My first laser build, OSRAM PLTB450B in a 14500 Flashlight Host

[Laserin]

My name is Ikhwan, I am from Indonesia, I have joined LPF since a year ago, and I was inspired by Styropyro laser to make a laser pointer in the host 14500 flashlight. I made a laser pointer using Osram PLTB450B, 17mm boost driver, G7 lens, battery 14500, and a host flashlight which costs less than half a dollar because I bought it at a domestic online store (it costs Rp. 6,500.00 = $0.44, exchange rate of 1 dollar to Rp. 14,886.00)

First I press the laser diode into the module
Then I put it in a copper heatsink measuring 17.8mm×20mm with a hole with a diameter of 11mm according to the size of the flashlight hole (I turn manually, not CNC, so the results are a bit messy) because the hole is 11mm, I have to turn it a little so that it fits into the heatsink (I turn it first before I attach the laser to the module),after that I soldered the cable of laser module and soldered the cable from the driver direction.
Actually this driver has a potentiometer and is claimed to be able to reach 1.8Amperes, but my multimeter can only read currents up to 250mA and there is no resistor at home
because the host flashlight is small, about 19mm×95mm, so there is no pill driver, instead there is a spring and black bulkhead as space for cables which I then cut in half to fit the heatsink.
After that I cut the cable a little and then I connected the cable from the laser and driver, then I closed it with a heat shrinking tube.

Then I put everything in the host flashlight then give glue a little so that it sticks strong and become a burning laser pointer.


because of my limited funds, I ended up using a cheap 14500 battery, the important thing is that it can light up

After testing, this laser is very powerful, it can burn wood from 15 feet away and can light a match from the wrong way

 

[thanhtung]

hi from vietnam! good job bro!

 

[Laserin]

hai dari vietnam! pekerjaan yang baik saudara!

Thanks

 

[Laserin]

I want to ask, can lasers with opposite colors (Red with Cyan, Green with Magenta, and Blue with Yellow) produce a white laser?

I saw a video from youtube about a 505nm 150mW and 660nm 300mW laser whose light is combined with an almost white color, what happens if a red laser (638 or 660) beam is combined with a color of 490nm and above(Cyan)?

 

[Laserin]

and this is a photo from my laser For those who ask why the 445/450nm laser looks purple when photographed, it's because the camera can't capture images with accurate colors, I took laser photos with my smartphone and the colors are accurate,I also compared the main camera mode with the ultrawide camera and the results are different (my ultrawide camera is much worse quality than the main camera)

and this is the laser beam if you don't have a lens attached

 

[Sowee7]

I want to ask, can lasers with opposite colors (Red with Cyan, Green with Magenta, and Blue with Yellow) produce a white laser?

I saw a video from youtube about a 505nm 150mW and 660nm 300mW laser whose light is combined with an almost white color, what happens if a red laser (638 or 660) beam is combined with a color of 490nm and above(Cyan)?

if you have a 589nm laser (yellow-amber) and combine it with a 488nm laser (light-cyan) you will get a spot that appears white

 

[Laserin]

jika Anda memiliki laser 589nm (kuning-kuning) dan menggabungkannya dengan laser 488nm (cahaya-sian) Anda akan mendapatkan tempat yang tampak putih

Thank you for the information

 

[Laserin]

if you have a 589nm laser (yellow-amber) and combine it with a 488nm laser (light-cyan) you will get a spot that appears white

it is an expensive solution, and the diameter of the yellow DPSS laser beam with different Cyan Diodes makes the beam not blend perfectly, there may be a Cyan Laser whose wavelength reaches 495nm