Archived from groups: alt.tv.tech.hdtv (More info?
I am looking at a toshiba dlp and it has 2 lamp modes, info from the site
pasted below, I think most sets have this
Toshiba DLPT Projection TVs utilize a 120-Watt DC lamp. In addition to
exceptional light purity and reduced flicker, this lamp also has two
user-friendly features. High Brightness and Low Power Modes allow the user
to choose 120-Watt Mode for daytime with ambient room light, and 100-Watt
Mode for nighttime in a dark room, to extend the lamp life. This lamp also
has the unique Instant Restart feature, allowing the TV to be turned on
immediately after shutdown, unlike other lamp-based TVs.
"Badger" <firstname.lastname@example.org> wrote in message
> Contrast ratio has to do with the amount of detail you can see. The
> higher the ratio the better. I can't imagine why you would get eye
> strain. Unless you just get eye strain. Then you would not want to
> change contrast, you would change brightness.
> "Tecumseh" <email@example.com> wrote in message
>> I know 1500:1 is a common CR and 2500:1 is out there as well. If a
> tv has
>> 2500:1, can you switch it to 1500:1.
>> My concern is that if you watch tv for a couple hours you may get
> eye strain
>> etc.....with the higher ratio and also, it would be nice to switch
> back and
>> forth to see which you like better.
>> Also, if you have a 120W bulb, can you tier it down to 100W? Does
> this just
>> cover brighteness or CR as well?
>> Take Care