A comparison of fits and clearances for Cassegrain shutter models current under study, using beam en...
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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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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


Tma 65
TMA-65 models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces

Robin Lafever 27 May 2004


Tma 65 cassegrain focus
TMA-65 Cassegrain Focus models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces

Robin Lafever 27 May 2004


Detailed beam envelope
Detailed Beam Envelope models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces

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


Spherical mask shutter assembly closed
Spherical Mask Shutter assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Closed

‘Stovepipe’ Baffle Assembly

Robin Lafever 27 May 2004


Spherical mask shutter assembly open
Spherical Mask Shutter assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Open

‘Stovepipe’ Baffle Assembly

Open shutters interfere with beam envelope

Robin Lafever 27 May 2004


Spherical mask shutter assembly closed1
Spherical Mask Shutter assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Closed

Robin Lafever 27 May 2004


Modified spherical mask shutter assembly closed
Modified spherical Mask Shutter Assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Closed

Shutter blades and motors

Moved up near knife blade

Robin Lafever 27 May 2004


Spherical mask shutter assembly open1
Spherical Mask Shutter assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Open

Robin Lafever 27 May 2004


Modified spherical mask shutter assembly open
Modified spherical Mask Shutter Assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Open

‘Stovepipe’ Baffle Assembly

Robin Lafever 27 May 2004


Modified spherical mask shutter assembly open1
Modified spherical Mask Shutter Assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Open

Open shutters clear

the beam envelope

Robin Lafever 27 May 2004


Modified spherical mask shutter assembly closed1
Modified spherical Mask Shutter Assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Closed

Robin Lafever 27 May 2004


Modified spherical mask shutter assembly open2
Modified spherical Mask Shutter Assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Open

Robin Lafever 27 May 2004


Flat mask shutter assembly open
Flat Mask shutter Assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Open

‘Stovepipe’ Baffle Assembly

Robin Lafever 27 May 2004


Flat mask shutter assembly closed
Flat Mask shutter Assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Closed

‘Stovepipe’ Baffle Assembly

Robin Lafever 27 May 2004


Flat mask shutter assembly open1
Flat Mask shutter Assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Open

Innermost corners of the mask knife edges

Are at the Cass focus.

Robin Lafever 27 May 2004


Flat mask shutter assembly closed1
Flat Mask shutter Assembly models current under study, using beam envelopes for ‘Scientifically useable’ light developed from Mike Lampton’s TMA-65 Ray Traces Closed

Robin Lafever 27 May 2004


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