Implementation of Led Projector

Two LCOS full color projector with efficient LED illumination engine

LED-based projectors have numerous advantages compared to traditional projectors. They are more compact, exhibit a larger color gamut and a longer lifetime, the supply voltage is lower and they can operate on batteries. However their light output is limited by the low optical power per étendue of the LEDs, although this is also improving constantly. With an efficient illumination engine design ...

Novel Carbazole Skeleton-Based Photoinitiators for LED Polymerization and LED Projector 3D Printing.

Radical chemistry is a very convenient way to produce polymer materials. Here, an application of a particular photoinduced radical chemistry is illustrated. Seven new carbazole derivatives Cd1-Cd7 are incorporated and proposed as high performance near-UV photoinitiators for both the free radical polymerization (FRP) of (meth)acrylates and the cationic polymerization (CP) of epoxides utilizing L...

Real-space grid implementation of the projector augmented wave method

LED projector with two liquid crystal on silicon light valves and a fly's eye integrator

0141-9382/$ see front matter 2008 Elsevier B.V. A doi:10.1016/j.displa.2008.03.003 * Corresponding author. Tel.: +32 2 6293658; fax: + E-mail addresses: [email protected], bart Giel). We present a projection system with two liquid crystal on silicon light valves that are illuminated by light-emitting diode light sources (LEDs). The LED illumination system is designed with a fly’s eye inte...

Achromatic design in the illumination system for a mini projector with LED light source.

We provide a novel achromatic design in the illumination system for a mini projector with an LED light source. The lateral color aberration at the corners of the DMD active area can be reduced to 0.48 μm by our compact ATIR prism. The total prism size is 4091 mm(3). The spot sizes at the corner and the edge are also controlled under 198 μm. Moreover, we use a light pipe for color uniformity at ...