Patent ID: 8995493
Filing Date: 2015-03-31
Classification: H01S,H04B

Abstract:
1. An optical device, comprising: a monolithic laser array including a plurality of vertical cavity surface emitting laser (VCSEL) devices and a plurality of raised inactive regions on an electrical contact, the VCSEL devices being arranged in a pattern on a substrate of the laser array, each of the VCSEL devices generating a beam of light having an axis; and a plurality of refractive micro lenses formed within the substrate, each microlens among the plurality of microlenses being located over a corresponding VCSEL device, each microlens in a set of microlenses among the plurality of microlenses being positioned over each corresponding VCSEL device at an offset relative to the axis of the VCSEL device so as collimate or concentrate the beam of light emitted by the corresponding VCSEL device to a target or for scanning without requiring optical elements external to the laser array to collimate or concentrate the light for illumination of the target.