Banner
Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1

TOPIC: Xenon Lamps

Xenon Lamps 01 Aug 2001 18:39 #1899

Does anyone know what wattage is commonly used in drive-ins, if they is a common wattage?

I know 35mm can't handle 7000 watt xenons, but can 35mm handle 6000 watts?

Do 5000 watts exist?

Thanx!

Andy
Since 1987
The administrator has disabled public write access.

Re: Xenon Lamps 01 Aug 2001 22:47 #1900

I had two consoles at the 24 screen that were 7000 watts so 35mm can handle it. The machines had a double shutters. They then changed to a different projector head after about six months that had single shutters and still had no problem with the 7000.
They changed because the other machines were single lens and they should have been turrets.
The administrator has disabled public write access.

Re: Xenon Lamps 02 Aug 2001 01:01 #1901

  • Ken Layton
  • Ken Layton's Avatar
  • OFFLINE
  • Platinum Boarder
  • Posts: 866
  • Thank you received: 4
  • Karma: -1
Most drive-ins typically use a 4 to 4.5k bulb. Three phase rectifiers are normally used with that high of wattage lamphouse.
The administrator has disabled public write access.

Re: Xenon Lamps 02 Aug 2001 08:54 #1902

  • John Pytlak
  • John Pytlak's Avatar
  • OFFLINE
  • Platinum Boarder
  • Posts: 891
  • Karma: 0
The nominal xenon lamp sizes available vary with the manufacturers, but range from under 1000 watts to 7000 watts for 35mm use.

With the larger lamps, it is especially important that the lamphouse be properly aligned and focuses, so as not to produce a "hot spot" on the film that will cause film damage and illumination non-uniformity on the screen. Efficient heat filters (dichroic or "heat" mirrors) should always be used to reduce the amount of infrared energy. Water-cooled gates are usually used with larger lamps to keep the gate from becoming burning hot.

Lamps as large as 7000 watts are sucessfully used for 35mm in many theatres and drive-ins.

Here is a link to one vendor who carries a variety of xenon lamps from various manufacturers, just to show the wide range of lamps available:
http://www.xenonbulbs.com/equipment-list.asp?category=bulbs&subcategory=xenon%20bulbs

Kodak'a website has information on heat damage:
http://www.kodak.com/US/en/motion/newsletters/reel/fall97/pytlak.shtml
http://www.kodak.com/US/en/motion/newsletters/reel/winter97/projection.shtml

John P. Pytlak, Senior Technical Specialist
EI Worldwide Technical Services
Research Labs, Building 69
Eastman Kodak Company
Rochester, NY 14650-1922
Telephone: 716-477-5325 Cell: 716-781-4036 Fax: 716-722-7243
E-Mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Website: http://www.kodak.com/go/motion
John P. Pytlak, Senior Technical Specialist
Customer Technical Services
Entertainment Imaging
Research Labs, Building 69, Room 7525A
Eastman Kodak Company
Rochester, NY 14650-1922
Telephone: +1 585-477-5325 Fax: +1 585-722-7243
E-Mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Website: http://www.kodak.com/go/motion
The administrator has disabled public write access.

Re: Xenon Lamps 02 Aug 2001 08:57 #1903

  • John Pytlak
  • John Pytlak's Avatar
  • OFFLINE
  • Platinum Boarder
  • Posts: 891
  • Karma: 0
duplicate posting deleted

[This message has been edited by John Pytlak (edited August 02, 2001).]
John P. Pytlak, Senior Technical Specialist
Customer Technical Services
Entertainment Imaging
Research Labs, Building 69, Room 7525A
Eastman Kodak Company
Rochester, NY 14650-1922
Telephone: +1 585-477-5325 Fax: +1 585-722-7243
E-Mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Website: http://www.kodak.com/go/motion
The administrator has disabled public write access.
  • Page:
  • 1
Time to create page: 0.160 seconds
attraction attraction
attraction
attraction
attraction
attraction