1 / 9

Optical Position Sensor for the VWS. Some issues to take into consideration

Optical Position Sensor for the VWS. Some issues to take into consideration. Jose Luis Sirvent Supervisor: Jonathan Emery. Student Meeting 31 October 2011. 1.Continuing with the reflection. A) If a collimator is ordered it would be good to make a custom accessory.

azizi
Download Presentation

Optical Position Sensor for the VWS. Some issues to take into consideration

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Optical Position Sensor for the VWS.Some issues to take into consideration Jose Luis Sirvent Supervisor: Jonathan Emery Student Meeting 31 October 2011

  2. 1.Continuing with the reflection • A) If a collimator is ordered it would be good to make a custom accessory.

  3. 1.Continuing with the reflection • Last week simulations/calculus with Zemax showed that this approach has a high tolerance in linear distance. • Limits: 4.5 mm distance to disk, diffraction, aligment angle.

  4. 1.Continuing with the reflection • A) If a collimator is ordered it would be good to make a custom accessory. • This week I still gathering information to improve this approach

  5. 2.Issues to take into account • Spherical aberration: • I said that the focal distances in the simulations doesn’t fit the specifications. • I made a mistake, It was spherical aberration. • Typical in Plano/Convex lenses (Our theoricAccu-Glass colimator)

  6. 2.Issues to take into account • Spherical aberration: • Possible solutions: • Meeting with Aurelie (how to quantify the aberration and improve my knowledge of the program)  AchromatDouplets • Contact with Edmund Optics: No possible achromats, not vacuum compatible and temperature too high, but yes Aspheric lens. • Achromatic Lens Aspheric lens

  7. 2.Issues to take into account • Spherical aberration: • Possible solutions: • Spherical lens vsAspherical lens • Diam: 25mm • Focal Dist: 25mm • Data according to Edmund Optics (Very small spot size!) • Our spot Size limit is <100um

  8. 2.Issues to take into account • Splitters and Circulators: • It’s possible to use Splitters for our application, but they are not the optimal solution. Circulator Splitter

  9. 2.Issues to take into account • Performance comparation between splitter options and circulator.

More Related