The Konica Minolta Christie 0.73:1 ultra-short throw projection lens is a specialized optical assembly engineered for high-brightness, large-venue professional projectors utilizing a 0.94-inch SXGA+ (1400x1050) DLP or LCD imaging panel. Its defining characteristic is an exceptionally low throw ratio of 0.73:1, enabling the projector to cast a very large image from an extremely short distance to the screen. This design is critical for installations with severe space constraints, such as interactive displays in classrooms, digital signage in narrow corridors, rear-projection cubes, or immersive environments where the projector must be positioned close to the screen to avoid casting shadows from presenters or viewers. The lens is meticulously corrected for geometric distortion, a paramount challenge in ultra-short throw optics, to deliver a rectangular image with straight edges across the entire projected area.

Constructed for integration into Christie's series of installation-grade projectors, this lens features a robust all-metal barrel and high-quality multi-element glass construction. The optical formula is designed to handle the intense light output and thermal load of high-lumen xenon or laser phosphor light sources without compromising image fidelity. It maintains sharp focus edge-to-edge and minimizes chromatic aberration, ensuring that detailed SXGA+ content is rendered with clarity and color accuracy. The lens is typically equipped with motorized zoom, focus, and lens shift functions—controlled via the projector's menu system or external automation—allowing for precise digital alignment and calibration during installation to perfectly fit the image onto fixed screens of various sizes and positions.

This lens represents a precision tool for system integrators, facilitating flexible and discreet installation scenarios that would be impossible with standard-throw lenses. Its performance is integral to creating seamless video walls, large-scale simulations, and command-and-control displays where space behind the screen is limited and visual impact must be maximized. By enabling projectors to operate effectively in confined spaces while maintaining high resolution and brightness, the Konica Minolta Christie 0.73:1 lens expands the architectural possibilities for professional visual solutions, making it a key component in advanced, custom-fitted projection systems.