Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Experiments & Modifications



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 07-01-2010, 12:14 AM #17
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18095
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,437
Rep Power: 18095
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: What is "Harvest-Worthy" from a point-and-shoot camera?

Quote:
Originally Posted by psi seeker 34 View Post
I had a Leyden jar capacitor which according to the internets should have had less than a 2pf capacitance. I was bitten by it when it had been charged to about 2KV. Unfortunately this was the first and last time I touched both ends with both hands......... it was like being hit in the chest with a baseball bat.
I suppose you underestimated the capacity (or voltage) then.. 2pf @ 2kV is not that much energy.

To give some concept of magnitude: paddles used for cardiac restart work with something in the order of 200 joules or more. At 2kv you would be looking in the order of 50 uF for that.

Really dangrous starts at about 10 joules of stored energy, which is not beyond the reach of camera flashes at all. Most compacts don't have that much power, but a proper shoe-mounted external flash unit could easily hold enough energy to pose a serious danger if you were stupid enough to touch both ends of it with different hands.


Benm is online now   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 07-01-2010, 01:12 AM #18
Tagg's Avatar
Junior Member
 
Join Date: Jun 2010
Location: Allen, TX
Posts: 21
Rep Power: 0
Tagg is on a distinguished road
Tagg Tagg is offline
Junior Member
Tagg's Avatar
 
Join Date: Jun 2010
Location: Allen, TX
Posts: 21
Rep Power: 0
Tagg is on a distinguished road
Default Re: What is "Harvest-Worthy" from a point-and-shoot camera?

It's amazing how much can be stored in such little space.

I tried to test what each lens does with a pen laser pointer, but it was too weak. (probably a dead diode) I'll try them out when I finish my laser.

Thank you for all of your input and advice.

-Zachary
__________________
Lasers - Built to last not built to blast
Tagg is offline   Reply With Quote
Old 07-01-2010, 04:11 AM #19
Class 1M Laser
 
Join Date: Jun 2010
Posts: 164
Rep Power: 8
psi seeker 34 is on a distinguished road
psi seeker 34 psi seeker 34 is offline
Class 1M Laser
 
Join Date: Jun 2010
Posts: 164
Rep Power: 8
psi seeker 34 is on a distinguished road
Default Re: What is "Harvest-Worthy" from a point-and-shoot camera?

In reply to benm's post:
Just because it isn't lethal doesn't mean it doesn't hurt a lot.

Btw I have no way to measure the capacitance so I honestly don't know what the exact measurement is. I do however know that my volt meter,bridge rectifier,and capacitor broke when the voltage reached 2KV fortunately I had more of each to work with.I also failed to mention that the ballast happened to be on and connected at the time
psi seeker 34 is offline   Reply With Quote
Old 07-05-2010, 02:47 AM #20
Seoul_lasers's Avatar
Class 3R Laser
 
Join Date: Jul 2008
Location: Victoria, British Columbia
Posts: 2,313
Rep Power: 5175
Seoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond repute
Send a message via Skype™ to Seoul_lasers
Seoul_lasers Seoul_lasers is online now
Class 3R Laser
Seoul_lasers's Avatar
 
Join Date: Jul 2008
Location: Victoria, British Columbia
Posts: 2,313
Rep Power: 5175
Seoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond reputeSeoul_lasers has a reputation beyond repute
Send a message via Skype™ to Seoul_lasers
Exclamation Re: What is "Harvest-Worthy" from a point-and-shoot camera?

Quote:
Originally Posted by psi seeker 34 View Post
In reply to benm's post:
Just because it isn't lethal doesn't mean it doesn't hurt a lot.

