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Opto-mechanical concept SNAP / Spectrograph

Opto-mechanical concept SNAP / Spectrograph. Pierre-Eric BLANC LAM / CNRS. Summary. Optical scheme (visible & IR) Opto-mechanical mount Main structure of the spectrograph Implementation in the focal plane Interface with the cold plate Action plan. Optical scheme. Visible path.

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Opto-mechanical concept SNAP / Spectrograph

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  1. Opto-mechanical conceptSNAP / Spectrograph Pierre-Eric BLANC LAM / CNRS

  2. Summary • Optical scheme (visible & IR) • Opto-mechanical mount • Main structure of the spectrograph • Implementation in the focal plane • Interface with the cold plate • Action plan Pierre-Eric BLANC

  3. Optical scheme Visible path Slit mirror Pupil mirror Slicer Entrance point Prism Collimator Camera Detector Pierre-Eric BLANC

  4. Optical scheme 10 mm IR path 4° 4° Visible path Pierre-Eric BLANC

  5. Optical scheme Pupil & slit mirror Prism Slicer Collimator Detector Camera Entrance point Pierre-Eric BLANC

  6. Mechanical mount Prism support Slicer unit Entrance point Collimator Camera support Detector Pierre-Eric BLANC

  7. Mechanical mount Prism support Slicer unit Collimator Detector Camera support Entrance point Pierre-Eric BLANC

  8. Mechanical mount Collimator Slicer unit Camera support Prism support Detector Pierre-Eric BLANC

  9. Main structure Entrance point Pierre-Eric BLANC

  10. Main structure Pierre-Eric BLANC

  11. Implementation / Focal plane Back view of the cold plate Entrance point Pierre-Eric BLANC

  12. Implementation / Focal plane Pierre-Eric BLANC

  13. Interface / Cold plate Pierre-Eric BLANC

  14. Action plan In progress • Design of sub-structureSlicer unit, Camera support, collimator and dichroic sub-structure, … • Design of main structureimplementation in the available volume,… • Design of detector packagingThermal insulator, radiation shielding, electronic packaging,… • Design of interface / cold plateTrade off material, … In progress Starting In progress Pierre-Eric BLANC

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