*BLF LT1 Lantern Project* (Codes for batch #1 underway from Sofirn)

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teacher
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DBSAR wrote:

indeed the test unit lens is closer to the edges of the head and the mid section, which i like as it reduces any edge shadows and increases the illuminance angle directions.
This sounds like a win – win too. Thumbs Up

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funkychateau
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Forgive me if this is a redundant question, but is there a user-interface diagram somewhere back in these 150 pages of posts?

DBSAR
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funkychateau wrote:
Forgive me if this is a redundant question, but is there a user-interface diagram somewhere back in these 150 pages of posts?

There is a specification list posted in the OP, but for the operation of the firmware of the lantern’s modes, our team member Toykeeper is developing a LT1 lantern version of the Andruil software, (and should be a full schematic of the operation soon of the finalized production of the lantern user-interface.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Phlogiston
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DBSAR wrote:
I will be asking then to reduce the opacity of the frosting of the globe/lens. As less frosting will not affect the CRI as much, and will also allow more lumens through, (a double bonus) I will list the changes soon to the production one over the test unit.

indeed the test unit lens is closer to the edges of the head and the mid section, which i like as it reduces any edge shadows and increases the illuminance angle directions.

Thanks for the info Thumbs Up
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funkychateau wrote:
Forgive me if this is a redundant question, but is there a user-interface diagram somewhere back in these 150 pages of posts?

The user interface will be similar to the first item in the linked post. What that does not show is the tint mixing commands. Also, that light is based on a single 7135 regulator plus a FET driver. The driver for the lantern is several 7135s, so the output is always regulated to the set level.

PocketSammich wrote: I don’t need this, but I want it. Please sign me up.

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Great job on the video DBSAR. It was nice to see and here you describe the features. Thumbs Up
The lantern is looking very good, really looking forward to gifting a couple to my sons.

PocketSammich wrote: I don’t need this, but I want it. Please sign me up.

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These are the additions since last Sunday. Count is 1509 as of tonight.

Don’t forget to check that your BLF user name is valid on either one of the Excel spreadsheets linked in post #1. If your name is not correct then you need to send me a PM with the correct spelling otherwise you won’t be getting a PM when the buy goes live.

This check only needs to be done once.

Only send a PM if your name is INCORRECT

1522 weklund
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9mm/40cal/45cal bullets and large/small pistol primers available for sale in San Francisco Bay area

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Tally-ho wrote:
Concerning the driver, is there something that will work as an electrical “buffer” to avoid the lantern to turn off with “strong” bumps on the bottom ? It might not happen with longer protected batteries but might be a problem with shorter batteries that less compress the springs.

you may add a 0.1F supercap to the driver which is more than enough to sustan the bumps and also funftion with no battery
anyway a alntern is not meant to bump around much
Fireflies tested a 100uF cap added to C2 and it does not work good reducing bumps shutting the light off

Anduril can be flashed that it comes after a bump on last memorized leven, which will work well, the question is if we want this on the stock light or not

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dekozn wrote:
As much as I would like to have the lantern in my hands, I wouldn’t rush things now to get it over with and regretting things later. I for one would like to see a re-design for a more compact lantern. The more compact the better, like everything I take for camping. Weight and size is one of the important things for camping gear and this lantern is geared towards camping no?

It depends. Myself I camp in 3 styles.
I often arrive by car and spend time in a tent – then size and volume are or secondary concern.
Or I travel with backpack, sometimes by foot. Then size and weight are critical, LT1 is surely too large.
There’s also one yearly event where I travel by car but leave it several km from the tent. Then size and weight matter but are not critical.

Overall…I like compactness. But I don’t really care much as LT1 is already quite big and heavy.

funkychateau
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DBSAR wrote:
funkychateau wrote:
Forgive me if this is a redundant question, but is there a user-interface diagram somewhere back in these 150 pages of posts?

There is a specification list posted in the OP, but for the operation of the firmware of the lantern’s modes, our team member Toykeeper is developing a LT1 lantern version of the Andruil software, (and should be a full schematic of the operation soon of the finalized production of the lantern user-interface.

