- Joined
- Feb 25, 2010
- Messages
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- 113
Well...." Down the Rabbit Hole " AGAIN !!!! OK....I decided to do a little experiment with an old / unused 50mW 532 DPSS unit I had.
I have not really been satisfied with the color generated by combining the 520nm and the 638nm Diodes. I just assumed that I could get to a nice Lime green ( Chartreuse) color....by combining these two lines !!!
Diode combining delivered such a great result on the Cyan Cannon build.....a slow and smooth mixing of Green and Blue....to land right in the Cyan colour area. Well...This is NOT working out with the 520 and 638 line.
SO....we start with a "Traditional Christmas Green" …. ( 520nm)….and when you start mixing in the red ( 638nm )….well there is a very, very small sweet spot.....where you get what looks what is equal to a 532nm line....then....BAM....a too bright....washed out yellow !!!
Trust me....I have mixed and mixed....and mixed.....and that Lime green ( Chartreuse) color …. is just NOT there !!!
SO....for some reason...I decided to align the 532nm Far Feld spot....with the Red only Far Field spot....Viola !!! Lime Green= Chartruse !!
SO....for anyone that gives a Rat's ASS....the door to Lime Green ( Chartreuse )…...IS 532nm + 638nm !!!!
NOW the problem is...….the size of the 532nm 500mW module....really hogs up length !!! TOO much length....by about 21mm.
I got 10 pounds o'shit….in a 8 pound bag !!!! This design was NOT set up for the size of a 532nm Module......SO....NOW WHAT !!! ?????
HHmmmmmm ????? I will likely morph over to a Cyan Cannon II build....which CAN be done.....and start over on the Chartreuse Corrissication in early 2019 !!!
Sometimes.....ya just gotta do what makes sense !!!.....and live to try again....another day !!!!
CDBEAM
One final thought.....UNLESS....Unless.....the beam divergence on the 532 module can equal a smaller beam divergence on a single mode Red....SO....the Cylindrical lenses can be eliminated.......hhhhmmmmmm ??????? Maybe.....and let the BE do the final divergence reduction ??????????…..…...In my best " Young Frankenstein " voice....." IT COULD WORK " !!!!!
Maybe.....still get close to 1W out the Front Door !!!!
OH...And YES Chris....the distance from the 2mm EFL.....to the PCV lens ( First Cylindrical ) DOES act on the Far Field beam divergence!!! BUT...in a Hand Held Build....well....one has very, very little room to move things around !!! IIRC.....a greater distance = less Far Field divergence...but....who the hell has room for that !!!!...close I can do !!! Distance....not so much !!!
I have not really been satisfied with the color generated by combining the 520nm and the 638nm Diodes. I just assumed that I could get to a nice Lime green ( Chartreuse) color....by combining these two lines !!!
Diode combining delivered such a great result on the Cyan Cannon build.....a slow and smooth mixing of Green and Blue....to land right in the Cyan colour area. Well...This is NOT working out with the 520 and 638 line.
SO....we start with a "Traditional Christmas Green" …. ( 520nm)….and when you start mixing in the red ( 638nm )….well there is a very, very small sweet spot.....where you get what looks what is equal to a 532nm line....then....BAM....a too bright....washed out yellow !!!
Trust me....I have mixed and mixed....and mixed.....and that Lime green ( Chartreuse) color …. is just NOT there !!!
SO....for some reason...I decided to align the 532nm Far Feld spot....with the Red only Far Field spot....Viola !!! Lime Green= Chartruse !!
SO....for anyone that gives a Rat's ASS....the door to Lime Green ( Chartreuse )…...IS 532nm + 638nm !!!!
NOW the problem is...….the size of the 532nm 500mW module....really hogs up length !!! TOO much length....by about 21mm.
I got 10 pounds o'shit….in a 8 pound bag !!!! This design was NOT set up for the size of a 532nm Module......SO....NOW WHAT !!! ?????
HHmmmmmm ????? I will likely morph over to a Cyan Cannon II build....which CAN be done.....and start over on the Chartreuse Corrissication in early 2019 !!!
Sometimes.....ya just gotta do what makes sense !!!.....and live to try again....another day !!!!
CDBEAM
One final thought.....UNLESS....Unless.....the beam divergence on the 532 module can equal a smaller beam divergence on a single mode Red....SO....the Cylindrical lenses can be eliminated.......hhhhmmmmmm ??????? Maybe.....and let the BE do the final divergence reduction ??????????…..…...In my best " Young Frankenstein " voice....." IT COULD WORK " !!!!!
Maybe.....still get close to 1W out the Front Door !!!!
OH...And YES Chris....the distance from the 2mm EFL.....to the PCV lens ( First Cylindrical ) DOES act on the Far Field beam divergence!!! BUT...in a Hand Held Build....well....one has very, very little room to move things around !!! IIRC.....a greater distance = less Far Field divergence...but....who the hell has room for that !!!!...close I can do !!! Distance....not so much !!!
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