The i-Optik TL-6900 Auto Lensmeter is an advanced ophthalmic instrument designed to provide fast, accurate, and reliable measurements of spectacle lenses and other optical lenses. It uses an enhanced Hartmann measurement system with up to 249 measuring points to deliver precise readings, including sphere, cylinder, axis, prism, and add power, and is suitable for single-vision, multifocal, and progressive lenses. The device also supports UV and blue-light transmittance/blocking rate measurement, giving valuable data about protective coating performance. Featuring a high-resolution color TFT touchscreen, built-in thermal printer, and multiple connectivity options (like RS-232 and Bluetooth), the TL-6900 is ergonomically designed for ease of use in vision centers and optical laboratories. Its capability to handle low-transmittance lenses (e.g., dark sunglasses) and to interface with other equipment like auto phoropters enhances workflow efficiency in clinical settings.