with the āflip chipā technology a slice of the emitter is pretty easy as there are NO bond wires to worry about. You could try slicing with a good sharp razor blade , staying just above the phosphor layer. Then you cut straight down beside the main die and take off the outer layer of the phosphor to clean up the olive tint around the edges of the center of the beam.
Here is an example of the 70.2 in a ThruNite TC20 with a cool white 70.2 in it , but usually the end result is very similar with the 50.2 or the 70.2.
Before Slicingā¦
Not the greatest slice I ever done but here is the basic idea in the endā¦
Like robo819 shows above, dicing the phosphor off the substrate goes a long way towards eliminating the unwanted tint shift on the flip chip emitters.
When the dome is on itās somewhat difficult to see where the die actually is, but once the dome is sliced off itās much easier to see the actual die and make the vertical push cut down to the substrate, a flick outward then usually dispenses of the phosphor that is layered onto the substrate. I donāt do this so much for gaining throw as to rid the beam profile of the ugly tint shift in the aura. This is what I refer to as a slice and dice.
Built these 2 drivers (all 0603 components and legs bent in on tiny85ās)
Stacked them together, wired the Nitecore stock drivers switches and switch LED to them with 32AWG wire (first pic is first driver of stack up going in and being wired then second driver set down on top and wired)
Dual drivers tested and running, just waiting on mcpcb glue to dry to assemble it!
Edit teaser pic for now, video of running tint mixer light coming later once itās dark out.
Your pics load slow, I think because you insert them full-res. You set them to display a screen percentage so it displays good, but the page still loads the full file sizes.
You can upload them in smaller resolution
There are some resolution options on āAuto resizeā. I normally upload mine in 1024x768 and they open fine!
Besides this: AWESOME work!!! I wish I knew the things you and many other people know, machining, soldering, electronicsā¦
Great work!!! :+1:
I use flickr and although it is a pain to extract the links for use in inline images, they do offer links for a variety of smaller sizes of your uploaded picture.
Thumbnail Suffix Thumbnail Name Thumbnail Size Keeps Image Proportions
s Small Square 90x90 No
b Big Square 160x160 No
t Small Thumbnail 160x160 Yes
m Medium Thumbnail 320x320 Yes
l Large Thumbnail 640x640 Yes
h Huge Thumbnail 1024x1024 Yes
Also I found ārā makes 1456 x _, also keeping proportion. So even bigger than the āhuge thumbnailā
And I found another, āgā does 728x_ with proportion.
b:
āWhat did you mod today?ā
I could better say; āwhat did I destroy today?ā
Wanted to change the LEDs in de jaxman e2l for some LH351Dās.
First I desoldered the driver and wires.
Then I wanted to pry out the board.
I donāt know what type of glue they used but it doesnāt want to come outā¦
I lost my patience and went on a rampage, destroying the LEDs and led board.
And its still stuck in there.
Looks like Iām going to order a host and let this one sit for a while.