RGV Ratios

[lamborgini8]

I know I made a topic a while back about the ratio between RGB to get a good balence and it was along the lines of G1:B2:R4 but what about blue ray violet? What kind of balence would work best between RGV?

[White-Light]

Chroma suggests:

532: 1
650: 2.25
450: 4

Those are watt values I entered to make the maths easier. I don't know if this holds true at lower powers or if its accurate. Allthatwhichis seems to think the result for his projector isn't truly accurate in a way that suggests Chroma might be suggesting too much red for some mixes.

[Doc]

Looking at Tocket's guide; it depends on the wavelength of your red, but in the region of 4.2 x green.


Tocket's guide.

[White-Light]

The Chroma figures would appear to roughly match the guide.

[lamborgini8]

Hmm right, I think this is going to be quite difficalt then...

Minimum I want is 100mW green but that would be 100mW green, 200mW red and 400mW blue ray rounded up? The green and red would be ok but 400mW of blue ray could be somewhat a problem... Like if I combined two blue rays it would still not reach the 400mW and how would I connect TTL/Analogue up to that as one single colour/laser?

[Doc]

You could cut and stack the beams as is done in red modules. I would guess that you'd need individual drivers, or at least 2 of Rob's (Stanwax) dual drivers.

[danielbriggs]

but 400mW of blue ray could be somewhat a problem... Like if I combined two blue rays it would still not reach the 400mW and how would I connect TTL/Analogue up to that as one single colour/laser?

400mW could be done as follows: (excluding drivers, mounting and optics)
- x4 PHR-803 Diodes (~$13 each)
- x2 GGW Diodes (~$35 each)
- x1 8x Diode (~$250+ each)

I'm going for option 2

Dan

[lamborgini8]

You could cut and stack the beams as is done in red modules. I would guess that you'd need individual drivers, or at least 2 of Rob's (Stanwax) dual drivers.

400mW could be done as follows: (excluding drivers, mounting and optics)
- x4 PHR-803 Diodes (~$13 each)
- x2 GGW Diodes (~$35 each)
- x1 8x Diode (~$250+ each)

I'm going for option 2

Dan

Good idea!

Advantage is I can build that before I begin building the scanner which also means I can have some 400mW blue ray fun at the same time.

[Doc]

Good idea!

Advantage is I can build that before I begin building the scanner which also means I can have some 400mW blue ray fun at the same time.

Not for very long though, if you have the same sort of luck I've had with BR diodes

Maybe add some Lasorbs to the shopping list?

[danielbriggs]

Good idea!

Advantage is I can build that before I begin building the scanner which also means I can have some 400mW blue ray fun at the same time.

If you're feeling flush, go for x4 8x diodes (you should easy get 1.5W of 405nm )

Not for very long though, if you have the same sort of luck I've had with BR diodes

Maybe add some Lasorbs to the shopping list?

I know lots of people have blown diodes, especially blu-ray down to ES charges. But I can honestly say in the many dozens I've dealt with, not a single one has died due to ES issues. *touch wood*

Dan