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

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anycolourfloyd
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DBSAR wrote:
ToyKeeper wrote:

From off:

  • 1 click: Turn on at memorized level.
  • Hold: Turn on at lowest level. Keep holding to get brighter.
  • 2 clicks: Turn on at ceiling level. Repeat to go to full turbo, if it’s higher than the ceiling. Once at full turbo, repeat to go back to memorized level.
  • 2 clicks, but hold second click: Turn on at ceiling, then keep holding to get dimmer.

While on:

  • 1 click: Off.
  • Hold: Increase brightness. Release and hold again to decrease.
  • 2 clicks: Toggle between turbo and memorized level.
  • 2 clicks, but hold second click: Decrease brightness.
  • 3 clicks: Toggle between smooth ramping and mode group.
  • 4 clicks: Configure current mode — floor, ceiling, and (if relevant) number of steps.

The default can be moon/low/med/high, and regular use can be explained in just 8 words: Click for on/off, hold to change brightness.

That mode set up is good. As long as the default is the 4-modes, ( which seems to be the most used mode-type i have tested and used in the field in a lantern) I’m not sure if a “turbo” mode is practical with a lantern as with lanterns they are usually continuous-run lights, and turbo would overheat the LED heatsink head after some time. (unless the turbo mode can be set to drop to the default high mode after a maximum of 1 minute.) i found during tests that even a XM-L2 run at 1.07 amps for 30 minutes continuously or more heats up the large solid aluminum heatsink head to 60 plus degrees C. (which is somewhat hot to the touch for a child if one did touch the lantern.

Definitely agree with keeping the default modes simple!

Also while I think USB charging is really important in a lantern, I don’t think the ability to act as a power bank is that important if increasing cost and complexity. Actual power banks with quick charge are so readily available, light and compact that probably most people take one tramping, letalone car camping.

Neomis
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Interested

Splott-Light
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Hi,

Interested in 1 (depending on price).

Good to see this suddenly taking off and taking shape with a Team now.

Thanks for your hard work.

Appreciated.

Cheers,
S-L Smile

Ouchyfoot to a New Member: Welcome CJ. Now you have to learn about buying an inexpensive flashlight and modifying it until it either blows up, or starts small fires on the moon…………

Hugh Johnson:
I, too, once lived a tragic and empty life. Then I found [portable] light.
You forgot to mention clothes. I sold most of my clothes to fund my light collection. This is actually fine, since I only go out after dark, and most people can’t see me.
Finally, I got my priorities straight.

ToyKeeper
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At the moment it’s mostly DEL doing all the work, designing a circuit which will handle light and USB in a SRK-style form factor. It may well be the hardest part of this project.

Physical host design seems like it’ll be a fair amount of work too, due to the USB port(s) and all the lantern-style adjustments to the head.

Since I’m doing firmware, I’ve got the easy job… all I have to do is port my FSM toolkit to the new driver and tweak the calibration and settings. Most of the work there was done months ago.

Blazer296
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Ok, I thought I already joined this one……..but I dont see it so,

Put me in for at least 1, more than likely 2-4 if the price is not too high.

Thanks,
Jim

DBSAR
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ToyKeeper wrote:
At the moment it’s mostly DEL doing all the work, designing a circuit which will handle light and USB in a SRK-style form factor. It may well be the hardest part of this project.

Physical host design seems like it’ll be a fair amount of work too, due to the USB port(s) and all the lantern-style adjustments to the head.

Since I’m doing firmware, I’ve got the easy job… all I have to do is port my FSM toolkit to the new driver and tweak the calibration and settings. Most of the work there was done months ago.

I am working on doing a modification to the prototype to make the head of the lantern more stronger, (using a center bolt to hold the head & globe/shade together) but testing with two LEDs. Also will revise the drawing design to show the change that works with o-rings. Also adding tripod mounts to the bottom as some mentioned that would be as good option, (for lighting up a campsite or back yard are on a tripod.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Mr.Scott
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Please add me to the list for 1.

Thanks!

object_in_space
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This project has me excited!

Please add me to the interest list

DavidEF
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DBSAR wrote:

I am working on doing a modification to the prototype to make the head of the lantern more stronger, (using a center bolt to hold the head & globe/shade together) but testing with two LEDs. Also will revise the drawing design to show the change that works with o-rings. Also adding tripod mounts to the bottom as some mentioned that would be as good option, (for lighting up a campsite or back yard are on a tripod.


If the LED(s) will not be in the center, and instead a bolt will be there, I’d rather see three (or four) LEDs used, so the light doesn’t become bi-directional with shadow lines between the outputs of the two LEDs.

But you’re testing it, so I’ll trust you to come up with what works. Big Smile

Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone.
-Ayn Rand

MtnDon
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DBSAR wrote:

………. (using a center bolt to hold the head & globe/shade together) but testing with two LEDs

Rather than a center bolt, how about a center tube to use as a wire chase?

Caleb
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MtnDon wrote:
DBSAR wrote:

………. (using a center bolt to hold the head & globe/shade together) but testing with two LEDs

Rather than a center bolt, how about a center tube to use as a wire chase?

Brilliant!

DBSAR
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MtnDon wrote:
DBSAR wrote:

………. (using a center bolt to hold the head & globe/shade together) but testing with two LEDs

Rather than a center bolt, how about a center tube to use as a wire chase?

That was an option to test. ( a hollow bolt/tube to run the wires to the LEDs.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

d_t_a
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Pardon if I wasn’t able to check the earlier messages, but around how much would be the approximate price of this BLF lantern?
I’d be interested, depending on the price..

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