| 摘要 |
<p>PURPOSE:To make it unnecessary to have an optical axis aligned during assembling and have light-transmitting insulating resin added or so to facilitate work, by putting a light-receiving element, comprising a solar cell, on one main surface of a light-transmitting insulating substrate, and putting a light-emitting element on the other main surface of it, and then covering the light-emitting element with a reflected surface. CONSTITUTION:A quartz glass substrate is used as a light-transmitting insulating substrate 16, with gold patterns printed by thick-film method on one main surface of it to mount a die land 8a and bonding ground 8b. A transparent electrode 13a comprising ITO is formed on the other main surface. A P-type amorphous silicon layer 13b, an I-type amorphous silicon layer 13c, and an N-type amorphous silicon layer 13d are put on it in order. Besides, with an aluminum film put thereon to form an electrode 13e, a thin-film solar cell is formed as a light-receiving element 13, being of type in which light reflected on a reflected surface 14a is received. Therefore, optical-axis alignment and positioning for the light-emitting element 12 and light-receiving element 13 become unnecessary.</p> |