Btw I have no way to measure the capacitance so I honestly don't know what the exact measurement is. I do however know that my volt meter,bridge rectifier,and capacitor broke when the voltage reached 2KV fortunately I had more of each to work with.I also failed to mention that the ballast happened to be on and connected at the time
I will have to say this to you. A Camera flash is EXTREMELY DANGEROUS to play with!
Disposable flashes and small internal ones can give you a lethal shock, though rare.
Large external flashes can and have killed people when repairing them.
Large industrial flashes are able to blow fingers off and break bones. They kill instantly.
An old photographer around where I used to live lost 2 of his fingers due to a vaporized screwdriver. He made contact with the cap bank and the driver exploded. The resulting flash was hot enough to burn off 2 fingers to the bone.
__________________
650nm ~350mW DVD 20x diode RyanSoh3 Class IIIb
650nm ~350mW DVD 22x 3.5mm labby build 2010 Class IIIb
532nm 10mW-15mW DPSS Module IR filtered(S.Korea)RyanSoh3 Class IIIb
450nm CarbonFiber ElectricPlasma build 9mm +6W Class IV
445nm 3.49W pk ~3.15W av. Sinner Cypreus II +DTR 9mm 445nm Class IV
445nm RHD Saber Twins 2.7W ~2.35W pk Class IV
445nm A140 module x2 Maxsink Class IV
405nm Daguin Kryton Groove SO6J 700mW build. Class IV
405nm Olike 560mW-600mW pen sold Scopeguy20
Class IV
337.1nm TEA Nitrogen laser project 2011 Class IIIb
---------------------------------------------------
Die4Drivers 1.3v lab laser/projector driver

Laserbee 3.2W Deluxe LPM
ARGMeter 1.1v
Ophir 20C-A sensor

Peregrine 1.5.0 is working now on MacOSX Yay!!
Seoul_lasers is online now   Reply With Quote
Old 07-05-2010, 03:07 AM #21
hakzaw1's Avatar
Class 4 Laser
 
Join Date: Apr 2009
Location: 'Deep in the Heart Of Texas..."
Posts: 8,336
Rep Power: 25210
hakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond repute
hakzaw1 hakzaw1 is online now
Class 4 Laser
hakzaw1's Avatar
 
Join Date: Apr 2009
Location: 'Deep in the Heart Of Texas..."
Posts: 8,336
Rep Power: 25210
hakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond reputehakzaw1 has a reputation beyond repute
Default Re: What is "Harvest-Worthy" from a point-and-shoot camera?

If you seperate the layers in the screen there is one layer that can be used as a line diffraction grating of sorts. the cap, battery, and flash assembly can be made into a touch taser.

Nice thin FS mirror (keystone shaped) inside cheapy poliroid one-step and similar cameras.

nice 3v dc motors inside auto advance and auto re-wind 35mm cameras as well as flash.
the older poliroid cameras have a rangefinder on top that MIGHT be used to combine lasers by replacing parts inside with dichros or BSC and drilling a hole in one end.

next time you go into a drugstore that does film-ask if they have any one-time use cameras you can have free after the film is removed-- there is a new AA battery inside every one. And a flash.

Watch out for those caps--ouch !!!

have fun ----recycle your leftovers... plz
__________________
IF YOU ARE NEW HERE- READ ALL THIS http://laserpointerforums.com/f37/an...ml#post1353314
& Spend some hours reading at LASERPOINTERSAFETY.COM

powered by PANGOLIN-ILDA Member since 2014.

QS/FB3 +Beyond-APC40-Mamba Black(clone) 5paghettix2 and I-show x2-Kasio synth-midi
KGB- 532 1.1W 445 2.2W 655 1.3W DT Pro 40 still needs more red.
KGB1W+ 532 DT Pro 40 soon to be GB.
Laserking 1300RGB FULL COLOR 30K(may be FS)
Laserking RGB LK PD2 500 and LK SD 850
REKE RGB 500- G 300
HeNes-(12)R(3)G-COH-594/5 mW-thnx DrSam
MULTILINE-147mW[
445nm 180mW-Mini spiro-Yob.
LPMs-RadiantAlpha& Pro5W-AixiZ SPER/KenmeterLite/LB1
Spacelas 1178mW 655nm/AixiZ 300mW532&
2 B&W 473nm 5/6mW lab
JETLRS1.3W&1.2W-MGL-H
638 180mW ttl mimi lab (av. 230mW)
405 100mW ttl mini lab
445 300 mW ttl mni lab ^AixiZ^ all for a lumia PJ
*MightyMite 2000* RGB all diode 2.2W 30K- 637/520./450...NEW!!
Guide DIY Pjs by Dan-
http://nqlasers.com/scannerreference/index.php?title=Main_Page
hakzaw1 is online now   Reply With Quote
Old 07-05-2010, 03:13 AM #22
Trevor's Avatar
Class 3B Laser
 
