Technical data

11
MEDIUM
Overview of ultra-short throw digital projectors
Subject to technical modifications and errors. All technical data and indications of format, weight, brightness or size are approximate values.
Introduction to Ultra-Short Throw Digital Projectors
Introduction to ultra-short throw digital projectors
The design of the ultra-short throw digital projectors
reduces the distance to the projection down to a
minimum and is perfectly suited to use with an
interactive whiteboard, because you can work at
the board without standing in the light beam from the
projector. Due to the extremely short projection
distance, the user is not dazzled and does not throw
a shadow onto the projection surface.
Hitachi CP-A300N/ED-A220N/
CP-AW250N
Page 13
Vivitek D7 series
Page 17
SANYO PDG-DWL2500/PDG-DXL2000
Page 12
Epson EB-440/450W/460/455Wi/465i
Page 14-15
NEC U-series
Page16
Features
l Ultra-short throw digital
projectors have a distance to
image width ratio of below
0.4:1. This means that at a
distance of 40 cm, you achieve
an image width of 1 m
l Ultra-short throw digital
projectors generally have a
fixed focal length and the
projection size is therefore
determined by the distance
l There is no dazzle from the
projector and no the speaker's
shadow is not thrown on the
screen from the speaker on
the screen
l No tripping hazards due to
cables lying around
l Perfect suitability for wall
mounting installations or
mounting on an interactive
board
Tip:
If you intend to use ultra-short
throw digital projector to project
images onto a screen, a so-called
"Tab Tension" screen (refer to
page 100) should be used to
warranty perfect flatness.
Technical data of
ultra-short throw digital projectors
Page 17-18.