| 摘要 |
PURPOSE:To make a ratio of a light receiving element output against a light receiving area a constant value by a method wherein a surplus component due to the incident light at the periphery of a light receiving surface is eliminated from the output of a light receiving element. CONSTITUTION:A part excluding the peripheral area of an original light receiving plane 10 and aluminum electrodes 6, 7 is taken as a light shielding coating film 11 and it is formed with aluminum along with the aluminium electrodes 6, 7 simultaneously. With this constitution, an incident light to the original light recieving plane 10 is shielded with the light shielding coating film 11, as a esult, generation of surplus component of the light receiving element output can be eliminated and a ratio of the light receiving element output against a light receiving area can be made a constant value. The above-mentioned light shielding coating film 11 can be formed with aluminum at a part excluding the original light receiving plane 10 on an insulating coated film which is installed after the aluminum electrodes 6, 7 are formed. |
