Method for forming images,method for testing electronic devices;and test apparatus,test chamber and test system

摘要

The test system includes an electronic device comprising a camera (202) for forming an image (310) on a detector (208). A holographic element (300) of the test system and the camera (202) under test of the electronic device are arranged during testing to be placed at a predetermined distance (320) from one another where the holographic element (300) is unfocused in the image field of the camera under test, and the holographic element (300) comprises a holographic test image (302) that is arranged to form a focused i mage on the detector of the camera operating as desired.