Core Points - The article discusses the passing of David Keighley, the founder of IMAX technology, who died at the age of 78, highlighting his significant contributions to the film industry and the IMAX experience [3][27] - Keighley's work ensured that IMAX not only provided a superior viewing experience but also maintained high standards in cinema quality and artistic integrity [20][24] IMAX Technology Development - IMAX technology originated in 1967 at the Montreal Expo, where a large screen was created using seven projectors, marking the beginning of IMAX [7][9] - The use of 70mm film in IMAX, which is three times the size of standard film and nearly ten times the area of 35mm film, allows for clearer and larger images [9][10] - Keighley developed the DMR (Digital Remastering) technology, which enhances standard 35mm films to IMAX quality through digital optimization [12][14] Quality Assurance and Standards - Keighley established a rigorous IMAX Quality Assurance system to ensure consistent viewing experiences across all IMAX theaters globally [20][22] - This system includes regular checks on brightness, sound calibration, and overall cinema conditions to maintain IMAX's high standards [22][24] Artistic Contributions - Keighley played a crucial role in preserving the artistic intentions of filmmakers, ensuring that the unique aspects of IMAX, such as its aspect ratios, were effectively utilized [24][25] - His attention to detail allowed directors like Christopher Nolan to confidently use complex compositions that demanded high-quality projection [25][27] Legacy - David Keighley's contributions have left a lasting impact on the IMAX brand, transforming it from a technological innovation into an artistic phenomenon [27]