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 > Optics



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



Reply
 
LinkBack Thread Tools Display Modes
Old 07-13-2010, 08:02 PM #1
drumz0rz's Avatar
Member
 
Join Date: Jul 2010
Location: FL, NY, PA
Posts: 37
Rep Power: 0
drumz0rz is on a distinguished road
drumz0rz drumz0rz is offline
Member
drumz0rz's Avatar
 
Join Date: Jul 2010
Location: FL, NY, PA
Posts: 37
Rep Power: 0
drumz0rz is on a distinguished road
Default Using Camera Optics and lasers

Anyone ever check out what happens when you point a laser through a large SLR camera lens? Many high end lenses have dozens of optics inside the barrel which could really do some interesting stuff to the beam.

You could also in theory point a laser through the view finder on an SLR, then focus the lens so that when the dot is sharp on your target, the target is in focus.

My concern though would be could a high power laser (such as 200mW or greater) do damage to the lens assembly or any of it's optical parts (possibly damage some coating on the high end lenses.


drumz0rz is offline   Reply With Quote







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







Old 07-13-2010, 08:33 PM #2
DiRollin's Avatar
Class 1M Laser
 
Join Date: Jun 2010
Location: Monterey Bay, California
Posts: 140
Rep Power: 10
DiRollin has a spectacular aura aboutDiRollin has a spectacular aura aboutDiRollin has a spectacular aura about
DiRollin DiRollin is offline
Class 1M Laser
DiRollin's Avatar
 
Join Date: Jun 2010
Location: Monterey Bay, California
Posts: 140
Rep Power: 10
DiRollin has a spectacular aura aboutDiRollin has a spectacular aura aboutDiRollin has a spectacular aura about
Default Re: Using Camera Optics and lasers

It would look cool if you had like an old SLR that you didn't use and take the lens off and shine a beam into the mirror which would shoot it up to and through the eyepiece... Might make a cool macro photo showing the way light travels through a camera. However I wouldn't want any power laser to hit the sensor of the camera so I would be very careful not to press the shutter button when the beams passing through!
__________________

DiRollin is offline   Reply With Quote
Old 07-13-2010, 11:52 PM #3
Junior Member
 
Join Date: Jul 2010
Posts: 14
Rep Power: 0
mbessey is on a distinguished road
mbessey mbessey is offline
Junior Member
 
Join Date: Jul 2010
Posts: 14
Rep Power: 0
mbessey is on a distinguished road
Default Re: Using Camera Optics and lasers

Just shooting a laser through an SLR lens doesn't do much of anything. All those elements are in there to improve chromatic and spherical aberrations, which aren't much of an issue with a monochromatic light source, located at (virtual) infinity.

If you have two camera lenses, you can mount them front to front or back to back to make a ridiculously over-engineered beam expander, I guess. You would want to be careful with a high-powered beam - there are apertures and baffles inside the lens that could be badly effected by being overheated.
mbessey is offline   Reply With Quote
Old 07-14-2010, 04:06 AM #4
drumz0rz's Avatar
Member
 
Join Date: Jul 2010
Location: FL, NY, PA
Posts: 37
Rep Power: 0
drumz0rz is on a distinguished road
drumz0rz drumz0rz is offline
Member
drumz0rz's Avatar
 
Join Date: Jul 2010
Location: FL, NY, PA
Posts: 37
Rep Power: 0
drumz0rz is on a distinguished road
Default Re: Using Camera Optics and lasers

Quote:
Originally Posted by DiRollin View Post
It would look cool if you had like an old SLR that you didn't use and take the lens off and shine a beam into the mirror which would shoot it up to and through the eyepiece... Might make a cool macro photo showing the way light travels through a camera. However I wouldn't want any power laser to hit the sensor of the camera so I would be very careful not to press the shutter button when the beams passing through!
I would shine it in the eyepiece, not in the lens, that way if you somehow do hit the shutter the mirror flips up and can't do anything.

Yeah, good point. I bet if you took apart a lens you could play with the individual elements but combine they're not meant to really change light that much so it wouldn't do much to the beat.
drumz0rz is offline   Reply With Quote
Old 07-15-2010, 01:09 PM #5
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
Default Re: Using Camera Optics and lasers

Very old lenses, not DSLR lenses might be ok to try as modern lenses have all sorts of anti-UV and Anti IR fogging coating on them.

An old telescope 10x or 20x with beam from laser fired backwards into the aperture lens could provide a VERY powerful focussing rig!
__________________
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 07-15-2010, 03:44 PM #6
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: Using Camera Optics and lasers

Quote:
Originally Posted by Seoul_lasers View Post
An old telescope 10x or 20x with beam from laser fired backwards into the aperture lens could provide a VERY powerful focussing rig!
...and fire into the eyepiece, telescopes make fantastic beam expanders.

-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
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 10:16 PM.


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