Sextuple red build

[andy_con]

it happens with or without telescopics its just the telescopics make is 2to3 times worse.

[logsquared]

Hello guys

It looked like a swerm of bees in a beehive

I think aixiz sell empty brass barrels

Ha! The other day I was "messing" with one of my combiner projects and the spots were doing the same thing. I was thinking, WTF! Am I having a flashback or what? I was seriously scratching my head for 10min Then I figured out the beams were passing over a portable heater in the adjacent room. The rising heat was making the beams 'swarm like bees".

Seriously, though....

Anyone got a line on some affordable 8mm aspheres?

[edison]

I,m also interested in affordable apheric lenses with a FL of 8. Its should be a single asperic not a triple because of the losses.

[Solarfire]

I,m also interested in affordable apheric lenses with a FL of 8. Its should be a single asperic not a triple because of the losses.

Yeah.. I'm also in the maket for a bucket full of red lenses with an aperture output diameter of <= 3mm preferaby singlets suitable for a 9 x 0.5 lens carrier.

Where are all the Optics GB meisters?

[Zoof]

@ Edison
why not get rid of the screw-in lenses?

It is convenient for testing but when you know your lens-diode combo and found the desired diode-lens distance, why not get custom non-adjustable blocks machined and glue the lens in place? You are doing a lot of precision machining for the diode holder and mirror mounts but the M9 lens seems to keep throwing your alignment off. And since you're getting a lot of machining done anyway, getting a customized and fixed diode-lens block made for your product should be as easy as

[andy_con]

@ Edison
why not get rid of the screw-in lenses?

It is convenient for testing but when you know your lens-diode combo and found the desired diode-lens distance, why not get custom non-adjustable blocks machined and glue the lens in place? You are doing a lot of precision machining for the diode holder and mirror mounts but the M9 lens seems to keep throwing your alignment off. And since you're getting a lot of machining done anyway, getting a customized and fixed diode-lens block made for your product should be as easy as

this wont stop the plastic lens warming up and changing shape.

the only way is to use a glass lens, but then if your using a glass lens which wont change shape you might as well use a screw lens holder

[edison]

You have a point there zoof i will look into it when i improve my system.

Thanks for the thinking with me!!!!

[logsquared]

From my findings, it helps to have an adjustable collimator when using a telescope. When I was using the aixiz barrels I would have to glue the lenses in for stability. If I changed the settup around a bit I would usually have to readjust (break the glue loose) the collimation of individual diodes just a bit. This was with the aixiz glass lens. Maybe with a better lens its not an issue?

[Zoof]

this wont stop the plastic lens warming up and changing shape.

the only way is to use a glass lens, but then if your using a glass lens which wont change shape you might as well use a screw lens holder

that sounds like a very good reason to not use plastic lenses. You are the guys building these multi diode units so you probably know best and my observations are from the side line. With the diode block warming up I find it hard to imagine that the screw-in lens will not move the tiniest bit, unless glued in place.

[andy_con]

that sounds like a very good reason to not use plastic lenses. You are the guys building these multi diode units so you probably know best and my observations are from the side line. With the diode block warming up I find it hard to imagine that the screw-in lens will not move the tiniest bit, unless glued in place.

i suppose it comes down to money if we could afford £20-30 per lens then we would probably buy glass