1460930431-fa06694e-71af-41dd-ae87-5d207d2f4993

1. A solar energy collection system, comprising:
a plurality of solar modules; and
a solar system cleaning apparatus coupled with the plurality of solar modules, the solar system cleaning apparatus, comprising:
a track-based vehicle, wherein the track-based vehicle is configured to straddle the plurality of solar modules, comprising a first basin mounted on the track-based vehicle, the first basin to supply a cleaning medium to one or more of the plurality of solar modules without the track-based vehicle physically contacting the solar module and wherein the first basin is configured to supply the cleaning medium to more than one side of each of the plurality of solar modules at the same time, a second basin mounted on the track-based vehicle, the second basin to collect the cleaning medium from the one or more solar modules without the track-based vehicle physically contacting the solar module, and a filter coupled to the first basin and the second basin, the filter to transfer the cleaning medium from the second basin to the first basin; and
a track system to provide access of the track-based vehicle to each of the plurality of solar modules.
2. The solar energy collection system of claim 1, wherein the second basin is configured to collect the cleaning medium from the one or more of the plurality of solar modules by a technique selected from the group consisting of gravity collection and vacuum collection.
3. The solar energy collection system of claim 1, wherein the solar system cleaning apparatus is configured to reuse the cleaning medium by supplying the cleaning medium to the same or another one or more of the plurality of solar modules subsequent to transferring the cleaning medium from the second basin to the first basin.
4. The solar energy collection system of claim 1, wherein each of the plurality of solar modules is a concentrator-cell photo-voltaic module.
5. A solar system cleaning apparatus, comprising:
a vehicle, wherein the vehicle is configured to straddle a solar module;
a first basin mounted on the vehicle, the first basin to supply a cleaning medium to the solar module without the vehicle physically contacting the solar module, and wherein the first basin is configured to supply the cleaning medium to more than one side of the solar module at the same time;
a second basin mounted on the vehicle, the second basin to collect the cleaning medium from the solar module without the vehicle physically contacting the solar module; and
a filter coupled to the first basin and the second basin, the filter to transfer the cleaning medium from the second basin to the first basin.
6. The solar system cleaning apparatus of claim 5, wherein the second basin is configured to collect the cleaning medium from the solar module by a technique selected from the group consisting of gravity collection and vacuum collection.
7. The solar system cleaning apparatus of claim 5, wherein the solar system cleaning apparatus is configured to reuse the cleaning medium by supplying the cleaning medium to the same or another solar module subsequent to transferring the cleaning medium from the second basin to the first basin.
8. The solar system cleaning apparatus of claim 5, wherein the solar module is a concentrator-cell photo-voltaic module.
9. The solar system cleaning apparatus of claim 5, wherein the vehicle is configured to ride on a rail system.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. An optical coherence tomography instrument comprising: first and second oculars for directing light to and receiving light reflected from a pair of eyes of a subject; a light source that outputs light that is directed through the first and second oculars to the subject’s eye; an interferometer configured to produce optical interference using light reflected from the subject’s eye; and an optical detector disposed so as to detect said optical interference; wherein said instrument is configured to obtain optical coherence tomography scans of eye tissue, and said instrument comprises at least one of: (i) auto-focus lenses configured to focus the instrument based on said detected optical interference; or (ii) an interpupillary distance adjustment configured to facilitate the adjustment of interpupillary distance by the subject while the subject looks through said first and second oculars and a Z positioning module configured to automatically and independently adjust the Z offset of each ocular, thereby adjusting a depth at which each scan is obtained.
2. The optical coherence tomography instrument of claim 1, further comprising first and second optical paths from said first and second oculars to said interferometer and an optical modulator configured to switch between said first and second optical paths.
3. The optical coherence tomography instrument of claim 2, further comprising at least one beamsplitter disposed in said optical paths to couple light from said light source into said first and second optical paths.
4. The optical coherence tomography instrument of claim 1, wherein said instrument comprises auto-focus lenses configured to automatically focus the instrument on eye tissue.
5. The optical coherence tomography instrument of claim 1, wherein said instrument comprises auto-focus lenses configured to assist the subject in focusing the instrument on tissue of an eye.
6. The optical coherence tomography instrument of claim 1, wherein said instrument comprises said auto-focus lenses for focusing the instrument based on said detected optical interference.
7. The optical coherence tomography instrument of claim 6, further comprising a processor configured to adjust said auto-focus lenses based on analysis of a signal based on said detected optical interference.
8. The optical coherence tomography instrument of claim 7, wherein said auto-focus lenses are configured to be translated based on said detected optical interference to provide auto-focusing.
9. The optical coherence tomography instrument of claim 1, wherein said instrument comprises said interpupillary distance adjustment configured to facilitate the adjustment of interpupillary distance by the subject while the subject looks through said first and second oculars.
10. The optical coherence tomography instrument of claim 9, further comprising a display visible to the subject through at least one of said oculars, said display configured to assist the viewer in performing said interpupillary distance adjustment.
11. The optical coherence tomography instrument of claim 1, wherein said instrument comprises said Z positioning module configured to automatically and independently adjust the Z offset of each ocular.
12. The optical coherence tomography instrument of claim 11, further comprising a reference arm associated with each ocular, wherein said Z positioning module is configured to automatically adjust the Z offset for one of said eyes by adjusting one of said reference arms of said interferometric modulator.
13. The optical coherence tomography instrument of claim 12, further comprising movable mirrors in said reference arms of said interferometer, said movable mirrors configured to translate so as to adjust said Z-offset.
14. The optical coherence tomography instrument of claim 13, further comprising electronics configured to adjust said movable mirrors based on analysis of a signal based on said detected optical interference.
15. The optical coherence tomography instrument of claim 1, further comprising electronics configured to perform an assessment of visual acuity.
16. The optical coherence tomography instrument of claim 15, further comprising an output device configured to output the said assessment of visual acuity to the user through the output device.
17. The optical coherence tomography instrument of claim 9, wherein the interpupillary distance adjustment is configured to facilitate the manual adjustment of the interpupillary distance by the subject while the subject looks through said first and second oculars.
18. The optical coherence tomography instrument of claim 9, wherein the interpupillary distance adjustment is configured to assist the subject in adjusting interpupillary distance on the basis of visual feedback received by the subject while the subject looks through said first and second oculars.
19. The optical coherence tomography instrument of claim 18, further comprising first and second displays configured to display images that are visible to the subject through the first and second oculars, said images configured to provide said visual feedback to said subject while the subject looks through the first and second oculars.
20. The optical coherence tomography instrument of claim 9, wherein the interpupillary distance adjustment comprises an adjustment control configured to be adjusted by the subject while the subject looks through said first and second oculars to adjust interpupillary distance.
21. The optical coherence tomography instrument of claim 1, wherein said instrument further comprises:
auto-focus lenses configured to focus the instrument based on said detected optical interference;
an interpupillary distance adjustment configured to facilitate the adjustment of interpupillary distance by the subject while the subject looks through said first and second oculars; and
a Z positioning module configured to automatically and independently adjust the Z offset of each ocular, thereby adjusting a depth at which each scan is obtained.