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Why is my red laser brighter than my green one outside?

brendon7358

brendon7358

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I have a 200mw red laser and a 5mw green laser but inside the green laser is much brighter than the red one and the red one is barely visible but outside they are both the same I think the red one is actually 15% brighter than the green why is this ? Both tests were on fully charged batteries and the red laser was focused on infinite.
 





Kmor2004

Kmor2004

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Rhetorical question in bound....

Is a 100w incandescent brighter then a 75W, is a 75W greater then a 65W or a 40W or a 20W or a 3W?
 
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strik3

strik3

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who uses incandescent bulbs these days? in australia you cannot buy them any more. unless they are for a heritage listed buildings. and even then you need permits
 
E

ereptor

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lol i use incandescent bulbs at the appartment 7x100W. They use a lot of electricity but the lighting is great
 
LaZeRz

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Just if you didnt understand the comments above

A green laser is more visible to the human eyes BUT, lasers come in different powers so you can have a 300mw red laser that is only as bright as a 15mw green...
 
Kmor2004

Kmor2004

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I apologize if I sounded like a big jerk :yabbem:, but if you can recall back to when incendescent lights we're purchasable, a 100W was brighter then a 60W, a 40W, or a 20W, because it used more energy and gave off more energy as light then its lower wattage counterpart.

P.S THose energy effecient CFL bulbs are a farce because the only true energy savings yu get out of flourescent lights is if you leave them on all the time, now if it were LED's lights then you're talking energy effecient.
 
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brendon7358

brendon7358

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Kmor2004 said:
I apologize if I sounded like a big jerk :yabbem:, but if you can recall back to when incendescent lights we're purchasable, a 100W was brighter then a 60W, a 40W, or a 20W, because it used more energy and gave off more energy as light then its lower wattage counterpart.

P.S THose energy effecient CFL bulbs are a farce because the only true energy savings yu get out of flourescent lights is if you leave them on all the time, now if it were LED's lights then you're talking energy effecient.
Click to expand...

its ok but I thought that green is brighter than red in most any circumstance but apparently this is not so
 
RA_pierce

RA_pierce

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Kmor2004 said:
but if you can recall back to when incendescent lights we're purchasable, a 100W was brighter then a 60W, a 40W, or a 20W, because it used more energy and gave off more energy as light then its lower wattage counterpart.
Click to expand...

Yes.
However when we are talking about different wavelengths in the visible spectrum, more power does not necessarily mean brighter.
 
Dawinzi

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I think it has to do with the Dust particle a Laser reflect indoor. That makes it to be more visible.
 
Tech_Junkie

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Dawinzi said:
I think it has to do with the Dust particle a Laser reflect indoor. That makes it to be more visible.
Click to expand...

Exactly. The particles outside is giving you a better view of the actual power of the laser than the particles in your house.
 
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CapeClover

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strik3 said:
who uses incandescent bulbs these days? in australia you cannot buy them any more. unless they are for a heritage listed buildings. and even then you need permits
Click to expand...

Here in the United States incandescents are still widely used. There are some restrictions going into effect on certain wattages and/or bulbs that give off less than a certain number of candelas per watt. But they are still in wide use, are readily available, and will be available for a long time.
 
JBTexas

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I was interested in this a few years ago, and tracked legislation for a while. I just looked this up:
Phase-out of incandescent light bulbs - Wikipedia, the free encyclopedia

On dust;
Dwellings in general will act as "dust collectors". You will USUALLY have more particulates inside than you will outside.

My location could arguably be considered one of the "dust capitals of the world". Outside, my 200mw 532nm has a beautiful bright green beam. My 300-400 660nm red isn't all that visible - it takes a fairly low angle of incidence to see it well.

Inside, BOTH beams are very bright. It's breathtaking.

Maybe I could start a business. "Genu-wine West Texas Dust for Sale".

I wonder about that huge dust storm in Arizona... lasers hitting the approaching "wave" of dust must look interesting.

 
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Helios

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JBTexas said:
I wonder about that huge dust storm in Arizona... lasers hitting the approaching "wave" of dust must look interesting.

Click to expand...

I am moving to phoenix in december so I will take a video and share it :D
 
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