Join Date: Jul 2009
Location: Boulder, CO
Posts: 4,506
Rep Power: 2565
Trevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond repute
Trevor Trevor is offline
Class 3B Laser
Trevor's Avatar
 
Join Date: Jul 2009
Location: Boulder, CO
Posts: 4,506
Rep Power: 2565
Trevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond repute
Default Re: What is "Harvest-Worthy" from a point-and-shoot camera?

Quote:
Originally Posted by Seoul_lasers View Post
I will have to say this to you. A Camera flash is EXTREMELY DANGEROUS to play with!
Disposable flashes and small internal ones can give you a lethal shock, though rare.
Large external flashes can and have killed people when repairing them.
Large industrial flashes are able to blow fingers off and break bones. They kill instantly.
An old photographer around where I used to live lost 2 of his fingers due to a vaporized screwdriver. He made contact with the cap bank and the driver exploded. The resulting flash was hot enough to burn off 2 fingers to the bone.
I seem to remember reading that 12J across the heart is the lethal figure.

The energy stored in a capacitor can be calculated with the formula (C*V^2)/2. The capacitor you have there is probably 100uF, so you've got something like 5.5J there. You definitely don't want to grab a terminal in each hand. I extracted a lot of these caps from disposable cameras and got bit by a fair few of them, and it is not pleasant.

I haven't even dared to charge my 450V 3300uF or 68V 0.27F capacitors yet.

-Trevor
__________________
Code:
23:10 <ARG>    nothing has blown up yet :)
23:10 <Trevor> that is a distressingly low standard for success
Trevor is offline   Reply With Quote
Old 07-05-2010, 04:21 AM #23
mrbubl3s's Avatar
Class 1M Laser
 
Join Date: May 2010
Location: Wisconsin, USA
Posts: 143
Rep Power: 0
mrbubl3s is infamous around these partsmrbubl3s is infamous around these partsmrbubl3s is infamous around these parts
Send a message via MSN to mrbubl3s
mrbubl3s mrbubl3s is offline
Class 1M Laser
mrbubl3s's Avatar
 
Join Date: May 2010
Location: Wisconsin, USA
Posts: 143
Rep Power: 0
mrbubl3s is infamous around these partsmrbubl3s is infamous around these partsmrbubl3s is infamous around these parts
Send a message via MSN to mrbubl3s
Default Re: What is "Harvest-Worthy" from a point-and-shoot camera?

The thing with lines over the flash makes lines when you shine a laser at it.
__________________
>>Help kenom!<<

Lasers:
300mW 405nm "YAY ITS LASED! Hmm... Whats burning? NOOOOOO!" (broken)
100mW 532nm GadgetTown.com Burnt after about 30 minutes.
30mW 532nm GadgetTown.com
5mW 650nm dealextreme.com
5mW 635nm
80mW 780nm Success!
Coming eventually: 1W 445nm

Torches:
UniqueFire S10 CREE R2-WC
mrbubl3s is offline   Reply With Quote
Old 07-08-2010, 02:50 AM #24
Class 2M Laser
 
Join Date: May 2009
Posts: 955
Rep Power: 1542
LSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond repute
LSRFAQ LSRFAQ is offline
Class 2M Laser
 
Join Date: May 2009
Posts: 955
Rep Power: 1542
LSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond repute
Default Re: What is "Harvest-Worthy" from a point-and-shoot camera?

The tiny litte "interesting thing" is a biphase stepper motor. I can tell from the 4 solder joints = 2 coils.

The pyramid shape is a prism that will deviate a beam exactly 90'

The blue square is BQ38 glass, it adsorbs IR.

Steve
LSRFAQ is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 12:31 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC