Using blue rays in scanners?

[mixedgas]

somebody go over to youtube and tell that viroy101 guy that Casey Stack and Lumalaser had production deep violet diodes in service 3 years ago, and that he is NOT worlds first by a long short.

Steve

[thesk8nmidget]

Thesk8nmidget, may we ask details about how you get this analog modulated?

i used a flexmod1 driver from drlava

[Things]

These are MarioMaster's video's, but he used RGV in his scanner, and it actually looks quite good!

http://www.youtube.com/watch?v=9QgSf6WmrtU

http://www.youtube.com/watch?v=ATLBdys3qGc

[allthatwhichis]

Some of those beams look blue to me. Depending on your software, it should be easy to "make" blue by using a little green with violet to get blue. Just don't do graphics on a material that floureces(sp?)...

[lamborgini8]

These are MarioMaster's video's, but he used RGV in his scanner, and it actually looks quite good!

http://www.youtube.com/watch?v=9QgSf6WmrtU

http://www.youtube.com/watch?v=ATLBdys3qGc

See I am torn between awesome colours like those and the health issues with using blue rays, I guess if they are uses in short amounts of time then there shouldn't be a problem but as its a scanner and will probably be kept running for hours I am not sure.

Blue ray is near UV, the sun gives out UV light and people need sun glasses to protect their eyes. Something about he two of them seams similar.

[keeperx]

See I am torn between awesome colours like those and the health issues with using blue rays, I guess if they are uses in short amounts of time then there shouldn't be a problem but as its a scanner and will probably be kept running for hours I am not sure.

Blue ray is near UV, the sun gives out UV light and people need sun glasses to protect their eyes. Something about he two of them seams similar.

health issues are just steve being paraniod...
the UV in a BR diode is no worse than black light, the sun, tanning.. nobody is saying that its great for your skin, but neither is masturbation and we all still do that....

[tocket]

Sure, the videos look very nice, but keep in mind many cameras have problems with these short wavelengths.

I have an example of my own. In this video I'm using about 100 mW of 405 nm added to my projector with the other lasers (400 mW 532 nm and 500 mW 660 nm) operating at a fairly low level. You can see the 405 very well and it also makes some nice colors at times (although the video is very poor quality). That's according to the camera.

In reality, the 405 was just barely visible and did little to the color. Instead the red, which is barely visible in the video, dominated. This is why I keep saying never trust pictures when it comes to lasers. Especially when there's 405 in the picture, because it's very common for cameras to have problems with it.

Also, I haven't managed to make a good blue from violet + green yet. It always seem so desaturated and rather unpleasant to look at. The purple from violet + deep red is wonderful though.

Hmm they looks good but do seam a little hard to see... Say if I had 200mW of green, what would I need of blue ray for it to stand out against green? Im not even sure if blue rays can even go over 200mW.

To match the brightness of 200 mW of 532 with 405 would take quite a lot. Green light is very good for brightness, with a luminous efficacy of over 600 lm/W. Violet however, is not. With a luminous efficacy of merely 3 lm/W for 405 nm light you need 38 W of it to match your 200 mW greenie.

[ImageLight]

the UV in a BR diode is no worse than black light, the sun, tanning.. nobody is saying that its great for your skin, but neither is masturbation and we all still do that....

LOL But way too much information..

[ljk]

Tocket,

Very interesting information.

Thanks

[The_Doctor]

health issues are just steve being paraniod...

I wouldn't go that far. Besides my own anxieties are just different. Main thing is there IS some kind of careful study needed, or we all just fall into the usual stances of unease or assurance with not much to found either feeling on. While I think I'm right that my general exposure to scattered light at ranges exceeding three feet while not prolonging a gaze at the spot on the wall, or even having it in peripheral vision most of the time, bodily responses to it will likely not be linear, so if I got two diodes and put their beams through a PBS and spent time hunched over it tweaking it, things might be very different. Even just poking the tip of a black Lumocolour marker in the beam focus to try the optical tweezer trick the other night gave me a headache after 15 minutes, which I consider to be a serious warning. Never ignore a headache, it usually means serious thirst, or serious exposure to some physical stress. If this light can do that at ranges closer than a foot to a strong reflection, then you need to get familiar with what ranges and exposures cause that stress, and stay outside them most times. We're ok in short infrequent and mild bursts, but not with ignoring it and pushing the limits consistently.