I’m looking for a few good questions for the LED manufacturers’ panel

Very nice blog. I totally agree with your thoughts.

What standards will there be for spectra; particularly, can I order a particular amount of UV for secondary phosphors, a 10...100W warming near-IR LED, and ones with optimized blue-green CRI split from the peachy and yellow? How about a standard for ordering gratings in the packaging lenswork, either to skip on opalescnce in reflectors and diffusers, or to project in-profile and/or in patterns and as masks. Optic lattices, e.g. to mellow out the green spectrum might be another sort of thing I want down near the die. How do I keep from breaking the packaging tool workflows? Is there a trivial way to detect whether the LED maker or I have extinguished the UV component in shipping products? I want to switch it on at times for titania cleaning and antibacterial sales bullets when the user's not in the direct light path an off when they come to. Okay, that's really compliance, but there are sensibilities too. Can I spec polarizations in some upcoming series? It's for indirect lighting. If With set project funding first, they would not lose mass over this. Maybe that was what the 5mm packages weighed or the brown light prototype.

Will Asian companies get into the market - copy the big 4 guys products (cree, Lumileds, Osram and Nachia) and force prices down? Just like every part of the semiconductor industry companies will tell you "we cant possibly reach X or Y price point, thats below the cost to make them" then China steps in. They will do it with or without help from the big boys and in a few years will it be like the rest of the industry and we will have lower priced Asia suppliers who are just as good and perhaps even counterfeit products that you cant tell the difference? How will they react? And dont let them say legal action - it does not work in Asia - the courts favor the asia producers.

If we want to use the LED as a "flash" replacement, we need high instantaneous luminance but low average wattage. Is there a way to optimize the desing of e.g. a white LED for this application? Fat wire bonds, bigger thermal block .... etc

For power supply design, tight voltage binning is beneficial in determining peak voltage loads. Why do some manufacturers bin on voltage and others don't?

1. LED Digital Projectors use Red, Green, Blue, but high end photo printers also add light cyan and light magenta. Would LED projector image quality improve if additional parts of the spectrum were 'filled in' with additional emitters? ~~~ 2. What is the constraint on building progressively shorter wavelength LEDs? The shortest wavelength LED is presently 240 nm (s-et.com). 'Vacuum' and 'Extreme' UV parts of the spectrum are below 200 nm and 120 nm, respectively. Vacuum UV is a useful part of the spectrum for photochemistry. ~~~ 3. It should be possible to create a 'brown' LED for UPS and candy company counter displays. Would the unit costs be all that different from pink and purple ones?

How about a question on pricing? These guys never want to discuss HB LED pricing.