Protocol Document

Christie LW401
NEC P451W
Panasonic PT-VW330U
horizontal keystone correction
±30 degrees. Lamp-life is up to
4,000 hours in eco-mode and up
to 2,500 in normal mode. The
projector’s native resolution is
XGA.
The Christie LW401 is also a
three-LCD unit that promotes
brightness and versatility. It
creates 4,000 lumens and has
1,280x800-pixel WXGA wide-
screen resolution. Christie offers
a number of optional lenses with
repeatable position recall
capabilities, and also has an
optional wireless module for
device flexibility and easy
presentation set-up.
The LW401’s lamp is a long-life
245-Watt UHP (ultra-high
performance) model that is
predicted to last up to 2,500
hours in normal use and 4,000 hours in eco-mode. Built-in security
features limit access to
the projector’s controls and menus. The LW401 is compatible with AMX Device Discovery
and Crestron RoomView, making the projector easier to connect to control systems.
Christie notes that the LW401 can be used at altitudes up to 10,000 feet.
LOWER-COST OPERATION
With 5,000 hours of lamp life in normal mode and 6,000 hours in eco mode, the Hitachi CP
-WX3030WN puts emphasis on lower cost of operation. It automatically changes the
brightness of the lamp according to the brightness level of the screen. It also
automatically changes the brightness of the lamp if there is no change in the screen
image. Power-saving standby mode is less than 0.5 Watt.
ImageCare technology completes
the theme by controlling lamp
power, decreasing energy usage
and improving contrast ratio. The
CP-WX303WN produces 3,000
lumens at WXGA (1,280x800-
pixel) resolution. An optional
multi-functional switcher
provides wired and wireless
source selection as well as
switching options for connected
devices. The projector can also
accommodate a USB memory
stick.
Panasonic also focuses on lowering the cost of operation with its PT-
VW330U. Weighing in
at 7.7 lbs., the PT-VW33U has a 3LCD lamp configuration and focuses on reduced
maintenance. The lamp has a 5,000 hour replacement cycle and the projector’
s proprietary
3-layer filter is designed for
replacement after 6,000 hours. Resolution is 1,280x800 pixels,
with 3,000 lumens of brightness.
The PT
-VW33U’s inputs include HDMI, composite and S-video, and it has a built-in 10-
Watt audio amplifier and speaker, with a microphone input. There is also a built-in closed-
caption decoder.
The Canon LV
-7490 combines brightness with low maintenance. It is Canon’s first 4,000-
lumen portable LCD projector, and it has projected lamp life up to 5,000 hours. It has
native XGA resolution at 1,024x768 pixels and a 1.2x optical zoom lens. This allows
location of the projector in the best spot in a room, and projection throw distances from
4.6 to 41.7 feet with screen sizes of 40 to 300 inches.
The Canon LV
-7490 has stereo inputs, and outputs allow audio to be played through
external speakers. Its built-in RJ-45 port enables
centralized control and monitoring from a
networked PC.
WHERE’S THE LAMP?
Casio has taken a different path towards high brightness, resolution and low maintenance
with its XJ-H2650 lamp-free projector technology. By combining a laser, a fluorescent
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GovernmentVideo: Portable Projectors Slim Down, Get Bright
12/23/2013
http://www.governmentvideo.com/article/portable
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bright/114884