*BLF LT1 Lantern Project* (Awaiting for updates on Colored versions)

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heysquanchy1916
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Put me down for 1!

Marcello
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Interested in 1 as well please.

DBSAR
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djozz wrote:
The lumen sphere will give the numbers for comparison, if you manage to place the lantern inside, or at least stick the entire cup inside.

Measuring lux from distances will be too sensitive for brightness variations across the beam so it is not representative of total output.

the entire lantern will fit inside the sphere.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

DBSAR
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Tally-ho wrote:
Test for logo and exo2 black font on an existing picture :

< click for full screen

Looks good Thumbs Up

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

djozz
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DBSAR wrote:
djozz wrote:
The lumen sphere will give the numbers for comparison, if you manage to place the lantern inside, or at least stick the entire cup inside.

Measuring lux from distances will be too sensitive for brightness variations across the beam so it is not representative of total output.

the entire lantern will fit inside the sphere.

!{height:309px; width:400px}https://i.imgur.com/owhaggx.jpg!

Thumbs Up
Sorry to nitpick on the method: it helps integration quite a lot if you wrap as much as possible of the black parts of the lantern in alu-foil (but in a neat way using some cellotape so that the foil does not move too much across the measurements)
seriesone
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Please add me to the list for one.
Thanks.

DBSAR
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djozz wrote:
DBSAR wrote:
djozz wrote:
The lumen sphere will give the numbers for comparison, if you manage to place the lantern inside, or at least stick the entire cup inside.

Measuring lux from distances will be too sensitive for brightness variations across the beam so it is not representative of total output.

the entire lantern will fit inside the sphere.

!{height:309px; width:400px}https://i.imgur.com/owhaggx.jpg!

Thumbs Up
Sorry to nitpick on the method: it helps integration quite a lot if you wrap as much as possible of the black parts of the lantern in alu-foil (but in a neat way using some cellotape so that the foil does not move too much across the measurements)

Its trickier for measuring 360-degree lanterns versus directional flashlights no doubt, but will be comparing it tot its self with globe/shade on versus off, as compared to the V1 & V2 tests i done.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

beastlykings
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I think he means not relative numbers, but absolute numbers for the manufacturer?

dubyrunning
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Sign me up for one, please!

Nicolaas
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Interested in one too, and it would be nice to have the option to order one of these fantastic looking lanterns with a case but without batteries: I have plenty of 18650’s already…..

Did I mention I think it’s looking fantastic?

Regarding the logo choice I’m with Djozz, the other one has letters that are to thick for my liking.

Thanks for all the efforts and cheers,

Nico

Klayking
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Aah what the heck. There’s nothing wrong with my bedside lamp, but this is a lot cooler.

Put me down for one, please. Smile

ligonw
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I would like to be on the list!

amars7
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Put me in for 1 please!

djozz
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beastlykings wrote:
I think he means not relative numbers, but absolute numbers for the manufacturer?

No, I do mean relative numbers too. Even small black things inside integrating spheres affect the amount of integration noticably, and a huge black thing like the BLF Lantern inside a relatively small sphere will effectively kill useful integration of the light output. (no good integration means that what we measure is not total light output, and comparisons can only be made with light sources with the exact same beam. While a different beam is what you want to compare here) It will be a little better than just leaving the sphere out of the setup and just position a luxmeter next to the lantern, but not much better than that. Making the lantern shiny (or even better matt white) enormously improves integration so that your measurement actually somewhat represents total light output and so you can make comparisons. Btw, also baffling the detector against direct light from the lantern would make integration better.

It is not that I want to wish to come over as some know-all, but measuring light comes with some pretty annoying rules and in theory design decisions could be off because they are based on too rough comparisons, and that would be unfortunate.

Klocknov
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Is the accessory kit still looking to be released after the latern?

808Hi
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Please add 2 more to my list. Total 7

DBSAR
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Klocknov wrote:
Is the accessory kit still looking to be released after the latern?

As planned yes, as i have to know the characteristics, dimensions, and abilities of the production model first for some of the accessories. The various accessories will likely include, or variations of,
- a brim-type upper reflector.
- a side directional reflector.
- soft padded carry bag.
- 12 to 15-foot charging cable, (heavier gauge wire)
- high capacity 3500 or 3600mah cells.
- a snap on wide base for uneven surfaces.
- a thread in powerful base magnet.
- a hard case to fit most accessories & the lantern.
- Wall hanging adapter bracket

Other possible matching accessories may be added, including,

- 10-watt or 12 watt folding solar charger panel
- multi-voltage charger power adapter, (12 volt DC, 120 volt AC, 240 volt AC)

Some of the accessories i am already working on with testing on the two prototypes i have.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

braino
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I’m interested in one, please add me to the list!

