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Info On Blood Trail Tracking Lights |
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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Posted: June/13/2009 at 10:23 |
I work in electronics and have converted multiple conventional flashlights to LED based flashlights. It just occurred to me that instead of using white LEDs I could use red and green ones mixed to make a blood detector.
I did a fast internet search and found that the Blood trail tracking light use red and green lights tuned to light frequencies that cause blood to be reflective. Since colored LEDs are of very narrow bandwidth it should be quite easy to select the Correct Frequencies (color) LEDs to do this. If I can identify the correct light frequencies needed I can extremely cheaply, convert flashlights to find blood for night time tracking. Current 5mm Hi intensity LEDs are pretty cheap and I could easily convert a 6 volt latern flood for under $5. What I don't know is the specific light frequencies needed other than red & green colored. There are as many as 5 to 10 different LEDs all Red to our eyes but are different Frequencies, same applies for green LEDs.
This is an example: 8 10mm LEDS in a 2.5" reflector, bright enough that you can't look into them when ON but only draws 40mA. With the 18v pack this will stay on for over 3 days straight before a pack charge is required. I am sure that I could probably make a blood detector on this platform that would be stronger than anything on the market at a fraction of the price.
So, what does everybody know about Blood detectors in general and teh light frequencies?
All input would be welcome! If it works out I would probably be able to offer the above platform minus the battery pack for $25-30 dollars plus shipping cost.
ALright Guys...Give me some input!!!
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"Peace is that brief glorious moment in history when everybody stands around reloading".
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Dogger
Optics Jedi Master Joined: January/02/2007 Location: Ontario, Canada Status: Online Points: 8913 |
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bud, have alook at this site. I am still searching but there are some spectrographic graphs that might help.
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mike650
Optics God Joined: May/14/2006 Location: West of Rockies Status: Offline Points: 14569 |
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I thought blood tracking lights were blue, not green, but things may have changed since the last time I read up on it. I see red is now used in combination as well. Cool idea Bud!! |
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“A hunt based only on trophies taken falls far short of what the ultimate goal should be.” – Fred Bear
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300S&W
Optics God Joined: January/27/2008 Location: Burlington,WV Status: Offline Points: 10592 |
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Just checked one that a friend gave me yrs back(shows how much I don't use it). 4 LED's,2 red,and 2 blue.
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"I ain't got time to bleed!"
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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With only 2 LEDS each I can see why it doesn't get used. I am talking about 10-20 LEDs of each color. Plus LEDs technology has come a long way in just the last 2 years. LED light outputs are up across the boards too. So I am talking about considerably more light for easier detection. The link Craig posted gave me a great starting points. I think I will make a prototype or two and do a little testing.
Who on the Mafia night hunts and could make use of such a tool?
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"Peace is that brief glorious moment in history when everybody stands around reloading".
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pyro6999
Optics Retard OT TITAN Joined: December/22/2006 Location: North Dakota Status: Offline Points: 22034 |
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i could really use a "built" flashlight for firefighting. i have a led flashlight and its great for use in the smoke, but it could always be brighter. the light i currently use is a 7 led streamlight.
Edited by pyro6999 - June/13/2009 at 12:08 |
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They call me "Boots"
375H&H Mag: Yeah, it kills stuff "extra dead" 343 we will never forget God Bless Chris Ledoux "good ride cowboy" |
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supertool73
Optics God Superstool Joined: January/03/2008 Status: Offline Points: 11814 |
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Blue LEDs are very good for tracking and picking up blood trails. Aviation mechanics use them to so they can look for fluid leaks.
Surefire makes a flashlight called the Kroma and that is why they put the blue LEDs in it. I remember reading that after it came out. Except it is like $300 |
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300S&W
Optics God Joined: January/27/2008 Location: Burlington,WV Status: Offline Points: 10592 |
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Mine was free,st,and Bud still made fun of it!!
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"I ain't got time to bleed!"
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cyborg
Optics God Gaseous Clay Joined: August/24/2007 Location: North Georgia Status: Offline Points: 12288 |
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I have a Gerber Carnivore..... It does a fairly good job.
