Mechanically decoupled status lens
View Patent ↗A disk drive includes a light source configured to emit light indicative of a disk drive status. A disk drive status light guide system for a disk drive also includes a first light pipe configured and dimensioned to mechanically couple to the disk drive and configured to directly receive and guide light emitted by the light source, and a second light pipe separate from the first light pipe, the second light pipe configured to receive and guide light from the first light pipe to a status lens visible to a user.
1. An external disk drive comprising:
an external case;
a disk drive positioned within the external case, the disk drive including a light source configured to emit light indicative of a disk drive status;
a first light pipe mechanically coupled to the disk drive and positioned and configured to directly receive and guide light emitted by the light source; and
a second light pipe mechanically coupled to the external case and separated from the first light pipe, the second light pipe positioned and configured to receive and guide light from the first light pipe to a status lens visible outside the external case.
2. The external disk drive of claim 1 , wherein the disk drive includes a printed circuit board, and the first light pipe is mechanically coupled to the printed circuit board via a snap fit coupling proximate the light source.
3. The external disk drive of claim 1 , wherein the disk drive includes a printed circuit board, and the light source comprises a light emitting diode on the printed circuit board.
4. The external disk drive of claim 1 , wherein the disk drive status represents disk drive activity.
5. The external disk drive of claim 1 , wherein the first light pipe includes a first optical quality surface proximate to and facing the light source, and a second optical quality surface proximate to and facing the second light pipe.
6. The external disk drive of claim 5 , wherein the second light pipe includes a third optical quality surface proximate to and facing the second optical quality surface.
7. The external disk drive of claim 6 , wherein a light path for light emitted by the light source is defined through the first optical quality surface, the second optical quality surface and the third optical quality surface.
8. The external disk drive of claim 6 , wherein the second optical quality surface and the third optical quality surface are separated by between 0.25 and 0.75 mm.
9. The external disk drive of claim 6 , wherein the third optical quality surface has a third surface area greater than a second surface area of the second optical quality surface.
10. The external disk drive of claim 1 , wherein the first light pipe defines a first light path for light emitted by the light source, the first light path including a 90 degree bend, and the second light pipe defines a second light path for light from the first light pipe, the second light path including three 90 degree bends before the status lens.
11. The external disk drive of claim 10 , wherein the first light path and the second light path form part of a complete light path for light emitted by the light source to the status lens.
12. The external disk drive of claim 1 , wherein the first light pipe and the second light pipe comprise polycarbonate.
13. The external disk drive of claim 1 , wherein the second light pipe is formed integrally with the status lens.
14. The external disk drive of claim 1 , wherein the first light pipe is configured to move within a range of motion substantially independently from the second light pipe.
15. A disk drive status light guide system for a disk drive, the disk drive including a light source configured to emit light indicative of a disk drive status, the light guide system comprising:
a first light pipe configured and dimensioned to mechanically couple to the disk drive and configured to directly receive and guide light emitted by the light source; and
a second light pipe separate from the first light pipe, the second light pipe configured to receive and guide light from the first light pipe to a status lens visible to a user.
16. The light guide system of claim 15 , wherein the first light pipe is configured and dimensioned to mechanically couple to a printed circuit board of the disk drive via a snap fit coupling proximate the light source.
17. The light guide system of claim 15 , wherein the first light pipe includes a first optical quality surface configured and dimensioned to be brought proximate to and face the light source, and a second optical quality surface configured and dimensioned to be brought proximate to and face the second light pipe.
18. The light guide system of claim 17 , wherein the second light pipe includes a third optical quality surface configured and dimensioned to be brought proximate to and face the second optical quality surface, the third optical quality surface having a third surface area greater than a second surface area of the second optical quality surface.
19. The light guide system of claim 15 , wherein the first light pipe defines a first light path for light emitted by the light source, the first light path including a 90 degree bend, and the second light pipe defines a second light path for light from the first light pipe, the second light path including three 90 degree bends before the status lens.
20. The light guide system of claim 15 , wherein the first light pipe and the second light pipe comprise polycarbonate.
21. The light guide system of claim 15 , wherein the second light pipe is formed integrally with the status lens.
22. A method of manufacturing an external disk drive, the method comprising:
providing an external case and a disk drive, the disk drive including a light source configured to emit light indicative of a disk drive status;
providing a first light pipe and a second light pipe;
coupling the first light pipe to the disk drive such that the first light pipe is positioned to directly receive and guide light emitted by the light source;
coupling the second light pipe to the external case; and
positioning the disk drive within the external case such that the second light pipe is separated from the first light pipe and positioned to receive and guide light from the first light pipe to a status lens.
23. The method of claim 22 , wherein the disk drive includes a printed circuit board, and coupling the first light pipe to the disk drive includes coupling the first light pipe to the printed circuit board via a snap fit coupling proximate the light source.
24. The method of claim 22 , wherein the disk drive includes a printed circuit board, and the light source comprises a light emitting diode on the printed circuit board.
25. The method of claim 22 , wherein the disk drive status represents disk drive activity.
26. The method of claim 22 , wherein the first light pipe includes a first optical quality surface and a second optical quality surface, and wherein coupling the first light pipe to the disk drive includes coupling the first light pipe to the disk drive such that the first light pipe is proximate to and faces the light source, and positioning the disk drive within the external case includes positioning the disk drive such that the second optical quality surface is proximate to and faces the second light pipe.
27. The method of claim 26 , wherein the second light pipe includes a third optical quality surface, and wherein positioning the disk drive within the external case includes positioning the disk drive such that the third optical quality surface is proximate to and faces the second optical quality surface.
28. The method of claim 27 , wherein positioning the disk drive within the external case includes positioning the disk drive such that a light path for light emitted by the light source is defined through the first optical quality surface, the second optical quality surface and the third optical quality surface.
29. The method of claim 27 , wherein positioning the disk drive within the external case includes positioning the disk drive such that the second optical quality surface and the third optical quality surface are separated by between 0.25 and 0.75 mm.
30. The method of claim 27 , wherein the third optical quality surface has a third surface area greater than a second surface area of the second optical quality surface.
31. The method of claim 22 , wherein the first light pipe defines a first light path for light emitted by the light source, the first light path including a 90 degree bend, and the second light pipe defines a second light path for light from the first light pipe, the second light path including three 90 degree bends before the status lens.
32. The method of claim 31 , wherein positioning the disk drive within the external case includes positioning the disk drive such that the first light path and the second light path form part of a complete light path for light emitted by the light source to the status lens.
33. The method of claim 22 , wherein the first light pipe and the second light pipe comprise polycarbonate.
34. The method of claim 22 , wherein the second light pipe is formed integrally with the status lens.
35. The method of claim 22 , wherein positioning the disk drive within the external case includes positioning the disk drive such that the first light pipe is configured to move within a range of motion substantially independently from the second light pipe.
36. A light guide system for an electronic storage device, the electronic storage device including a light source configured to emit light indicative of a storage device status, the light guide system comprising:
a first light pipe configured and dimensioned to mechanically couple to the electronic storage device and configured to directly receive and guide light emitted by the light source; and
a second light pipe separate from the first light pipe, the second light pipe configured to receive and guide light from the first light pipe to a status lens visible to a user.