I'm more into traffic signals, but my light bulb collecting tends to run towards quirky modern stuff, among the things I have are a complete set of the dichro-color floods, a lot of weird early LED retrofits, A NOS GE Halarc, and some low pressure sodium stuff. I do have a complete set of the FEIT colored CFL (although not every packaging variation), think there's a photo on my gallery someplace.
You would like the bi-annual Light Sources Technology conference, when the world's lamp engineers come together to share ideas and latest discoveries. Some years ago when it was held in Eindhoven that event introduced a green-amber-red traffic light system to let speakers know if the end of the timeslot to present their lecture was close to ending, or even over-run. Of course, it was an LED traffic light. Which was not inappropriate because the conference began with presentations on LED technology. On the second or third day when Discharge lamp technologies came on the agenda, one smart guy from Philips ran down to the stage during the break and changed the LEDs to coloured spiral CFL lamps which caused great amusement and was well appreciated by all the traditional lamp engineers :-)
The first coloured fluorescent lamps were indeed comercialised by GE-Mazda in USA. In fact the colours were launched before white types - the original application of fluorescent lamps was nothing more than to provide brighter and more saturated-colour alternatives to Lumiline coloured incandescent linear lamps. I believe the first serious effort to market coloured CFL lamps came from Osram which introduced Dulux S 9W and 7W lamps in red, yellow, green and blue colours around 1982-83. The yellow was quickly dropped because it was basically same as the warm white type. Tungsram was swift to launch its own equivalents of those, and Tesla and Narva also developed them but those are very rare. Next Thorn launched its 2D 16W in a selection of seven colours of red, peach, lemon, green, blue, lilac and magenta. The only CFLi colours I am aware of are the Narvatronic spiral lamps which were launched in 1995 in a range of red, yellow, green and blue. Those are not too difficult to find, but they made so many different versions and wattages that still after many years I did not manage to find the set of colours in the same type! Of course, the Chinese manufacturers then copied these and they seem to have been well promoted in Americas. During one of my early visits to China I remember the factory of Zhejiang Yankon was the primary manufacturer of these types, above all exporting to Feit and GE in USA. They also had Blacklight, Blacklight-Blue and Germicidal UV-C types.
