| 摘要 |
PURPOSE:To absorb the dispersion of the light intensity of each light emitting element and thus contrive the uniformity thereof easily and highly accurately, by trimming each resistor. CONSTITUTION:On the surface of a ceramic substrate 1, a plurality of light emitting elements 21-2n constituted of an LED, a laser diode, etc. are arranged and formed in an array form on a common electrode 2, and each conductor foil 4, connected electrically to each light emitting element 21-2n respectively via a bonding wire 3, is formed. On the back surface of the ceramic substrate 1, resistors for trimming 51-5n corresponded to each light emitting element 21-2n are respectively formed together with electrodes 6. Accordingly, the array is constituted, by electrically connecting each electrode 6 to each conductor foil 4 on the surface side respectively via through holes 7. |
