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FrozenGate by Avery

what power of green in RGV laser?

3zuli

3zuli

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May 30, 2009
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hi, i'm going to build an RGV laser baser on PHR803T optic. I'll use PHR violet diode (@ 100~130mA), 16x red diode from darklasers and some green. but my question is: what power on green is good to combinate with those lasers?

edit: and what's the recommended current of the darklaser's 16x laser?
 
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I have a couple of RGV setups that use a 140mW PHR, 200mW red, and 40mW green that aren't so bad ... I'd personally like to turn the green back a hair more but the modules stop lasing at about 35-40mW.
 
Brightness is more important than perfect color balance if you ask me. No one will notice, "hey, that 'white' looks a little green to me," but they may say, "that show was kind of dim."
 
That Chroma Program is excellent. Thanks for the link! Perfect as I start my RGV build

Jules
 
Example: lets say your building a 500mw combinde beam line out put.
1) 405nm @ 100mw.
2) 532nm @ 200mw.
3) 650nm @ 200mw.
works well for 7 colors on TTL modulation
RGV RATIO:0.5:1:1
 
BEAMANN said:
works well for 7 colors on TTL modulation
RGV RATIO:0.5:1:1
Click to expand...

Works well? You're talking out of your ass again, sir. First, that's not white, that's a lime green. You need about four times more red than that and about eight times more violet than that. Second, the ratio is stated in the order it was given. The ratio you listed was 2:2:1. You need to shoot for 4:1:4
 
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Cyparagon said:
Works well? You're talking out of your ass again, sir. First, that's not white, that's a lime green. You need about four times more red than that and about eight times more violet than that. Second, the ratio is stated in the order it was given. The ratio you listed was 2:2:1. You need to shoot for 4:1:4
Click to expand...

I don't understand your bad languge to me! I deal in the industy of laser shows from 1983 to now, GODSLIGHTSHOWS.COM (GODS LIGHT SHOWS and advertising) I did not make up that ratio It was given to me by CT LASERS (Marc) who builds commercial projectors, and was comfermed by Bill, W at Pangolin they by any means have an undersstading that gose past you and your wiki pidea knowladge will ever be! I have e-mailed them both and asked the rookie Q's to them, But thats what I remember the ratio to be, If you look at my 2010 SELEM show the white looks perfict, so when they e-mail me back and tell me my version of the ratio is wrong or right I'll be shure to post acrdingly and kiss your ASS or tell you to kiss my ASS!
please stop the abusive language! using degrating words to hit home a point is a childs tactic and aidiots attempt at greatness, I am open minded to be wrong and don't mind being wrong thats how I learn not to be wrong.
If you realy think you are on top of your game, THIS IS A CHALANGE TO YOU! become a PHOTONLEXICON member and put your money were your mouth is and post your debates thair about your laser and electrical knowledge, YOU would be in for an EDUCATION! So lets not fight and call eachother names and negative replys
 
BEAMANN said:
I don't understand your bad languge to me! I deal in the industy of laser shows from 1983 to now, GODSLIGHTSHOWS.COM (GODS LIGHT SHOWS and advertising) I did not make up that ratio It was given to me by CT LASERS (Marc) who builds commercial projectors, and was comfermed by Bill, W at Pangolin they by any means have an undersstading that gose past you and your wiki pidea knowladge will ever be! I have e-mailed them both and asked the rookie Q's to them, But thats what I remember the ratio to be, If you look at my 2010 SELEM show the white looks perfict, so when they e-mail me back and tell me my version of the ratio is wrong or right I'll be shure to post acrdingly and kiss your ASS or tell you to kiss my ASS!
please stop the abusive language! using degrating words to hit home a point is a childs tactic and aidiots attempt at greatness, I am open minded to be wrong and don't mind being wrong thats how I learn not to be wrong.
If you realy think you are on top of your game, THIS IS A CHALANGE TO YOU! become a PHOTONLEXICON member and put your money were your mouth is and post your debates thair about your laser and electrical knowledge, YOU would be in for an EDUCATION! So lets not fight and call eachother names and negative replys
Click to expand...

