Automation and miniaturization of optometry instrument based on the ANSI/ISEA Z87.1 standard

The current measurement equipment, which adheres to the ANSI Z87.1 standard measurement method, features an extended path length of nearly 11 m. This extended length poses challenges for laboratories or testing units in terms of space utilization and significantly impacts the energy configuration required for accurate detection. The initial phase of this study focuses on automation, entailing the development of a measuring device equipped with full automation capabilities. This device ensures the precise measurement of diopter and astigmatism data at a consistent and efficient pace. The subsequent phase aims to minimize the distance between the objective lens and the target without altering the fundamental principles of the original diopter testing system. This reduction is achieved through the utilization of optometry automatic detection technology. Concurrently, to complement the scaled-down detection equipment, precision optical targets are manufactured using semiconductor standard photomask fabrication techniques. Results indicate a substantial reduction in equipment size to <1 m, retaining the same level of precision. This reduction significantly economizes the installation space required for the instrument. The implementation of automated measurements minimizes errors stemming from human judgment and allows the device to be employed in the assessment of various safety lenses.