Synthesis Electro-optics 2 Tele. Virtual Optical Bench Program Series Fig. 6-2 shows a the same system converted to a basic telecentric system as it is used in metrology.
Principal rays are parallel to the optical axis at the object and go through the focus.
The object width varies between 300 and 20 mm in step of 10 mm. In order to minimize file size the avi file was converted to an animated gif. Animated telecentric system with aperture stop of 1 mm Fig. 6-2 shows a record of the corresponding spot size for three object heights. Variation of spot sizes for telecentric system with aperture stop of 1 mm Fig.