Film-Tech Forum ARCHIVE: Hanovia 1kw bulbs

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Posted by Jeff Knoll (Member # 1145) on 08-09-2004, 04:48 PM:

I was able to purchase a bunch of new/old stock 1KW Hanovia bulbs (type 977B0010) for real cheap. They are all sealed in their boxes and new - well not really "new" but unused/unopened and 11 years old (they were apparently manufactured in 1993).

My concern is that they do look smaller (the envelope does - they are the same length) than the Osram ones we are using now. There are no specs in the boxes and I cannot find anything on the net. Does anybody have experience with these bulbs? Can I use these in the place of an Osram 1000W/HS??

Thanks!

Posted by Aaron Sisemore (Member # 145) on 08-09-2004, 07:58 PM:

If they are the same wattage and fit the same way physically, then they should work fine.

The envelope size shouldn't matter if the rest of the mechanical dimensions match.

Posted by Tony Bandiera Jr (Member # 2365) on 08-10-2004, 01:38 AM:

Be careful with these, Hanovia bulbs weren't the best quality and prone to failure. (No ignite/exploding) Had some locations in late 80's toss 'em because of the problems.

Someone here with more experience with them recently could tell if that vintage was better/worse.

Posted by Dean Kollet (Member # 1789) on 08-10-2004, 02:01 AM:

was 1993 a Vintage year...I don't recall

Posted by Steve Guttag (Member # 268) on 08-10-2004, 03:54 AM:

Hanovia lamps were not the same size dimensionally as other lamps of the same wattage. The stems were different diameters and the lengths were different. As I recall, the 1KW lamp was particularly small on all dimensions for 1KW lamps. However, that particular lamp was one of their best.

Steve

Posted by Dennis J. Losco (Member # 1374) on 08-10-2004, 07:50 AM:

The lamp you are questioning is a Mercury Xenon lamp,not a straight Xenon lamp . Do not use this in your projector as a replacement for the Osram 1000WHS.

Posted by Jeff Knoll (Member # 1145) on 08-10-2004, 09:28 AM:

Wow - that is a true "range" of opinion!

What is the difference between a mercury xenon lamp and a straight xenon one?

Thanks for all the replies!

Posted by Dennis J. Losco (Member # 1374) on 08-10-2004, 10:24 AM:

The difference is in the spectrum.

A xenon lamp produces wavelengths in the visible spectrum close to daylight. A mercury-xenon lamp produces wavelengths in the ultraviolet spectrum. A xenon lamp also has a smaller and higher intensity hot spot than a Mercury-Xenon lamp.

Mercury lamps are used in UV curing and other scientific applications.

Posted by Gordon McLeod (Member # 33) on 08-10-2004, 11:07 AM:

Also is not the rectifier current limiting and ignition requirements diferrent between a xenon and a mercury xenon

Posted by Jeff Knoll (Member # 1145) on 08-10-2004, 11:42 AM:

Odd, this is identified on the box as a "theatre bulb" - not an industrial/scientific product.

The operating current is stated as 28.5A and the operating voltage is at at 36.0V

Posted by Gordon McLeod (Member # 33) on 08-10-2004, 01:33 PM:

"he operating current is stated as 28.5A and the operating voltage is at at 36.0V"
that sounds very wrong are you sure
a 1K xenon is normally 25v and 40amps

Posted by Andrew Shingleton (Member # 2257) on 08-10-2004, 04:51 PM:

The specs for the Osram XBO 1000W/HS OFR we're currently running is 19V with a rated current of 50A (current control range of 30 - 55A).

Posted by Dan Lyons (Member # 1454) on 08-10-2004, 05:45 PM:

What kind of theatre is running 1k lamps?! [uhoh]

1k is great for a home screening room with a small screen, but theatrical? What size screens do you guys have?

danny

Posted by Matthew Jaro (Member # 1786) on 08-10-2004, 07:45 PM:

Even in my screening room, I run 1.6 KW lamps

Posted by Jeff Knoll (Member # 1145) on 08-10-2004, 08:18 PM:

We run 1600 watts in 3 of our four screens. We use 1KW in the three smallest - 23ft throw.

Posted by Aaron Sisemore (Member # 145) on 08-10-2004, 11:15 PM:

quote:
What kind of theatre is running 1k lamps?!

Both screens at our soon-to-close Clearlake Twin (around 23'6"x10' with an approx. 45' throw) have 1K Christie CK10 consoles... Underlit as hell, but amazingly still watchable (we had no control over any upgrades as the building owner owned the equipment)

Cinema West's company screening room (12' wide with about a 35' throw) runs a 1K bulb in a Strong Lumex and its dazzlingly bright. [Smile]

-Aaron

Posted by Andrew Shingleton (Member # 2257) on 08-11-2004, 05:21 AM:

Our 1K is in the theatrette - the rest range from 3K to 7K. A 1K in our theatrette is more than enough light for the screen. [Smile]

Posted by Dennis J. Losco (Member # 1374) on 08-11-2004, 07:54 AM:

Yea that's odd the packaging says Theater bulb! The spec for the 997B0010 is 1000Watt, 65 Volts@15.5amps Oz free quartz.

