6/9/2023 0 Comments Siemens star test chart![]() ![]() Image focus (focus adjustment) is maintained at all focal lengths (zoom-in) and constant distance from object by means of back focal distance adjustment. With unchanged optical focus adjustment and shortest focal length adjust the red and blue pick- up tube until optimum focus is achieved. Find Printer Test Chart Siemens Star Color stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock. If necessary optimize by alternating with optical focus adjustment. With shortest focal length and divergent focus adjust the pick-up tube in W-channel until optimum focus is achieved. Set optical focus at greatest focal length. ![]() ![]() Optical focus: Adjust focus of zoom lens at greatest focal length.īack focal distance (lens): Adjust focus at shortest focal length by regulating lens mechanically with adjustment screw and optimize alternatively with a).īack focal distance (pick-up tubes): If focus varies from channel to channel between greatest and shortest focal length, the individual pick-up tubes must be adjusted mechanically in the optical axis. With the aid of a low transmission filter and by means of low level lighting make sure that the camera is not over modulated with the aperture in the open position. The test targets containig sinusoidal Siemens stars use only structures which lead to constant measurement results independent of the target position relative to the sensor. ![]() SINAMICS Startdrive Basic V17 includes commissioning and diagnostics for the products listed above. It shows a 72 sector Siemens star on a white background. SINAMICS Startdrive V17 is available in two versions. The YE0121 test chart is designed for the adjustment of camera lenses and checking back focal distance. ![]()
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