homemade focusable triple XML 3000 lumen light (many picts, heavy!)

i have been building a new light which may be the improved version of the light
previously reported (the last parts of articles were lost in the crash).


a new light may be more compact, less heavy and more powerful.
this is interim report.

1.PLAN

LED: 3x Cree XML 1000 lumen
battery: 6x18650 Lithium (2p3s)
light control: PWM regulation using 12xAMC7135 and PIC microcomputer
heat control: 3mm thickness alumi plate + cheap alumi fins for PC
+ PC fan controlled with PIC microcomputer & thermosensor
lens: independently focusable 30-40mm diameter lens

2. MAKE PARTS & ASSEMBLE THEM TEMPORALLY

battery box

lighting board

LED on aluminum plate

focusable lens

move it by magnet

fin

cheap small alumi fins for IC

assembled

surround battery box with aluminum boards + fins

Re: homemade focusable triple XML 3000 lumen light

3. ELECTRICAL COMPONENTS

fan

tested some cheap & small fans

thermosensor

used S-8120C, its very small, easy to attach near the LED.

10bar LED

10 LEDs can be emitted by 4 ports (usually need 10 ports).

2x10bar LED can be driven. LED power level (red) & temperature (5G3Y2R)

check PIC working

PIC16F886 measures LED temperature & displays it, displays LED power level,
controls LED power with PWM, controls fan with PWM and lights red LED
when battery is low voltage.

Re: homemade focusable triple XML 3000 lumen light

This takes way to long too load. 3 min with a 16000kb/s line. How is it hosted?

Re: homemade focusable triple XML 3000 lumen light

This looks amazing! Well done!

Re: homemade focusable triple XML 3000 lumen light

I love these types of builds. Looking forward to the finished light!

Re: homemade focusable triple XML 3000 lumen light

Nos said:

This takes way to long too load. 3 min with a 16000kb/s line. How is it hosted?

Click to expand...

Loaded fine for me

Your build looks awesome!

Re: homemade focusable triple XML 3000 lumen light

sorry & thank you for the comments.

4. CURRENT REGULATION

my circuits:


my first circuit was A. It seemed to work well with 3s 18650 batteries not fully charged.


so i made up a light control circuit board.

But the one of XML was damaged at lighting with 3s2p fully charged batteries.
i did not understand the reason. i found out the similar problem report and was advised.
it may be thought that when the AMC7135 shut down the current, an excess high voltage broke the AMC7135 and resulted the bond wire damage due to massive current through XML LEDs.

The improved circuit is B (i removed a short-circuited AMC board). A 330 ohm register parallel to AMC boards diverts the current when the AMC boards are high impedance. it prevents AMC boards from excess voltage on them. Three diodes inserted in circuit make sure of voltage decline. they are removed after test.

finally i used a small LED and register as bypass of current.

this circuit works well for the moment.

Re: homemade focusable triple XML 3000 lumen light

5. COOLING SYSTEM


aluminum fins are spread all over the backside of base aluminum panel.


a fan controlled with LED temperature is attached under the battery box.
The wind from the side of the fan blows among fins.

6.SWITCH


main power switch is consisted of click type ball pencil and one reed switch.
power control switch is consisted of small plastic ring & 2 reed switch.

these can be controlled with finger of grip hand.

7. NEARLY FINISHED BODY


PIC board is in the black box.

FYI: all connection diagram

Re: homemade focusable triple XML 3000 lumen light

Very cool!

Re: homemade focusable triple XML 3000 lumen light

There are some clever dudes out there. :bow:

Re: homemade focusable triple XML 3000 lumen light

amazingg!!o.o

This, sir is intriguing.

Another crazy-stupid-but-in-a-good-way buld! That's cool!

thanks for the comments.

8. OPTICS

ive used the condenser lenses got from junk SLR camera lenses.

these are very clean, no chromatic aberration.
Three pair of magnets keep the lenses in the acrylic pipe.
they are moved by external ring with magnet.



the top lens has the largest diameter and focal length among three lenses (effective diameter:26-30mm. focal length about 35-40mm).

9. BEAM SHOTS


this light (3xXML) and DIY SST-50 focusable light

max defocus


max focus 1

distance about 15m

max focus 2



10bar LED shows power(red) & temperature near LED(green).

power was max. temp was 50-60 deg. C.
very easily recognized than character display.

Hanachan,
Another brilliant creation. Thank-you for documenting your work as you built this wonder.

Are you going to make a dive version of the focusable triple?

up video:



thank you, Linger.

Are you going to make a dive version of the focusable triple?

Click to expand...

maybe no. main issue is durability.
this light will be waterproof (not dive light).
im planning a simpler focusable dive light.

Awesome build. Cute schnauzer. Mojo is impressed too - wOOf!