Method for testing an optical sensor and testable optical sensor

摘要

The method involves testing individual detector segments (41-49) by radiating test light (61, 65, 69) from an infra red LED to the detector segments. The test lights are differently selected in a sufficient manner for measuring technical differentiation of reactions of the spatially adjacent detector segments (41, 42), during normal function of the detector segments. Reaction of the individual detector segments to the radiation of the test light is evaluated individually or in comparison with reactions of the adjacent segments. An error signal is delivered in dependent of the evaluation. An independent claim is also included for a sensor with a reflector.