I assume that the final version will not have lantern-useless modes like “momentary” and “bicycle strobe”, but do we know yet whether it will contain the candle, sleep timer, lightning storm, etc?

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cu42 wrote:
Does the V2 and sample lens produce the same amount of output? Output being equal, I think more compact would be universally better for everyone. I wouldn’t want a larger lantern just because it “seems” right.

I second this. Function before form.

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While I’m at it, sbslider/Sig, would you please add two more for me please. Should bring the total to 6. Thanks!

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funkychateau wrote:
DBSAR wrote:
funkychateau wrote:
Forgive me if this is a redundant question, but is there a user-interface diagram somewhere back in these 150 pages of posts?

There is a specification list posted in the OP, but for the operation of the firmware of the lantern’s modes, our team member Toykeeper is developing a LT1 lantern version of the Andruil software, (and should be a full schematic of the operation soon of the finalized production of the lantern user-interface.

I assume that the final version will not have lantern-useless modes like “momentary” and “bicycle strobe”, but do we know yet whether it will contain the candle, sleep timer, lightning storm, etc?

Those modes may be useless for a lantern, but it makes me think that it would be useful to have a mode to attract attention in an emergency with long run-time. Whether that’s … – - – … or something else, there are probably others here more qualified.

(Edited my faulty Morse)

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Very Good job on the Video, lots of information.

I like the idea of the 2 O-Rings for people like me why drop/tip over things.

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I mixed a 3000K and 5000K in a lightly frosted quad TIR, resulting beam is this:

CCT = 3887K (Duv 0.0010)

Color Rendering Index (Ra) = 92.7 [ R9 = 68.5 ] R1 = 93.3 R2 = 93.7 R3 = 93.3 R4 = 93.7 R5 = 93.0 R6 = 91.5 R7 = 94.4 R8 = 88.4 R9 = 68.5 R10 = 85.2 R11 = 94.6 R12 = 79.2 R13 = 93.1 R14 = 96.4

Yxy: 2088.710557 0.386335 0.382505

It’s not the exact LEDs the lantern will have but it should be a ballpark number for when both channels are at “max”. This is a good result and lands very close to BBL.

funkychateau
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ossifrage wrote:
funkychateau wrote:
DBSAR wrote:
funkychateau wrote:
Forgive me if this is a redundant question, but is there a user-interface diagram somewhere back in these 150 pages of posts?

There is a specification list posted in the OP, but for the operation of the firmware of the lantern’s modes, our team member Toykeeper is developing a LT1 lantern version of the Andruil software, (and should be a full schematic of the operation soon of the finalized production of the lantern user-interface.

I assume that the final version will not have lantern-useless modes like “momentary” and “bicycle strobe”, but do we know yet whether it will contain the candle, sleep timer, lightning storm, etc?

Those modes may be useless for a lantern, but it makes me think that it would be useful to have a mode to attract attention in an emergency with long run-time. Whether that’s – - – … – - – or something else, there are probably others here more qualified.

Yes, there is definitely use for a beacon mode. And I’d like to see more of a true beacon, like many of the Nitecore lights. Beacons in current Anduril releases only implement something I’d call a “blinker”.

BlueSwordM
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A momentary would actually be quite useful as it would allow for quick operation for quick uses.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

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funkychateau wrote:
Yes, there is definitely use for a beacon mode. And I’d like to see more of a true beacon, like many of the Nitecore lights. Beacons in current Anduril releases only implement something I’d call a “blinker”.

Whats the difference of what you’d call a “true beacon”, vs what you’d call a “blinker”. I personally think Aduril is great considering you can adjust the timing and light intensity, which you can’t do on any Nitecore light that I know of.

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For some reason I thought I put my name on the list 2 years ago, but I did not. Please put me down for one . Thanx
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I’m in! Put me on the interest list.

People actually read these??? Hi there.

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Sweet sassy molassey. A million opinions will lead to a million years in wait. I think by this point in time DBSAR has earned the position of ultimate authority in the creation of this light. I say we let him ride with his gut and finish it. Sure, smaller size and lesser opacity would be nice but I’m down for even his current prototype if it were available. Who says there has to be only one? This isn’t highlander. Make some options available at time of purchase and it should appease the masses. It works for the other guys.

