Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Buy Site Supporter Role (remove some ads) | LPF Donations

Links below open in new window

FrozenGate by Avery

PHR-803T Laserlighter safety and focus build:

anselm said:
You can create your own and then print them out yourself:
http://laserpointerforums.com/f44/my-warning-label-generator-yeah-i-bored-45360.html

Or if you search in the buy/sell/trade section, there are one or two members printing
them on metal foil and selling them.
Click to expand...
Thanks a bunch Anselm, that will hopefully get the point across that it is dangerous and should be used with caution.

I already had a discussion with my friends about how dangerous it is.

Leodahsan said:
be very aware to not exceed 110mA on the poor diode.
Click to expand...

I won't: however i've noticed that several people recomend 4 1N40001 diodes, some recomend 6, others recomend 5...for the test load. Which one will result in the proper voltage reading over the 1 ohm resistor? I noticed 1 person that made the mistake of using 6 silicons and losing 2 diodes in a matter of minutes. (i would rather not make this mistake)
 





for the PHR I recommend 4 diodes in series for the test load. I use 4 for the 445s and it work fine.
 
Sweet, should be able to set up and test the driver in a couple of weeks, (preferably both drivers.) to tell which i would use.

Pictures soon of the completed housing/modifications to the housing. Also, looking into battery replacement compartments (so the sefety switch doesn't have to come out for the batteries to be changed)
 
Yeah, but the 445nm doesn't worry much if you miscalculate/misread current.
It'll just take it and ask for more.

The 405nm on the other hand is very sensitive to overcurrent and will go POP in the blink of an eye if
you're not doing it right.

Go by the original pictures/instructions from rog8811's tutorial.
 
According to him its 6 diodes and 1 ohm resistor in parallel (the resistor follows the diodes from the + lead) which isn't so bad i ordered 6 anyways.

I can't wait to get started >,< but patience is a virtue with building lasers.
 
Don't I know it....:rolleyes:
In the meantime, practice your soldering skills on things really tiny.
 
What class would a 405nm 90-110mW range be considered? I read the previous scale and it makes sense, however...the newer scale confuses me sense "reflections" from this laser would cause harm upon contact, and sense class 4's burn and could potentially cause a fire hazzard, wouldn't this laser be concidered class 4 under the new standard?

Ps: how tiny? like...wire to wire tiny?
 
In news, i updated the consept: The white tubing will be made from plastic possibly from a white pen, will be 2 inches long, and have a white removable lid to it. The heat sink will be made from aluminium, and be covering the entirity of the front of the Aixis module, which will be in the design of a lighter heat shield (can be removed, thicker than the heat shield, and has 2 "slits" in it.) The Safety switch will have a "flip-top" cover, that you flip open, and can toggle. I wish i could draw as well as i did on paper as i did on MS paint.

Also: as far as the batteries go: does anyone know of hearing aid battery holders? That can hold 3 hearing aid batteries so i would be able to use 2x these holders and get 9 V to drive Jib77's driver. I'm just curious cause those would be the perfect size, and i calculated out the battery life with the driver included, and it came to 3.303 Hours (which isn't bad).
 
3.303 hours not considering driver and diode inneficiency, right?
As the battery holders, sorry but I do not know where to get one :(
 
no i considered both:
I took the power coming from the driver into the diode (110[max]mA) times the voltage needed to power the diode (4.7v). then added that to: 9V-4.7V=4.3V*110mA and it came out to 990mW for both combined, this then divided from the mW hours of the batter which was...
9V at 360mAH and came to 3.303...repeating so roughly 3 hours.
 
Oh yeah, didn't realized that this could work.
:wtf: great job dude. Are you considering a 9v battery then?

Edit: If you use two li-ions you will get better results IMO. Longer operating time etc. :P
 
Well the issue is fitting it in the host...the host is small, smaller than a laser pen: 9V batter is coming from 6 1.5V zink-air batteries, which have roughly 60mAhour each. If it was a 9v batter it would be 630 mA hours and roughly 5 -6 hours of operation. So yes, i know using thse small batteries is a issue with how long it will last. But its the only way i can see fitting it into the host.
 
You can build/buy another host. Some at dealextreme are $4 and fit a 10440, 4.2v @ 400mAh. ;)
 
Oops my bad. Didn't remembered it was a laser lighter project :sorry:

Oh well, adapters for hearing aids batteries can be hard to find, thats up to you.. I can't help you in that part.
 
You must log in or register to reply here.


Back
Top