Daily Image
09-10-2018
Weave Lens Alignment Tool
| Submitter: | Menno Schuil |
| Description: | Last week the WEAVE Lens Alignment Tool production finished. It is a development for mechanical aligning each of the eight lenses of the two (Red and Blue) Weave Cameras. The tool contains five CNC milled pieces and will be assembled together with an extreme (sub-micron) accurate air bearing to one unit. The tool will be used in conjunction with the measurement machine to align the lenses inside the camera housing by adjusting a small wedge/spindle mechanism to micron level. The pictures show integrated blade springs of a thickness of 0.5mm. Small milling tools and careful milling is required to create the different springs. Milling tools of diameter 1.5mm and 15mm depth where no exception. You can imagine that milling of the section what is carried by the blade springs is impossible due to movement and vibration. A special milling fixture overcomes this problem. Several WEAVE camera lenses are in (from INAOE, Mexico and TNO, Neth.). The camera housings are ready and soon the alignment tool will be assembled and first lenses aligned. A new post will be done when the tool is in use. WEAVE is a new multi-object survey spectrograph for the William Herschel Telescope (WHT), on La Palma in the Canary Islands. WEAVE is built by several institutes at several countries. http://www.ing.iac.es/weave/index.html http://www.astron.nl/dailyimage/main.php?date=20171207 |
| Copyright: | schuil |
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