The part number you are giving, is it off the lamp itself or off of the packaging. Maybe somebody put the lamps in the wrong boxes over the years.

If you are really weary, I have the guys who made the lamps here at my facility, they could test the lamps and correctly let you know what they are.

If possible you could just post a photo of the lamps and I could also correctly identify them.

908-454-1700 Den JR

Posted by Jeff Knoll (Member # 1145) on 08-11-2004, 09:29 AM:

The part number is on the box, warranty insert and engraved in the metal contacts on the bulb. Also, the packages were factory sealed. All five bulbs are identical.

Posted by Dennis J. Losco (Member # 1374) on 08-11-2004, 11:14 AM:

Well Jeff, Hanovia possibly was just shipping in generic boxes for all of there short arc lamps. This lamp definitely is a industrial lamp. We sell them to dealers for pretty good money. There are some dealers that would purchase them from you : Atlas,Bulbtronics, Bulbworks are a few that would possibly buy them.

Posted by Ron Yost (Member # 1850) on 08-11-2004, 11:38 AM:

Are the seals still good in 10-year-old Xenon bulbs? I've 'heard' they eventually leak. Probably a booth myth, but is there any truth in it?

Ron Yost

Posted by Dennis J. Losco (Member # 1374) on 08-11-2004, 01:46 PM:

If the bulb is manufactured or sealed properly, there is no shelf life. They should stay in tact forever. Although the lamp may become more difficult to strike. Occasionally if a lamp sits on the shelf longer than a year we will reburn the lamp here to ensure there is no striking difficulties for the customer.

Posted by Ron Yost (Member # 1850) on 08-11-2004, 03:37 PM:

Thank you, Dennis .. that's comforting to know. [Smile]

Ron Yost

Posted by Mike Croaro (Member # 3123) on 06-21-2005, 08:22 PM:

Aaron Sisemore wrote:

"Both screens at our soon-to-close Clearlake Twin (around 23'6"x10' with an approx. 45' throw) have 1K Christie CK10 consoles... Underlit as hell, but amazingly still watchable (we had no control over any upgrades as the building owner owned the equipment".

Hi Aaron:

I was reading thru some old threads and came accross your comment here. Why does it matter that the equipment was owned by the landlord? Why would he (or any landlord) object to your firm upgrading the equipment?

Just curious,

Mike Crorro

Posted by Aaron Sisemore (Member # 145) on 06-27-2005, 03:00 AM:

I believe that the lease expressly specified that the booth equipment that was there had to remain in operable condition so as to restore it to its previous configuration if we ever vacated the property.

When we installed digital sound before we reopened the location after upgrading the seats and lobby (upgrades that we were actually allowed to alter the existing 'equipment' on), we had to leave the original mono amplifiers and center speaker in place, and wired (actually the solar cells had to be obviously disconnected to install stereo, but the wiring was sitting there at the ready, as were the mono cells, sitting in a cabinet.

There was no way that the consoles were getting upgraded.

We vacated the Clearlake in the fall of 2004.

We sold the sound equipment that we installed to the landlord (I did not have to go back and re-connect the mono system that way)

We also sold them another 1K Christie console (exactly like the ones they already have) for parts.

-Aaron

Posted by Scott Norwood (Member # 30) on 06-27-2005, 08:31 AM:

On the subject of theatres using 1k lamps: we recently (last year) installed a pair of Super Lume-Xes with 1kw lamps in the upper theatre (former balcony) of the Columbus Theatre in Providence, RI (see the photo gallery for pics of the old unusable carbon setup). For a ~10-12' screen, the picture is plenty bright. I'm sure that even John Pytlak would approve. We normally use this booth one week every year for the RI Film Fest.

In the lower theatre, we're running 1600w lamps (also in Super Lume-Xes) and getting about 12fl for scope on a 26-foot silver screen. We would like to upgrae to 2kw someday.

Posted by John Pytlak (Member # 331) on 06-27-2005, 09:48 AM:

With proper lamp alignment and no physical problems (tarnished reflector, poor port glass), a 1K lamp should be able to comfortably light a 9 x 21.5 foot matte white screen. For a screen that small, I'd prefer a 2K lamp and to use a 3-blade shutter to minimize shutter flicker.

Posted by Dave Macaulay (Member # 813) on 06-27-2005, 03:19 PM:

The VA characteristics do look like you have a mercury xenon lamp. Maybe they used the "theatre" lamp box because they made a lot of projection xenon lamps and relatively few xenon/mercury lamps and never produced a special box? The envelopes and such are probably the same, the difference would be in the electrode spacing and possibly electrode shape, plus the addition of mercury. The xenon is there so the lamp is easy to start and run during warmup. You may see a blob of mercury in a cold lamp, this vaporizes as the thing heats up and the light spectrum shifts from something approaching a "normal" xenon lamp to almost 100% hard UV light in 10-15 minutes. The mercury spectrum has 4 sharp UV emission lines between 300 and 450nM. Useless for projection, basically.
If you try it with a cinema rectifier it's probably going to get much more current than it likes and might explode in short order.