Finally catching up to this thread.
Sorry to hear it. Fastest moving cancer. Got my mom 5 years ago; she was diagnosed around Thanksgiving and gone (in her sleep) by Christmas.It's come to my attention that Dr. Hsu was recently diagnosed with pancreatic cancer.
The head of Christie projectors was interviewed by Scott Wilkinson a few years ago and outlined the same approach for multiplex theatres. Once central control room with a cooler for the laser units for all the auditoriums, connected via fibre optics to the projector head in each auditorium. Since the projector heads would not contain the laser, they didn't need to be cooled down. Without fan noise, the projector would be quiet enough to be placed in the auditorium. The idea was to eliminate separate projection rooms and (get this) have nothing, not even expensive port glass, between the lens and the screen.An interesting approach to laser projection: a relatively compact projector head, connected via fiber to the bulky laser illumination sources and associated hardware.