Mix 532nm with 660nm for psuedo 640nm?

[dnar]

I have been looking at colour mixing, to my mind you could mix a few % 532 with 660 for a brighter red.

Has anyone tried this? Am I barking up the wrong tree?

[Doc]

Adding a TINY bit of 532 does make the beam more orange, but you'll have fun trying to make a DPSS green modulate consistently, reliably and at a repeatable level just above threshold.

[logsquared]

someone correct me if I am wrong but i don't think you can gain brightness by adding different wavelengths.

[badger1666]

they are on about percieved colour not brightness
but a small amount brightness does come with mixing
works fine with bluray why not red
but if your lasers can cope with the mixing is a different question

[logsquared]

I don't think its possible to make any hue of red brighter than the original 660nm by adding any amount of green. I think adding enough green to change the perceived brightness would put you in the orange or yellow range.

[tocket]

Considering you need about 4 mW of 532 nm for every watt of 660 nm to get pseudo-640, the gain in brightness will be marginal. The luminance will be increased by around 5%, but the increase in apparent brightness should be less than that. Partly due to a negative deviation encountered when mixing colors on the red-green line.

No, I'm afraid the real 640 nm light is far superior, with about 3 times the luminance of 660 nm.

[dnar]

Considering you need about 4 mW of 532 nm for every watt of 660 nm to get pseudo-640, the gain in brightness will be marginal. The luminance will be increased by around 5%, but the increase in apparent brightness should be less than that. Partly due to a negative deviation encountered when mixing colors on the red-green line.

No, I'm afraid the real 640 nm light is far superior, with about 3 times the luminance of 660 nm.

My original thought was to use a small OEM type module (10-50mW say) for this purpose and Dychro combine R+G. This would be more controllable than using your main G.

Thanks Tocket, smacked in the head with the reality stick!

[aijii]

or you could just mix it with 640nm instead

[dnar]

or you could just mix it with 640nm instead

.

[White-Light]

or you could just mix it with 640nm instead

1mw 660nm to 600mw 640nm

Think of the saving!