Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
I guess I can't see how the wavelengths would be a secret, it's not news that different emulsions react differently to different wavelengths. I mean, if you have a Metal Halide, you need to buy the proper bulb. That would be one of my first questions to a salesperson, "How am I supposed to expect it to work if you don't tell what the wavelength is so I can see if it will work with my favorite emulsions?" It's not like I'm about to build one and compete...Steve
Someone else might though...
Quote from: GraphicDisorder on February 16, 2016, 04:34:25 PMSomeone else might though...there's a LOT more to creating a UV exposure unit than just a wavelength. beam scatter, power, etc all play a role. I can understand manufacturers not wanting to divulge that information, but properly matching wavelength to emulsion is pretty critical if you want a solid screen, especially with these devices being very narrow wavelength devices (unlike a MH bulb which has a spectrum that's quite wide).
Quote from: jvanick on February 16, 2016, 04:54:52 PMQuote from: GraphicDisorder on February 16, 2016, 04:34:25 PMSomeone else might though...there's a LOT more to creating a UV exposure unit than just a wavelength. beam scatter, power, etc all play a role. I can understand manufacturers not wanting to divulge that information, but properly matching wavelength to emulsion is pretty critical if you want a solid screen, especially with these devices being very narrow wavelength devices (unlike a MH bulb which has a spectrum that's quite wide).Sorry I should have been more specific. Some may not want to give any info away as some ARE trying to copy to a T even.
Some food for thought...http://hid.venturelighting.com/Literature/Technical_Brief-MH_vs_LED_Lifetime_And_Reliability_v6.pdf
Silver based film will always outperform anything with a print head. Period.Dmax to dmin is amazing and resolution is far beyond what inkjet can ever get.But that is not a feasible option for many printers. Nor is it actually needed by the great majority of our industry.