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 11-26-2009, 11:30 PM #1
LordKaramazov's Avatar
Class 2 Laser
 
Join Date: Nov 2009
Location: Coimbra/Lisboa, Portugal. Current location: Hannover, Deutschland
Posts: 271
Rep Power: 19
LordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud of
LordKaramazov LordKaramazov is offline
Class 2 Laser
LordKaramazov's Avatar
 
Join Date: Nov 2009
Location: Coimbra/Lisboa, Portugal. Current location: Hannover, Deutschland
Posts: 271
Rep Power: 19
LordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud of
Default Mixing lasers-question

Ok, i saw that u can mix lasers with the dichros, but id just like to know if u can tune around the mixed color. For example, u get a red and green laser, and mix them with a dichro. People usually say that the best mix for the yellow would be a 4:1 ratio (red, green). If u start messing around with the power output of either of the lasers, could u tune up to a higher, lower wavelength (more yellowish, more orange, for example) or would you just get a slight tint in the mixed colour towards the one that is more powerful (like the jayrobs first yellow pointer pic where its slight off to green).

ok, now that i read what i wrote, i feel like im doin a dumb question, mainly because of the example pic i gave, but even so, id like to know.

thanks for reading.



Last edited by LordKaramazov; 11-27-2009 at 09:41 AM.
LordKaramazov is offline   Reply With Quote







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







Old 11-27-2009, 09:41 AM #2
Kingdingeling's Avatar
Class 1M Laser
 
Join Date: Oct 2007
Location: Germany - Erftstadt
Posts: 188
Rep Power: 12
Kingdingeling is a jewel in the roughKingdingeling is a jewel in the roughKingdingeling is a jewel in the rough
Send a message via ICQ to Kingdingeling Send a message via MSN to Kingdingeling
Kingdingeling Kingdingeling is offline
Class 1M Laser
Kingdingeling's Avatar
 
Join Date: Oct 2007
Location: Germany - Erftstadt
Posts: 188
Rep Power: 12
Kingdingeling is a jewel in the roughKingdingeling is a jewel in the roughKingdingeling is a jewel in the rough
Send a message via ICQ to Kingdingeling Send a message via MSN to Kingdingeling
Default Re: Mixing lasers-question

Hi.

If this is new for you there ware no dumb questions!
Mixing lasers will usually be done through dichros.
E.g.:

Green laser hitting a dichro that passes green on one side and reflects red on the other.
With the right mixing you get a nice yellow.
As you already wrote the mixture should be around 1:4 (green:red), depends on what red wavelenght you are using. You need quite alot 650 / 660 to get a nice yellow but you would need less 635 as this is more like orange and therefore a bit brighter.

In projectors you use analogue modulaltion so the hard and software can determine how much green and red it will put it to get the right color. Of course you can adjust that as the software can't see what it is mixing.

Basicly you can say, yes, setting the lasers at different powers will give you a better mix.

-Stephan
Kingdingeling is offline   Reply With Quote
Old 11-27-2009, 04:19 PM #3
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Mixing lasers-question

If you have an RGY projector, you can get an approximating for any wavelength between the two being used by varying the power via modulation. So in a word, yes.



For any two (or more, I guess) wavelengths, any point in between them can be attained. It goes to show exactly WHY RGB is far more colorful than RGY.

Attached Thumbnails
Mixing lasers-question-untitled.jpg  

Last edited by Cyparagon; 11-27-2009 at 04:28 PM.
Cyparagon is online now   Reply With Quote
Old 11-27-2009, 05:21 PM #4
LordKaramazov's Avatar
Class 2 Laser
 
Join Date: Nov 2009
Location: Coimbra/Lisboa, Portugal. Current location: Hannover, Deutschland
Posts: 271
Rep Power: 19
LordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud of
LordKaramazov LordKaramazov is offline
Class 2 Laser
LordKaramazov's Avatar
 
Join Date: Nov 2009
Location: Coimbra/Lisboa, Portugal. Current location: Hannover, Deutschland
Posts: 271
Rep Power: 19
LordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud ofLordKaramazov has much to be proud of
Default Re: Mixing lasers-question

as i mixed with programs using the RGY code (like photoshop, gimp, paint, etc), puting blue in 0, and messing with the green and red i could think that. but then the other way (the slight tint to the side of the most powered laser) seemed reasonable too. As u increased greens power, for example, it would start to override the red, and our eye wouldnt percept it as a fine misture of colours, like the 4:1 650nm to 532nm (yeah, i knew the wavelegths, but i just didnt care about it in the question ) but a greenish pale yellow, or a reddish colour where u cant really see whats doin it, but u arent seeing the 650nm red, and u arent seeing an orange or yellow either. Both seemed kind of reasonable when talking about what we see.
I guess that if u have 2 beams perfectly alligned, and same divergence at the mixed laser u could in fact see a perfect mix of colours, that can be tuned to (as cyparagon said "between both wavelengths") match the colour desired.

and im talking about a laser beam, a still one, where u can admire it. and analyze it like i kind of described. With a laser scanner u couldnt for example witness the slight tint to the green like Jayrobs pic on his yellow pointer.

thanks for your answers, now id just like to build an orangish laser or a cyan/turquoise one...oh well
LordKaramazov 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 04:12 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