Scanning unit for detection of optical measure embodiments, has aperture diaphragm array arranged in picture-sided focal plane of micro lens array, and aperture opening is located in picture-lateral focal point of each micro lens of array

摘要

The unit (1) has a light transmitter, a scanning receiver, an optical auxiliary scanning diaphragm (20) and micro lens array (30).The optical measure embodiments (100) have an optical position coding. An aperture diaphragm array (40) is arranged in the picture-sided focal plane of the micro lens array, such that an aperture diaphragm opening (41) is located in the picture-lateral focal point of each micro lens (31) of the micro lens array. The scanning diaphragm, the aperture diaphragm array and the micro lens array are positioned on each other in the given series directly on the surface of the scanning receiver (10) above the photo-sensitive receiver field. An independent claim is also included for the position measuring unit for the scanning of optically coded measure embodiments.