Re: UMAX Astra 1200S lamp question

Matt Mozur (mozur@emg.sms.siemens.com)
Thu, 25 Feb 1999 16:01:00 -0500

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mmm... an interesting question - I'm not aware of a retail source
for this type of lamp. They are most often used in backlights
for LCD panels, so I'll quess that the scanner amnufacturer will
be the only practical source.

mm

----------
> From: Wing T. Wong <wtang7607@zippnet.net>
> To: sane-devel@mostang.com
> Subject: Re: UMAX Astra 1200S lamp question
> Date: Thursday, February 25, 1999 7:52 AM
>
> On the topic of the scanner, just bought a 1220S recently.. :)
>
> If the lamp does burn out or something, where do we go to buy a new one
> and how would we go about installing it? (This might be off topic, so I
> apologize)
>
> Wing.
>
>
> On 25 Feb 1999, Zygo Blaxell wrote:
>
> > In article <9902251704.AA23776@beast.emg.sms.siemens.com>,
> > Matt Mozur <sane-devel@mostang.com> wrote:
> > >I also have a 1220S - the lamp does stay on for a while, but
eventually
> > >does shut off. it seems to be controlled by the scanner - as you
said,
> > >there doesn't seem to be any way to do it via the driver.
> >
> > It does shut off? How long does this take? I've left the scanner
alone
> > at night and the next morning the lamp is still on. Maybe it's getting
> > some stray SCSI commands across the bus and those are keeping the lamp
on?
> >
> > >Maybe I'll check the UMAX web site....
> >
> > It seems to be somewhat dead at the moment, at least from here.
> > It's a little disturbing when a mailing list provides useful
information
> > faster than a vendor's web site. :-/
> >
> > >P.S. I believe that they use a cold cathode fluorescent lamp -
nowadays
> > >these lamps have lifetimes in excess of 25,000 hours to 50% luminance.
> > >I've seen some lamps quoted now in excess of 40K hours.
> >
> > 25K hours is ~3 years. Not quite solid-state, but close enough I
guess...
> >
> > --
> > Zygo Blaxell, Linux Engineer, Corel Corporation, zygob@corel.ca (work),
> > zblaxell@furryterror.org (play). It's my opinion, I tell you! Mine!
All MINE!
> > Size of 'diff -Nurw [...] winehq corel' as of Thu Feb 25 12:14:00 EST
1999
> > Lines/files: In 38 / 1, Out 8116 / 149, Both 8079 / 148
> >
> > --
> > Source code, list archive, and docs: http://www.mostang.com/sane/
> > To unsubscribe: echo unsubscribe sane-devel | mail
majordomo@mostang.com
> >
>
>
> --
> Source code, list archive, and docs: http://www.mostang.com/sane/
> To unsubscribe: echo unsubscribe sane-devel | mail majordomo@mostang.com
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mmm... an interesting question - I'm = not aware of a retail source
for this type of lamp.  They are = most often used in backlights
for LCD panels, so I'll quess that the = scanner amnufacturer will
be the only practical = source.

mm

----------
> From: Wing T. Wong <wtang7607@zippnet.net>
> To: sane-devel@mostang.com
> Subject: Re: UMAX Astra 1200S lamp = question
> Date: Thursday, February 25, 1999 7:52 AM
> =
> On the topic of the scanner, just bought a 1220S recently.. = :)
>
> If the lamp does burn out or something, where do we = go to buy a new one
> and how would we go about installing it? = (This might be off topic, so I
> apologize)
>
> = Wing.
>
>
> On 25 Feb 1999, Zygo Blaxell = wrote:
>
> > In article <9902251704.AA23776@beast.emg.sms.siemens.com>,
> > Matt Mozur <sane-devel@mostang.com> wrote:
> > >I also have a 1220S - the = lamp does stay on for a while, but eventually
> > >does shut = off.  it seems to be controlled by the scanner - as you said, =
> > >there doesn't seem to be any way to do it via the = driver.
> >
> > It does shut off?  How long does = this take?  I've left the scanner alone
> > at night and = the next morning the lamp is still on.  Maybe it's getting
> = > some stray SCSI commands across the bus and those are keeping the = lamp on?
> >
> > >Maybe I'll check the UMAX web = site....
> >
> > It seems to be somewhat dead at the = moment, at least from here.  
> > It's a little disturbing = when a mailing list provides useful information
> > faster than = a vendor's web site.  :-/
> >
> > >P.S. =  I believe that they use a cold cathode fluorescent lamp - = nowadays
> > >these lamps have lifetimes in excess of 25,000 = hours to 50% luminance.
> > >I've seen some lamps quoted now = in excess of 40K hours.
> >
> > 25K hours is ~3 = years.  Not quite solid-state, but close enough I guess...
> = >
> > --
> > Zygo Blaxell, Linux Engineer, Corel = Corporation, zygob@corel.ca (work),
> > zblaxell@furryterror.org (play).  It's my opinion, I tell you! Mine! All = MINE!
> > Size of 'diff -Nurw [...] winehq corel' as of Thu Feb = 25 12:14:00 EST 1999
> > Lines/files:  In 38 / 1, Out 8116 = / 149, Both 8079 / 148
> >
> > --
> > Source = code, list archive, and docs: http://www.mostang.com/sane/
> > To unsubscribe: echo unsubscribe = sane-devel | mail majordomo@mostang.com
> >
>
>
> --
> = Source code, list archive, and docs: http://www.mostang.com/sane/
> To unsubscribe: echo unsubscribe sane-devel | = mail majordomo@mostang.com

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