CALIBRATION LIGHT SOURCE, OPTICAL SENSOR ARRANGEMENT, AND METHOD FOR ASSEMBLY LINE IN-SITU CALIBRATION OF AN OPTICAL DEVICE COMPRISING AN OPTICAL SENSOR

摘要

An assembly line in-situ calibration arrangement, optical sensor arrangement and a method for calibration of an optical sensor arrangement are presented. A calibration arrangement (1) comprises a calibration head (10) comprising at least one calibrated light source (17R, 17G, 17B) located behind an aperture in a housing (11) and being electrically connected to a power terminal. A power source (30) is connected to the power terminal, the power source (30) comprising a switching unit (32R, 32G, 32B, 32C) electrically connected to the at least one light source (17R, 17G, 17B). An interface unit (40) is connected to the switching unit (32R, 32G, 32B, 32C) by means of an interface connection (41), wherein the interface unit (40) is arranged to control the switching unit (32R, 32G, 32B, 32C). A control unit (50) is connected to the interface unit (40), wherein the control unit (50) is arranged to drive the interface unit (40) such that the at least one light source (17R, 17G, 17B) is switched to emit a calibration pulse sequence to be received by the optical sensor arrangement (2) to be placed with respect of the aperture. The calibration pulse sequence is arranged to initiate a calibration mode of operation of the optical sensor arrangement (2).