spectrometer opto-mech design (3 senior people)
integrate with thermal team - thermoelastic deformation analysis
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assume isothermal situation, see the deformations, evaluate optical performance (defocus)
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assume a temperature gradient, → tilt → optical performance shift.
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make a plot for 1C ,2C, …10C gradient, see where performance starts being out of spec
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SV: interested in doing this but not sure enough people-hours.
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IS: good goal to aim for end of Summer 2026 is “one iteration”
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Dummy model that resembles hyperspectral imager:
- lens tube with one lens (aspheric), then slit, followed by Offner relay.
how many members ? 6 junior members @ consistent 1-3 hours / week. Split into CAD ,FEA, documentation. SV will speak to them, currently thinks it’s likely we can accomplish this.
Optics: create a conceptual design, select COTS optical components, perform basic calculations
Optics: implement a model of the optical system in ZEMAX, to inform dimensions of the housing, spacing between elements, and the tolerances for the assembly.
Optics & Optomechanics: develop a conceptual mechanical design for the optomechanical housing. Outline key dimensions, adjustment mechanisms, and anticipated end-user usage (e.g., interchangeable parts, adjustment knobs).
conceptual design is complete. Detailed design next…
Optomechanics: create a SolidWorks model of the optomechanical housing.
Optics: Conduct Stray Light Analysis in ZEMAX to inform placement of baffles.
Optics & Optomechanics: review the design, discuss the adjustment mechanisms.
Optomechanics: finalize design, prepare drawings, send for fabrication.
Detailed design complete. While the components are being fabricated…
Optomechanics: conduct structural - thermal analysis on the mechanical housing.
Optics: incorporate displacements from thermal analysis into optical model and analyze performance degradation.
When the parts arrive…
Optics & Optomechanics: Assemble the device.
Optics: Align and test the spectrometer, verify performance is as expected.