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Collimator middle section parts |
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Collimator middle section with baffle stack installed |
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Collimator aft assembly in vacuum bell jar |
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Filter box with filter wheels on workbench. Note installation of all four stepper motors |
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ARC electronics with bare MUX (red box, with front lens) on workbench |
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Collimator middle section, with drawing |
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Collimator middle section, viewed through thick LiF lens. Note square baffles interior. |
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Collimator forward section parts. Baffle stack, lens cells, wave washers |
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Baffle stack for collimator foreward section |
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L1 ZnS lens and lens cell components. |
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L1 lens, inverted in its cell, awaiting wave washer and C-ring installation. Note the white plastic blocks used to lift the cell off the table. This lens has such strong curvature that the lens front decends far below the lens cell extent. |
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Assembled L1 lens cell unit. Diameter ~6" |
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Same L1 assembled lens cell, viewed from back side |
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Assembled L2 BaF2 lens cell. Poor picture due to specular reflections. |
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Assembled L2 BaF2 lens cell unit |
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Alex holding completed L2 BaF2 lens cell unit |
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Detail of portion of L2 BaF2 lens in cell. This lens edge is very thin, so holding it is tricky. |
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Assembled L2 BaF2 lens in cell. Back view |