Sorry, but any laser expert would tell you that the correct ratio is indeed 4:1:4
 
Grix said:
Sorry, but any laser expert would tell you that the correct ratio is indeed 4:1:4
Click to expand...

It's a good posability I got it all F'ed up, but I am checking on it, and i'll get back to this debate, Right or wrong.
 
@Cyparagon, I owe you a kiss on your butt!
@Grix,

This is the info found in my data base, And I noticed it was for 445nm based RGB. The first projecter I bought from China for my daughter was a 500mw RGV (532nm @ 200 mw, 650nm @ 200mw, and 405nm @ 100mw) The white was not a good white it was a off white "bluish". So I am ready to be schooled!

RGB COLOR MATCHING THE LASERS TO OBTAIN THE BEST WHITE LIGHT OUT PUT
CT LASERS Marc ;recommends For a great Artic White Color
2.5w 640nm RED
1W 532nm GREEN
1.5w 445nm BLUE
Ratio =1:1 B/G
Some one else recommends a ratio of=5:1.red, 5:5, green, tipical is 0.8 445 to 1.0 532

I have never built a RGV Only a RGB 5w with two lines of blue, 445nm combowed with 473nm and thats the one I use in my shows.
so sorry guys I didn't mean to talk out my butt
So what is the ratio for that RGV listed in this post?
 
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@Cyparagon,
I seem to be getting conflecting information where ever I search.
I understand that the ratio 4:1:4 for RGV but when I search this I get back replys that this is a week white, and that I need more power in the 405 out put to make it a nice strong white, no ratios given to help my understanding.
This quoted from FLECOM on PL:
"depends on the wavelengths.. also I think 4:1:4 is too weak on violet for an RGV
405 is close to the edge of the visible spectrum so you need tons of power "

This quoted by MIXGAS on PL:
"Originally Posted by beamann
What is the color balance ratio for white light on a RGV system and on a RGB system
RGB RATIO IS:?
RGV RATIO IS:?
I am being told from another forum that C.T laser is wrong for artic white that his ratio is lime green not white and that the only posable ratio is for RGV is 4:1:4

Which white do you want, D65? For ion at 647,514,488, for example, its 5:1.2:3 for a "standard" D65 white per Lexel's Carol Seidel..

You need to run Tocket's Chroma program, and then try it yourself. Much of how the white is perceived depends on:

1. What it is projected on.
2. Photopic or scotopic vision
3 Source wavelengths
4. Adjacent colors in the image.

Its not a easy issue, as no two of us perceive colors exactly the same. You always need to buy more laser for the red and blue/violet channels then you calculate.
]http://en.wikipedia.org/wiki/Standard_illuminant
Steve "

I have also been told that white is all about the person viewing it, perseption of what white is to them and most viewers would not know what pure white even looks like.
So I am confused to what is the real world ratio aplication of white in a RGV system.
Please help me to understand this so in the future, I can answer a question accuretly and know what I am talking about.
 
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The only way to find the perfect white for you is the view the beam and make fine adjustments in power in person.
 
BEAMANN said:
THIS IS A CHALANGE TO YOU! become a PHOTONLEXICON member
Click to expand...

Lawl? Okay, if you really want to play this game...

I've been a member of PL for 29 months. You have been a member for 5 months. Here, I have been a member for 37 months. You have been a member for less than one month.

BEAMANN said:
put your money were your mouth is and post your debates thair about your laser and electrical knowledge, YOU would be in for an EDUCATION!
Click to expand...

Debate? Is THAT what you think this is? Facts are not debatable. If I said less green with respect to other colors (especially violet) is required to make a good white, no one would disagree with me (especially at PL). If I said line voltage in the US is 120V RMS and 170V peak, no one would disagree with me (especially at PL). Do you know why? Because these are facts.
 
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