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Spherical Mask Shutter assembly

A comparison of fits and clearances for Cassegrain shutter models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces. Spherical Mask Shutter assembly. Modified spherical Mask Shutter Assembly. Flat Mask shutter Assembly.

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Spherical Mask Shutter assembly

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  1. A comparison of fits and clearances for Cassegrain shutter models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Spherical Mask Shutter assembly Modified spherical Mask Shutter Assembly Flat Mask shutter Assembly Robin Lafever 27 May 2004

  2. TMA-65 Robin Lafever 27 May 2004

  3. TMA-65 Cassegrain Focus Robin Lafever 27 May 2004

  4. Detailed Beam Envelope Detector assembly 43.16 mm pitch Spherical Mask At the Cassegrain focus Beam envelope constructed from Mike Lampton’s Ray Traces Generic Fold-Flat mirror With “scientifically useable” light footprint Tertiary mirror Robin Lafever 27 May 2004

  5. Spherical Mask Shutter assemblyClosed ‘Stovepipe’ Baffle Assembly Robin Lafever 27 May 2004

  6. Spherical Mask Shutter assemblyOpen ‘Stovepipe’ Baffle Assembly Open shutters interfere with beam envelope Robin Lafever 27 May 2004

  7. Spherical Mask Shutter assemblyClosed Robin Lafever 27 May 2004

  8. Modified spherical Mask Shutter AssemblyClosed Shutter blades and motors Moved up near knife blade Robin Lafever 27 May 2004

  9. Spherical Mask Shutter assembly Open Robin Lafever 27 May 2004

  10. Modified spherical Mask Shutter AssemblyOpen ‘Stovepipe’ Baffle Assembly Robin Lafever 27 May 2004

  11. Modified spherical Mask Shutter AssemblyOpen Open shutters clear the beam envelope Robin Lafever 27 May 2004

  12. Modified spherical Mask Shutter AssemblyClosed Robin Lafever 27 May 2004

  13. Modified spherical Mask Shutter AssemblyOpen Robin Lafever 27 May 2004

  14. Flat Mask shutter AssemblyOpen ‘Stovepipe’ Baffle Assembly Robin Lafever 27 May 2004

  15. Flat Mask shutter AssemblyClosed ‘Stovepipe’ Baffle Assembly Robin Lafever 27 May 2004

  16. Flat Mask shutter AssemblyOpen Innermost corners of the mask knife edges Are at the Cass focus. Robin Lafever 27 May 2004

  17. Flat Mask shutter AssemblyClosed Robin Lafever 27 May 2004

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