprises a filter identification tab extending from the filter frame, the filter identification tab comprising identifying characteristics of the at least one optical fiber.
10. The optical filter attachment assembly of claim 1 , wherein a magnetic strength of the first plurality of magnets is greater than a magnetic strength of the second plurality of magnets.
11. A filter assembly used in an optical filter attachment assembly for a camera, the filter assembly comprising:
a filter frame;
a plurality of optical filters mounted in the filter frame; and
a first plurality of magnets mounted in a first pattern in the filter frame;
wherein the first plurality of magnets are configured to detachably couple at one of a plurality of discrete orientations to a second plurality of magnets mounted in an attachment assembly that is threadably coupled to the camera, and
wherein at least one of the plurality of optical filters is configured to rotate relative to the filter frame.
12. The filter assembly of claim 11 , wherein the plurality of optical filters comprises a pair of optical filters.
13. The filter assembly of claim 12 , wherein a first optical filter in the pair of optical filters is fixed relative to the filter frame, and wherein a second optical filter in the pair of optical filters is configured to rotate relative to the filter frame and the first optical filter.
14. The filter assembly of claim 12 , wherein a first optical filter in the pair of optical filters is configured to rotate relative to the filter frame, and wherein a second optical filter in the pair of optical filters is configured to rotate relative to the filter frame and the first optical filter.
15. The filter assembly of claim 11 , wherein:
the at least one optical filter configured to rotate relative to the filter frame comprises a plurality of external teeth extending around at least a portion of the perimeter of the at least one optical filter; and
the filter assembly further comprises at least one spur gear configured to couple to the plurality of external teeth such that rotation of the at least one spur gear causes rotation of the at least one optical filter relative to the filter frame.
16. The filter assembly of claim 15 , wherein the at least one optical filter is configured to rotate 360° relative to the filter frame.
17. The filter assembly of claim 15 , wherein the at least one optical filter is configured to rotate an amount less than 360° relative to the filter frame.
18. The filter assembly of claim 11 , further comprising a filter identification tab extending from the filter frame, the filter identification tab comprising identifying characteristics of the at least one optical fiber.