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The following is a press release I was sent from ETC concerning the proliferation off knock of HPL lamps:
ETC MARKETING NEWSIt looks like our good Chinese friends have done it again!
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Alex Weisman Master Electrician - Pioneer Theatre Company IceWolf Photography Soup or art? "Crap happens, it is our job as technicians to fix the problem and see if it can be avoided. That does not mean yelling at actors or other crew people. We make mistakes, that is life. Welcome to live theatre, if it were the same every night it would be TV." ~Me Love CB? Upgrade to premium today! Last edited by dvsDave; January 10th, 2009 at 10:11 PM.. |
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Quote:
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For the beginners out there...
Besides bad karma, Why would you not want to use this knock off lamp? Artistic Problem Lighting instruments are carefully designed to match the lamp they will use. Although this lamp may fit the socket, it's filament structure is a different shape than an HPL. Placement of the brightest part of the lamp's filament at the exact focal point of the reflector is critical to getting good light from the instrument. Since this filament is a different shape, it won't be possible to bench focus the fixture properly (the process of positioning the lamp correctly in the reflector at the focal point). The end result of a different shaped filament is the light will not be evenly distributed from the reflector into the lens tube. You may have a weird bright or dark spot in the middle of the field of light that just won't go away. Safety Problem Since the fixture wasn't designed to work with this lamp there may be safety issues as well. The lamp may run hotter than a true HPL. This could lead to a wide variety of safety problems including: damage to the fixture, electrical problems, and even fire. It could also burn through gobos or gel extremely quickly. Only buy from an authorized manufacturer. If you are involved in purchasing through a bid process. Be sure you add the following to your specifications. "Lamps must be a 4 filament HPL made by one of the four authorized manufacturers: Ushio, Osram, Philips, or GE"
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Community College Technical Director Last edited by gafftaper; January 9th, 2009 at 02:01 PM.. |
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Yes, the instrument earned its name due to its lamp (source) having four filaments. Maybe earned isn't the right word, but that answers the question.
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Thanks, I'll be on the look out. Anywhere specific that I should be worried about in getting lamps from? I assume that any of the reputal dealers won't be selling these?
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Quote:
The two were invented together. I've always heard they invented the lamp first and then built the fixture to maximize it's potential. Anybody know if that part is true?
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Community College Technical Director Last edited by gafftaper; January 12th, 2009 at 06:13 AM.. |
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These might be floating around at some of those DJ lighting stores. I'd venture to say that you might want to be wary of the companies that already are bringing in Chinese lighting fixtures. (Except for where BillESC works; we have faith in him)
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Mike Nicolai Oconomowoc, WI, USA mike skims his id on twitter mike talks about things that matter to him on tumblr |
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