Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers
Buy Site Supporter Role (remove some ads) | LPF Donations
Links below open in new window
FrozenGate by Avery
Normal computer disk drive diode???
- Thread starter deluxe247
- Start date
maxkillz
0
- Joined
- Jul 22, 2008
- Messages
- 938
- Points
- 0
nah maybe a 12x blu-ray maybe at 450mW ;D ;D ;D
Switch
0
- Joined
- Dec 9, 2007
- Messages
- 3,327
- Points
- 0
I don't think blu-ray is gonna get to 20x. The problem is 20x bluray is very fast and would probably require powers approaching 1W.And I haven't seen 1W single mode diodes of any wavelength.And disk drive diodes must be single mode.Besides, other technologies are evolving too, like HVD that can store terabytes on one single disk.It just hasn't been perfected yet, and still needs a monster drive with 1W of green and red laser.
And in some circumstances, 4 trucks going 100km/h can do the task of a single 400km/h truck in about the same time. ;D
The CD burner laser has been built before, look on youtube.It can light a match, it is more dangerous that visible ones, and IR goggles are less common and more expensive.So, overall , it is less fun, that's why it's not everywhere.
And in some circumstances, 4 trucks going 100km/h can do the task of a single 400km/h truck in about the same time. ;D
The CD burner laser has been built before, look on youtube.It can light a match, it is more dangerous that visible ones, and IR goggles are less common and more expensive.So, overall , it is less fun, that's why it's not everywhere.
Ahhh...Thanks. I would say that pretty much answers my question ;D
My only fear is...What is going to happen when we have the technology to walk around with 20w lasers in our pocket...hehe...I'm sure by then lasers will be considered highly illegal... :-/
How many Watts would you actually need to hurt someone by pointing a laser at them for like 5 sec or so? (Not that I would ever do that hehe...Just curious )
My only fear is...What is going to happen when we have the technology to walk around with 20w lasers in our pocket...hehe...I'm sure by then lasers will be considered highly illegal... :-/
How many Watts would you actually need to hurt someone by pointing a laser at them for like 5 sec or so? (Not that I would ever do that hehe...Just curious )
Switch
0
- Joined
- Dec 9, 2007
- Messages
- 3,327
- Points
- 0
Depends on the wavelength, power , focusing, their skin tone, and how much you want to hurt them of course.To a very white person 2W of IR will probably do nothing as far as I've seen. But 400mW of 405nm will start to sting pretty soon.(and of course 10 years later....BAM! cancer :
) And as you go higher it will do more and more damage, obviously.
) And as you go higher it will do more and more damage, obviously.Now when you say 400mw would hurt, do you mean up close? A few feet?
Hehe. I think the US police are beginning to use a new non lethal weapon which basically cooks you... It sends out microwave energy which is suppose to the UNBELIEVABLY painful!
Hehe. I think the US police are beginning to use a new non lethal weapon which basically cooks you... It sends out microwave energy which is suppose to the UNBELIEVABLY painful!
You know, this is actually a very interesting thread. We really should have a sticky about all the different data storage systems using lasers, maybe even a chart or something. :-/
And the 1 truck @ 400km/hr vs the 4 trucks @ 100km/hr doesn't really equal because it would have to make twice the trips to go back and reload and deliver again... ;D ok, I'll shut up. ;D
Back to the diodes, should we...
Like Muridai said, comparing CDR vs DVR vs blu-ray is going to be very confusing for a noob (no offence) It's like comparing a truk, vs train, vs plane.... they are all types of transportation but completely different types of technology. SO, it is very possible to do this comparison, but it is quite advanced, it would be better to learn the basis of each one individually first.
But, in simple terms, the ir CDR burner no matter what the speed, pretty much sucks for our hobby. You should get a Stonetek 200mW ir LD for ~$10 if an invisible laser is what you're seeking, although they are very dangerous *Please research why ir is dangerous over other visible wavelengths*.
And I speak for myself but I know most of us LPF members here feel the same, but I appreciate all laser technology for what it is, so I really don't have a preference over 405nm Blu-ray or 650nm DVD burners or 532nm systems, for me they all have great attributes. It would be like comparing a few super hot ladies, blond, brunette, or black, I guess it's all a matter of mood for me. But comparing lasers and chicks never does good with me. ;D
Well I have a 6x that is totally freaken awesome, and a few reds that fill my need for red lasers ;D and a few greens that fill my need for green lasers!
btw, check out attached screen shot on how to quote
And the 1 truck @ 400km/hr vs the 4 trucks @ 100km/hr doesn't really equal because it would have to make twice the trips to go back and reload and deliver again... ;D ok, I'll shut up. ;D
Back to the diodes, should we...
Like Muridai said, comparing CDR vs DVR vs blu-ray is going to be very confusing for a noob (no offence) It's like comparing a truk, vs train, vs plane.... they are all types of transportation but completely different types of technology. SO, it is very possible to do this comparison, but it is quite advanced, it would be better to learn the basis of each one individually first.
But, in simple terms, the ir CDR burner no matter what the speed, pretty much sucks for our hobby. You should get a Stonetek 200mW ir LD for ~$10 if an invisible laser is what you're seeking, although they are very dangerous *Please research why ir is dangerous over other visible wavelengths*.
And I speak for myself but I know most of us LPF members here feel the same, but I appreciate all laser technology for what it is, so I really don't have a preference over 405nm Blu-ray or 650nm DVD burners or 532nm systems, for me they all have great attributes. It would be like comparing a few super hot ladies, blond, brunette, or black, I guess it's all a matter of mood for me. But comparing lasers and chicks never does good with me. ;D
Well I have a 6x that is totally freaken awesome, and a few reds that fill my need for red lasers ;D and a few greens that fill my need for green lasers!
btw, check out attached screen shot on how to quote
Attachments
No such thing as green diodes, at least in common commercial use Green lasers are DPSS, they use IR lasers that shine into crystals to change the wavelength to a green wavelength, to put it simply. That's why green lasers are more expensive to buy then red laser pointers.
Green DPSS lasers find a bit of use in research and are also common in the entertainment industry in laser scanners due to green being extremely bright, as our eyes are most sensitive to green.
Worth noting that in serious scanners the red laser is a DPSS system as well, as diode lasers can't get as powerful as DPSS lasers
Green lasers are DPSS, they use IR lasers that shine into crystals to change the wavelength to a green wavelength, to put it simply. That's why green lasers are more expensive to buy then red laser pointers. Green DPSS lasers find a bit of use in research and are also common in the entertainment industry in laser scanners due to green being extremely bright, as our eyes are most sensitive to green.
Worth noting that in serious scanners the red laser is a DPSS system as well, as diode lasers can't get as powerful as DPSS lasers