Ophir 20C-A-1-Y Heatsink

[brendon7358]

I have read in many places that an Ophir 20C can read up to 5W and 10-20W heatsinked. Any idea where to get a heatsink or would someone be able to make one? How much would it cost? Would it just need a hunk of metal or a cooling fan as well? Thanks :yh:

 

[RedCowboy]

CLICK THIS > https://laserpointerforums.com/f70/cheap-diy-heat-sink-ophir-20c-89652.html

 

[BowtieGuy]

Wow, that's a great heatsink, Red! :yh:

The pics I've got here are one of the versions that Mrcrouse used to make, this one is a 3 sided one, he also made one that completely surrounded the sensor.

Unfortunately all of his photos with dimensions seem to be gone, as he used Photobucket.

 

[paul1598419]

In addition to the heat sink you will also need to increase the + and - rail voltages to read higher powers too. It is not as simple as just adding the heat sink.

 

[RedCowboy]

Here's another older project someone did, they say 5W is the limit, I really don't know.

DIY Laser Power Meter

 

[lasersbee]

That was member djQUAN.

Here's his thread he linked to...
https://laserpointerforums.com/f52/epay-3-pack-laser-lpm-results-84586.html

The way it is setup the max reading will
be 5W. There is no real heatsinking.

The OPHIR specs say 4Watts max without
additional heat sinking and a max 20W with
good heatsinking.

Remember the mass and surface area of
the head must be increased to get better
temperature stability and head cooling.

Jerry

 

[Hikke]

Cooling of OEM Sensors: Heat Sinking