NAOJ GW Elog Logbook 3.2
Displaying report 1-1 of 1.
MatteoLeonardi - 10:58, Tuesday 12 June 2018 (809)
Broken collimator
Few days ago we noticed that one of the two 11mm EFL collimators was behaving in a strange way. In particular the lens was not moving along X direction. I unmounted the collimator and found that the screw for X movement was broken (see picture 1 and 2).
NOTE: if you look for the collimator into the Thorlabs site the part number is PAF2P-11C. Thorlabs changed very recently the part number of this item from the one written on top of the collimator to this new one.
NOTE: if you look for the collimator into the Thorlabs site the part number is PAF2P-11C. Thorlabs changed very recently the part number of this item from the one written on top of the collimator to this new one.
Images attached to this report
Comments related to this report
A screw identical to the broken screw have been found in the collimator box. This screw is likely the lock screw for the XY position of the collimator lens.
This spare screw has been used in place the broken one and the collimator has been riassembled and it seems to work.
This spare screw has been used in place the broken one and the collimator has been riassembled and it seems to work.