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RGB Project Completed

Anthony P

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Oct 7, 2018
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I purchased the RGB "White Light Engine" from holokid. After about a month I finally have it running. The diodes are blue PLT5 450B, green PL 530, and red Ushio HL63603TG. All are individually driven by LM317 CC custom tailored to adjust current from threshold to manufacture rated max. The green also has a CV source for the heater.
The module arrived with the red diode DOA. I purchased a replacement from DTR. With great effort, I was able to press it into its mount and secure the mount with Arctic Silver. The dichroic mirrors were very poorly aligned and non-adjustable. I, therefore, adjusted them anyway with procedures to test the patience if Jobe. Using dental probes, micro-tweezers, and some carefully placed dabs of epoxy, I was able to bring alignment into an acceptable level.
Please do not interpret this as a boo-hoo bitch session. The entire purpose of this project was to gain knowledge and experience in order to design a "good" RGB project. I now know that I want kinematic mounts that are easy to work with. I also gained much driver insight. The new project will use 3 Blach Buck drivers, PLTB 450B, NDG7475,and mitsu 500mW, all from DTR. I will mount everything on a plate with TECs and thermostats.

Now for the best part... pictures!

 
Last edited:

DTR

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Great work getting it back up and running. Looks great. Good luck on the new project.🍺
 

paul1598419

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Sep 20, 2013
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Nice job, Tony. I remember when you got it. Glad you were able to replace the bad diode and get it aligned. (y)
 




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