Specifications

3. Alignment

Thecateyereﬂectorarrangementisself-aligning,andshouldnot

requireadjustment.However,laserdiodeshaveaﬁnitelifetime,and

diode replacementmay necessitate alignmentof theinternal optics,

in particular the diode collimation and cateye lenses.

Forlongerwavelengthlasers,aninfra-redupconversioncardorCCD

cameracanbe veryhelpful. Commonlow-cost security cameras,

computerUSBcameras,andhomemovieorstillcamerasarealso

goodoptions,althoughtheyoftenhaveinfraredﬁlterswhichmay

need to be removed.

Diodesareverysensitivetoelectrostaticdischarge. Pleasemake

sureyouareelectricallygrounded,ideallywithawristgroundstrap.

If youdo not havea proper wristground strap, atleast be sureyou

arenotwearingwoolenclothing,andtouchsomethinggroundedfrom

timetotime(e.g.asolderingirontip,theearthofapowersupply,

the MOGLabs DLCcontroller).

3.1 Pre-alignment of lens tube and diode

1. Insertthelaserdiodeintothelenstube(seeFig.3.1).Ifusing

a lenstube withalignment screws,ensure thatthe V-notchin

the diode is aligned with one of the alignment screws.

2. Addtheretainingthreadedring,andtightengently,justenough

such that the diode does not move.

3. Ifusingalenstubewithalignmentadjustmentscrews,usethe

5.6mm retaining ring even for 9mm diodes.

4. Approximatelycentrethediodeusingthealignmentadjust-

ment screws and two 0.9mm hex keys.

5. Insert thecollimationlens,taking caretoensurethatthe lens