Patent ID: 9182545
Filing Date: 2015-11-10
Classification: G02B,H01L

Abstract:
1. An optical device, comprising: a first substrate including light-receiving elements; a second substrate disposed on the first substrate, wherein the second substrate includes optical elements located within through-holes of the second substrate, and the through-holes are configured to substantially align each of the optical elements in the second substrate with a corresponding one of the light-receiving elements in the first substrate; a spacer substrate disposed between the first substrate and the second substrate; and one or more light sources provided above the second substrate, wherein the one or more light sources are configured to irradiate a light through each of the optical elements in the second substrate onto the corresponding one of the light-receiving elements in the first substrate such that a position of each of the optical elements in the second substrate is adjusted relative to the corresponding one of the light-receiving elements in the first substrate based on a light intensity detected by the light-receiving elements.