**BLF Ultimate Lantern Project** -Driver design updates Nov,13,2017 (by DEL

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rumack
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ri chevy wrote:

Welcome to the Forum! Beer

Thanks ri chevy! I could use a few of those with the way life has been going lately. Smile

DBSAR
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EDIT: – I managed to fix the formatting in the OP.) -more prototype photos coming soon.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Northwoods
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Would be cool to have the option of a flashlight lense for it..so you can convert it to a flashlight and back to a lantern.

The Miller
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Northwoods wrote:
Would be cool to have the option of a flashlight lense for it..so you can convert it to a flashlight and back to a lantern.

yeah a recoil thrower Big Smile
but that big heatsink is kind of making that impossible.
DBSAR
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The Miller wrote:
Northwoods wrote:
Would be cool to have the option of a flashlight lense for it..so you can convert it to a flashlight and back to a lantern.
yeah a recoil thrower Big Smile but that big heatsink is kind of making that impossible.

we have tons of flashlights already, the purpose of this project was for a lantern only light.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Northwoods
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I was thinking it would be nice for a shtf light to have that..

Dc38
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I’d be in.

Free dull see and free dull dumb.

Rufusbduck
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Nice! A lot of light still hits the ceiling, how about an inverted cone or curve inside the cap to reflect more of that light sideways or downsince most of led output is directed near 90 degrees from the die plane. You will still get upward spill from what misses the cone.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

Rufusbduck
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Or get creative with a center led and tir optic by leaving the cap open to the tir for beam and the surrounding LEDs scatter light from the outside of the tir. Using something like the 32mm quad Noctogon as a base plate. Cool what you’ve done though.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

Illumenated
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I’m definitely interested in group buy. I can’t afford it but I’ll start saving now!

Melven
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I am interested, I hate all my current electric lanterns. The only lantern I have that does not blind me is my Coleman gas lantern.

Andyman
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I’m (still) very excited about this! Thanks for the updates! Cool

DBSAR
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Rufusbduck wrote:
Or get creative with a center led and tir optic by leaving the cap open to the tir for beam and the surrounding LEDs scatter light from the outside of the tir. Using something like the 32mm quad Noctogon as a base plate. Cool what you’ve done though.

I been experimenting with various reflectors & LED positions to get the light in all directions as evenly as possible while eliminating as much eye-glare as possible. so far the down-firing LED, with lightly frosted diffuser and a lower flat-white reflector seems to work great with getting the light directed both up and down and out the sides evenly without having the LED in direct view that causes glare.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

PleinPhare
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Very interesting project! Do you think the reflector could be made easily interchangeable and available in colors like red or green ? I wonder how much luminosity would be lost but it might also help not scaring wild life to come closer as well as possibly not attract as many bugs as regular light ?

osb40000
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That sounds perfect. I’m very excited about this project and really hope that we see a group buy in the near future. I will more than likely order several for myself and friends and family assuming they are solidly built and perform like your pictures. Thank you for putting in all this time and effort. I currently have ZERO lanterns that I actually enjoy using and dozens of flashlights and headlamps that I love.

DBSAR
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osb40000 wrote:
That sounds perfect. I’m very excited about this project and really hope that we see a group buy in the near future. I will more than likely order several for myself and friends and family assuming they are solidly built and perform like your pictures. Thank you for putting in all this time and effort. I currently have ZERO lanterns that I actually enjoy using and dozens of flashlights and headlamps that I love.

once i field-test it two weekends from now on a big camp trip, i can work on a blueprint to send off to Kronos Smile

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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If it is not too late, it will be very beneficial to incorporate built in charger to recharge the battery.

This enable us to use Solar panel with usb output, so the battery can be top up during the day.
It also saving us having to bring separate li-ion charger during camping trip.

But to think again, this idea might not be feasible as the origina host need to be modded extensively to incorporate this feature Sad

The Miller
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Remember Djozz saying “make it look attractive” earlier in the thread, well that is mission accomplshed!
And what you have tested so far is super.

acml
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I am interested if the cost remains in budget range. This is a great community to be part of. Thanks

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ben1680 wrote:
If it is not too late, it will be very beneficial to incorporate built in charger to recharge the battery.

This enable us to use Solar panel with usb output, so the battery can be top up during the day.
It also saving us having to bring separate li-ion charger during camping trip.

But to think again, this idea might not be feasible as the origina host need to be modded extensively to incorporate this feature Sad

A Charger port & circuit is definitely possible & may be added after i do a field test, based on a 4056 type.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Dirt
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Waiting patiently….not! Good work DB.

antiparanoico
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DBSAR wrote:
ben1680 wrote:
If it is not too late, it will be very beneficial to incorporate built in charger to recharge the battery.

This enable us to use Solar panel with usb output, so the battery can be top up during the day.
It also saving us having to bring separate li-ion charger during camping trip.

But to think again, this idea might not be feasible as the origina host need to be modded extensively to incorporate this feature Sad

A Charger port & circuit is definitely possible & may be added after i do a field test, based on a 4056 type.

WOW!

If anything can go wrong, it will.
Matter will be damaged in direct proportion to its value.

ben1680
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DBSAR wrote:
ben1680 wrote:
If it is not too late, it will be very beneficial to incorporate built in charger to recharge the battery.

This enable us to use Solar panel with usb output, so the battery can be top up during the day.
It also saving us having to bring separate li-ion charger during camping trip.

But to think again, this idea might not be feasible as the origina host need to be modded extensively to incorporate this feature Sad

A Charger port & circuit is definitely possible & may be added after i do a field test, based on a 4056 type.

Woah, excellent!

4056 is good enough as it is very reasonably priced and provide 1A (10w) max current to charge the battery.
Even 10w solar panel is still quite bulky nowadays (about 20% max efficiency), unless we can have access to reasonably priced triple junction solar panel which are used for space application (approaching 30% efficiency) Big Smile

Count me in on this more and more exciting Group Buy…

rag
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Wow, looks like there is finally going to be the perfect lantern. Count me in!

DBSAR
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– We just returned from our 5-day Wilderness Canoe camping trip to the interior of Algonquin Park in Ontario, and the field-test of the BLF/SRK Lantern prototype was a bright success!

The lantern was a hit with the camp group, it was the brightest, most used, longest running, and most commented on lantern i had on the trip. I will have some photos of the lantern in use on the trip posted soon. Smile

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

RobertB
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Sounds great. Can’t wait to see the picts

Dirt
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Been waitin on update!

DBSAR
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Updates & photos from the field-test of the prototype at the top of the OP (with photos

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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Your light really shines. Smile
It also looks tiny compared to the others. Well done. The pictures of your camp make one wish they were there.

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

DBSAR
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MRsDNF wrote:
Your light really shines. Smile It also looks tiny compared to the others. Well done. The pictures of your camp make one wish they were there.

It really did shine on the trip. Its the compact small size,output & run time that really impressed the group campers, all of them commented they would gladly pay nearly any price for such a light if they were commercially available, as most store-bought factory LED lanterns they have or seen (even the best most expensive LED models) suck in comparison when it comes to compact size, output, run-times, modes, and tint.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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