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 09-27-2009, 12:48 AM #49
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,709
Rep Power: 40049
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,709
Rep Power: 40049
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: Transfer Data with Lasers?

@ MrGreenJeans....

Thanks for the interesting targeting info you provided...

and BTW...

to the Forum...

Jerry


__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner
lasersbee is offline   Reply With Quote







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







Old 09-27-2009, 03:50 AM #50
Junior Member
 
Join Date: Sep 2009
Posts: 19
Rep Power: 0
killmore231 is on a distinguished road
killmore231 killmore231 is offline
Junior Member
 
Join Date: Sep 2009
Posts: 19
Rep Power: 0
killmore231 is on a distinguished road
Default Re: Transfer Data with Lasers?

I actually did something like this a couple years ago. Used this link as the main source of how to set it up, and I sent stuff. I'm pretty sure it wouldn't be to hard to throw something together in C++ to get this to send files.
killmore231 is offline   Reply With Quote
Old 09-27-2009, 05:25 PM #51
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,709
Rep Power: 40049
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,709
Rep Power: 40049
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: Transfer Data with Lasers?

Just a quick look at that project brings up a flag that it may
not work...
The schematic has the transistors Base controlled through
Pin #5 of the 9 pin 'D' connector and Pin #4 to ground.

The 9 Pin 'D' connector's pin #5 is GROUND...

And connecting Pin #4 of the 9 Pin 'D' to ground would
render this pin inoperative...
Have I missed something...

Jerry
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner
lasersbee is offline   Reply With Quote
Old 09-27-2009, 08:14 PM #52
Junior Member
 
Join Date: Sep 2009
Posts: 19
Rep Power: 0
killmore231 is on a distinguished road
killmore231 killmore231 is offline
Junior Member
 
Join Date: Sep 2009
Posts: 19
Rep Power: 0
killmore231 is on a distinguished road
Default Re: Transfer Data with Lasers?

Quote:
Originally Posted by lasersbee View Post
Just a quick look at that project brings up a flag that it may
not work...
The schematic has the transistors Base controlled through
Pin #5 of the 9 pin 'D' connector and Pin #4 to ground.

The 9 Pin 'D' connector's pin #5 is GROUND...

And connecting Pin #4 of the 9 Pin 'D' to ground would
render this pin inoperative...
Have I missed something...

Jerry
I think that the ground may just be to the 9v battery ground. HIs site has a couple of things that are flip floped like that tho, so I'm also thinking that it may just be a mistake on his part, and pins 4 and 5 are swapped in his schematic. Honestly, im pretty suprised now that I look back that I even got this working using his guide.
killmore231 is offline   Reply With Quote
Old 09-27-2009, 11:19 PM #53
Sk8freak315's Avatar
Member
 
Join Date: Aug 2009
Location: Michigan
Posts: 44
Rep Power: 0
Sk8freak315 is on a distinguished road
Sk8freak315 Sk8freak315 is offline
Member
Sk8freak315's Avatar
 
Join Date: Aug 2009
Location: Michigan
Posts: 44
Rep Power: 0
Sk8freak315 is on a distinguished road
Default Re: Transfer Data with Lasers?

How about a laser mic?
http://www.wonderhowto.com/how-to/vi...rophone-77427/
You could use certain sounds to send certain data/bytes. But then interference comes into place. Maybe a box with a little speaker inside which will be the thing that the laser bounces off of. Different frequencies for different bytes would come out of the speaker. Then it would be just reading frequencies when it comes back and putting them back into bytes. But still there may be alot of interference, it would have to be tested.
Problem with this is flat out, light travels faster than sound. But we are mixing the two, so I'm not sure....
__________________
[5mW 532nm - Ebay) ―――●|
[50mW 532nm - O-Like) ―――――――●| - Amazing!
[5mW 650nm - DX) ―――●|

[5mW 405nm - Ebay) ―――●|

Pictures of my lasers

Last edited by Sk8freak315; 09-28-2009 at 01:04 AM.
Sk8freak315 is offline   Reply With Quote
Old 05-18-2010, 03:42 PM #54
drlava's Avatar
Class 3R Laser
 
Join Date: Mar 2007
Posts: 1,152
Rep Power: 71
drlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond repute
Send a message via AIM to drlava
drlava drlava is offline
Class 3R Laser
drlava's Avatar
 
Join Date: Mar 2007
Posts: 1,152
Rep Power: 71
drlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond repute
Send a message via AIM to drlava
Default Re: Transfer Data with Lasers?

Hi guys, this is possible, I've been using a free space laser to transmit digital audio from my TV to the surround amplifier for a few years now. The bandwidth of s/pdif is about 6-8MHz. The receivers can be had for a few dollars and contain built in thresholding and AGC. Search digikey for a TOSLINK receiver. For the transmitter you can use a few digital logic buffer gates in parallel, driving a transistor biased to keep the laser just below lasing threshold with a logic 'low' and a few 10s of miliwatts at logic 'high'. I used a CRT color drive transistor but a 2n2222 array should work equally well.
drlava 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 05:45 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