Light acquiring device used in an electronic device comprises a light sensor having a receiving section for receiving light produced by a light source, and an infrared barrier filter element

摘要

Light acquiring device comprises a light sensor (KA) having a receiving section (AA) for receiving light produced by a light source; and an infrared barrier filter element (IRSG) arranged between the receiving section of the light sensor and the light source to prevent light contacting the receiving section in the infrared region.