Abstract
The Need:
Virtually all microdisplay-based projection systems built to date have used an
HID lamp such as the UHP as a light source. LEDs are beginning to appear as
light sources to replace lamps. There is a need for an evaluation of LEDs in
terms of technology, price and performance and to compare these parameters to
the existing arc lamp sources and forecast the penetration of LEDs into the
projection markets.
Report Objective:
The objective of this report is to supply managers, product planners,
engineers and researchers with the information needed to evaluate LED
technology in proposed projection displays. The required information needed to
make these decisions includes performance data, cost information and
availability. Key to understanding these parameters is optical modeling of
projection systems to determine how LED light can be coupled into the etendue
of the projection system.
LED performance is expected to improve dramatically over the next several
years. One objective of this report is to determine when it will be feasible
to introduce LEDs into any particular market segment of the projection market,
in competition with HID lamps and lasers.
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