TUNE4IT
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ToyKeeper wrote:

That’s why I’m planning to add a blink when it hits the end. I’d want to add it anyway, because it’s hard to tell where the edge is… but it can also help make the auto-tint thing more intuitive. Hit the edge, keep pushing for a full second, and then it’ll go to auto. Something like that, anyway.

Isn’t it An idea tot put the auto tint in the muggle mode. This way even a muggle can use the warm and cool feature of this light.

ToyKeeper
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jigsaw wrote:
I’d buy the battery package if they were good batteries. Don’t need any 1500mah trustfire clones.

I’ve gotten quite a few Sofirn batteries, and they seem to be decent. Other people have also posted about their experiences:

http://budgetlightforum.com/node/63332

ToyKeeper
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I dunno guys. I’m having second thoughts.

I was doing some beamshots and — I can’t quite figure out why, but… something doesn’t look right.

It looks like it might be broken. Everything I point it at gets darker.

Are you sure you want this thing?

Juls Boo
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I’m interested put me down on the list

Juls Boo / LIGht HunTer

juls boo

Light Painting GIF done with various light. More here [ https://ello.co/julsboo ]

DBSAR
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ToyKeeper wrote:

I dunno guys. I’m having second thoughts.

I was doing some beamshots and — I can’t quite figure out why, but… something doesn’t look right.

It looks like it might be broken. Everything I point it at gets darker.

Are you sure you want this thing?

lol Big Smile That doughnut hole is perfect! that photo proves the degree of light distribution is close to that of the V2 prototype i built.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

7pot
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Looks fantastic! Please add me to the list.

cu42
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ToyKeeper wrote:

I dunno guys. I’m having second thoughts.

I was doing some beamshots and — I can’t quite figure out why, but… something doesn’t look right.

It looks like it might be broken. Everything I point it at gets darker.

Are you sure you want this thing?

Yeah, that beam has a big hole in it! Almost like someone put a big black puck on a Q8 lens!

Maybe its SOOO bright that it reads black like when you video record directly at the sun?
lol

teejay
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Reminds me of an article in some electronics magazine some 20ish years ago about dark emitting diodes. This is the first picture of them I’ve seen since then!

ViperAUG
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Sign me up for one, please! ty

mugs
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Interested in 2 please

SIGShooter
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Ignoring the initial load into my database today has by far the most additions, and the day still has 11 hours to go Thumbs Up

Top 18 days:

Count / Date
32 / 01-MAY-2019
11 / 29-APR-2019
8 / 28-APR-2019
8 / 11-APR-2019
8 / 15-APR-2019
8 / 13-MAR-2019
8 / 28-FEB-2019
8 / 24-APR-2019
7 / 21-FEB-2019
6 / 01-MAR-2019
6 / 26-APR-2019
6 / 06-APR-2019
5 / 10-MAR-2019
5 / 27-APR-2019
5 / 20-APR-2019
5 / 08-MAR-2019
5 / 17-APR-2019
5 / 08-APR-2019

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

DBSAR
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SIGShooter wrote:
Ignoring the initial load into my database today has by far the most additions, and the day still has 11 hours to go Thumbs Up

Top 18 days:

Count / Date
32 / 01-MAY-2019
11 / 29-APR-2019
8 / 28-APR-2019
8 / 11-APR-2019
8 / 15-APR-2019
8 / 13-MAR-2019
8 / 28-FEB-2019
8 / 24-APR-2019
7 / 21-FEB-2019
6 / 01-MAR-2019
6 / 26-APR-2019
6 / 06-APR-2019
5 / 10-MAR-2019
5 / 27-APR-2019
5 / 20-APR-2019
5 / 08-MAR-2019
5 / 17-APR-2019
5 / 08-APR-2019

I have noticed that the BLF LT1 Lantern project has brought in a large number of new members over the last year! I’m guessing because its opening up a project that is needed to fill a gap in the portable area lighting/lantern market that had little to offer when compared to the features & performance this light has. The increase in interest is staggering since Toykeeper began posting the first real photos of the factory sample prototype. In the mean time while i am eagerly awaiting for the arrival of the sample test unit so i can get to work and begin the vast testing and picking the bones out of it, I will have a drink at my bar with the original two design prototypes, as they await for their production version to be evaluated against. Big Smile

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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