Strange Things About Blu-Ray (405nm)

mbaran · Oct 30, 2008

sorry, to press it below the surface slightly like in the pics.

daguin · Oct 30, 2008

mbaran said:
sorry, to press it below the surface slightly like in the pics.

You just need a tube that has an ID (hole) large enough for the pins to fit inside and an OD that is less than 5.6mm. I use an old compressed air fitting. Somebody else on here uses the adjusting screw from a bicycle brake cable. I think Kenom ground down a tube to fit.

Peace,
dave

rocketparrotlet · Oct 31, 2008

You mentioned earlier that it was supposed to be dim. However, apparently it can light a white match at only 40mA, but I can't even get it to sting my skin! (It is unfocused, because focusing it up close would require safety goggles, which I do not have yet. I'm in on thesk8nmidget's GB.) If it can light a white match focused at 40mW, I would think that it could sting skin unfocused at 100mW. I can't even feel it.

-Mark

laserwanabe · Oct 31, 2008

Your not going to feel anything unfocused at 100mW, there just simply isn't enough energy going to one spot.

rocketparrotlet · Oct 31, 2008

Okay. Thanks. I have another question about blu-ray light: I can't see it that well. But my mom can see it seemingly all too well. I moved the dot onto the black driveway last night, about 30 or so feet away from where we were. (This is safe without goggles, right? How close up is safe outside on dull surfaces?) Anyway, it didn't really appear much brighter to me than on a tree 100 feet away, but it gave my mom an immediate headache and she said it was way too bright. Why does this happen?

-Mark

daguin · Oct 31, 2008

rocketparrotlet said:
Okay. Thanks. I have another question about blu-ray light: I can't see it that well. But my mom can see it seemingly all too well. I moved the dot onto the black driveway last night, about 30 or so feet away from where we were. (This is safe without goggles, right? How close up is safe outside on dull surfaces?) Anyway, it didn't really appear much brighter to me than on a tree 100 feet away, but it gave my mom an immediate headache and she said it was way too bright. Why does this happen?

-Mark

Different people "see" it better than others. People with glasses that are coated to block UV will be affected as well.

Peace,
dave

randomlugia · Oct 31, 2008

Weird... My mom sees green a lot better than me, or mabye she just doesn't like it.

kristopher · Nov 4, 2008

rocketparrotlet said:
You mentioned earlier that it was supposed to be dim. However, apparently it can light a white match at only 40mA, but I can't even get it to sting my skin! (It is unfocused, because focusing it up close would require safety goggles, which I do not have yet. I'm in on thesk8nmidget's GB.) If it can light a white match focused at 40mW, I would think that it could sting skin unfocused at 100mW. I can't even feel it.

-Mark

Think paper cuts. Lots of paper cuts. One is usually enough to keep your hand out of the beam for a while. Not that I'd know.

twentyeggs · Nov 13, 2008

hey if any of you know how to make a blu-ray laser please help me! ill be posting my topic as "help me make my blu-ray laser" thank you!
this site is awesome!

randomlugia · Nov 16, 2008

twentyeggs said:
hey if any of you know how to make a blu-ray laser please help me! ill be posting my topic as "help me make my blu-ray laser" thank you!
this site is awesome!

http://www.youtube.com/watch?v=DVugSGldXZ8

Ref · Dec 21, 2008

laserwanabe said:
Your not going to feel anything unfocused at 100mW, there just simply isn't enough energy going to one spot.

Assuming he's of the Caucasian variety.

My 30mW I purchased from DX will burn me if left on my skin for about 5-10 secs (unmodded, unfocused, tested with thermal meter). Found that out when it turned on while I was dozing off in bed

. I assume the 405nm would hurt even more, due to the wavelength being absorbed easier by light colors.

<--Black.

Ref · Dec 27, 2008

daguin said:
7) The eye has trouble seeing 405nm light. 405nm is "Near Ultra Violet" light. Blu-ray lasers are at the very edge of our eye's ability to see. Older people have more trouble and glasses with UV coatings filter it. Your eyes will get tired quickly when you first start using the blu-ray and the beam and dot may look "strange" to you. If you have read about IgorT's experiences you will have a better understanding.

With me, there seems to be a second dot (almost like the laser is mode hopping, but not...if you rotate the beam, the extra dot doesnt move) right above/below/beside the real one. The thing is...if you shine it on something florescent, the real dot changes color, but the fake one is still violet.

satellitedr3ams · Jan 2, 2009

;D uv nice with some reactive tiles

randomlugia · Jan 3, 2009

Ref said:
[quote author=laserwanabe link=1219161671/40#51 date=1225414056]Your not going to feel anything unfocused at 100mW, there just simply isn't enough energy going to one spot.

Assuming he's of the Caucasian variety.

My 30mW I purchased from DX will burn me if left on my skin for about 5-10 secs (unmodded, unfocused, tested with thermal meter). Found that out when it turned on while I was dozing off in bed

. I assume the 405nm would hurt even more, due to the wavelength being absorbed easier by light colors.

<--Black.[/quote]

How exactly did it turn on while you were sleeping...? ;D

Ref · Jan 3, 2009

Mischievous laser elves.

daguin · Jan 3, 2009

randomlugia said:
How exactly did it turn on while you were sleeping...? ;D

There is at least one couple on the list that uses their violet laser for foreplay.

:-[ [smiley=evil.gif]

Peace,
dave

Strange Things About Blu-Ray (405nm)

mbaran

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daguin

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rocketparrotlet

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laserwanabe

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rocketparrotlet

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daguin

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randomlugia

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kristopher

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twentyeggs

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randomlugia

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Ref

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satellitedr3ams

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randomlugia

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Ref

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