I like the 405, it has a small emitter and keeps a tight focus, that and the color is special, powerful yet understated, I would like to converge 6,8,or 12 beams in a flat sided tube made of 40mm strips with the 405 at the far end and a galvo mirror at the user end controlled by an audrino and a rangefinder.
Are you still working on the comparison?the divergence of NDG7475 is not that bad for a multi-mode.. the dot size is close to that of the popular M140 diodes.... u just gave me a good idea. may be i'll add a video of multi-mode laser comparison a long with single mode.
You don't need a yahoo account. Just click on the links not on the photos.Nice review of this laser. I couldn't watch the video because it was on Yahoo and I haven't yet made an account there. Maybe you could post it differently so that isn't necessary.
Because you didn't read it carefully. It is not focused and it is a pink tipped match. When you focus the laser to infinity to have a parallel beam size of the dot on match gets bigger so you don't have all the power on the match.Saw it that time. I was wondering why it took so long to get the match to light on the shorter distance, and we can only see the match as it lights on the longer one? I have a 12X 405nm that is set at 700mW and it is much quicker than that. Meh, It was a good video. Thanks.
In long distance match light video it starts with showing the distance by steel tape measure.Video is 35 seconds. I am not sure why it shows shorter for you. To light a match without focusing shows how good is your divergence. I don't like these focus rings in laser pointers :beer:First of all, you are right. I didn't see the caption "lighting a match with beam unfocused" (paraphrasing). It was cut off on my view of the videos. The longer I was talking about was the short time in which the match lit in the longer distance one. It was lit one second after the video was on. I'm sorry I missed the phasing about not being focused, but why would you not focus the beam at that distance? It true that it is easier to light the match when the laser is fixed and the match is brought into the beam, but you managed to do it in the longer distance one; ie. you start the video as the match lights. I thought, at the time, they were legitimate questions, but you made fun of them. Oh well.