Light sensor and manufacturing method therefor

TL;DR: In this paper, the inclination angle of the window glass of a vehicle to which the detection unit (121) is provided is used to adjust the adjustment value of the detection signal from the preselected detection elements (160-172) to reach a target value.

Abstract: A light sensor, wherein a detection unit (121) comprises a plurality of detection elements (160-172) that output the intensity of received light as detection signals, and a light shielding unit (173) that sets the light directionality characteristics of the detection elements (160-172) so the intensities of light received from specific directions differ from one another. A signal processing unit (130) has an adjustment value for performing signal processing on the detection signals. The adjustment value is set in the following manner: on the basis of information about the inclination angle of window glass (210) in a vehicle (200) to which the detection unit (121) is provided, detection elements (160-172) having light directionality characteristics suitable for the inclination angle are pre-selected from among the detection elements (160-172), and when the detection unit (121) is irradiated with light from a specific direction while the detection unit (121) is inclined at the inclination angle, the adjustment value is set so that the signal value of the detection signals from the pre-selected detection elements (160-172) reaches a target value.