Simplified Telescope Test Bench Using Autocollimation Mirror

The patent segments the measurement process into two parts: (1) measuring geometric characteristics of optical components using simple distance measurements and videogrammetry, and (2) calculating MTF from these geometric parameters through computational methods. This eliminates the need for a complete classic optical control bench while maintaining measurement capability.

The patent replaces the mechanical-optical measurement system (requiring large optical components, vacuum chambers, and stabilized environments) with a computational approach based on geometric measurements. MTF is calculated from geometric parameters rather than measured directly through complex optical benches.

The measurement system is segmented into low-cost geometric measurement components (distance sensors, cameras) and computational processing, replacing the expensive integrated optical bench. This allows MTF measurement capability to be achieved through software calculation rather than expensive hardware.

The patent uses inexpensive, readily available components (standard cameras, laser distance meters, videogrammetry systems) instead of expensive, specialized optical components. These conventional components can be replaced or upgraded more easily and at lower cost.

The measurement system is divided into portable geometric measurement devices that can be transported to the telescope location, rather than requiring the test object to be brought to a fixed, complex control bench. This enables field measurements at the actual telescope site.

The patent replaces the requirement for a fixed, environment-controlled measurement facility with a computational method that can operate in field conditions. Geometric measurements taken in-situ are processed computationally to determine MTF, eliminating the need for portable vacuum chambers and stabilized optical benches.