1/2 wave plates are ready to go

[mccarrot]

Because there where some questions about what a waveplate do I have attached a picture to make it more clear.

(Please note this example is based on simply rotating the diode) better beam specs can be achieved with special designed hight adjustable quad, but is is much more difficult to design and adjust.)

[dnar]

Because there where some questions about what a waveplate do I have attached a picture to make it more clear.

(Please note this example is based on simply rotating the diode) better beam specs can be achieved with special designed hight adjustable quad, but is is much more difficult to design and adjust.)

As per the 1st diagram, that is not how I knife edged my horizontal pair! I stacked the 2 beams one above the other. The top beam passed over the mirror!

So my quad is knife edged like this:



What I did was stagger my LD's on 3 levels:

Level 1: bottom H beam (hits mirror)
Level 2: both V beams
Level 3: top H beam (pass over mirror)

This way, all beams are aligned vertically.

[mccarrot]

(Please note this example is based on simply rotating the diode) better beam specs can be achieved with special designed hight adjustable quad, but is is much more difficult to design and adjust.)

Let me quote myself for people who only look at pictures

[dnar]

Let me quote myself for people who only look at pictures

Sorry, my mistake, it's been a long day.

Feel free to remove my previous post.

[dave]

OK guys, pretty much ready to pull the trigger on these wave plates. One last thing to work out.

The plates can be supplied pre mounted to a mounting ring with a clear aperture of 10mm. What is the best size ring? 20mm or 25mm?

Obviously some will want them pre mounted, whilst others will not, eek, more things to keep track of with this GB!

[LaNeK779]

i think most popular types of kinematic mounts are 1 inch or 25mm

[logsquared]

Put me down for:

5-445nm
1-660nm

Thank You.

Any chance of getting 25mm diameter wave plates?

[loopee]

Hey Dave

I'll add a 532nm to my list as well

as other have said the 25mm size is common for optical mounts so I'd stick to that

Cheers
Troy

[dave]

Hey guys,

OK, for a 25mm ring, with the wave plate pre attached, its going to be a extra $5.. Not too bad at all..

25mm wave plates will be considerably more, and I don't think there is a need for such a big plate TBH

[logsquared]

Yeah, I guess most don't need 25mm wave plates. I would be nice to rotate the polarization of 3 or 4 diodes stacked vertically. Or, use the wave plate before the telescope in a big red combiner. Really, at $45 I can just use multiple plates.