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Author Topic: Xenon lamp question Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 12-15-2004 09:00 PM                     Course, isn't LTI who bought out PerkinElmer (and also CFS), where PE was ORCON, whom took over Hanovia? We were never so glad to get rid of our last PE bulbs when the last one, which didn't give me any trouble and went to almost 4k hrs before dying. Only good thing that I did notice about PE bulbs is that the voltage run against the amperage was the lowest against the CHR and the OSRAM-and Osram/Sylvania being the highest using a 2kw bulb. I can crank up the amps to the maximun run on a PE and the value between volts and amps was still under the wattage output when they get the age on them. Marko, remember Larry from Elko, NV? He's with us now at the Nampa. - thx Monte  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 12-15-2004 09:18 PM                     quote: Monte L Fullmer Course, isn't LTI who bought out PerkinElmer No, LTI is its own entity. Strong distributes theor lamps which have been ok for us. Just a few returns. Christie continues to be our largest seller though, with Osram third. quote: Monte L Fullmer Marko, remember Larry from Elko, NV? He's with us now at the Nampa. Larry's a top notch guy... he's being wasted working for Real and he has my sympathy. Mark  |  IP: Logged Jason Miller Expert Film Handler Posts: 241 From: Little Rock, AR, Registered: Mar 2004 posted 12-15-2004 09:33 PM                    quote: Brad Miller Jason your numbers are way off. The Christie bulb will outlast all others. I got the pro-rated warranty info fromChristie's website: ChristieCXL50SC and as I said.. these are just warranty numbers. performance is different. I agree that Christie bulbs usually outperform other bulbs.  |  IP: Logged Matthew Bailey Master Film Handler Posts: 461 From: Port Arthur,TX Registered: Sep 2000 posted 12-15-2004 09:57 PM                     Can they design xenon bulbs with safety envelopes that contain glass fragments in case they explode? I remember looking at a labware catalog that had flasks & beakers that would contain glass & liquids if they shattered.  |  IP: Logged Ever Gonzalez Film Handler Posts: 29 From: San Diego, CA Registered: Oct 2004 posted 12-15-2004 10:55 PM                     We had a 2K LTI blow up at 31 hours I beleive. It was some rediculous small number like that. That was fun to clean up.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 12-15-2004 11:58 PM                     Be grand if they did develop some sort of containment device to capture the quartz when a bulb blows, but it would have to be a containment device that would allow all of the light go through, handle the extreme heat, adaptable for all consoles..et.al. like a digital projector's lamp system - all contained within a shielded containment device. It's just something that we all projectionist's have to live with- being scared out of our wits when a bulb blows and we're standing next to the console checking the focus, or watching the movie. I've had two of them blow while standing next to the console. One was in an old Xetron console (the spider that holds the front of the bulb didn't allow for expansion when the bulb got hot,causing a great amount of tweaking), the other was in a Reference console using a CXL-60. That big 6kw blew, yet didn't harm the mirror too much-just a scrape here and there. That 6k only had 900 hrs on it. quote: Mark Gulbrandsen Larry's a top notch guy... he's being wasted working for Real and he has my sympathy. True. He's already noticing that - the micromanagement syndrome that Nampa likes to operate with. He left NV for that theatre owner's moral tactics of operations. He'll tough if out though and play these stupid "games", but don't know right off how long. He's really going to turn around Nampa though, for this theatre was getting some bad heat from the plaza owners on getting a better management staff here, for we've had some pretty serious issues over here: gang shootings, parking lot break-ins, extremely unprofessional management operations here and what have you. It was time to get this place in order and Nampa feels that Larry can do the job....thx-Monte [ 12-16-2004, 01:54 AM: Message edited by: Monte L Fullmer ]  |  IP: Logged Mattias Ohlson Expert Film Handler Posts: 180 From: Falun, Sweden Registered: Mar 2003 posted 12-16-2004 05:11 AM                     How much overcapacity do you buy into your bulb. As the bulb ages it looses light output to perhaps 50 percent with xenon? In that case do you buy a bulb the initally can light up a bigger screen than you have so that it can meet standards at the end of its life. In doing so you run it light in the beginning and tougher at the end or?  |  IP: Logged Samuel Hynds Film Handler Posts: 50 From: Riverside, CA, USA Registered: Aug 2004 posted 12-16-2004 09:09 AM                     David, To get back to your question about the CX1600 - Can this lamphouse handle a horizonal lamp? Don't think so; there is not enough room inside this box to handle a horizonal system. This lamphouse should have a bowtie looking mirror, which is glass in nature. To convert this lamphouse from vertical to horizonal would require complete removal of everything inside (mirror holder and lamp holder, and to install a horizonal lampholder (with a reflector holder as well). You do get better life from you lamps when you burn them vertically, plus having not to rotate you lamp at half life.  |  IP: Logged Peter Hall Master Film Handler Posts: 314 From: London, UK Registered: Dec 2000 posted 12-16-2004 10:13 AM                        Does anyone in the US know whats happening with Superior Quartz - I know they have signed a deal to supply in the US under the MIT brand. We really like their lamps but are concerned on long term supply and support ..  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 12-16-2004 05:40 PM                     The bigger question is will MIT be around to supply those lamps from Superior ? Posts from and about MIT are non-existant lately which leads me to wonder..... I don't know anyone buying their equipment yet either...... Mark  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 12-16-2004 08:19 PM                     Sam the question wasn't to convert it to a horizontal system but to mount a horizontal lamp vertically and that is simple and fairly common solution  |  IP: Logged Aaron Sisemore Flaming Ribs beat Reeses Peanut Butter Cups any day! Posts: 3061 From: Rockwall TX USA Registered: Sep 1999 posted 12-19-2004 11:09 PM                     quote: Monte L Fullmer Course, isn't LTI who bought out PerkinElmer (and also CFS)... You are confusing LTI (Lighting Technologies, International, the lamp mnanufacturer) with LIT (Lighting Images Technology, the current owner of what's left of CFS). -Aaron  |  IP: Logged David Rigby Expert Film Handler Posts: 134 From: Chorlton, Manchester, UK Registered: May 2002 posted 12-23-2004 12:58 PM                     This turned into quite an educational discussion Thanks for all the info guys - everything I've ever read about vertical lamphouses suggests they're great for lamp life. I had wondered about changing to horizontal for ease of lamp availability but I really rather like my Cinemec lamphouse with its butterfly mirror, hence my thoughts on using horizontal lamps in it...my only conern besides feasibility was efficiency. Spoke to Robert at Robertfilm in Montreal and he seemed to think the good ol CX1600 was a decent enough lamphouse anyway and not horribly inefficient. Does Robert post on here at all? He's a knowledegable and very helpful guy David  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 12-23-2004 02:30 PM                     "he seemed to think the good ol CX1600 was a decent enough lamphouse anyway and not horribly inefficient" That should have a smiley at the end of that comment those lamphouses are very inefficient and definetly produce a very uneven light distribution  |  IP: Logged Darryl Spicer Film God Posts: 3250 From: Lexington, KY, USA Registered: Dec 2000 posted 05-04-2005 09:01 PM                    I have a question? We have been using Osram bulbs here (2500 and 3000 watt). My question is why does the 2500 watt bulbs have the funny looking wire leads coming off of both ends of the bulbs and the 3000's have the normal posative end lead for bolting down coming off one end?  |  IP: Logged

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