The Christie 118-100112-01 ILS lens is a high-performance, medium-zoom lens engineered for Christie's flagship 3-chip DLP installation and large-venue projectors. As part of Christie's Integrated Lens System (ILS), it is meticulously designed to provide optical excellence and installation flexibility for demanding environments such as control rooms, simulation facilities, and large auditoriums. The lens features a versatile zoom range with dual specifications: a throw ratio of 1.5-2.0:1 for projectors with a native SX+ (1400x1050) resolution, and 1.4-1.8:1 for HD (1920x1080) native projectors. This adjustable range allows system integrators to fine-tune the image size from a fixed projector position, offering valuable adaptability in spaces where the exact throw distance may be constrained or require precise final adjustment during installation. The "0.95" designation refers to its fast f-number (aperture), indicating high light-gathering efficiency crucial for maintaining brightness when paired with high-lumen light engines.

Constructed with precision glass elements featuring advanced anti-reflective coatings, the lens maximizes light transmission while minimizing internal reflections, flare, and chromatic aberration. This results in an image with exceptional edge-to-edge sharpness, high contrast, and accurate color fidelity across the entire field. The optical design is specifically calibrated for the light path and pixel structure of 3-chip DLP projectors, ensuring that the projector's full brightness and color uniformity are faithfully delivered to the screen. The robust, sealed housing protects the internal optics from dust and environmental contaminants, which is vital for maintaining performance in 24/7 operational settings. The lens integrates seamlessly into the projector's motorized control system, allowing for remote adjustment of zoom, focus, and lens shift, which simplifies alignment and calibration, especially in multi-projector, edge-blended arrays.

This Christie ILS lens is a critical enabler for professional system design, providing the optical precision and flexibility needed to meet exacting visual requirements. The ability to zoom allows for perfect image sizing without physically moving the projector, a key advantage in complex installations. Its compatibility with high-output laser or xenon light sources ensures it can handle the intense luminous flux required for large-screen applications without introducing thermal instability. The Christie 118-100112-01 lens exemplifies the sophisticated optical engineering required to transform the raw output of a high-brightness projector into a perfectly scaled, brilliant, and geometrically stable image for mission-critical visualization applications.