“Electricity is really just organized lightning”
― George Carlin

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RobertB wrote:
funkychateau wrote:
Yes, there is definitely use for a beacon mode. And I’d like to see more of a true beacon, like many of the Nitecore lights. Beacons in current Anduril releases only implement something I’d call a “blinker”.

Whats the difference of what you’d call a “true beacon”, vs what you’d call a “blinker”. I personally think Aduril is great considering you can adjust the timing and light intensity, which you can’t do on any Nitecore light that I know of.

I’m not funkychateau but this is Nitecore NU20 CRI beacon mode.
https://youtu.be/IKdCoB0gIVQ (captured in 720p120, YT transcoded to 720p60, link to original in description)
This required many attempts…but I actually managed to capture the blip in 720p960 (720p30 playback).
https://youtu.be/I2jLbf8EWfI (link to original in description)

This is what comes to my mind when someone says beacon.
I’m not good with maths but I calculated the above slow-mo capture should represent ~0.184s of real life and since there’s 177 frames in the file and the blip takes ~21 frames it would mean Nitecore’s beacon duration is ~22ms compared to Anduril’s 500ms which is rather long but that’s just my opinion.
I recall they say a blink of an eye takes ~300-400ms so 500ms certainly is a blink.

However I don’t think this needs to change in the firmware, if someone doesn’t like it they can always modify it themselves and flash it. (assuming the LT1 firmware is available for download after release?)

DBSAR
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Relampago wrote:
Sweet sassy molassey. A million opinions will lead to a million years in wait. I think by this point in time DBSAR has earned the position of ultimate authority in the creation of this light. I say we let him ride with his gut and finish it. Sure, smaller size and lesser opacity would be nice but I’m down for even his current prototype if it were available. Who says there has to be only one? This isn’t highlander. Make some options available at time of purchase and it should appease the masses. It works for the other guys.
Thumbs Up Im sending Barry the small list of adjustments today to get this first version LT1 rolling into production.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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please put me on the list for one unit

funkychateau
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RobertB wrote:
funkychateau wrote:
Yes, there is definitely use for a beacon mode. And I’d like to see more of a true beacon, like many of the Nitecore lights. Beacons in current Anduril releases only implement something I’d call a “blinker”.

Whats the difference of what you’d call a “true beacon”, vs what you’d call a “blinker”. I personally think Aduril is great considering you can adjust the timing and light intensity, which you can’t do on any Nitecore light that I know of.

A true beacon has a very short “on” time, so that you can have a high-intensity beacon yet very low average current. All of the Anduril versions I’ve read about only let you adjust off time, and you’re stuck with the half-second or so of on time. Knock that on-time down, and you could run a beacon at turbo brightness for days, or even weeks.

A real beacon, which provides a high-intensity locator function for long periods of time, is a very useful feature in a wilderness light.

You don’t need to be able to adjust on-time, just hardcore it shorter. About 0.05 seconds is a really good compromise. Easily seen, yet uses 10 times less average battery current that the existing implementation.

All of my Nitecores, even the headlamp (I believe), have good true-beacon implementations.

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I’d like to be added to the interest list please for x1. Thanks!

funkychateau
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I’d also like to be added to the list.

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In for one lantern.. thanks!

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Relampago wrote:
A million opinions

Going in all directions like…
DBSAR wrote:
Thumbs Up Im sending Barry the small list of adjustments today to get this first version LT1 rolling into production.
DBSAR
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As we all know, we can talk and chat about different changes to the LT1 lantern for weeks, months, & even years more, but its time to set it ready to get this into production. I have decided on the small changes to make it easier to get this rolling for orders, and with the changes i am happy with this version of LT1 as the first. Either way, this will be better in so many ways than ever other area light/lantern i have tested, used, bought, and even modified, regardless of size. I sent Barry of Sofirn the changes list and information today. after long thinking and deliberation, i decided to leave the head size same as the sample, as it is still smaller than most of my more powerful lanterns, but has so much more abilities and capacity.

Once it goes into production, i will continue to work on the accessory kit that can be acquired for the lantern, or added in the future as a deluxe set.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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