8000 Lumen LED Projector Flashlight Project

Flashlight Modding and DIY Parts
1

http://varikonniemi.wordpress.com/2012/02/25/8000-lumen-led-projector-flashlight-project-part-2/

So this is my flashlight build with a 100W current-regulated LED. The next step in completing this is to install the projector reflector arriving any day now in the mail, and then to correct the fans as seen in the scematics.

I thought this project might interest you, so here you are ;)

Comments and critique welcomed ;)

2

My first "comment or suggestion" would be to translate everything into English. :)

I really like the idea - please share more.

EDIT: thanks for the translation, and WELCOME to the forum !!!

3

sorry, i was refered to here from a finnish forum, so i copied the text from there and then translated it. You were fast to notice since this only took minutes :)

4

Once again, welcome - and thanks for registering over here.

This project is of great interest to me and others. I look forward to seeing your results.

5

These kinds of projects are eagerly followed around here . . .

thanksforsharingFoy

6

Thanks you all, you are way too kind :)

7

I have an old projector that is looking for an led mod too..I'm interested as well .so thank you for posting this.

welcome to BLF

8

Welcome!

Thanks for posting,

can't wait for the final result.

9

Welcome, you seem to found your way here :)

10

you mention that someday you'll correct the fan's dependence on dc voltage. I assume you mean as battery voltage goes down - could you elaborate?

11

As the Boost Converter accepts an input voltage of 10-30V, it would be possible to use any DC power source in that range to power the flashlight. Currently the fans are just connected in series over the battery voltage (22.2V) so they get a somewhat nominal 11V per fan.

If the battery voltage is not 22V, they will either stop, run slower, or burn from over current.

As you can see in the connection diagram, i am planning to regulate the voltage to the fans, so they also always work at 12V independent of input voltage. This will add one regulator, but will get rid of the two large capacitors.

I am also planning to attach a DC input socket, that can be used instead of the battery to power the device.

The last modification i am planning to do is to attach a tripod-mount to the bottom of the flashlight, so it can be easily screwed on to any camera tripod for a static light source.

12

and to think .. i need only 800 lumens for my old 4805 screen play projector. wonders... and ponders

13

The Bigger the Better, right? :D

OFF TOPIC:

Here are some images of my first LED build, a baseball cap light with 3200 Lumens but no projection lens, so it is a floodlight with 140 degrees of emitting angle. The house seen at the back of the image is 80 meters away, and if one would be standing in front of the wall, a shadow would be cast on the wall ;)

14

The bigger the Better.. funny..

I once had a 69 Kingswood Chevy Wagon ( a lead sled lowered wont mention the waterbed in back nor the deep gloss black finish ).. with >> "The Bigger the Better" in lavender letters across the top of its windshield. and yes Bigger is nearly always better..

keep up posted. preferably with how toos.. where to puchase and schematics pictures and what not..... .. thanks .. watches this one..

15

Most all parts (expensive, modern) are bought of ebay. The rest are random stuff i have in my collection of salvaged parts from components rescued from going to the junk yard.

There is a scematics picture at my blog, but i will update it with a cleared up final version once the build is final ;)

16

thanks for the descrption, I've got a lot to learn about circuits.

I have a 4805, too. A power failure toasted the bulb and made the light tunnel mirrors collapse. Got a new bulb, fixed the tunnel and its still going strong (and now runs off a ups lol).

17

I bet gluing those mirrors back together wasn't fun. I'm on my second bulb. Only problems I have with it is the color wheel wines a bit on startup.