Method and device for optically measuring the distance of objects

摘要

The method according to the invention for detecting coordinates by means of structured illumination permits distance to be measured quickly and in a manner which can be scaled over wide ranges without the need for refocusing. By using two diaphragms of variable size which are situated at the object-side and image-side focal points of the observing optical system, it is possible to realise a sensor (probe) which permits switching over between image-side and object-side telecentric imaging for high z-resolution and high x-y-resolution, simultaneous switching over being performed between structured and normal illumination. <IMAGE>