| 摘要 |
PURPOSE:To make the mechanical alignment of the optical axis of a luminous element array with the same of a micro-lense array unnecessary and miniaturize the title device by a method wherein the micro-lense array is formed on one side of an amorphous transparent substrate while the luminous element array is formed on the other side of the same while aligning the light emitting positions thereof with the optical axis of the micro-lens array so as to be monolithic. CONSTITUTION:An amorphous transparent substrate 1 is employed as the substrate and a micro-lense array 2 is formed on one side of the substrate while a luminous element array 3 is formed on the other side of the substrate while aligning the light emitting positions of the array 3 with the optical axis of the micro-lense array 2 so as to be monolithic respectively. The relative alignment of the optical axises of the array 3 and the array 2 is effected upon integrating and, therefore, the title device is stabilized. Accordingly, mechanical alignment of the optical axises may not be necessitated when a photo-printer is constituted of said light emitting device while a distance with respect to a photosensitive drum may be shortened and it becomes favorable to miniaturize the device. |