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An armed public are citizens. A disarmed public are subjects. OATH KEEPER #8233 Support us, and join our cause. Cyborg |
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Dogger
Optics Jedi Master Joined: January/02/2007 Location: Ontario, Canada Status: Online Points: 8913 |
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naw, bud ain't makin' fun of it he's just bein' contrary is all!
bud's design will pick up a blood trail at a half mile.
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God save the Empire!
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supertool73
Optics God Superstool Joined: January/03/2008 Status: Offline Points: 11814 |
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Problem with a 10 or 20 LED light is if u turn it on at night you can say goodbye to night vision. Even if it is blue or red it could still kill it being that bright. For night tracking I would think you would only want a light with 1 or 2 LEDs. I have some keychain 1 led lights I use all the time for hunting and in the dark they easily light my way on a trail they allow me to keep my night vision.
These are the ones I use and they are crazy bright for a 1 led, yet don't kill my night vision. http://www.inovalight.com/micro.html |
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Lifetime warranty and excellent customer service don't mean a thing when your gun fails during a zombie attack.
"A Liberal is a person who will give away everything they don't own." |
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Dogger
Optics Jedi Master Joined: January/02/2007 Location: Ontario, Canada Status: Online Points: 8913 |
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bud it looks like you will need an LED around 445nm. One source I read was also using yellow or orange glasses acting as filters to enhance, but I believe this was after using a flourescein spray. Not Sure if this would be required or if it would even enhance for your application. Ilya may be a good resource here.
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God save the Empire!
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cyborg
Optics God Gaseous Clay Joined: August/24/2007 Location: North Georgia Status: Offline Points: 12288 |
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Hey Bud...... Here's a great idea...... Make them for a hat mounted device, with a control for use as a light or blood tracking option. nNow that I've given you that idea...... I want say 20% of the take.
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With Freedom comes great responsibility, you cannot have one without the other
An armed public are citizens. A disarmed public are subjects. OATH KEEPER #8233 Support us, and join our cause. Cyborg |
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Kickboxer
MODERATOR Moderator Joined: February/13/2008 Status: Offline Points: 23679 |
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I suggest purple at about 405nm which will probably produce some UV (don't look directly at it), green at about 525nm (which makes it good for looking at a map), and blue for brightness at about 470nm. You could probably substitute orange at about 605nm for the blue... it has about the same effect as red light, but won't impact your vision like white light. You would have to do some experimentation with the colors mix to get the biggest result... remembering that your existing atmospheric conditions will also contribute. Try to find a "standard day" to execute testing. Time of day will also impact results.
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300S&W
Optics God Joined: January/27/2008 Location: Burlington,WV Status: Offline Points: 10592 |
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Billy,Browning does/did make one. I had one but gave it away. It had Browning logo on it anyways.
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"I ain't got time to bleed!"
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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whoa, 405nm is cutting it a little too close to UVC (365nm) which causes cateracts. Dentistry using Vis-cure adhesive in Vis-blue range 405 to 425nm and even then it is recommended to wear UV eye protection.
LEDs are fairly monochromic with a very narrow range of emmission frequencies. The one website I looked at before starting this string used green and red LEDs to minimize night vision loss and not spook game while getting acceptable blood detection. Also if you mix too many color LEDs they tend to wash to white.
Experimenting I have to do!
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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Earl, Bro, your killing me... I wasn't making fun of it. You are the one that said it hardly ever gets used. I only now realize that it has nothing to do with it's performance but more to the fact that it is well past your bedtime when the opportunity to use it comes along.
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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A lower powered brim version would definitely be an option on the hands-free line-up of Budster Lights!
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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Dogger
Optics Jedi Master Joined: January/02/2007 Location: Ontario, Canada Status: Online Points: 8913 |
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Hey I like the name: BudLite
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God save the Empire!
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budperm
Optics Retard show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31710 |
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I guess one of the things that started me down this path was the posting of the trophy Buck that was eaten overnight by wolfs cause they couldn't track him in the dark. The platform (Dewalt flashlight) is not exactly light weight. It is powerful and lasts a long time on a single charge. I am sure lesser performers like a 2-3 cell maglite or such would also work well.
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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